TW202313507A - Colored glass articles having improved mechanical durability - Google Patents

Abstract

A colored glass article includes greater than or equal to 50 mol% and less than or equal to 80 mol% SiO2; greater than or equal to 7 mol% and less than or equal to 25 mol% Al2O3; greater than or equal to 1 mol% and less than or equal to 15 mol% B2O3; greater than or equal to 5 mol% and less than or equal to 20 mol% Li2O; greater than or equal to 0.5 mol% and less than or equal to 15 mol% Na2O; greater than 0 mol% and less than or equal to 1 mol% K2O; and greater than or equal to 1 x 10<SP>-6</SP> mol% and less than or equal to 1 mol% Au. R2O - Al2O3 is greater than or equal to -5 mol% and less than or equal to 7 mol%, R2O being the sum of Li2O, Na2O, and K2O.

Description

Colored glass articles with improved mechanical durability

This application asserts under the patent law U.S. Application No. 17/677,345, filed February 22, 2022, U.S. Application No. 17/677,375, filed February 22, 2022, filed January 31, 2022 U.S. Provisional Application No. 63/304,807 filed on October 4, 2021, U.S. Provisional Application No. 63/251,785 filed on October 4, 2021, and U.S. Provisional Application No. 63/212,191 filed on June 18, 2021 priority interests, the content of each of which is hereby attached and incorporated herein by reference in its entirety.

This specification relates generally to glass compositions and glass articles, and more particularly to glass compositions and resulting ion-exchangeable colored glass articles.

Aluminosilicate glass products can exhibit excellent ion exchange and drop performance. Various industries, including the consumer electronics industry, desire ferrous materials to have the same or similar strength and fracture toughness properties. However, simply including colorants in conventional aluminosilicate glass compositions may not produce the desired color.

Therefore, there is a need for alternative colored glass products with high strength and fracture toughness.

According to the first aspect A1, the colored glass article may contain: greater than or equal to 50 mol % and less than or equal to 80 mol % of SiO ₂ ; greater than or equal to 7 mol % and less than or equal to 25 mol % of SiO 2 Al ₂ O ₃ ; B ₂ O ₃ greater than or equal to 1 mol % and less than or equal to 15 mol %; greater than or equal to 5 mol % and less than or equal to 20 mol % Li ₂ O; greater than or equal to Na ₂ O equal to 0.5 mol% and less than or equal to 15 mol%; K ₂ O greater than 0 mol% and less than or equal to 1 mol%; and greater than or equal to 1× ^10-6 mol% And less than or equal to 1 mol% of Au, wherein: R ₂ O-Al ₂ O ₃ is greater than or equal to -5 mol% and less than or equal to 7 mol%, R ₂ O is Li ₂ O, The sum of Na ₂ O and K ₂ O.

According to the second first aspect A1.1, the colored glass article may contain: greater than or equal to 50 mol % and less than or equal to 80 mol % of SiO ₂ ; greater than or equal to 7 mol % and less than or equal to 25 mol% _{of Al2O3} ; greater than or equal to 1 mol% and less than or equal to 15 mol _% of _B2O3 ; greater than or equal to 7 mol% and less than or equal to 20 mol% of Li ₂ O; greater than or equal to 0.5 mol % and less than or equal to 12 mol % Na ₂ O; greater than 0 mol % and less than or equal to 1 mol % K ₂ O; and greater than or equal to 1 x 10 ^-6 mol% and less than or equal to 1 mol% of Au, wherein: R ₂ O-Al ₂ O ₃ is greater than or equal to -5 mol% and less than or equal to 5 mol%, R ₂ O is It is the sum of Li ₂ O, Na ₂ O, and K ₂ O.

The second aspect A2 comprises the colored glass article according to the first aspect A1 or the second first aspect A1.1, wherein the colored glass article has an article thickness of 1.33 mm under F2 illumination and a standard observer angle of 10° Measured transmission color coordinates in CIELAB color space where: L* is greater than or equal to 50 and less than or equal to 100; a* is greater than or equal to -15 and less than or equal to 25; and b* is greater than or equal to - 25 and less than or equal to 25.

A third aspect A3 includes the colored glass article according to the second aspect A2, wherein R ₂ O—Al ₂ O ₃ is greater than or equal to -5 mol% and less than or equal to 1.5 mol%; and wherein b* is Greater than or equal to -25 and less than or equal to 10.

A fourth aspect A4 includes the colored glass article according to the third aspect A3, wherein R ₂ O—Al ₂ O ₃ is greater than or equal to -3 mol% and less than or equal to 1.5 mol%; and wherein b* is Greater than or equal to -15 and less than or equal to 7.

A fifth aspect A5 includes the colored glass article according to the second aspect A2, wherein R ₂ O—Al ₂ O ₃ is greater than 1.5 mol % and less than or equal to 7 mol %; and wherein b* is greater than or equal to 0 and less than or equal to 25.

A sixth aspect A6 includes the colored glass article according to the fifth aspect A5, wherein R ₂ O—Al ₂ O ₃ is greater than 1.5 mol % and less than or equal to 5 mol %; and wherein b* is greater than or equal to 0 and less than or equal to 15.

The seventh aspect A7 includes _the colored article according to any one of the first to sixth aspects A1-A6, wherein _R2O - _Al2O3 is greater than or equal to -3 mol% and less than or equal to 5 Mole %.

The eighth aspect A8 includes the colored glass product according to the seventh aspect A7, wherein the R ₂ O—Al ₂ O ₃ system is greater than or equal to −1 mol% and less than or equal to 3 mol%.

A ninth aspect A9 includes the colored article according to any one of the first to eighth aspects A1-A8, wherein the colored glass article includes greater than or equal to 0.0001 mol% and less than or equal to 0.1 mol% of Au.

The tenth aspect A10 includes the colored article according to any one of the first to ninth aspects A1-A9, wherein R ₂ O is greater than or equal to 6 mol% and less than or equal to 25 mol%.

The eleventh aspect A11 includes the colored glass article according to the tenth aspect A10, wherein R ₂ O is greater than or equal to 8 mol% and less than or equal to 23 mol%.

A twelfth aspect A12 includes the colored article according to any one of the first to eleventh aspects A1-A11, wherein the colored glass article contains greater than or equal to 0.01 mol % and less than or equal to 2 mol % ZrO ₂ .

A thirteenth aspect A13 includes the colored glass article according to the twelfth aspect A12, wherein the colored glass article contains ZrO ₂ greater than or equal to 0.1 mol % and less than or equal to 1.5 mol %.

A fourteenth aspect A14 includes the colored article according to any one of the first to thirteenth aspects A1-A13, wherein the colored glass article contains greater than or equal to 0.01 mol % and less than or equal to 1 mol % Fe ₂ O ₃ .

A fifteenth aspect A15 includes the colored article according to the fourteenth aspect A14, wherein the colored glass article includes greater than or equal to 0.05 mol % and less than or equal to 0.5 mol % of _{Fe2O3 .}

The sixteenth aspect A16 includes the colored article according to any one of the first to fifteenth aspects A1-A15, wherein 5.72*Al ₂ O ₃ (mol%)-21.4*ZnO (mol%)- 2.5*P ₂ O ₅ (Mole %)-35*Li ₂ O (Mole %)-16.6*B ₂ O ₃ (Mole %)-20.5*MgO (Mole %)-23.3*Na ₂ O ( Mole %)-27.9*SrO (Mole %)-18.5*K ₂ O (Mole %)-26.3*CaO (Mole %) is greater than -609 Mole %.

The seventeenth aspect A17 includes the colored glass article according to any one of the first to sixteenth aspects A1-A16, wherein the colored glass article contains 0.01 mol% or more and 1 mol% or less SnO ₂ .

An eighteenth aspect A18 includes the colored glass article according to the seventeenth aspect A17, wherein the colored glass article contains SnO ₂ greater than or equal to 0.05 mol % and less than or equal to 0.75 mol %.

A nineteenth aspect A19 includes the colored glass article according to any one of the first to eighteenth aspects A1-A18, wherein the colored glass article does not substantially contain MgO, CaO, ZnO, Cl, or combinations thereof.

A twentieth aspect A20 includes the colored glass article according to any one of the first to nineteenth aspects A1-A19, wherein the colored glass article contains 7 mol% or more and 18 mol% or less Li ₂ O.

A twenty-first aspect A21 includes the colored glass article according to the twentieth aspect A20, wherein the colored glass article includes _Li2O greater than or equal to 9 mol % and less than or equal to 16 mol %.

The twenty-second aspect A22 includes the colored glass article according to any one of the first to twenty-first aspects A1-A21, wherein the colored glass article contains greater than or equal to 1 mol % and less than or equal to 12 mol % % Na ₂ O.

A twenty-third aspect A23 includes the colored glass article according to the twenty-second aspect A22, wherein the colored glass article includes _Na2O greater than or equal to 2 mol % and less than or equal to 10 mol %.

A twenty-fourth aspect A24 includes the colored glass article according to any one of the first to twenty-third aspects A1-A23, wherein the colored glass article contains greater than or equal to 0.1 mol % and less than or equal to 0.5 mol % Ear % K ₂ O.

A twenty-fifth aspect A25 includes the colored glass article according to any one of the first to twenty-fourth aspects A1-A24, wherein the colored glass article contains greater than or equal to 9 mol % and less than or equal to 23 mol % % Al ₂ O ₃ .

A twenty-sixth aspect A26 includes the colored glass article according to the twenty-fifth aspect A25, wherein the colored glass article includes greater than or equal to 11 mol % and less than or equal to 20 mol % Al ₂ O ₃ .

A twenty-seventh aspect A27 includes the colored glass article according to any one of the first to twenty-sixth aspects A1-A26, wherein the colored glass article contains 2 mol% or more and 12 mol% or less Ear % B ₂ O ₃ .

A twenty-eighth aspect A28 includes the colored glass article according to the twenty-seventh aspect A27, wherein the colored glass article includes greater than or equal to 3 mole % and less than or equal to 10 mole % of _{B2O3 .}

The twenty-ninth aspect A29 includes the colored glass article according to any one of the first to twenty-eighth aspects A1-A28, wherein the colored glass article contains greater than or equal to 52 mole % and less than or equal to 75 mole % ear % SiO ₂ .

A thirtieth aspect A30 includes the colored glass article according to any one of the first to twenty-ninth aspects A1-A29, wherein the colored glass article has a thickness of 250 μm or more and 6 mm or less.

A thirty-first aspect A31 includes the colored glass article according to any one of the first to thirtieth aspects A1-A30, wherein the colored glass article is an ion-exchanged colored glass article.

A thirty-second aspect A32 includes the colored glass article according to the thirty-first aspect A31, wherein the ion-exchanged colored glass article has a depth of compression of 10 μm or more.

Thirty-third aspect A33 includes the colored glass article according to thirty-first aspect A31 or thirty-second aspect A32, wherein the ion-exchanged colored glass article has a thickness "t" and a compression greater than or equal to 0.15t depth.

A thirty-fourth aspect A34 includes the colored glass article according to any one of the thirty-first to thirty-third aspects A31-A33, wherein the ion-exchanged colored glass article has a surface compressive stress greater than or equal to 300 MPa .

A thirty-fifth aspect A35 includes the colored glass article according to any one of the thirty-first to thirty-fourth aspects A31-A34, wherein the ion-exchanged colored glass article has a maximum central tension of 40 MPa or greater .

According to the thirty-sixth aspect A36, the consumer electronic device may include: a casing having a front surface, a rear surface, and a side surface; , and a display, the display is disposed at or adjacent to the front surface of the casing; wherein the casing includes the colored glass product according to any one of the first to thirty-fifth aspects A1-A35.

According to the thirty-seventh aspect A37, the glass composition may contain: SiO ₂ greater than or equal to 50 mol % and less than or equal to 80 mol %; greater than or equal to 7 mol % and less than or equal to 25 mol % % of Al ₂ O ₃ ; greater than or equal to 1 mol % and less than or equal to 15 mol % of B ₂ O ₃ ; greater than or equal to 5 mol % and less than or equal to 20 mol % of Li ₂ O; More than or equal to 0.5 mol% and less than or equal to 15 mol% of Na ₂ O; more than 0 mol% and less than or equal to 1 mol% of K ₂ O; and greater than or equal to 1×10 ^-6 mol mol% and less than or equal to 1 mol% of Au, wherein: R ₂ O-Al ₂ O ₃ is greater than or equal to -5 mol% and less than or equal to 7 mol%, R ₂ O is Li ₂ The sum of O, Na ₂ O, and K ₂ O.

According to the second thirty-seventh aspect A37.1, the glass composition may contain: SiO ₂ greater than or equal to 50 mol % and less than or equal to 80 mol %; greater than or equal to 7 mol % and less than Or equal to 25 mol% of Al ₂ O ₃ ; greater than or equal to 1 mol% and less than or equal to 15 mol% of B ₂ O ₃ ; greater than or equal to 7 mol% and less than or equal to 20 mol% Li ₂ O of greater than or equal to 0.5 mol % and less than or equal to 12 mol % of Na ₂ O; greater than 0 mol % and less than or equal to 1 mol % of K ₂ O; and greater than or equal to 1 ×10 ^-6 mol% and less than or equal to 1 mol% of Au, wherein: R ₂ O-Al ₂ O ₃ is greater than or equal to -5 mol% and less than or equal to 5 mol%, R ₂ The O system is the sum of Li ₂ O, Na ₂ O, and K ₂ O.

The thirty-eighth aspect A38 includes the glass composition according to the thirty-seventh aspect A37 or the second thirty-seventh aspect A37.1, wherein the R ₂ O-Al ₂ O ₃ system is greater than or equal to -3 mo ear % and less than or equal to 5 mole %.

A thirty-ninth aspect A39 includes the glass composition according to the thirty-eighth aspect A38, wherein the R ₂ O—Al ₂ O ₃ system is greater than or equal to −1 mol% and less than or equal to 3 mol%.

A fortieth aspect A40 includes the glass composition according to the thirty-seventh to thirty-ninth aspects A37-A39, wherein the glass composition contains Au of 0.0001 mol% or more and 0.1 mol% or less .

A forty-first aspect A41 includes the glass composition according to any one of the thirty-seventh to fortieth aspects A37-A40, wherein R ₂ O is greater than or equal to 6 mol % and less than or equal to 25 Mole %.

A forty-second aspect A42 includes the glass composition according to the forty-first aspect A41, wherein R ₂ O is greater than or equal to 8 mol% and less than or equal to 23 mol%.

