CN103663973A - Jade-like microcrystalline glass - Google Patents
Jade-like microcrystalline glass Download PDFInfo
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- CN103663973A CN103663973A CN201310661966.5A CN201310661966A CN103663973A CN 103663973 A CN103663973 A CN 103663973A CN 201310661966 A CN201310661966 A CN 201310661966A CN 103663973 A CN103663973 A CN 103663973A
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- devitrified glass
- jade
- oxide
- jade shape
- shape devitrified
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Abstract
The invention provides a jade-like microcrystalline glass. The jade-like microcrystalline glass comprises following ingredients, by weight, 50%<=silicon dioxide<56%, 0<=aluminum oxide<1%, 15%<=calcium oxide<18%, 1%<=boron oxide<2%, 8%<potassium oxide<=10%, 0<zinc oxide<=4%, 2%<fluorine<=5%, and the balance sodium oxide. The jade-like microcrystalline glass looks like semitransparent jade; possesses smooth feel and wax feel of natural jade; is high in toughness and strength; is convenient for further machine shaping; and can be widely used in the fields of substitute goods of high-grade stone.
Description
Technical field
The present invention relates to glass-ceramic field, particularly a kind of jade shape devitrified glass.
Background technology
Along with Chinese national economy is stablized sustainable development, people's living standard improves thereupon, demand expanding day to high-grade material, particularly more urgent to the substitute products demand of radiationless high-grade stone material, but the substitute products fragility of domestic high-grade stone material is large, be not easy machine-shaping, cause a lot of high-grade stone materials need to be from external import, cost greatly promotes.
Devitrified glass is called again glass-ceramic, has glass and ceramic dual nature, and devitrified glass is by crystal composition, and its atomic arrangement is regular, and therefore, devitrified glass is higher than ceramic brightness, and stronger than glass toughness.Devitrified glass has been concentrated triple advantages of glass, pottery and lithotome, be better than lithotome and pottery, can be used for building curtain wall and indoor high-grade decoration, also can do structured material mechanically, insulating material on electronics, electrician, the baseboard material of large-scale integrated circuit, the heat-resisting row vessel of microwave oven, chemical industry and impregnating material and mine high-abrasive material etc., become the substitute products of desirable high-grade stone material.
Existing devitrified glass exist tone single, there is no texture, apparent porosity is high and fragility is large, is not easy the shortcomings such as machine-shaping, causes devitrified glass to utilize space little, share of market is low, severe inhibition the development of devitrified glass industry.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of good toughness, jade shape devitrified glass that intensity is high.
For solving the problems of the technologies described above, jade shape devitrified glass provided by the invention comprises following composition by weight percentage: 50%≤silicon-dioxide < 56%, 0≤aluminum oxide < 1%, 15%≤calcium oxide < 18%, 1%≤boron oxide≤2%, 8% < potassium oxide≤10%, 0 < zinc oxide≤4%, 2% < fluorine≤5%, surplus is sodium oxide.
Each composition at jade shape devitrified glass provided by the invention limits as follows by weight percentage:
Silicon-dioxide is given chemical stability and the thermostability that devitrified glass is good, can improve the intensity of devitrified glass, reduce the coefficient of expansion of devitrified glass, but along with content increases, can cause the viscosity of glass metal to increase, the glass melting temperature of devitrified glass raises, so the content of silicon-dioxide is set as: 50%≤silicon-dioxide < 56%.
Aluminum oxide can reduce the tendency towards devitrification of devitrified glass, improve chemical stability and physical strength and hardness, improve thermostability, reduce electrical insulating property, but along with the lifting of alumina content, can cause devitrified glass surface to produce striped, and can improve the viscosity of glass metal, make fusing and clarification that difficulty occur, increase on the contrary tendency towards devitrification, so the content of aluminum oxide is set as: 0≤aluminum oxide < 1%.
Calcium oxide can reduce the high temperature viscosity of glass metal, promotes fusing and the clarification of glass metal, increase chemical stability, physical strength and the hardness of devitrified glass, so the content of calcium oxide is set as: 15%≤calcium oxide < 18%.
Boron oxide can reduce the thermal expansivity of devitrified glass, improves thermostability, and the high-temperature viscosity of cooling glass metal, so the content of boron oxide is set as: 1%≤boron oxide≤2%.
Potassium oxide is good solubility promoter, can improve the glossiness of devitrified glass, promotes fusing and the clarification of glass metal, can also reduce the viscosity of glass metal, so the content of potassium oxide is set as: 8% < potassium oxide≤10%.
