CN105088124A - Thermal barrier coating with high bonding strength and preparation method thereof - Google Patents
Thermal barrier coating with high bonding strength and preparation method thereof Download PDFInfo
- Publication number
- CN105088124A CN105088124A CN201510495173.XA CN201510495173A CN105088124A CN 105088124 A CN105088124 A CN 105088124A CN 201510495173 A CN201510495173 A CN 201510495173A CN 105088124 A CN105088124 A CN 105088124A
- Authority
- CN
- China
- Prior art keywords
- barrier coating
- thermal barrier
- thermal
- bond strength
- coating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Coating By Spraying Or Casting (AREA)
Abstract
The invention discloses a thermal barrier coating with high bonding strength. Aluminum powder is added, and after high-temperature calcination modification is conducted, the antioxygenic property of a ceramic phase and the permeability of matrix metal can be improved. Partial particles are not sufficiently fused in a plasma jet in the spraying process, the deformation degree is slightly weak when the particles impact on a matrix, a jointly-overlapped porous structure can be easily formed, and the thermal insulation property of the coating is improved. In addition, by means of a modification method, Zr<4+> is replaced with Y<3+> and Ce<4+> in zirconium dioxide crystal lattices, oxygen vacancies and local stress fields are produced, the phonon scattering in the crystal lattices is increased, and the thermal conductivity is significantly decreased; the atomic mass of solid solution atoms Ce is far larger than that of Y, the scattering intensity of phonons in the thermal barrier coating can be significantly improved, and therefore the thermal conductivity is decreased. The prepared thermal barrier coating is excellent in comprehensive performance, excellent in thermal insulating performance, high in bonding strength and long in thermal cycling life and thermal shock life.
Description
Technical field
The present invention relates to Machining of Ceramics technical field, be specifically related to a kind of high bond strength thermal barrier coating and preparation method thereof.
Background technology
Along with aero-gas turbine is to high flow capacity ratio, high thrust-weight ratio, high air inlet temperature future development, the working temperature in combustion chamber is considerably beyond the use temperature limit of Ni based high-temperature alloy.Prepare thermal barrier coating at superalloy matrix surface, holding warm ability to raising matrix has very directly effect, thus effectively improves the working temperature of part, increases the service life.
It is a kind ofly utilize the material that thermal conductivity is relatively low that thermal barrier coating leads to, and is coated on superalloy matrix surface thus plays the functional coating of heat-blocking action by suitable technology.Typical thermal barrier coating is made up of superalloy matrix, metal bonding coating and top heat insulating ceramic coat.Wherein, superalloy matrix mainly bears mechanical load; Tack coat mainly works to improve matrix and ceramic coating physical compatibility and antioxidant anticorrosive; Top ceramic layer Main Function is isolated heat and produces thermograde, and its heterogeneous microstructure plays a crucial role to the heat-proof quality of thermal barrier coating and work-ing life.But when thermal barrier coating is applied to the working temperature day by day increased, harsher Working environment will be faced, the obtained thermal barrier coating of prior art exist easily undergo phase transition, oxidation-resistance is low, intensity is little, poor high temperature stability, easily produce the defects such as high temperature corrosion, is difficult to meet the needs that turbine intake temperature improves further.Therefore, the focus that better heat-proof quality and good stability, elevated temperature corrosion resistant are excellent under the high temperature conditions novel heat barrier coat material become thermal barrier coating area research is in recent years found.
Summary of the invention
Object of the present invention is just to provide a kind of high bond strength thermal barrier coating and preparation method thereof, to overcome the deficiencies in the prior art.
The object of the present invention is achieved like this:
A kind of high bond strength thermal barrier coating, it is characterized in that, be made up of the raw material of following weight part: cerium oxide 30-32, zirconium dioxide 20-23, yttrium oxide 34-37, nanometer silicon carbide 0.7-0.9, aluminium powder 6.8-8.3, polyamide wax micropowder 11-13, NiCoCrAlYTa alloy powder 72-80, bauxitic clay 20-23, petroleum resin 5-7, tetrabutyl titanate 2-4.
The preparation method of described a kind of high bond strength thermal barrier coating, is characterized in that comprising the following steps:
(1) by nanometer silicon carbide, NiCoCrAlYTa alloy powder in 770-860 DEG C of pyroprocessing 30-50 minute, be cooled to room temperature rapidly, add polyamide wax micropowder ultrasonic grinding 20-40 minute, be heated to melting, stir 5-8h, under vacuum atmosphere, condensation is shaping, obtained modified metal tack coat of pulverizing;
(2) join in ball mill by aluminium powder, the petroleum resin spraying into molten state are mixed thoroughly, add tetrabutyl titanate, carry out ball milling, mix, break up obtained modified aluminium powder under normal temperature;
(3) by modified aluminium powder, cerium oxide, zirconium dioxide, yttrium oxide through 1520-1610 DEG C of high-temperature calcination 2-4 hour, cooling adds other remaining component and is ground to 200-300 order, obtained modified ceramic powder;
(4) by superalloy matrix after ultrasonic oil removing, sandblasting pre-treatment, by electron thermal explosion method by step (1) material even application on superalloy matrix;
(5) finally by air plasma spraying method, the spraying current of 500A is adopted to be deposited on metal bonding coating by obtained for step (3) modified ceramic powder.