The forty-third aspect A43 includes the glass composition according to any one of the thirty-seventh to forty-second aspects A37-A42, wherein the glass composition contains 0.01 mol% or more and less than or equal to 2 mol% ZrO ₂ .

A forty-fourth aspect A44 includes the glass composition of the forty-third aspect A43, wherein the glass composition includes ZrO ₂ greater than or equal to 0.1 mol % and less than or equal to 1.5 mol %.

The forty-fifth aspect A45 includes the glass composition of any one of the thirty-seventh to forty-fourth aspects A37-A44, wherein the glass composition contains greater than or equal to 0.01 mol % and less than or equal to 1 Mole % Fe ₂ O ₃ .

A forty-sixth aspect A46 includes the glass composition according to the forty-fifth aspect A45, wherein the glass composition includes 0.05 mol% or more and 0.5 mol% or less of _{Fe2O3 .}

A forty-seventh aspect A47 includes the glass composition according to any one of the thirty-seventh to forty-sixth aspects A37-A46, wherein 5.72*Al ₂ O ₃ (mole %)-21.4*ZnO ( Mole %)-2.5*P ₂ O ₅ (Mole %)-35*Li ₂ O (Mole %)-16.6*B ₂ O ₃ (Mole %)-20.5*MgO (Mole %)-23.3 *Na ₂ O (mol %)-27.9*SrO (mol %)-18.5*K ₂ O (mol %)-26.3*CaO (mol %) is greater than -609 mol %.

A forty-eighth aspect A48 includes the glass composition according to any one of the thirty-seventh to forty-seventh aspects A37-A47, wherein the glass composition contains 0.01 mol% or more and less than or equal to 1 mol% SnO ₂ .

A forty-ninth aspect A49 includes the glass composition according to the forty-eighth aspect A48, wherein the glass composition contains SnO ₂ greater than or equal to 0.05 mol % and less than or equal to 0.75 mol %.

The fiftieth aspect A50 includes the glass composition according to any one of the thirty-seventh to forty-ninth aspects A37-A49, wherein the glass composition does not substantially contain MgO, CaO, ZnO, Cl, or combination.

The fifty-first aspect A51 includes the glass composition according to any one of the thirty-seventh to fiftieth aspects A37-A50, wherein the glass composition contains 7 mol% or more and 18 or less Mole % Li ₂ O.

A fifty-second aspect A52 includes the glass composition according to the fifty-first aspect A51, wherein the glass composition contains Li ₂ O in an amount greater than or equal to 9 mol % and less than or equal to 16 mol %.

The fifty-third aspect A53 includes the glass composition according to any one of the thirty-seventh to fifty-second aspects A37-A52, wherein the glass composition contains 1 mol% or more and less than or equal to 12 mol% _Na2O .

A fifty-fourth aspect A54 includes the glass composition according to the fifty-third aspect A53, wherein the glass composition contains _Na2O greater than or equal to 2 mol % and less than or equal to 10 mol %.

The fifty-fifth aspect A55 includes the glass composition according to any one of the thirty-seventh to fifty-fourth aspects A37-A54, wherein the glass composition contains 0.1 mol% or more and less than or equal to 0.5 mol% K ₂ O.

The fifty-sixth aspect A56 includes the glass composition according to any one of the thirty-seventh to fifty-fifth aspects A37-A55, wherein the glass composition contains 9 mol% or more and less than or equal to 23 mol% Al ₂ O ₃ .

A fifty-seventh aspect A57 includes the glass composition according to the fifty-sixth aspect A56, wherein the glass composition contains Al ₂ O ₃ greater than or equal to 11 mol % and less than or equal to 20 mol %.

The fifty-eighth aspect A58 includes the glass composition according to any one of the thirty-seventh to fifty-seventh aspects A37-A57, wherein the glass composition contains 2 mol% or more and less than or equal to 12 mol% B ₂ O ₃ .

The fifty-ninth aspect A59 includes the glass composition according to the fifty-eighth aspect A58, wherein the glass composition contains B ₂ O ₃ greater than or equal to 3 mol % and less than or equal to 10 mol %.

A sixtieth aspect A60 includes the glass composition according to any one of the thirty-seventh to fifty-ninth aspects A37-A59, wherein the glass composition contains 52 mole % or more and 75 mole or less Mole % SiO ₂ .

According to the sixty-first aspect A61, the method of forming a colored glass product may include the step of: performing thermal processing on a glass composition to form a glass product, the glass composition comprising: greater than or equal to 50 mole % and less than or equal to 80 mol % SiO ₂ ; greater than or equal to 7 mol % and less than or equal to 25 mol % Al ₂ O ₃ ; greater than or equal to 1 mol % and less than or equal to 15 mol % B ₂ O ₃ ; Greater than or equal to 5 mol% and less than or equal to 20 mol% of Li ₂ O; greater than or equal to 0.5 mol% and less than or equal to 15 mol% of Na ₂ O; greater than 0 mol% and less K ₂ O equal to or equal to 1 mol %; and Au greater than or equal to 1×10 ^-6 mol % and less than or equal to 1 mol %, wherein: R ₂ O-Al ₂ O ₃ is greater than or equal to -5 mol% and less than or equal to 7 mol%, R ₂ O is the sum of Li ₂ O, Na ₂ O, and K ₂ O; and at greater than or equal to 500°C and less than or equal to 800°C The glass article is subjected to a thermal processing cycle at a temperature and a duration of greater than or equal to 0.25 hours and less than or equal to 24 hours to produce a colored glass article.

According to the second sixty-first aspect A61.1, the method of forming a colored glass article may include the step of: performing thermal processing on a glass composition to form a glass article, the glass composition comprising: greater than or equal to 50 mole % and less than or equal to 80 mole % of SiO ₂ ; greater than or equal to 7 mole % and less than or equal to 25 mole % of Al ₂ O ₃ ; greater than or equal to 1 mole % and less than or equal to 15 mole % % of B ₂ O ₃ ; greater than or equal to 7 mol % and less than or equal to 20 mol % of Li ₂ O; greater than or equal to 0.5 mol % and less than or equal to 12 mol % of Na ₂ O; greater than 0 mol% and less than or equal to 1 mol% of K ₂ O; and greater than or equal to 1×10 ⁻⁶ mol% and less than or equal to 1 mol% of Au, wherein: R ₂ O—Al ₂ O ₃ is greater than or equal to -5 mol% and less than or equal to 5 mol%, R ₂ O is the sum of Li ₂ O, Na ₂ O, and K ₂ O; and at greater than or equal to 500°C and less The glass article is subjected to a thermal processing cycle at a temperature of or equal to 800° C. and a duration of greater than or equal to 0.25 hour and less than or equal to 24 hours to produce a colored glass article.

The sixty-second aspect A62 includes the method according to the sixty-first aspect A61 or the second sixty-first aspect A61.1, wherein the temperature of the thermal processing cycle is greater than or equal to 550° C. and less than or equal to 775° C. ℃.

A sixty-third aspect A63 includes the method according to any one of the sixty-first to sixty-second aspects A61-A62, wherein the duration of the thermal processing cycle is greater than or equal to 0.5 hour and less than or equal to 16 Hour.

The sixty-fourth aspect A64 includes the method according to any one of the sixty-first to sixty-third aspects A61-A63, further comprising the step of: at a temperature greater than or equal to 350°C to less than or equal to 500°C The colored glass article is strengthened in the ion exchange bath for a period of time greater than or equal to 2 hours to less than or equal to 12 hours to form an ion-exchanged glass-ceramic article.

The sixty-fifth aspect A65 includes the method according to the sixty-fourth aspect A64, wherein the ion exchange bath comprises _KNO3 .

Sixty-sixth aspect A66 includes the method according to sixty-fifth aspect A65, wherein the ion exchange bath comprises _NaNO3 .

Additional features and advantages of the colored glass articles described herein will be set forth in the detailed description that follows, and those of ordinary skill in the art will be able to understand the additional features and advantages in part from the description, or by practicing the colored glass products herein (including Additional features and advantages are apparent from the embodiments described in the following detailed description, claims, and accompanying drawings).

It is to be understood that both the foregoing general description and the following detailed description describe various embodiments, and are intended to provide an overview or framework for understanding the nature and character of what is claimed. The accompanying drawings are included to provide a further understanding of the various embodiments, and are incorporated in and constitute a part of this specification. The drawings illustrate the various embodiments described herein, and together with the description serve to explain the principles and operations of the claimed subject matter.

Reference will now be made in detail to various embodiments of glass compositions and resulting colored glass articles having desired colors. According to an embodiment, the colored glass article includes: greater than or equal to 50 mol % and less than or equal to 80 mol % of SiO ₂ ; greater than or equal to 7 mol % and less than or equal to 25 mol % of Al ₂ O ₃ ; greater than or equal to 1 mol% and less than or equal _to 15 mol% of _B2O3 ; greater than or equal to 5 mol% and less than or equal to 20 mol% of _Li2O ; greater than or equal to 0.5 mol% % and less than or equal to 15 mol% of Na ₂ O; greater than 0 mol% and less than or equal to 1 mol% of K ₂ O; and greater than or equal to 1×10 ^-6 mol% and less than or Equivalent to 1 mol% Au. R ₂ O-Al ₂ O ₃ is greater than or equal to -5 mol% and less than or equal to 7 mol%, and R ₂ O is the sum of Li ₂ O, Na ₂ O, and K ₂ O. According to an embodiment, the colored glass article includes: greater than or equal to 50 mol % and less than or equal to 80 mol % of SiO ₂ ; greater than or equal to 7 mol % and less than or equal to 25 mol % of Al ₂ O ₃ ; greater than or equal to 1 mol% and less than or equal _to 15 mol% of _B2O3 ; greater than or equal to 7 mol% and less than or equal to 20 mol% of _Li2O ; greater than or equal to 0.5 mol% % and less than or equal to 12 mol% of Na ₂ O; greater than 0 mol% and less than or equal to 1 mol% of K ₂ O; and greater than or equal to 1×10 ^-6 mol% and less than or Equivalent to 1 mol% Au. R ₂ O-Al ₂ O ₃ is greater than or equal to -5 mol% and less than or equal to 5 mol%, and R ₂ O is the sum of Li ₂ O, Na ₂ O, and K ₂ O.

Various embodiments of colored glass articles and methods of making the same will be described herein with specific reference to the accompanying drawings.

Ranges expressed herein can be from "about" one particular value, and/or to "about" another particular value. When such a range is expressed, another embodiment includes from the one particular value and/or to the other particular value. Likewise, when values are expressed in approximations, using the preposition "about," it will be understood that the particular value forms another embodiment. It can further be appreciated that each endpoint of a range is distinctly related to, and independent of, the other endpoint.

Directional terms (eg, up, down, right, left, front, rear, top, bottom) as used herein are for illustration only with respect to the drawings and are not intended to imply absolute orientations.

Unless expressly stated otherwise, any method described herein is not to be construed as having to be constructed to perform its steps in a particular order, nor does it require a particular orientation of any device. Thus, where a method claim does not actually recite the order of its steps, or any apparatus claim does not actually recite the order or orientation of individual components, or does not specify in the claim or narration that the steps are limited to a particular order, or does not Where a specific order or orientation of parts of a device is recited, in no respect is this order or orientation to be inferred in any way. This applies to any possible non-expressive basis for illustration, including: logical subject matter for arrangement of steps, operational flow, sequence of parts, or orientation of parts; general meaning derived from grammatical organization or punctuation; and Number or type of examples.

As used herein, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to "a" element includes aspects having two or more elements unless the context clearly dictates otherwise.

In the examples of the glass compositions and resulting colored glass articles described herein, the concentrations of the constituents in the form of oxides (e.g., SiO ₂ , Al ₂ O ₃ , and the like) are present unless otherwise indicated. It is specified in mole percent (mole %) on an oxide basis.

In the examples of the glass compositions and resulting colored glass articles described herein, the concentrations of Au and Cl are indicated in molar percentages (mol%) unless otherwise indicated.

When used to describe the concentration and/or absence of a particular constituent in the glass composition and resulting colored glass article, the term "substantially free" means that no constituent is intentionally added to the glass composition and the resulting colored glass article. In the obtained colored glass products. However, the glass composition and the resulting colored glass article may contain constituent components in amounts less than 0.1 mol % as contaminants or residues.

When used to describe the concentration and/or absence of a particular constituent in the glass composition and the resulting colored glass article, the terms "0 mole percent" and "free of charge" mean that the constituent is not present in the composition With the resulting colored glass products.

Fracture toughness (K _1C ) indicates the ability of a glass composition to resist fracture. Fracture toughness is measured on unstrengthened glass articles (eg, measuring K _1C values prior to ion exchange (IOX) processing of the glass article), thereby characterizing the pre-IOX glass substrate. The fracture toughness test methods described herein are not applicable to glass that has been exposed to 10× processing. However, fracture toughness measurements made on the same glass (eg, glass substrate) prior to 10X processing as described herein are correlated to fracture toughness after 10X processing, and are used accordingly. The mountain notched short stem (CNSB) method for measuring K _1C values is described by Reddy, KPR et al. in J. Am. Ceram. Soc., 71 [6], C-310-C-313 (1988) "Fracture Toughness Measurement of Glass and Ceramic Materials Using Chevron-Notched Specimens", the difference is that "Closed-Form Expressions" by Bubsey, RT et al. in NASA Technical Memorandum 83796, pp. 1-30 (October 1992) for Crack-Mouth Displacement and Stress Intensity Factors for Chevron-Notched Short Bar and Short Rod Specimens Based on Experimental Compliance Measurements" to calculate Y*m. Unless otherwise stated, all fracture toughness values are measured by the Cablen Notch Short Bar (CNSB) method.

The term "liquidus viscosity" as used herein refers to the viscosity of the glass composition at the onset of devitrification (ie, at the liquidus temperature determined by the gradient furnace method according to ASTM C829-81).

The surface compressive stress is measured using a surface stress meter (FSM) (for example, a commercially available instrument such as FSM-6000 manufactured by Orihara Industrial Co., Ltd (Japan)). Surface stress measurements depend on the measurement of the stress optic coefficient (SOC), which is related to the birefringence of the glass article. SOC was then measured according to Procedure C (glass dish method) described in ASTM Standard C770-16 entitled "Standard Test Method for Measurement of Glass Stress-Optical Coefficient," the contents of which are incorporated herein by reference in their entirety. Depth of compression (DOC) was also measured using FSM. Maximum central tension (CT) values were measured using the Scattered Light Polarizer (SCALP) technique known in the art.

As used herein, the term "depth of compression" (DOC) refers to the location in an article where compressive stress transforms into tensile stress.