Zinc oxide can improve the chemical stability of devitrified glass, reduces the thermal expansivity of devitrified glass, but along with the increase of zinc oxide content, can increase ceramics tendency, so the content of zinc oxide is set as: 0 < zinc oxide≤4%.
Fluorine is a kind of good opacifying agent, and during fluorine too high levels, the chemical stability of devitrified glass reduces, easy devitrification, so the content of fluorine is set as: 2% < fluorine≤5%.
Sodium oxide can reduce the viscosity of glass metal, promote fusing and the clarification of glass metal, so the remaining composition of devitrified glass is set as sodium oxide.
Jade shape devitrified glass of the present invention is not introduced the magnesium oxide that can improve annealing temperature, the composition proportion of the high potassium of the low aluminium of its low silicon can effectively reduce the apparent porosity of jade shape devitrified glass, improve impelling strength and anti-folding, ultimate compression strength, strengthen machine-shaping property, the perception of this jade shape devitrified glass presents translucent beautiful matter shape, has moist degree and the wax sense of natural jade.
Preferably, the main crystalline phase of jade shape devitrified glass of the present invention is Na
4～3k
2～3ca
5(Si
12o
30) F
4, belong to SiO
2-CaO-R
2o-F P series glass, this crystalline phase is lath-shaped, has greatly improved toughness and the bending and compressive strength of jade shape devitrified glass, and is easy to processing cutting.
Preferably, the impelling strength of described jade shape devitrified glass is 5.0kj/cm
3～5.6kj/cm
3.
Preferably, the Mohs' hardness of described jade shape devitrified glass is 6.5～7.5.
Preferably, the folding strength of described jade shape devitrified glass is 65MPa～80MPa.
Preferably, the ultimate compression strength of described jade shape devitrified glass is 600MPa～800MPa.
Preferably, the visible light transmissivity of described jade shape devitrified glass is 30%～40%.
Jade shape devitrified glass perception provided by the invention presents translucent beautiful matter shape, has moist degree and the wax sense of natural jade, and good toughness, intensity are high, and easily further machine-shaping can be widely used in the fields such as substitute of high-grade stone material.
Embodiment
For above-mentioned purpose, the feature and advantage of invention can be become apparent more, below the specific embodiment of the present invention is described in detail.
A lot of details have been set forth in the following description so that fully understand the present invention, but the present invention can also adopt other to be different from alternate manner described here and implement, those skilled in the art can do similar popularization without prejudice to intension of the present invention in the situation that, so the present invention is not subject to the restriction of following public specific embodiment.
Table 1 is the performance perameter table of jade shape devitrified glass under heterogeneity forms.
Knowing under the condition of concrete component content, by methods known in the art, can make jade shape devitrified glass of the present invention, preferably preparation as follows:
1, one or more in selection quartz sand, fluorite, aluminum oxide, calcite, soda ash, salt of wormwood, SODIUMNITRATE, boric acid, zinc oxide provide the one-tenth of jade shape devitrified glass to be grouped into as raw material, the composition proportion of pressing embodiment in table 1 is calculated the consumption of raw material, after weighing, be mixed to get basestocks, to those skilled in the art, prepare jade shape devitrified glass raw material used and be not limited only to above-mentioned disclosed raw material, also can select the conventional raw materials such as potassium felspar sand or Wingdale;
2, basestocks is melted to 12h～16h at 1400 ℃～1500 ℃, after clarification, obtain glass metal;
3, put into mould after glass metal being made to the particle of 2mm～5mm;
4, the mould that particle is housed is incubated to 2h～4h after 8h～12h is warming up to 1000 ℃～1080 ℃, being incubated 2h～4h after being cooled to 800 ℃～860 ℃ carries out crystallization processing, more at the uniform velocity annealing makes jade shape devitrified glass.
As shown in table 1, jade shape devitrified glass of the present invention has higher anti-folding and ultimate compression strength, and hardness is high, and impelling strength is strong, and visible light transmissivity and natural jade are similar.Finished product jade shape devitrified glass has moist degree and the wax sense of natural jade, can be prepared into the section bar of different size to facilitate processing.
Table 1
Although the present invention is described in conjunction with above embodiment, but the present invention is not defined to above-described embodiment, and being only subject to the restriction of claims, those of ordinary skills can easily modify to it and change, but do not leave essence design of the present invention and scope.
Claims (7)
1. a jade shape devitrified glass, it is characterized in that, comprise by weight percentage following composition: 50%≤silicon-dioxide < 56%, 0≤aluminum oxide <, 1%, 15%≤calcium oxide <, 18%, 1%≤boron oxide≤2%, 8% < potassium oxide≤10%, 0 < zinc oxide≤4%, 2% < fluorine≤5%, surplus is sodium oxide.