As used herein, the term "CIELAB color space" refers to the color space defined by the International Commission on Illumination (CIE) in 1976. Colors are expressed as three values: L* for black (0) to white (100), a* for green (-) to red (+), and B* for blue (-) to yellow (+).

As used herein, the term "color gamut" refers to the palette of colors that can be achieved by colored glazing within the CIELAB color space.

As used herein, "optical transmission spectrum" is obtained using an Agilent Cary 60 spectrophotometer with a scan range of 250nm to 800nm, a scan step of 2nm, a signal average of 0.5s, and a spot size of 2mm. The light transmission data obtained were used to plot coordinates in the CIELAB color space as described in R.S. Berns, Billmeyer and Saltzman's Principles of Color Technology, 3rd. Ed., John Wiley & Sons, New York (2000).

Colorants are added to conventional aluminosilicate glass compositions to achieve colored glass articles with desired colors and improved mechanical properties. For example, gold (Au) doped glass products usually appear red, orange, or purple. However, simply including a colorant in an aluminosilicate glass composition may not produce the desired color.

Glass compositions and colored glass articles formed therefrom that alleviate the above-mentioned problems are disclosed herein, such that Au can be added to aluminosilicate glass compositions to produce colored glass articles with desired colors while maintaining excellent ion exchange. and drop performance. Specifically, the concentration of certain constituents can be adjusted to achieve the desired color and prevent the precipitation of Au particles in the glass network.

The glass compositions and colored glass articles described herein may be described as aluminoborosilicate glass compositions and colored glass articles, and include SiO ₂ , Al ₂ O ₃ , and B ₂ O ₃ . The glass compositions and colored glass articles described herein include Au in addition to _SiO2 , _Al2O3 , and _B2O3 to produce _colored glass articles having a desired color _. The glass compositions and colored glass products described herein also include alkali metal oxides (eg, Li ₂ O and Na ₂ O) to achieve ion exchange properties of the colored glass products. In addition, the difference between R ₂ O and Al ₂ O ₃ (that is, R ₂ O (mole %)-Al ₂ O ₃ ( mol%)) to produce the desired observable color (eg, pink, purple, red, or orange). In addition, the viscosity of the glass composition can be adjusted to prevent devitrification of the glass composition and precipitation of Au particles during melting and formation that may limit the achievable color gamut.

The _SiO2 system is the primary glass former in the glass compositions described herein and can be used to stabilize the network structure of colored glass articles. The concentration of _SiO2 in the glass composition and resulting colored glass article should be sufficiently high (e.g., greater than or equal to 50 mole percent) to enhance the chemical durability of the glass composition (more specifically against exposure to acidic solutions, Alkaline solutions, and resistance to degraded glass compositions in water). Since the melting point of pure SiO ₂ or high SiO ₂ glass is too high, the amount of SiO ₂ can be limited (for example, less than or equal to 80 mol%) to control the melting point of the glass composition. Therefore, limiting the concentration of _SiO2 can help to improve the meltability and formability of the resulting colored glass articles.

In an embodiment, the glass composition and the resulting colored glass article may contain SiO ₂ greater than or equal to 50 mol % and less than or equal to 80 mol %. In an embodiment, the glass composition and the resulting colored glass article may contain SiO ₂ greater than or equal to 52 mol % and less than or equal to 75 mol %. In an embodiment, the concentration of _SiO in the glass composition and the resulting colored glass product may be greater than or equal to 50 mol%, greater than or equal to 52 mol%, greater than or equal to 54 mol%, greater than or equal to 56 mol%. Mole%, greater than or equal to 58 mole%, or even greater than or equal to 60 mole%. In an embodiment, the glass composition and the resulting colored glass product may have a _SiO concentration of less than or equal to 80 mol%, less than or equal to 75 mol%, less than or equal to 73 mol%, less than or equal to Less than or equal to 71 mole %, or even less than or equal to 69 mole %. In an embodiment, the concentration of _SiO in the glass composition and the resulting colored glass product may be greater than or equal to 50 mol % and less than or equal to 80 mol %, greater than or equal to 50 mol % and less than or equal to Equal to 75 mol%, greater than or equal to 50 mol% and less than or equal to 73 mol%, greater than or equal to 50 mol% and less than or equal to 71 mol%, greater than or equal to 50 mol% and less than Or equal to 69 mol%, greater than or equal to 52 mol% and less than or equal to 80 mol%, greater than or equal to 52 mol% and less than or equal to 75 mol%, greater than or equal to 52 mol% and less 73 mol% or more, 52 mol% or more and 71 mol% or less, 52 mol% or more and 69 mol% or less, 54 mol% or more and Less than or equal to 80 mol%, greater than or equal to 54 mol% and less than or equal to 75 mol%, greater than or equal to 54 mol% and less than or equal to 73 mol%, greater than or equal to 54 mol% And less than or equal to 71 mol%, greater than or equal to 54 mol% and less than or equal to 69 mol%, greater than or equal to 56 mol% and less than or equal to 80 mol%, greater than or equal to 56 mol% % and less than or equal to 75 mol%, greater than or equal to 56 mol% and less than or equal to 73 mol%, greater than or equal to 56 mol% and less than or equal to 71 mol%, greater than or equal to 56 mol% Mole% and less than or equal to 69 mole%, greater than or equal to 58 mole% and less than or equal to 80 mole%, greater than or equal to 58 mole% and less than or equal to 75 mole%, greater than or equal to 58 Mole% and less than or equal to 73 mole%, greater than or equal to 58 mole% and less than or equal to 71 mole%, greater than or equal to 58 mole% and less than or equal to 69 mole%, greater than or equal to 50 mol% and less than or equal to 80 mol%, greater than or equal to 60 mol% and less than or equal to 75 mol%, greater than or equal to 60 mol% and less than or equal to 73 mol%, greater than or equal to Equal to 60 molar % and less than or equal to 71 molar %, or even greater than or equal to 60 molar % and less than or equal to 69 molar %, or any and all subunits formed by any of these endpoints scope.

Like _SiO2 , _Al2O3 can also stabilize the glass network and additionally provide improved mechanical properties and chemical durability for the glass composition and _resulting colored glass articles. The amount of Al ₂ O ₃ can also be adjusted to control the viscosity of the glass composition. Al ₂ O ₃ may be included so that the obtained glass composition has desired fracture toughness (for example, greater than or equal to 0.7 MPa·m ^1/2 ). However, if the amount of Al ₂ O ₃ is too high (eg, greater than 25 mole %), the viscosity of the glass melt may increase, reducing the formability of colored glass articles.

Therefore, in an embodiment, the glass composition and the resulting colored glass article may contain Al ₂ O ₃ greater than or equal to 7 mol % and less than or equal to 25 mol %. In an embodiment, the glass composition and the resulting colored glass article may contain Al ₂ O ₃ greater than or equal to 9 mol % and less than or equal to 23 mol %. In an embodiment, the glass composition and the resulting colored glass product may contain Al ₂ O ₃ greater than or equal to 11 mol % and less than or equal to 20 mol %. In an embodiment, the concentration of Al ₂ O ₃ in the glass composition and the resulting colored glass product may be greater than or equal to 7 mol%, greater than or equal to 9 mol%, greater than or equal to 11 mol%, or even Greater than or equal to 13 mole %. In an embodiment, the concentration of Al ₂ O ₃ in the glass composition and the resulting colored glass product may be less than or equal to 25 mol%, less than or equal to 23 mol%, less than or equal to 20 mol% , or even less than or equal to 17 mol%. In an embodiment, the concentration of Al ₂ O ₃ in the glass composition and the resulting colored glass product may be greater than or equal to 7 mol% and less than or equal to 25 mol%, greater than or equal to 7 mol% and less 23 mol% or more, 7 mol% or more and 20 mol% or less, 7 mol% or more and 17 mol% or less, 9 mol% or more and Less than or equal to 25 mol%, greater than or equal to 9 mol% and less than or equal to 23 mol%, greater than or equal to 9 mol% and less than or equal to 20 mol%, greater than or equal to 9 mol% And less than or equal to 17 mol%, greater than or equal to 11 mol% and less than or equal to 25 mol%, greater than or equal to 11 mol% and less than or equal to 23 mol%, greater than or equal to 11 mol% % and less than or equal to 20 mol%, greater than or equal to 11 mol% and less than or equal to 17 mol%, greater than or equal to 13 mol% and less than or equal to 25 mol%, greater than or equal to 13 mol% Mole % and less than or equal to 23 mole %, greater than or equal to 13 mole % and less than or equal to 20 mole %, greater than or equal to 13 mole % and less than or equal to 17 mole %, or these endpoints Any and all subranges formed by any of them.

B ₂ O ₃ helps to improve the damage resistance of the resulting colored glass articles. In addition, _B2O3 reduces the formation of non-bridging oxygen, whose _presence may reduce fracture toughness. The _B2O3 concentration should be sufficiently high (eg, greater than or equal to 1 mole %) to lower the melting point of the glass composition, improve formability, and increase the fracture toughness of _the colored glass article. However, if the B ₂ O ₃ is too high (eg, greater than 15 mole %), the annealing point and strain point may decrease, increasing stress relaxation and reducing the overall strength of the colored glass article.

In an embodiment, the glass composition and the resulting colored glass product may contain B ₂ O ₃ greater than or equal to 1 mol % and less than or equal to 15 mol %. In an embodiment, the glass composition and the resulting colored glass article may contain B ₂ O ₃ greater than or equal to 2 mol % and less than or equal to 12 mol %. In an embodiment, the glass composition and the resulting colored glass product may contain B ₂ O ₃ greater than or equal to 3 mol % and less than or equal to 10 mol %. In an embodiment, the concentration of _B2O3 in the glass composition and the resulting colored glass article may be greater than or equal to 1 mol%, _greater than or equal to 2 mol%, greater than or equal to 3 mol%, or even Greater than or equal to 4 mole %. In an embodiment, the concentration of B ₂ O ₃ in the glass composition and the resulting colored glass product may be less than or equal to 15 mol%, less than or equal to 12 mol%, less than or equal to 10 mol% , less than or equal to 8 mole%, or even less than or equal to 6 mole%. In an embodiment, the concentration of _B2O3 in the glass composition and the resulting colored glass product may be greater than or equal to 1 mol % and _less than or equal to 15 mol %, greater than or equal to 1 mol % and less 12 mol% or more, 1 mol% or more and 10 mol% or less, 1 mol% or more and 8 mol% or less, 1 mol% or more and Less than or equal to 6 mol%, greater than or equal to 2 mol% and less than or equal to 15 mol%, greater than or equal to 2 mol% and less than or equal to 12 mol%, greater than or equal to 2 mol% And less than or equal to 10 mol%, greater than or equal to 2 mol% and less than or equal to 8 mol%, greater than or equal to 2 mol% and less than or equal to 6 mol%, greater than or equal to 3 mol% % and less than or equal to 15 mol%, greater than or equal to 3 mol% and less than or equal to 12 mol%, greater than or equal to 3 mol% and less than or equal to 10 mol%, greater than or equal to 3 mol% mol% and less than or equal to 8 mol%, greater than or equal to 3 mol% and less than or equal to 6 mol%, greater than or equal to 4 mol% and less than or equal to 15 mol%, greater than or equal to 4 Mole % and less than or equal to 12 mole %, greater than or equal to 4 mole % and less than or equal to 10 mole %, greater than or equal to 4 mole % and less than or equal to 8 mole %, or even greater than or equal to 4 molar % and less than or equal to 6 molar %, or any and all subranges formed by any of these endpoints.

As mentioned above, the glass composition and the resulting colored glass product may contain alkali metal oxides (eg, Li ₂ O, Na ₂ O, and K ₂ O) to achieve ion exchange properties of the colored glass product.

Li ₂ O contributes to the ion exchangeability of the colored glass, and also lowers the softening point of the glass composition, thereby increasing the formability of the colored glass. In addition, Li ₂ O lowers the melting point of the glass composition, which may help improve Au retention. The _Li2O concentration in the glass composition and resulting colored glass article should be sufficiently high (eg, greater than or equal to 5 mole %) to lower the melting point of the glass composition and achieve the desired maximum center concentration after ion exchange. Tension (for example, greater than or equal to 40MPa). However, if the amount of _Li2O is too high (eg, greater than 20 mole %), the liquidus temperature may increase, reducing the manufacturability of colored glass articles.

In an embodiment, the glass composition and the resulting colored glass product may contain _Li2O greater than or equal to 5 mol % and less than or equal to 20 mol %, or greater than or equal to 7 mol % and less than Or equal to 20 mol% _Li2O . In an embodiment, the glass composition and the resulting colored glass article may contain Li ₂ O greater than or equal to 7 mol % and less than or equal to 18 mol %. In an embodiment, the glass composition and the resulting colored glass article may contain Li ₂ O greater than or equal to 9 mol % and less than or equal to 16 mol %. In embodiments, the concentration of Li ₂ O in the glass composition and the resulting colored glass article may be greater than or equal to 5 mol%, greater than or equal to 7 mol%, or even greater than or equal to 9 mol%. In an embodiment, the concentration of _Li2O in the glass composition and the obtained colored glass product may be less than or equal to 20 mol%, less than or equal to 18 mol%, less than or equal to 16 mol%, Less than or equal to 14 mol%, or even less than or equal to 12 mol%. In an embodiment, the concentration of Li ₂ O in the glass composition and the obtained colored glass product may be greater than or equal to 5 mol % and less than or equal to 20 mol %, greater than or equal to 5 mol % and less than Or equal to 18 mol%, greater than or equal to 5 mol% and less than or equal to 16 mol%, greater than or equal to 5 mol% and less than or equal to 14 mol%, greater than or equal to 5 mol% and less 12 mol% or more, 7 mol% or more and 20 mol% or less, 7 mol% or more and 18 mol% or less, 7 mol% or more and Less than or equal to 16 mol%, greater than or equal to 7 mol% and less than or equal to 14 mol%, greater than or equal to 7 mol% and less than or equal to 12 mol%, greater than or equal to 9 mol% And less than or equal to 20 mol%, greater than or equal to 9 mol% and less than or equal to 18 mol%, greater than or equal to 9 mol% and less than or equal to 16 mol%, greater than or equal to 9 mol% % and less than or equal to 14 molar %, or even greater than or equal to 9 molar % and less than or equal to 12 molar %, or any and all subranges formed by any of these endpoints.

Na ₂ O improves the diffusivity of alkali metal ions in the glass, thereby reducing ion exchange time, and contributes to achieving a desired surface compressive stress (for example, greater than or equal to 300 MPa). _Na2O also improves the formability of colored glass articles. However, if too much Na ₂ O is added to the glass composition, the melting point may be too low. Therefore, in an embodiment, the concentration of Li ₂ O present in the glass composition and the obtained colored glass article may be greater than the concentration of Na ₂ O present in the glass composition and the obtained colored glass article.

In an embodiment, the glass composition and the resulting colored glass product may contain Na ₂ O greater than or equal to 0.5 mol % and less than or equal to 15 mol %, or greater than or equal to 0.5 mol % and less than Or equal to 12 mol% _Na2O . In an embodiment, the glass composition and the resulting colored glass article may contain Na ₂ O greater than or equal to 1 mol % and less than or equal to 12 mol %. In an embodiment, the glass composition and the resulting colored glass article may contain Na ₂ O greater than or equal to 2 mol % and less than or equal to 10 mol %. In an embodiment, the concentration of Na ₂ O in the glass composition and the obtained colored glass product may be greater than or equal to 0.5 mol%, greater than or equal to 1 mol%, greater than or equal to 2 mol%, greater than or equal to 3 mol%, or even greater than or equal to 4 mol%. In an embodiment, the concentration of Na ₂ O in the glass composition and the resulting colored glass product may be less than or equal to 15 mol%, less than or equal to 12 mol%, less than or equal to 10 mol%, Less than or equal to 8 mole %, or even less than or equal to 6 mole %. In an embodiment, the concentration of Na ₂ O in the glass composition and the obtained colored glass product may be greater than or equal to 0.5 mol % and less than or equal to 15 mol %, greater than or equal to 0.5 mol % and less than Or equal to 12 mol%, greater than or equal to 0.5 mol% and less than or equal to 10 mol%, greater than or equal to 0.5 mol% and less than or equal to 8 mol%, greater than or equal to 0.5 mol% and less 6 mol% or more, 1 mol% or more and 15 mol% or less, 1 mol% or more and 12 mol% or less, 1 mol% or more and Less than or equal to 10 mol%, greater than or equal to 1 mol% and less than or equal to 8 mol%, greater than or equal to 1 mol% and less than or equal to 6 mol%, greater than or equal to 2 mol% And less than or equal to 15 mol%, greater than or equal to 2 mol% and less than or equal to 12 mol%, greater than or equal to 2 mol% and less than or equal to 10 mol%, greater than or equal to 2 mol% % and less than or equal to 8 mol%, greater than or equal to 2 mol% and less than or equal to 6 mol%, greater than or equal to 3 mol% and less than or equal to 15 mol%, greater than or equal to 3 mol% mol% and less than or equal to 12 mol%, greater than or equal to 3 mol% and less than or equal to 10 mol%, greater than or equal to 3 mol% and less than or equal to 8 mol%, greater than or equal to 3 mol% and less than or equal to 6 mol%, greater than or equal to 4 mol% and less than or equal to 15 mol%, greater than or equal to 4 mol% and less than or equal to 12 mol%, greater than or equal to 4 mol% and less than or equal to 10 mol%, greater than or equal to 4 mol% and less than or equal to 8 mol%, or even greater than or equal to 4 mol% and less than or equal to 6 mol%, or any and all subranges formed by any of these endpoints.

K ₂ O promotes ion exchange and can increase the depth of compression and lower the melting point to improve the formability of colored glass products. However, adding too much K ₂ O may cause surface compressive stress and low melting point. Therefore, in an embodiment, the amount of K ₂ O added to the glass composition may be limited.

In an embodiment, the glass composition and the resulting colored glass article may contain K ₂ O greater than 0 mol % and less than or equal to 1 mol %. In embodiments, the glass composition and the resulting colored glass article may optionally contain greater than 0.1 mol % and less than or equal to 0.5 mol % K ₂ O. In an embodiment, the concentration of K ₂ O in the glass composition and the obtained colored glass product may be greater than 0 mol%, or even greater than or equal to 0.1 mol%. In embodiments, the concentration of _K2O in the glass composition and the resulting colored glass article may be less than or equal to 1 molar percent, less than or equal to 0.5 molar percent, or even less than or equal to 0.25 molar percent %. In an embodiment, the concentration of K ₂ O in the glass composition and the resulting colored glass product may be greater than 0 mol% and less than or equal to 1 mol%, greater than 0 mol% and less than or equal to 0.5 mol%. Mole%, greater than 0 mole% and less than or equal to 0.25 mole%, greater than or equal to 0.1 mole% and less than or equal to 1 mole%, greater than or equal to 0.1 mole% and less than or equal to 0.5 mole% %, or even greater than or equal to 0.1 mol % and less than or equal to 0.25 mol %, or any and all subranges formed by any of these endpoints.

As used herein, R ₂ O is the sum (in mole %) of Na ₂ O, K ₂ O, and Li ₂ O present in the glass composition (that is, R ₂ O=Na ₂ O( Mole %) + K ₂ O (mole %) + Li ₂ O (mole %)). As described herein, alkali metal oxides (e.g., Na ₂ O, K ₂ O, and Li ₂ O) help lower the softening point and forming temperature of the glass composition, thereby offsetting, for example, the higher The softening point and molding temperature of the glass composition caused by the amount of SiO ₂ increase. The reduction in softening point and forming temperature can be further reduced by including a combination of alkali metal oxides (eg, two or more alkali metal oxides) in the glass composition, a phenomenon referred to as the "mixed alkali effect." However, it has been found that if the amount of alkali metal oxide is too high, the average coefficient of thermal expansion of the glass composition increases to greater than 100 x 10 ^-7 /°C, which may be undesirable.

In an embodiment, the concentration of R ₂ O in the glass composition and the obtained colored glass product may be greater than or equal to 6 mol% and less than or equal to 25 mol%. In an embodiment, the concentration of R ₂ O in the glass composition and the obtained colored glass product may be greater than or equal to 8 mol% and less than or equal to 23 mol%. In an embodiment, the concentration of R ₂ O in the glass composition and the obtained colored glass product may be greater than or equal to 6 mol%, greater than or equal to 8 mol%, greater than or equal to 10 mol%, greater than or equal to 12 mol%. mol%, or even greater than or equal to 14 mol%. In an embodiment, the concentration of R ₂ O in the glass composition and the resulting colored glass product may be less than or equal to 25 mol%, less than or equal to 23 mol%, less than or equal to 20 mol%, Or even less than or equal to 18 mole %. In an embodiment, the concentration of R ₂ O in the glass composition and the obtained colored glass product may be greater than or equal to 6 mol % and less than or equal to 25 mol %, greater than or equal to 6 mol % and less than Or equal to 23 mol%, greater than or equal to 6 mol% and less than or equal to 20 mol%, greater than or equal to 6 mol% and less than or equal to 18 mol%, greater than or equal to 8 mol% and less 25 mol% or more, 8 mol% or more and 23 mol% or less, 8 mol% or more and 20 mol% or less, 8 mol% or more and Less than or equal to 18 mol%, greater than or equal to 10 mol% and less than or equal to 25 mol%, greater than or equal to 10 mol% and less than or equal to 23 mol%, greater than or equal to 10 mol% And less than or equal to 20 mol%, greater than or equal to 10 mol% and less than or equal to 18 mol%, greater than or equal to 12 mol% and less than or equal to 25 mol%, greater than or equal to 12 mol% % and less than or equal to 23 mol%, greater than or equal to 12 mol% and less than or equal to 20 mol%, greater than or equal to 12 mol% and less than or equal to 18 mol%, greater than or equal to 14 mol% mol% and less than or equal to 25 mol%, greater than or equal to 14 mol% and less than or equal to 23 mol%, greater than or equal to 14 mol% and less than or equal to 20 mol%, or even greater than or Equal to 14 molar % and less than or equal to 18 molar %, or any and all subranges formed by any of these endpoints.

In an embodiment, the difference between R ₂ O and Al ₂ O ₃ in the glass composition (ie, R ₂ O (mole %)-Al ₂ O ₃ (mole %)) can be adjusted to produce Desired observable color (eg, pink, purple, red, or orange). As discussed herein, as a function of temperature and time of thermal processing, the analyzed R ₂ O—Al ₂ O ₃ of the resulting colored glass article may correlate with the observable color of the colored glass article after thermal processing. In an embodiment, the R ₂ O—Al ₂ O ₃ in the glass composition and the obtained colored glass product may be greater than or equal to -5 mol% and less than or equal to 7 mol%, or greater than or equal to -5 mol%. Mole % and less than or equal to 5 Mole %. In an embodiment, R ₂ O—Al ₂ O ₃ in the glass composition and the obtained colored glass product may be greater than or equal to -3 mol% and less than or equal to 6 mol%. In an embodiment, R ₂ O—Al ₂ O ₃ in the glass composition and the obtained colored glass product may be greater than or equal to -1 mol% and less than or equal to 5 mol%. In an embodiment, R ₂ O—Al ₂ O ₃ in the glass composition and the obtained colored glass product may be greater than or equal to -5 mol% and less than or equal to 1.5 mol%. In an embodiment, R ₂ O—Al ₂ O ₃ in the glass composition and the obtained colored glass product may be greater than or equal to -3 mol% and less than or equal to 1.5 mol%. In an embodiment, R ₂ O—Al ₂ O ₃ in the glass composition and the obtained colored glass product may be greater than or equal to 1.5 mol% and less than or equal to 7 mol%. In an embodiment, R ₂ O—Al ₂ O ₃ in the glass composition and the obtained colored glass product may be greater than or equal to 1.5 mol% and less than or equal to 5 mol%. In an embodiment, the R ₂ O-Al ₂ O ₃ in the glass composition and the obtained colored glass product may be greater than or equal to -5 mol%, greater than or equal to -3, greater than or equal to -1 mol%, Greater than or equal to 0 mole %, or even greater than or equal to 1.5. In an embodiment, the R ₂ O-Al ₂ O ₃ in the glass composition and the obtained colored glass product may be less than or equal to 7 mol%, less than or equal to 5 mol%, less than or equal to 3 mol%. mol%, or even less than or equal to 1.5 mol%. In an embodiment, the R ₂ O-Al ₂ O ₃ in the glass composition and the obtained colored glass product may be greater than or equal to -5 mol % and less than or equal to 7 mol %, greater than or equal to -5 mol % mol% and less than or equal to 5 mol%, greater than or equal to -5 mol% and less than or equal to 3 mol%, greater than or equal to -5 mol% and less than or equal to 1.5 mol%, greater than or equal to Equal to -3 mol% and less than or equal to 7 mol%, greater than or equal to -3 mol% and less than or equal to 5 mol%, greater than or equal to -3 mol% and less than or equal to 3 mol% %, greater than or equal to -3 mol% and less than or equal to 1.5 mol%, greater than or equal to -1 mol% and less than or equal to 7 mol%, greater than or equal to -1 mol% and less than or Equal to 5 mol%, greater than or equal to -1 mol% and less than or equal to 3 mol%, greater than or equal to -1 mol% and less than or equal to 1.5 mol%, greater than or equal to 0 mol% and Less than or equal to 7 mol%, greater than or equal to 0 mol% and less than or equal to 5 mol%, greater than or equal to 0 mol% and less than or equal to 3 mol%, greater than or equal to 0 mol% and less than or equal to 1.5 mol%, greater than or equal to 1.5 mol% and less than or equal to 7 mol%, greater than or equal to 1.5 mol% and less than or equal to 5 mol%, or even greater than or equal to 1.5 mol% and less than or equal to 3 mol%, or any and all subranges formed by any of these endpoints.

The glass composition described herein and the resulting colored glass product may further contain ZrO ₂ . In addition to Au, _ZrO2 can be used as a colorant to produce colored glassware that can be, for example, red. In an embodiment, the glass composition and the resulting colored glass product may contain ZrO ₂ greater than or equal to 0.01 mol % and less than or equal to 2 mol %. In an embodiment, the glass composition and the resulting colored glass product may contain ZrO ₂ greater than or equal to 0.1 mol % and less than or equal to 1.5 mol %. In embodiments, the concentration of _ZrO2 in the glass composition may be greater than or equal to 0 mol%, greater than or equal to 0.01 mol%, greater than or equal to 0.1 mol%, or even greater than or equal to 0.2 mol%. In an embodiment, the concentration of _ZrO in the glass composition may be less than or equal to 2 mol%, less than or equal to 1.5 mol%, less than or equal to 1 mol%, less than or equal to 0.75 mol% , or even less than or equal to 0.5 mol%. In an embodiment, the concentration of _ZrO in the glass composition may be greater than or equal to 0 mol% and less than or equal to 2 mol%, greater than or equal to 0 mol% and less than or equal to 1.5 mol%, greater than or equal to or equal to 0 mol% and less than or equal to 1 mol%, greater than or equal to 0 mol% and less than or equal to 0.75 mol%, greater than or equal to 0 mol% and less than or equal to 0.5 mol%, Greater than or equal to 0.01 mol% and less than or equal to 2 mol%, greater than or equal to 0.01 mol% and less than or equal to 1.5 mol%, greater than or equal to 0.01 mol% and less than or equal to 1 mol% , greater than or equal to 0.01 mol% and less than or equal to 0.75 mol%, greater than or equal to 0.01 mol% and less than or equal to 0.5 mol%, greater than or equal to 0.1 mol% and less than or equal to 2 mol% %, greater than or equal to 0.1 mol% and less than or equal to 1.5 mol%, greater than or equal to 0.1 mol% and less than or equal to 1 mol%, greater than or equal to 0.1 mol% and less than or equal to 0.75 mol% mol%, greater than or equal to 0.1 mol% and less than or equal to 0.5 mol%, greater than or equal to 0.2 mol% and less than or equal to 2 mol%, greater than or equal to 0.2 mol% and less than or equal to 1.5 mol%, greater than or equal to 0.2 mol% and less than or equal to 1 mol%, greater than or equal to 0.2 mol% and less than or equal to 0.75 mol%, or even greater than or equal to 0.2 mol% and less than or equal to 0.5 mole percent, or any and all subranges formed by any of these endpoints. In an embodiment, the glass composition and the resulting colored glass article may be substantially free or free of ZrO ₂ .