2. jade shape devitrified glass according to claim 1, is characterized in that, the main crystalline phase of described jade shape devitrified glass is Na
4～3k
2～3ca
5(Si
12o
30) F
4.
3. jade shape devitrified glass according to claim 1, is characterized in that, the impelling strength of described jade shape devitrified glass is 5.0kj/cm
3～5.6kj/cm
3.
4. jade shape devitrified glass according to claim 1, is characterized in that, the Mohs' hardness of described jade shape devitrified glass is 6.5～7.5.
5. jade shape devitrified glass according to claim 1, is characterized in that, the folding strength of described jade shape devitrified glass is 65MPa～80MPa.
6. jade shape devitrified glass according to claim 1, is characterized in that, the ultimate compression strength of described jade shape devitrified glass is 600MPa～800MPa.
7. jade shape devitrified glass according to claim 1, is characterized in that, the visible light transmissivity of described jade shape devitrified glass is 30%～40%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310661966.5A CN103663973A (en) | 2013-12-06 | 2013-12-06 | Jade-like microcrystalline glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310661966.5A CN103663973A (en) | 2013-12-06 | 2013-12-06 | Jade-like microcrystalline glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103663973A true CN103663973A (en) | 2014-03-26 |
Family
ID=50302876
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310661966.5A Pending CN103663973A (en) | 2013-12-06 | 2013-12-06 | Jade-like microcrystalline glass |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4386162A (en) * | 1981-10-05 | 1983-05-31 | Corning Glass Works | Alkali metal, calcium fluorosilicate glass-ceramic articles |
| DE4125698C1 (en) * | 1991-08-02 | 1992-11-26 | Schott Glaswerke, 6500 Mainz, De | Glass ceramic material for replacing granite or marble in decorative applications - contains silica, alumina, calcia, magnesia, zirconia, barium oxide, potassium oxide, sodium oxide and fluorine |
| US5434111A (en) * | 1992-04-10 | 1995-07-18 | Schott Glaswerke | Lead- and barium-free crystal glass having high optical transmission |
| CN1160687A (en) * | 1996-03-30 | 1997-10-01 | 大连理工大学 | Fast-microcrystallized devitrified agrellite glass and its production process |
| CN101805128A (en) * | 2010-04-20 | 2010-08-18 | 香港福山实业有限公司 | Jade-type glass-ceramic and preparation method thereof |
-
2013
- 2013-12-06 CN CN201310661966.5A patent/CN103663973A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4386162A (en) * | 1981-10-05 | 1983-05-31 | Corning Glass Works | Alkali metal, calcium fluorosilicate glass-ceramic articles |
| DE4125698C1 (en) * | 1991-08-02 | 1992-11-26 | Schott Glaswerke, 6500 Mainz, De | Glass ceramic material for replacing granite or marble in decorative applications - contains silica, alumina, calcia, magnesia, zirconia, barium oxide, potassium oxide, sodium oxide and fluorine |
| US5434111A (en) * | 1992-04-10 | 1995-07-18 | Schott Glaswerke | Lead- and barium-free crystal glass having high optical transmission |
| CN1160687A (en) * | 1996-03-30 | 1997-10-01 | 大连理工大学 | Fast-microcrystallized devitrified agrellite glass and its production process |
| CN101805128A (en) * | 2010-04-20 | 2010-08-18 | 香港福山实业有限公司 | Jade-type glass-ceramic and preparation method thereof |
Non-Patent Citations (7)
| Title |
|---|
| 戴金辉等主编: "《无机非金属材料工学》", 31 August 2012, 哈尔滨工业大学出版社 * |
| 田英良等主编: "《新编玻璃工艺学》", 30 June 2009, 中国轻工业出版社 * |
| 程金树等: "《K2O对 R2O-CaO-SiO2-F微晶玻璃析晶的影响》", 《武汉理工大学学报》 * |
| 程金树等: "《氟对R2O-CaO-SiO2-F 系统微晶玻璃析晶及性能》", 《 中国硅酸盐学会玻璃分会2009年全国玻璃科学技术年会论文集 》 * |
| 程金树等: "《氧化钙对R2O-CaO-SiO2-F系统微晶玻璃析晶和性能的影响》", 《中国硅酸盐学会玻璃分会2009年全国玻璃科学技术年会论文集》 * |
| 章为夷等: "《氟硅酸盐玻璃陶瓷—组织、制备和性能》", 31 December 2011 * |
| 赵彦钊等主编: "《玻璃工艺学》", 30 September 2006, 化学工业出版社 * |
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Application publication date: 20140326 |