The glass composition described herein and the obtained colored glass product may further contain Fe ₂ O ₃ . In addition to Au _{, Fe2O3} can also be used as a colorant to produce colored glass articles which can be eg pink or red. In an embodiment, the glass composition and the resulting colored glass product may contain Fe ₂ O ₃ greater than or equal to 0.01 mol % and less than or equal to 1 mol %. In an embodiment, the glass composition and the resulting colored glass product may contain Fe ₂ O ₃ greater than or equal to 0.05 mol % and less than or equal to 1 mol %. In embodiments, the concentration of _Fe2O3 in the glass composition may be greater _than or equal to 0 mol%, greater than or equal to 0.01 mol%, or even greater than or equal to 0.05 mol%. In _embodiments , the concentration of _Fe2O3 in the glass composition may be less than or equal to 1 mol%, less than or equal to 0.75 mol%, less than or equal to 0.5 mol%, or even less than or equal to 0.25 mol%. In an embodiment, the concentration of _Fe2O3 in the glass composition may be greater than or equal to 0 mol % and _less than or equal to 1 mol %, greater than or equal to 0 mol % and less than or equal to 0.75 mol % , greater than or equal to 0 mol% and less than or equal to 0.5 mol%, greater than or equal to 0 mol% and less than or equal to 0.25 mol%, greater than or equal to 0.01 mol% and less than or equal to 1 mol% %, greater than or equal to 0.01 mol% and less than or equal to 0.75 mol%, greater than or equal to 0.01 mol% and less than or equal to 0.5 mol%, greater than or equal to 0.01 mol% and less than or equal to 0.25 mol% mol%, greater than or equal to 0.05 mol% and less than or equal to 1 mol%, greater than or equal to 0.05 mol% and less than or equal to 0.75 mol%, greater than or equal to 0.05 mol% and less than or equal to 0.5 mol%, or even greater than or equal to 0.05 mol% and less than or equal to 0.25 mol%, or any and all subranges formed by any of these endpoints. In an embodiment, the glass composition and the resulting colored glass article may be substantially free or free of Fe ₂ O ₃ .

The glass compositions and resulting colored glass articles described herein may further comprise one or more fining agents. In an embodiment, the clarifying agent may include, for example, SnO ₂ . In an embodiment, the glass composition and the resulting colored glass product may contain SnO ₂ greater than or equal to 0.01 mol % and less than or equal to 1 mol %. In an embodiment, the glass composition and the resulting colored glass article may contain SnO ₂ greater than or equal to 0.05 mol % and less than or equal to 0.75 mol %. In embodiments, the concentration of SnO ₂ in the glass composition may be greater than or equal to 0 mol%, greater than or equal to 0.01 mol%, or greater than or equal to 0.05 mol%. In embodiments, the concentration of _SnO in the glass composition may be less than or equal to 1 mol%, less than or equal to 0.75 mol%, less than or equal to 0.5 mol%, or even less than or equal to 0.25 mol%. Ear%. In an embodiment, the concentration of SnO ₂ in the glass composition may be greater than or equal to 0 mol% and less than or equal to 1 mol%, greater than or equal to 0 mol% and less than or equal to 0.75 mol%, greater than or equal to or equal to 0 mol% and less than or equal to 0.5 mol%, greater than or equal to 0 mol% and less than or equal to 0.25 mol%, greater than or equal to 0.01 mol% and less than or equal to 1 mol%, Greater than or equal to 0.01 mol% and less than or equal to 0.75 mol%, greater than or equal to 0.01 mol% and less than or equal to 0.5 mol%, greater than or equal to 0.01 mol% and less than or equal to 0.25 mol% , greater than or equal to 0.05 mol% and less than or equal to 1 mol%, greater than or equal to 0.05 mol% and less than or equal to 0.75 mol%, greater than or equal to 0.05 mol% and less than or equal to 0.5 mol% %, or even greater than or equal to 0.01 mol % and less than or equal to 0.25 mol %, or any and all subranges formed by any of these endpoints. In embodiments, the glass composition and the resulting colored glass article may be substantially free or free of SnO ₂ .

In embodiments, the glass composition and resulting colored glass article may include alkaline earth metal oxides (eg, MgO, ZnO, CaO, SrO, and BaO).

In an embodiment, the concentration of MgO in the glass composition and the resulting colored glass product may be greater than or equal to 0 mol%, or even greater than or equal to 0.5 mol%. In embodiments, the concentration of MgO in the glass composition and the resulting colored glass article may be less than or equal to 2 mol%, or even less than or equal to 1 mol%. In an embodiment, the concentration of MgO in the glass composition and the obtained colored glass product may be greater than or equal to 0 mol% and less than or equal to 2 mol%, greater than or equal to 0 mol% and less than or equal to 1 mol%, greater than or equal to 0.5 mol% and less than or equal to 2 mol%, or even greater than or equal to 0.5 mol% and less than or equal to 1 mol%, or any of these endpoints Any and all subranges formed. In embodiments, the glass composition and resulting colored glass article may be substantially free or free of MgO.

In an embodiment, the concentration of ZnO in the glass composition and the resulting colored glass product may be greater than or equal to 0 mol%, or even greater than or equal to 0.5 mol%. In an embodiment, the concentration of ZnO in the glass composition and the resulting colored glass article may be less than or equal to 2 mol%, or even less than or equal to 1 mol%. In an embodiment, the concentration of ZnO in the glass composition and the resulting colored glass product may be greater than or equal to 0 mol% and less than or equal to 2 mol%, greater than or equal to 0 mol% and less than or equal to 1 mol%, greater than or equal to 0.5 mol% and less than or equal to 2 mol%, or even greater than or equal to 0.5 mol% and less than or equal to 1 mol%, or any of these endpoints Any and all subranges formed. In embodiments, the glass composition and the resulting colored glass article may be substantially free or free of ZnO.

In an embodiment, the concentration of CaO in the glass composition and the resulting colored glass product may be greater than or equal to 0 mol%, or even greater than or equal to 0.5 mol%. In embodiments, the concentration of CaO in the glass composition and the resulting colored glass article may be less than or equal to 2 mol%, or even less than or equal to 1 mol%. In an embodiment, the concentration of CaO in the glass composition and the resulting colored glass product may be greater than or equal to 0 mol% and less than or equal to 2 mol%, greater than or equal to 0 mol% and less than or equal to 1 mol%, greater than or equal to 0.5 mol% and less than or equal to 2 mol%, or even greater than or equal to 0.5 mol% and less than or equal to 1 mol%, or any of these endpoints Any and all subranges formed. In embodiments, the glass composition and the resulting colored glass article may be substantially free or free of CaO.

In an embodiment, the SrO concentration in the glass composition and the resulting colored glass product may be greater than or equal to 0 mol%, or even greater than or equal to 0.5 mol%. In an embodiment, the SrO concentration in the glass composition and the resulting colored glass article may be less than or equal to 2 mol%, or even less than or equal to 1 mol%. In an embodiment, the concentration of SrO in the glass composition and the obtained colored glass product may be greater than or equal to 0 mol% and less than or equal to 2 mol%, greater than or equal to 0 mol% and less than or equal to 1 mol%, greater than or equal to 0.5 mol% and less than or equal to 2 mol%, or even greater than or equal to 0.5 mol% and less than or equal to 1 mol%, or any of these endpoints Any and all subranges formed. In an embodiment, the glass composition and the resulting colored glass article may be substantially free of or free of SrO.

In an embodiment, the concentration of BaO in the glass composition and the resulting colored glass product may be greater than or equal to 0 mol%, or even greater than or equal to 0.5 mol%. In an embodiment, the concentration of BaO in the glass composition and the resulting colored glass article may be less than or equal to 2 mol%, or even less than or equal to 1 mol%. In an embodiment, the concentration of BaO in the glass composition and the resulting colored glass product may be greater than or equal to 0 mol% and less than or equal to 2 mol%, greater than or equal to 0 mol% and less than or equal to 1 mol%, greater than or equal to 0.5 mol% and less than or equal to 2 mol%, or even greater than or equal to 0.5 mol% and less than or equal to 1 mol%, or any of these endpoints Any and all subranges formed. In embodiments, the glass composition and the resulting colored glass article may be substantially free or free of BaO.

In an embodiment, the glass composition and resulting colored glass article may include Cl that enables the growth of certain Au particles. In an embodiment, the concentration of Cl in the glass composition and the resulting colored glass product may be greater than or equal to 0 mol%, or even greater than or equal to 0.1 mol%. In embodiments, the concentration of Cl in the glass composition and the resulting colored glass article may be less than or equal to 0.5 mol%, or even less than or equal to 0.25 mol%. In an embodiment, the concentration of Cl in the glass composition and the resulting colored glass product may be greater than or equal to 0 mol% and less than or equal to 0.5 mol%, greater than or equal to 0 mol% and less than or equal to 0.25 mol%, greater than or equal to 0.1 mol% and less than or equal to 0.5 mol%, or even greater than or equal to 0.1 mol% and less than or equal to 0.25 mol%, or any of these endpoints Any and all subranges formed. In embodiments, the glass composition and resulting colored glass article may be substantially free or free of Cl.

In embodiments, the glass composition and the resulting colored glass article may be substantially free or free of MgO, CaO, ZnO, Cl, or combinations thereof.

The glass composition and the obtained colored glass product further contain Au as a colorant in order to realize a desired color. In an embodiment, the glass composition and the resulting colored glass article may contain Au greater than or equal to 1×10 ⁻⁶ mol % and less than or equal to 1 mol %. In an embodiment, the glass composition and the resulting colored glass article may contain Au greater than or equal to 0.0001 mol % and less than or equal to 0.1 mol %. In an embodiment, the concentration of Au in the glass composition and the obtained colored glass product may be greater than or equal to 1×10 ^-6 mol %, greater than or equal to 1 × 10 ^-5 mol %, greater than or equal to 0.0001 mol % mol%, greater than or equal to 0.0005 mol%, or even greater than or equal to 0.001 mol%. In an embodiment, the concentration of Au in the glass composition and the resulting colored glass product may be less than or equal to 1 mol%, less than or equal to 0.75 mol%, less than or equal to 0.5 mol%, less than or equal to Or equal to 0.25 mole%, less than or equal to 0.1 mole%, less than or equal to 0.05 mole%, or even less than or equal to 0.01. In an embodiment, the concentration of Au in the glass composition and the obtained colored glass product may be greater than or equal to 1×10 ^-6 mol % and less than or equal to 0.75 mol %, greater than or equal to 1 × 10 ^-6 Mole% and less than or equal to 0.5 mole%, greater than or equal to 1× ^10-6 mole% and less than or equal to 0.25 mole%, greater than or equal to 1× ^10-6 mole% and less than or equal to 0.1 mol%, greater than or equal to 1×10 ^-6 mol% and less than or equal to 0.05 mol%, greater than or equal to 1×10 ^-6 mol% and less than or equal to 0.01 mol%, greater than or equal to 1×10 ^-5 mol% and less than or equal to 1 mol%, greater than or equal to 1×10 ^-5 mol% and less than or equal to 0.75 mol%, greater than or equal to 1×10 ^-5 mol% and less than or equal to 0.5 mol%, greater than or equal to 1×10 ^-5 mol% and less than or equal to 0.25 mol%, greater than or equal to 1×10 ^-5 mol% and less than or equal to 0.1 mol% %, greater than or equal to 1×10 ^-5 mol% and less than or equal to 0.05 mol%, greater than or equal to 1×10 ^-5 mol% and less than or equal to 0.01 mol%, greater than or equal to 0.0001 mol% % and less than or equal to 1 mol%, greater than or equal to 0.0001 mol% and less than or equal to 0.75 mol%, greater than or equal to 0.0001 mol% and less than or equal to 0.5 mol%, greater than or equal to 0.0001 mol% Mole% and less than or equal to 0.25 mole%, greater than or equal to 0.0001 mole% and less than or equal to 0.1 mole%, greater than or equal to 0.0001 mole% and less than or equal to 0.05 mole%, greater than or equal to 0.0001 Mole% and less than or equal to 0.01 mole%, greater than or equal to 0.0005 mole% and less than or equal to 1 mole%, greater than or equal to 0.0005 mole% and less than or equal to 0.75 mole%, greater than or equal to 0.0005 mol% and less than or equal to 0.5 mol%, greater than or equal to 0.0005 mol% and less than or equal to 0.25 mol%, greater than or equal to 0.0005 mol% and less than or equal to 0.1 mol%, greater than or Equal to 0.0005 mol% and less than or equal to 0.05 mol%, greater than or equal to 0.0005 mol% and less than or equal to 0.01 mol%, greater than or equal to 0.001 mol% and less than or equal to 1 mol%, greater than or equal to 0.001 mol% and less than or equal to 0.75 mol%, greater than or equal to 0.001 mol% and less than or equal to 0.5 mol%, greater than or equal to 0.001 mol% and less than or equal to 0.25 mol%, Greater than or equal to 0.001 mol% and less than or equal to 0.1 mol%, greater than or equal to 0.001 mol% and less than or equal to 0.05 mol%, or even greater than or equal to 0.001 mol% and less than or equal to 0.01 mol% %, or any and all subranges formed by any of these endpoints.

In an embodiment, the glass composition described herein and the resulting colored glass product may further include impurity materials (for example, TiO ₂ , MnO, MoO ₃ , WO ₃ , Y ₂ O ₃ , CdO, As ₂ O ₃ , sulfur-based compounds (eg, sulfates), halogens, or combinations thereof). In an embodiment, the glass composition and the resulting colored glass article may be substantially free or free of impurity materials (for example, TiO ₂ , MnO, MoO ₃ , WO ₃ , Y ₂ O ₃ , CdO, As ₂ O ₃ , sulfur-based compounds (eg, sulfates), halogens, or combinations thereof). In embodiments, antimicrobial ingredients, chemical clarifying agents, or other additional ingredients may be included in the glass compositions and resulting colored glass articles.

In embodiments, the viscosity of the glass composition may be adjusted to prevent devitrification of the glass composition and formation of Au particles during melting and forming. The formation of Au particles prior to melting may limit the color gamut achievable by thermal processing. Therefore, in an embodiment, in order to achieve the desired viscosity and thereby prevent the formation of Au particles before melting, the glass composition described herein and the resulting glass product can satisfy the relationship 5.72*Al ₂ O ₃ (Mo Mole %)-21.4*ZnO (Mole %)-2.5*P ₂ O ₅ (Mole %)-35*Li ₂ O (Mole %)-16.6*B ₂ O ₃ (Mole %)-20.5* MgO (Mole%)-23.3*Na ₂ O (Mole%)-27.9*SrO (Mole%)-18.5*K ₂ O (Mole%)-26.3*CaO (Mole%) is greater than -609 Mole %. In an embodiment, the glass composition described herein and the obtained glass product can satisfy the relational formula 5.72*Al ₂ O ₃ (mole %)-21.4*ZnO (mole %)-2.5*P ₂ O ₅ ( Mole %)-35*Li ₂ O (Mole %)-16.6*B ₂ O ₃ (Mole %)-20.5*MgO (Mole %)-23.3*Na ₂ O (Mole %)-27.9* SrO (Mole%)-18.5*K ₂ O (Mole%)-26.3*CaO (Mole%) is greater than -609 Mole%, greater than or equal to -575 Mole%, greater than or equal to -550 Mole %, or even greater than or equal to -525 mole %. In an embodiment, the glass composition described herein and the obtained glass product can satisfy the relational formula 5.72*Al ₂ O ₃ (mole %)-21.4*ZnO (mole %)-2.5*P ₂ O ₅ ( Mole %)-35*Li ₂ O (Mole %)-16.6*B ₂ O ₃ (Mole %)-20.5*MgO (Mole %)-23.3*Na ₂ O (Mole %)-27.9* SrO (mol%)-18.5*K ₂ O (mol%)-26.3*CaO (mol%) is less than or equal to -400 mol%, less than or equal to -425 mol%, or even at least Less than or equal to -450 mol%. In an embodiment, the glass composition described herein and the obtained glass product can satisfy the relational formula 5.72*Al ₂ O ₃ (mole %)-21.4*ZnO (mole %)-2.5*P ₂ O ₅ ( Mole %)-35*Li ₂ O (Mole %)-16.6*B ₂ O ₃ (Mole %)-20.5*MgO (Mole %)-23.3*Na ₂ O (Mole %)-27.9* SrO (Mole%)-18.5*K ₂ O (Mole%)-26.3*CaO (Mole%) is greater than -609 Mole% and less than or equal to -400 Mole%, greater than -609 Mole% And less than or equal to -425 mol%, greater than -609 mol% and less than or equal to -450 mol%, greater than or equal to -575 mol% and less than or equal to -400 mol%, greater than or equal to -575 mol% and less than or equal to -425 mol%, greater than or equal to -575 mol% and less than or equal to -450 mol%, greater than or equal to -550 mol% and less than or equal to -400 Mole %, greater than or equal to -550 mole % and less than or equal to -425 mole %, greater than or equal to -550 mole % and less than or equal to -450 mole %, greater than or equal to -525 mole % and less than or equal to -400 mol%, greater than or equal to -525 mol% and less than or equal to -425 mol%, or even greater than or equal to -525 mol% and less than or equal to -450 mol% , or any and all subranges formed by any of these endpoints.

In an embodiment, a method for making a glass article comprises the step of thermally processing a glass composition described herein at one or more preselected temperatures for one or more preselected periods of time to induce Homogenize the glass. In an embodiment, the thermal processing for manufacturing a glass product may include: (i) heating the glass composition to the glass homogenization temperature at a rate of 1-100° C./min; (ii) heating the glass composition to the glass homogenization temperature maintaining the temperature for a period of greater than or equal to 0.25 hours and less than or equal to 4 hours to produce a glass article; and (iii) cooling the formed glass article to room temperature. In an embodiment, the glass homogenization temperature may be greater than or equal to 300°C and less than or equal to 700°C.

The glass compositions described herein include Au, R ₂ O, and Al ₂ O ₃ . The concentration of R ₂ O and Al ₂ O ₃ can be adjusted so that the difference of R ₂ O-Al ₂ O ₃ combines with Au to produce a colored Glass product. In an embodiment, a tinted glass article may have transmission color coordinates in CIELAB color space measured at an article thickness of 1.33 mm under F2 illumination and a standard observer angle of 10°, wherein: L* is greater than or equal to 50 and less than or equal to 100; a* is greater than or equal to -15 and less than or equal to 25; and b* is greater than or equal to -25 and less than or equal to 25.

Relatively small concentrations of R ₂ O—Al ₂ O ₃ (eg, less than or equal to 1.5 mole %) may result in blue or purple glassware. Relatively high concentrations of R ₂ O—Al ₂ O ₃ (eg, greater than 1.5 mole %) may result in orange or red colored glass articles.

For example, in an embodiment, R ₂ O—Al ₂ O ₃ may be greater than or equal to -5 mol% and less than or equal to 1.5 mol%, and b* may be greater than or equal to -25 and less than or equal to 10. In an embodiment, R ₂ O—Al ₂ O ₃ may be greater than or equal to −3 mol% and less than or equal to 1.5 mol%, and b* may be greater than or equal to −15 and less than or equal to 7. In an embodiment, _R2O - _Al2O3 may be greater than or equal to -5 mol% and less than or equal to 1.5 mol%, greater than or equal to -3 mol% and _less than or equal to 1.5 mol%, Greater than or equal to -1 mol% and less than or equal to 1.5 mol%, or even greater than or equal to 0 mol% and less than or equal to 1.5 mol%, or any of these endpoints and all subranges; and b* can be greater than or equal to -25 and less than or equal to 10, greater than or equal to -25 and less than or equal to 7, greater than or equal to -25 and less than or equal to 5, greater than or equal to -15 and less than or equal to 10, greater than or equal to -15 and less than or equal to 7, greater than or equal to -15 and less than or equal to 5, greater than or equal to -10 and less than or equal to 10, greater than or equal to -10 and less Less than or equal to 7, or even greater than or equal to -10 and less than or equal to 5, or any and all subranges formed by any of these endpoints.

In an embodiment, R ₂ O—Al ₂ O ₃ may be greater than 1.5 mol% and less than or equal to 7 mol%, and b* may be greater than or equal to 0 and less than or equal to 25. In an embodiment, R ₂ O—Al ₂ O ₃ may be greater than 1.5 mol% and less than or equal to 5 mol%, and b* may be greater than or equal to 0 and less than or equal to 15. In embodiments, R ₂ O—Al ₂ O ₃ may be greater than 1.5 mol % and less than or equal to 7 mol %, greater than 1.5 mol % and less than or equal to 5 mol %, or even greater than 1.5 mol % % and less than or equal to 3 mole %, or any and all subranges formed by any of these endpoints; and b* may be greater than or equal to 0 and less than or equal to 25, greater than or equal to 0 and less Greater than or equal to 15, greater than or equal to 0 and less than or equal to 10, greater than or equal to 2.5 and less than or equal to 25, greater than or equal to 2.5 and less than or equal to 15, greater than or equal to 2.5 and less than or equal to 10, greater than or equal to 5 and less than or equal to 25, greater than or equal to 5 and less than or equal to 15, or even greater than or equal to 5 and less than or equal to 10, or any and all subgroups formed by any of these endpoints scope.

In an embodiment, the glass composition and the resulting colored glass product may include: greater than or equal to 60 mol % and less than or equal to 70 mol % of SiO ₂ ; greater than or equal to 11 mol % and less than or equal to 17 mol% Al ₂ O ₃ ; greater than or equal to 2 mol % and less than or equal to 8 mol % B ₂ O ₃ ; greater than or equal to 9 mol % and less than or equal to 14 mol % Li ₂ O; greater than or equal to 2 mol % and less than or equal to 6 mol % Na ₂ O; greater than or equal to 0.1 mol % and less than or equal to 0.5 mol % K ₂ O; and greater than or equal to 1 ×10 ^-6 mol% and less than or equal to 0.05 mol% of Au. In these embodiments, R ₂ O-Al ₂ O ₃ is greater than or equal to 0 mole % and less than or equal to 3 mole %, R ₂ O is Li ₂ O, Na ₂ O, and K ₂ O sum.

Different color coordinates within the color gamut can be achieved by varying the thermal processing cycle used to produce the resulting colored glass article. Thermal processing cycles are characterized by the temperature of the environment (ie, the oven) and the duration of the cycle (ie, the time the glass article is exposed to the heated environment). As used herein, the phrase "temperature of the thermal processing cycle" refers to the temperature of the environment (ie, the oven). In embodiments, glass articles formed from the glass compositions described herein are thermally processed in an isothermal oven to produce the resulting colored glass articles.

In embodiments, the temperature of the thermal processing cycle is greater than or equal to 500°C, greater than or equal to 550°C, greater than or equal to 575°C, greater than or equal to 600°C, greater than or equal to 625°C, or even greater than or equal to 650°C. In embodiments, the temperature of the thermal processing cycle is 800°C or less, 775°C or less, 750°C or less, 725°C or less, or even 700°C or less. In an embodiment, the temperature of the thermal processing cycle is greater than or equal to 500°C and less than or equal to 800°C, greater than or equal to 500°C and less than or equal to 775°C, greater than or equal to 500°C and less than or equal to 750°C, Greater than or equal to 500°C and less than or equal to 725°C, greater than or equal to 550°C and less than or equal to 700°C, greater than or equal to 550°C and less than or equal to 800°C, greater than or equal to 550°C and less than or equal to 775°C °C, greater than or equal to 550 °C and less than or equal to 750 °C, greater than or equal to 550 °C and less than or equal to 725 °C, greater than or equal to 550 °C and less than or equal to 700 °C, greater than or equal to 575 °C and less than or Equal to 800°C, greater than or equal to 575°C and less than or equal to 775°C, greater than or equal to 575°C and less than or equal to 750°C, greater than or equal to 575°C and less than or equal to 725°C, greater than or equal to 575°C and less At or above 700°C, greater than or equal to 600°C and less than or equal to 800°C, greater than or equal to 600°C and less than or equal to 775°C, greater than or equal to 600°C and less than or equal to 750°C, greater than or equal to 600°C And less than or equal to 725°C, greater than or equal to 600°C and less than or equal to 700°C, greater than or equal to 625°C and less than or equal to 800°C, greater than or equal to 625°C and less than or equal to 775°C, greater than or equal to 625°C and less than or equal to 750°C, greater than or equal to 625°C and less than or equal to 725°C, greater than or equal to 625°C and less than or equal to 700°C, greater than or equal to 650°C and less than or equal to 800°C, greater than or equal to 650°C and less than or equal to 775°C, greater than or equal to 650°C and less than or equal to 750°C, greater than or equal to 650°C and less than or equal to 725°C, or even greater than or equal to 650°C and less than or equal to 700°C, or any and all subranges formed by any of these endpoints.

In embodiments, the duration of the thermal processing cycle is greater than or equal to 0.25 hours, greater than or equal to 0.5 hours, greater than or equal to 1 hour, or even greater than or equal to 2 hours. In embodiments, the duration of the thermal processing cycle is less than or equal to 24 hours, less than or equal to 16 hours, less than or equal to 8 hours, or even less than or equal to 4 hours. In embodiments, the duration of the thermal processing cycle is greater than or equal to 0.25 hours and less than or equal to 24 hours, greater than or equal to 0.25 hours and less than or equal to 16 hours, greater than or equal to 0.25 hours and less than or equal to 8 hours , greater than or equal to 0.25 hours and less than or equal to 4 hours, greater than or equal to 0.5 hours and less than or equal to 24 hours, greater than or equal to 0.5 hours and less than or equal to 16 hours, greater than or equal to 0.5 hours and less than or equal to 8 hours, greater than or equal to 0.5 hours and less than or equal to 4 hours, greater than or equal to 1 hour and less than or equal to 24 hours, greater than or equal to 1 hour and less than or equal to 16 hours, greater than or equal to 1 hour and less than or equal to 8 hours, greater than or equal to 1 hour and less than or equal to 4 hours, greater than or equal to 2 hours and less than or equal to 24 hours, greater than or equal to 2 hours and less than or equal to 16 hours, greater than or equal to 2 hours and Less than or equal to 8 hours, or even greater than or equal to 2 hours and less than or equal to 4 hours, or any and all subranges formed by any of these endpoints.

Tinted glass articles formed from the glass compositions described herein can be of any suitable thickness, which can vary depending on the particular application of the colored glass article. In an embodiment, the thickness of the colored glass article may be greater than or equal to 250 μm and less than or equal to 6 mm, greater than or equal to 250 μm and less than or equal to 4 mm, greater than or equal to 250 μm and less than or equal to 2 mm, greater than or equal to 250 μm and less Less than or equal to 1 mm, greater than or equal to 250 μm and less than or equal to 750 μm, greater than or equal to 250 μm and less than or equal to 500 μm, greater than or equal to 500 μm and less than or equal to 6 mm, greater than or equal to 500 μm and less than or equal to 4 mm, greater than or equal to 500 μm and less than or equal to 2 mm, greater than or equal to 500 μm and less than or equal to 1 mm, greater than or equal to 500 μm and less than or equal to 750 μm, greater than or equal to 750 μm and less than or equal to 6 mm, greater than or equal to 750 μm and less or equal to 4mm, greater than or equal to 750μm and less than or equal to 2mm, greater than or equal to 750μm and less than or equal to 1mm, greater than or equal to 1mm and less than or equal to 6mm, greater than or equal to 1mm and less than or equal to 4mm, greater than or equal to Equal to 1 mm and less than or equal to 2 mm, greater than or equal to 2 mm and less than or equal to 6 mm, greater than or equal to 2 mm and less than or equal to 4 mm, or even greater than or equal to 4 mm and less than or equal to 6 mm, or one of these endpoints Any and all subranges formed by either.

As noted above, colored glass articles formed from the glass compositions described herein can have increased fracture toughness, making the colored glass articles more resistant to damage. In an embodiment, the colored glass article may have a K _Ic fracture toughness before ion exchange measured by the CNSB method of greater than or equal to 0.7 MPa·m ^1/2 . In an embodiment, the K _Ic fracture toughness of the colored glass product before ion exchange measured by the CNSB method may be greater than or equal to 0.7MPa·m ^1/2 , greater than or equal to 0.8MPa·m ^1/2 , greater than or equal to 0.9MPa • m ^1/2 , or even greater than or equal to 1.0 MPa·m ^1/2 .

In embodiments, the glass compositions described herein are ion-exchangeable to facilitate strengthening colored glass articles made from the glass compositions. In a typical ion exchange process, the smaller metals in the glass composition are replaced or "exchanged" with larger metal ions of the same valence in a layer near the outer surface of a colored glass article made from the glass composition ion. Replacing smaller ions with larger ions creates compressive stress within the layers of a colored glass article made from the glass composition. In an embodiment, the metal ion system is a monovalent metal ion (for example, Li ⁺ , Na ⁺ , K ⁺ , and the like), and is used to replace the colored glass product by immersing a glass product made of the glass composition into a ion exchange in a bath of at least one molten salt of larger metal ions in smaller metal ions. Alternatively, other monovalent ions (eg, Ag ⁺ , Tl ⁺ , Cu ⁺ , and the like) can be exchanged for monovalent ions. One or more ion exchange treatments for strengthening colored glass articles made from glass compositions may include contacting the colored glass articles with an ion exchange medium. In an embodiment, the ion exchange medium may be a molten salt bath. For example, ion exchange treatment may include, but is not limited to, immersion in a single bath or multiple baths of similar or different composition, with optional washing and/or annealing steps between immersions.

After exposure to colored glassware, the temperature of the ion exchange solution (eg, _KNO3 and/or _NaNO3 molten salt bath) may be greater than or equal to 350°C and less than or equal to 500°C, greater than or equal to 360°C, according to embodiments And less than or equal to 450°C, greater than or equal to 370°C and less than or equal to 440°C, greater than or equal to 360°C and less than or equal to 420°C, greater than or equal to 370°C and less than or equal to 400°C, greater than or equal to 375°C and less than or equal to 475°C, greater than or equal to 400°C and less than or equal to 500°C, greater than or equal to 410°C and less than or equal to 490°C, greater than or equal to 420°C and less than or equal to 480°C, greater than Or equal to 430°C and less than or equal to 470°C, or even greater than or equal to 440°C and less than or equal to 460°C, or any and all subranges between the foregoing values. In embodiments, the duration of exposure of the colored glass article to the ion exchange solution may be greater than or equal to 2 hours and less than or equal to 24 hours, greater than or equal to 2 hours and less than or equal to 12 hours, greater than or equal to 2 hours and less than Less than or equal to 6 hours, greater than or equal to 8 hours and less than or equal to 24 hours, greater than or equal to 6 hours and less than or equal to 24 hours, greater than or equal to 6 hours and less than or equal to 12 hours, greater than or equal to 8 hours and less than or equal to 24 hours, or even greater than or equal to 8 hours and less than or equal to 12 hours, or any and all subranges formed by any of these endpoints.

In an embodiment, the colored glass article made of the glass composition may have a compression depth of 10 μm or greater, 20 μm or greater, 30 μm or greater, 40 μm or greater, 50 μm or greater, 60 μm or more, 70 μm or more, 80 μm or more, 90 μm or more, or 100 μm or more. In an embodiment, the colored glass article made of the glass composition may have a thickness "t", and the compression depth achieved by ion exchange may be greater than or equal to 0.15t, greater than or equal to 0.17t, or even greater than or equal to 0.2t. In an embodiment, the colored glass article made of the glass composition may have a thickness "t", and the depth of compression achieved by ion exchange may be less than or equal to 0.3t, less than or equal to 0.27t, or even at least greater than or equal to 0.25t. In an embodiment, the colored glass article made of the glass composition described herein may have a thickness "t", and the compression depth achieved by ion exchange may be greater than or equal to 0.15t and less than or equal to 0.3t, Greater than or equal to 0.15t and less than or equal to 0.27t, greater than or equal to 0.15t and less than or equal to 0.25t, greater than or equal to 0.17t and less than or equal to 0.3t, greater than or equal to 0.17t and less than or equal to 0.27 t, greater than or equal to 0.17t and less than or equal to 0.25t, greater than or equal to 0.2t and less than or equal to 0.3t, greater than or equal to 0.2t and less than or equal to 0.27t, or even greater than or equal to 0.2t and less At or equal to 0.25t, or any and all subranges formed by any of these endpoints.

The development of this surface compressive layer facilitates better crack resistance and higher flexural strength compared to non-ion exchange materials. The surface compression layer has a higher concentration of ions exchanged into the colored glass article than the concentration of ions exchanged into the colored glass article for the bulk of the colored glass article (ie, not including the region of surface compression). In an embodiment, the surface compressive stress of the colored glass article made of the glass composition after ion exchange strengthening may be greater than or equal to 300 MPa, greater than or equal to 400 MPa, greater than or equal to 500 MPa, or even greater than or equal to 600 MPa. In an embodiment, the surface compressive stress of the colored glass article made of the glass composition after ion exchange strengthening may be less than or equal to 1 GPa, less than or equal to 900 MPa, or even less than or equal to 800 MPa. In an embodiment, the surface compressive stress of the colored glass product made of the glass composition after ion exchange strengthening may be greater than or equal to 300 MPa and less than or equal to 1 GPa, greater than or equal to 300 MPa and less than or equal to 900 MPa, greater than or equal to Equal to 300MPa and less than or equal to 800MPa, greater than or equal to 400MPa and less than or equal to 1GPa, greater than or equal to 400MPa and less than or equal to 900MPa, greater than or equal to 400MPa and less than or equal to 800MPa, greater than or equal to 500MPa and less than or Equal to 1GPa, greater than or equal to 500MPa and less than or equal to 900MPa, greater than or equal to 500MPa and less than or equal to 800MPa, greater than or equal to 600MPa and less than or equal to 1GPa, greater than or equal to 600MPa and less than or equal to 900MPa, greater than or equal to 600MPa and less than or equal to 800MPa.

In an embodiment, the maximum central tension of the colored glass article made of the glass composition after ion exchange strengthening may be greater than or equal to 40 MPa, greater than or equal to 60 MPa, greater than or equal to 80 MPa, or even greater than or equal to 100 MPa. In an embodiment, the maximum central tension of the colored glass article made of the glass composition after ion exchange strengthening may be less than or equal to 250 MPa, less than or equal to 200 MPa, or even less than or equal to 150 MPa. In an embodiment, the maximum central tension of the colored glass product made of the glass composition after ion exchange strengthening may be greater than or equal to 40 MPa and less than or equal to 250 MPa, greater than or equal to 40 MPa and less than or equal to 200 MPa, greater than or equal to Equal to 40MPa and less than or equal to 150MPa, greater than or equal to 60MPa and less than or equal to 250MPa, greater than or equal to 60MPa and less than or equal to 200MPa, greater than or equal to 60MPa and less than or equal to 150MPa, greater than or equal to 80MPa and less than or Equal to 250MPa, greater than or equal to 80MPa and less than or equal to 200MPa, greater than or equal to 80MPa and less than or equal to 150MPa, greater than or equal to 100MPa and less than or equal to 250MPa, greater than or equal to 100MPa and less than or equal to 200MPa, or even greater than or equal to 100 MPa and less than or equal to 150 MPa, or any and all subranges formed by any of these endpoints. As used herein, unless otherwise stated, central tension refers to the maximum central tension value.

The colored glass articles described herein can be used in a variety of applications including, for example, back cover applications in consumer or commercial electronic devices (eg, smartphones, tablets, personal computers, laptops, televisions, and cameras). Figures 1 and 2 illustrate exemplary articles incorporating any of the colored glass articles disclosed herein. Specifically, FIGS. 1 and 2 illustrate a consumer electronic device 100 comprising: a housing 102 having a front surface 104, a rear surface 106, and side surfaces 108; electronic components (not shown), at least partially located inside or entirely inside the housing and including at least a controller, a memory, and a display 110 at or adjacent to the front surface of the housing; and a cover substrate 112 at the front surface of the housing or above the front surface and above the display. In an embodiment, at least a portion (eg, rear side 106 ) of housing 102 may include any of the colored glass articles disclosed herein. example

For an easier understanding of the various embodiments, reference is made to the following examples, which illustrate various embodiments of the colored glass articles described herein.

Table 1 shows the analytical concentrations (in mole %) of exemplary compositions C1-C26 and the resulting colored glass articles.

Table 1 Composition C1 C2 C3 C4 C5 C6 SiO ₂ 61.21 61.94 62.86 61.81 61.91 61.36 Al ₂ O ₃ 14.46 14.48 14.52 15.56 15.54 15.75 B ₂ O ₃ 5.84 5.95 5.92 5.88 5.89 5.91 Li ₂ O 11.79 10.95 11.01 11.05 11.02 11.17 Na ₂ O 6.34 6.32 5.34 5.34 5.34 5.42 K ₂ O 0.19 0.19 0.19 0.19 0.19 0.19 MgO 0.01 0.02 0.01 0.02 0.02 0.02 CaO - - - - - - ZnO - - - - - - _ZrO2 - - - - - - _SnO2 0.11 0.11 0.10 0.11 0.05 0.06 _{Fe2O3 _} - - - - - 0.07 Cl 0.02 0.03 0.02 0.03 0.02 0.02 Au 0.0005 0.0007 0.0009 0.0008 0.0007 0.0005 R ₂ O 18.32 17.46 16.54 16.58 16.55 16.78 _{R2O - Al2O3} 3.86 2.98 2.02 1.02 1.01 1.03 5.72*Al ₂ O ₃ - 21.4*ZnO - 2.5*P ₂ O ₅ - 35*Li ₂ O - 16.6*B ₂ O ₃ - 20.5*MgO - 23.3*Na ₂ O - 27.9*SrO - 18.5*K ₂ O - 26.3*CaO -578.32 -550.38 -528.71 -523.70 -522.93 -529.18

Continuation of Table 1 Composition C7 C8 C9 C10 C11 C12 SiO ₂ 61.24 60.87 60.67 60.54 60.56 60.70 Al ₂ O ₃ 15.66 16.54 16.47 16.52 16.36 16.27 B ₂ O ₃ 5.89 5.85 5.84 5.99 6.04 6.01 Li ₂ O 11.15 11.08 10.97 11.06 11.13 11.12 Na ₂ O 5.38 5.34 5.35 5.27 5.28 5.28 K ₂ O 0.19 0.19 0.19 0.20 0.20 0.19 MgO 0.01 0.02 0.02 0.02 0.02 0.02 CaO - - - - - - ZnO - - - - - - _ZrO2 0.32 - 0.31 0.32 0.32 0.32 _SnO2 0.05 0.06 0.05 0.05 0.05 0.05 _{Fe2O3 _} 0.07 - 0.07 - - - Cl 0.02 0.02 0.02 - - - Au 0.0005 0.0007 0.0005 0.0007 0.0008 0.0008 R ₂ O 16.72 16.61 16.51 16.53 16.61 16.59 _{R2O - Al2O3} 1.06 0.07 0.04 0.01 0.25 0.32 5.72*Al ₂ O ₃ - 21.4*ZnO - 2.5*P ₂ O ₅ - 35*Li ₂ O - 16.6*B ₂ O ₃ - 20.5*MgO - 23.3*Na ₂ O - 27.9*SrO - 18.5*K ₂ O - 26.3*CaO -527.52 -518.65 -515.27 -518.94 -523.37 -522.85

Continuation of Table 1 Composition C13 C14 C15 C16 C17 C18 SiO ₂ 60.64 60.64 63.76 65.01 65.86 67.01 Al ₂ O ₃ 16.07 15.42 14.39 14.29 14.28 13.47 B ₂ O ₃ 6.01 6.04 5.86 5.09 4.36 4.13 Li ₂ O 11.37 11.50 11.02 10.96 10.95 10.92 Na ₂ O 5.28 5.76 4.24 4.23 4.22 4.20 K ₂ O 0.19 0.19 0.14 0.14 0.14 0.14 MgO 0.02 0.02 0.04 0.03 0.02 0.02 CaO - - - - 0.01 0.01 ZnO - - 0.02 - - - _ZrO2 0.32 0.32 0.48 0.20 0.10 0.04 _SnO2 0.05 0.05 0.04 0.04 0.04 0.04 _{Fe2O3 _} - - - - - - Cl - - - - - - Au 0.0008 0.0008 0.0011 0.0010 0.0010 0.0010 R ₂ O 16.84 17.45 15.41 15.33 15.31 15.26 _{R2O - Al2O3} 0.77 2.03 1.01 1.04 1.03 1.79 5.72*Al ₂ O ₃ - 21.4*ZnO - 2.5*P ₂ O ₅ - 35*Li ₂ O - 16.6*B ₂ O ₃ - 20.5*MgO - 23.3*Na ₂ O - 27.9*SrO - 18.5*K ₂ O - 26.3*CaO -532.74 -552.69 -503.22 -488.03 -475.55 -474.86

Continuation of Table 1 Composition C19 C20 C21 C22 C23 SiO ₂ 67.59 67.75 67.84 67.89 67.63 Al ₂ O ₃ 13.13 13.01 12.96 12.99 13.15 B ₂ O ₃ 3.93 3.92 3.92 3.92 3.94 Li ₂ O 10.94 10.91 10.88 10.77 10.69 Na ₂ O 4.17 4.17 4.17 4.20 4.21 K ₂ O 0.14 0.14 0.14 0.14 0.15 MgO 0.02 0.02 0.01 0.01 0.01 CaO 0.01 0.01 0.01 0.01 0.10 ZnO 0.00 0.00 0.00 0.00 0.00 _ZrO2 0.02 0.02 0.01 0.01 0.02 _SnO2 0.04 0.04 0.04 0.04 0.04 _{Fe2O3 _} 0.00 0.00 0.00 0.00 0.00 Cl 0.00 0.00 0.00 0.00 0.00 Au 0.0011 0.0014 0.0016 0.0006 0.0001 R ₂ O 15.25 15.22 15.20 15.11 15.04 _{R2O - Al2O3} 2.13 2.21 2.24 2.12 1.90 5.72*Al ₂ O ₃ - 21.4*ZnO - 2.5*P ₂ O ₅ - 35*Li ₂ O - 16.6*B ₂ O ₃ - 20.5*MgO - 23.3*Na ₂ O - 27.9*SrO - 18.5*K ₂ O - 26.3*CaO -473.41 -473.02 -472.32 -468.73 -468.03

Continuation of Table 1 Composition C24 C25 C26 SiO ₂ 63.76 65.86 67.59 Al ₂ O ₃ 14.39 14.28 13.13 B ₂ O ₃ 5.86 4.36 3.93 Li ₂ O 11.02 10.95 10.94 Na ₂ O 4.24 4.22 4.17 K ₂ O 0.14 0.14 0.14 MgO 0.04 0.02 0.02 CaO 0.00 0.00 0.00 ZnO 0.02 0.00 0.00 _ZrO2 0.48 0.10 0.02 _SnO2 0.04 0.04 0.04 _{Fe2O3 _} 0.00 0.00 0.00 Cl 0.00 0.00 0.00 Au 8.3 x 10 ^-6 7.7 x 10 ^-6 8.0 x 10 ^-6 R ₂ O 15.40 15.31 15.25 _{R2O - Al2O3} 1.01 1.03 2.12 5.72*Al ₂ O ₃ - 21.4*ZnO - 2.5*P ₂ O ₅ - 35*Li ₂ O - 16.6*B ₂ O ₃ - 20.5*MgO - 23.3*Na ₂ O - 27.9*SrO - 18.5*K ₂ O - 26.3*CaO -503.30 -475.27 -473.20

Referring now to Table 2, exemplary glass articles A1-A52 formed with exemplary compositions C2-C9 and C15-C23 shown in Table 1 were subjected to thermal processing at the temperatures and time periods shown in Table 2. Table 2 shows the transmitted color coordinates in CIELAB color space measured at an article thickness of 1.33 mm under F2 illumination and a 10° standard observer angle, and the observable color of the resulting colored glass articles.

Table 2 Glass product A1 A2 A3 A4 A5 A6 Composition C18 C19 C20 C21 C22 C23 Thermal processing temperature (°C) 550 550 550 550 550 550 Thermal processing time (hours) 8 8 8 8 8 8 L* 87.39 88.12 86.98 86.12 91.39 96.68 a* 7.72 7.34 8.39 9.23 4.78 0.00 b* 1.87 4.93 8.07 9.58 3.81 0.80 observable color orange orange orange orange orange pale yellow

Continuation form 2 Glass product A7 A8 A9 A10 A11 A12 Composition C15 C16 C17 C18 C18 C19 Thermal processing temperature (°C) 575 575 575 575 575 575 Thermal processing time (hours) 2 2 2 8 2 8 L* 83.48 92.46 85.94 88.08 91.19 88.2 a* 0.19 0.98 1.68 8.15 3.07 7.80 b* -6.06 -0.93 -4.63 5.71 -0.47 6.51 observable color blue Purple Purple orange Pink orange

Continuation form 2 Glass product A13 A14 A15 A16 A17 A18 Composition C19 C20 C20 C21 C22 C22 Thermal processing temperature (°C) 575 575 575 575 575 575 Thermal processing time (hours) 2 8 2 8 8 2 L* 89.96 86.7 86.9 85.72 90.59 90.98 a* 4.42 8.49 8.50 8.98 5.51 4.33 b* -0.06 9.06 6.59 10.40 4.77 1.19 observable color Pink orange orange orange orange red

Continuation form 2 Glass product A19 A20 A21 A22 A23 A24 Composition C23 C23 C15 C16 C17 C18 Thermal processing temperature (°C) 575 575 600 600 600 600 Thermal processing time (hours) 2 8 2 2 2 2 L* 96.73 95.89 82.63 83 83.43 88.03 a* 0.03 0.63 3.35 4.27 5.48 8.35 b* 0.75 1.84 -6.62 -6.11 -5.49 4.10 observable color yellow peach Purple Purple Purple orange

Continuation form 2 Glass product A25 A26 A27 A28 A29 A30 Composition C19 C20 C22 C23 C2 C3 Thermal processing temperature (°C) 600 600 600 600 625 625 Thermal processing time (hours) 2 2 2 2 2 2 L* 87.99 86.66 90.23 96.4 89.29 87.6 a* 8.34 8.91 5.53 0.28 5.14 7.22 b* 5.45 8.48 3.52 1.24 9.97 10.51 observable color orange orange orange light orange orange red

Continuation form 2 Glass product A31 A32 A33 A34 A35 A36 Composition C4 C5 C6 C7 C8 C9 Thermal processing temperature (°C) 625 625 625 625 625 625 Thermal processing time (hours) 2 2 2 2 2 2 L* 83 86.74 88.94 87.28 78.03 80.49 a* 11.39 9.76 6.92 9.09 5.04 6.25 b* 2.59 2.60 4.75 3.44 -9.39 -8.92 observable color red red red red Purple Purple

Continuation form 2 Glass product A37 A38 A39 A40 A41 A42 Composition C15 C16 C17 C18 C19 C20 Thermal processing temperature (°C) 625 625 625 625 625 625 Thermal processing time (hours) 2 2 2 2 2 2 L* 84.25 85.21 85.58 87.5 87.39 86.09 a* 10.89 10.87 10.81 8.98 8.76 9.27 b* -0.89 0.55 0.90 4.56 5.39 8.00 observable color magenta red red orange orange orange

Continuation form 2 Glass product A43 A44 A45 A46 A47 A48 Composition C22 C23 C15 C16 C17 C18 Thermal processing temperature (°C) 625 625 650 650 650 650 Thermal processing time (hours) 2 2 2 2 2 2 L* 90.31 95.7 84.63 85.69 86.23 87.42 a* 5.73 0.89 11.19 11.18 10.85 9.14 b* 3.85 1.49 -0.12 1.22 1.47 4.40 observable color orange orange magenta red red orange

Continuation form 2 Glass product A49 A50 A51 A52 Composition C19 C20 C22 C23 Thermal processing temperature (°C) 650 650 650 650 Thermal processing time (hours) 2 2 2 2 L* 87.42 86.18 90.14 95.53 a* 8.84 9.28 6.00 1.04 b* 5.24 8.10 3.89 1.42 observable color orange orange orange orange

Referring now to Table 3, exemplary glass articles A53-A114 formed from exemplary compositions C1-C14 and C24-C26 shown in Table 1 were subjected to thermal processing at the temperatures and time periods shown in Table 3. Table 3 shows the observable color of the resulting colored glass articles.

table 3 Glass product A53 A54 A55 A56 A57 A58 Composition C1 C2 C3 C4 C5 C6 Thermal processing temperature (°C) 550 550 550 550 550 550 Thermal processing time (hours) 2 2 2 2 2 2 observable color red clear, red clear, red clear clear red

Continuation from Table 3 Glass product A59 A60 A61 A62 A63 A64 Composition C7 C8 C9 C10 C11 C12 Thermal processing temperature (°C) 550 550 550 550 550 550 Thermal processing time (hours) 2 2 2 2 2 2 observable color red clear clear, pink clear clear clear

Continuation from Table 3 Glass product A65 A66 A67 A68 A69 A70 Composition C13 C14 C24 C1 C2 C3 Thermal processing temperature (°C) 550 550 550 575 575 575 Thermal processing time (hours) 2 2 8 2 2 2 observable color clear clear, purple Purple orange orange red

Continuation from Table 3 Glass product A71 A72 A73 A74 A75 A76 Composition C4 C5 C6 C7 C8 C9 Thermal processing temperature (°C) 575 575 575 575 575 575 Thermal processing time (hours) 2 2 2 2 2 2 observable color Purple Purple red red clear, red clear, pink

Continuation from Table 3 Glass product A77 A78 A79 A80 A81 A82 Composition C10 C11 C12 C13 C14 C24 Thermal processing temperature (°C) 575 575 575 575 575 575 Thermal processing time (hours) 2 2 2 2 2 2 observable color clear, purple clear, purple clear, purple clear, purple clear, red Purple

Continuation from Table 3 Glass product A83 A84 A85 A86 A87 A88 Composition C25 C26 C24 C25 C1 C2 Thermal processing temperature (°C) 575 575 575 575 600 600 Thermal processing time (hours) 2 2 8 8 2 2 observable color Purple red red red orange orange

Continuation from Table 3 Glass product A89 A90 A91 A92 A93 A94 Composition C3 C4 C5 C6 C7 C8 Thermal processing temperature (°C) 600 600 600 600 600 600 Thermal processing time (hours) 2 2 2 2 2 2 observable color red Purple Purple red red Purple

Continuation from Table 3 Glass product A95 A96 A97 A98 A99 A100 Composition C9 C10 C11 C12 C13 C14 Thermal processing temperature (°C) 600 600 600 600 600 600 Thermal processing time (hours) 2 2 2 2 2 2 observable color Purple Purple Purple Purple Purple orange

Continuation from Table 3 Glass product A101 A102 A103 A104 A105 A106 Composition C24 C25 C26 C24 C25 C26 Thermal processing temperature (°C) 600 600 600 625 625 625 Thermal processing time (hours) 2 2 2 2 2 2 observable color Purple red red red red red

Continuation from Table 3 Glass product A107 A108 A109 A110 A111 A112 Composition C10 C11 C12 C13 C14 C24 Thermal processing temperature (°C) 650 650 650 650 650 650 Thermal processing time (hours) 2 2 2 2 2 2 observable color Purple Purple clear, purple Purple orange red

Continuation from Table 3 Glass product A113 A114 Composition C25 C26 Thermal processing temperature (°C) 650 650 Thermal processing time (hours) 2 2 observable color red red

Referring now to Figures 3 and 4, _{the Figures show R2O-Al2O3 versus a} * and b*, respectively, for exemplary glass articles A29-A44. As shown in Figure 3, the a* system is positive regardless of the R ₂ O—Al ₂ O ₃ value, resulting in observable colors towards the red side of the CIELAB color space. As shown in Figure 4, as _R2O - _Al2O3 increases, b* increases, shifting the observable color from _blue to yellow. For example, exemplary _glass articles A35 and A36 formed from exemplary compositions C8 and C9 having 0.07 mol% and 0.04 mol% analyzed _R2O - _Al2O3 respectively have -9.39 and -9.39 and - A b* of 8.92 resulted in an observable purple glass. Exemplary glass articles A29 and A30 formed from exemplary glass compositions C2 and C3 having 2.98 mol % and 2.02 mol % analyzed R ₂ O—Al ₂ O ₃ , respectively, had b* of 9.97 and 10.51, respectively, This results in observable orange glazing and observable red glazing.

In addition, exemplary glass articles A33 and A34 formed from exemplary glass compositions C6 and C7 including Fe ₂ O ₃ and ZrO ₂ , respectively, had an observable red color.

As shown in Table 2 and Table 4 and Figure 3 and Figure 4, the analyzed R ₂ O-Al ₂ O ₃ can be adjusted, other components can be added to the glass composition, and the glass product can withstand certain heat Processed to provide the desired colored glass products.

Those of ordinary skill in the art will understand that various modifications and changes to the embodiments described herein can be made without departing from the spirit and scope of the claimed subject matter. Thus, it is intended that the present disclosure cover modifications and variations of the various embodiments presented herein which come within the scope of the patent claims and their equivalents.

100: Consumer Electronics 102: Shell 104: front surface 106: rear surface 108: side surface 110: Display 112: cover substrate

Figure 1 is a plan view of an electronic device incorporating any of the colored glass articles according to one or more embodiments described herein;

Figure 2 is a perspective view of the electronic device of Figure 1;

Figure 3 is R ₂ O—Al ₂ O ₃ versus a*CIELAB space (x-axis: R ₂ O—Al ₂ O ₃ ; y-axis: graph of a*); and

Figure 4 is R ₂ O—Al ₂ O ₃ versus b*CIELAB space (x-axis: R ₂ O—Al ₂ O ₃ ; y-axis: graph of b*).

Domestic deposit information (please note in order of depositor, date, and number) none Overseas storage information (please note in order of storage country, institution, date, and number) none

100: Consumer Electronics

102: shell

104: front surface

106: rear surface

108: side surface

110: Display

112: cover substrate

Claims (10)

A colored glass article comprising: greater than or equal to 50 mol % and less than or equal to 80 mol % of SiO ₂ ; greater than or equal to 7 mol % and less than or equal to 25 mol % of Al ₂ O ₃ ; greater than or equal to or equal to 1 mol% and less than or equal to 15 mol% of _B2O3 ; greater than or equal to 7 mol% and less than or equal to 20 mol% _{of Li2O} ; greater than or equal to 0.5 mol% and Less than or equal to 12 mol% of Na ₂ O; greater than 0 mol% and less than or equal to 1 mol% of K ₂ O; and greater than or equal to 1× ^10-6 mol% and less than or equal to 1 Mole % of Au, wherein: R ₂ O-Al ₂ O ₃ is greater than or equal to -5 mol % and less than or equal to 5 mol %, R ₂ O is Li ₂ O, Na ₂ O, and K The sum of ₂ O. The colored glass article of claim 1, wherein the colored glass article has a transmission color coordinate in the CIELAB color space measured at an article thickness of 1.33 mm under F2 illumination and a standard observer angle of 10°, wherein : L* is greater than or equal to 50 and less than or equal to 100; a* is greater than or equal to -15 and less than or equal to 25; and b* is greater than or equal to -25 and less than or equal to 25. The colored glass product according to claim 1 or 2, wherein the colored glass product contains Au greater than or equal to 0.0001 mol% and less than or equal to 0.1 mol%. The colored glass product according to claim 1 or 2, wherein the colored glass product contains ZrO ₂ greater than or equal to 0.01 mol % and less than or equal to 2 mol %. The colored glass product according to claim 1 or 2, wherein the colored glass product contains Fe ₂ O ₃ greater than or equal to 0.01 mol % and less than or equal to 1 mol %. The colored glass article as claimed in claim 1 or 2, wherein it is an ion-exchanged colored glass article, the ion-exchanged colored glass article has a thickness "t", a compression depth greater than or equal to 0.15t, greater than Or a surface compressive stress equal to 300MPa, and a maximum central tensile force greater than or equal to 40MPa. A glass composition comprising: greater than or equal to 50 mol % and less than or equal to 80 mol % of SiO ₂ ; greater than or equal to 7 mol % and less than or equal to 25 mol % of Al ₂ O ₃ ; greater than or equal to or equal to 1 mol% and less than or equal to 15 mol% of _B2O3 ; greater than or equal to 7 mol% and less than or equal to 20 mol% _{of Li2O} ; greater than or equal to 0.5 mol% and Less than or equal to 12 mol% of Na ₂ O; greater than 0 mol% and less than or equal to 1 mol% of K ₂ O; and greater than or equal to 1× ^10-6 mol% and less than or equal to 1 Mole % of Au, wherein: R ₂ O-Al ₂ O ₃ is greater than or equal to -5 mol % and less than or equal to 5 mol %, R ₂ O is Li ₂ O, Na ₂ O, and K The sum of ₂ O. The glass composition according to claim 7, wherein the glass composition contains ZrO ₂ greater than or equal to 0.01 mol % and less than or equal to 2 mol %. The glass composition according to claim 7 or 8, wherein the glass composition contains Fe ₂ O ₃ greater than or equal to 0.01 mol % and less than or equal to 1 mol %. A method of forming a colored glass article, the method comprising the steps of: thermally processing a glass composition to form a glass article, the glass composition comprising: greater than or equal to 50 mole % and less than or equal to 80 mole % mol% of SiO ₂ ; greater than or equal to 7 mol% and less than or equal to 25 mol% of Al ₂ O ₃ ; greater than or equal to 1 mol% and less than or equal to 15 mol% of B ₂ O ₃ ; Greater than or equal to 7 mol% and less than or equal to 20 mol% of _Li2O ; greater than or equal to 0.5 mol% and less than or equal to 12 mol% of _Na2O ; greater than 0 mol% and less than or K ₂ O equal to 1 mol %; and Au greater than or equal to 1×10 ⁻⁶ mol % and less than or equal to 1 mol %, wherein: R ₂ O—Al ₂ O ₃ is greater than or equal to— 5 mol% and less than or equal to 5 mol%, R ₂ O is the sum of Li ₂ O, Na ₂ O, and K ₂ O; The glass article is subjected to a thermal processing cycle at a temperature and a duration of greater than or equal to 0.25 hours and less than or equal to 24 hours to produce the colored glass article.

Images