The present invention has following beneficial effect: the thermal barrier coating that the present invention obtains is compared with traditional thermal barrier coating, add aluminium powder and improve the antioxidant property of ceramic phase and the perviousness with matrix metal through high-temperature calcination is modified, and some particles melts insufficient in plasma jet in spraying process, when clashing into matrix, deformation extent is slightly weak, the vesicular structure that easy formation overlaps, improve the thermal insulation of coating, secondly the present invention is by method of modifying, Y in zirconium dioxide lattice
3+, Ce
4+replace Zr
4+create the stress field of Lacking oxygen and local, add the phon scattering in lattice, thermal conductivity obviously reduces, and the nucleidic mass of solid solution atom Ce is far longer than the nucleidic mass of Y, can significantly improve the scattering strength of the phonon in product of the present invention, thus reduce thermal conductivity, properties of coating prepared by the present invention is superior, has excellent thermal insulation performance, high bond strength, high thermal cycle life and thermal shock life.
Embodiment
Described a kind of high bond strength thermal barrier coating, it is characterized in that, be made up of the raw material of following weight part: cerium oxide 30, zirconium dioxide 20, yttrium oxide 34, nanometer silicon carbide 0.7, aluminium powder 6.8, polyamide wax micropowder 11, NiCoCrAlYTa alloy powder 72, bauxitic clay 20, petroleum resin 6, tetrabutyl titanate 4.
Making method comprises the following steps:
(1) by nanometer silicon carbide, NiCoCrAlYTa alloy powder in 770-860 DEG C of pyroprocessing 30-50 minute, be cooled to room temperature rapidly, add polyamide wax micropowder ultrasonic grinding 20-40 minute, be heated to melting, stir 5-8h, under vacuum atmosphere, condensation is shaping, obtained modified metal tack coat of pulverizing;
(2) join in ball mill by aluminium powder, the petroleum resin spraying into molten state are mixed thoroughly, add tetrabutyl titanate, carry out ball milling, mix, break up obtained modified aluminium powder under normal temperature;
(3) by modified aluminium powder, cerium oxide, zirconium dioxide, yttrium oxide through 1520-1610 DEG C of high-temperature calcination 2-4 hour, cooling adds other remaining component and is ground to 200-300 order, obtained modified ceramic powder;
(4) by superalloy matrix after ultrasonic oil removing, sandblasting pre-treatment, by electron thermal explosion method by step (1) material even application on superalloy matrix;
(5) finally by air plasma spraying method, the spraying current of 500A is adopted to be deposited on metal bonding coating by obtained for step (3) modified ceramic powder.
The technical parameter index of the thermal barrier coating using the present invention to produce is as follows:
(1) coating porosity: 17.9%;
(2) record coating cross sections through metaloscope and have more closed hole and vertical micro--crack;
(3) temperature head by measuring coatingsurface and the sample back side calculates the heat-proof quality of coating, and increase rate has been up to about 51.9%.
Claims (4)
1. a high bond strength thermal barrier coating, it is characterized in that, be made up of the raw material of following weight part: cerium oxide 30-32, zirconium dioxide 20-23, yttrium oxide 34-37, nanometer silicon carbide 0.7-0.9, aluminium powder 6.8-8.3, polyamide wax micropowder 11-13, NiCoCrAlYTa alloy powder 72-80, bauxitic clay 20-23, petroleum resin 5-7, tetrabutyl titanate 2-4.
2. the making method of a kind of high bond strength thermal barrier coating according to claim 1, is characterized in that comprising the following steps:
(1) by nanometer silicon carbide, NiCoCrAlYTa alloy powder in 770-860 DEG C of pyroprocessing 30-50 minute, be cooled to room temperature rapidly, add polyamide wax micropowder ultrasonic grinding 20-40 minute, be heated to melting, stir 5-8h, under vacuum atmosphere, condensation is shaping, obtained modified metal tack coat of pulverizing;
(2) join in ball mill by aluminium powder, the petroleum resin spraying into molten state are mixed thoroughly, add tetrabutyl titanate, carry out ball milling, mix, break up obtained modified aluminium powder under normal temperature;
(3) by modified aluminium powder, cerium oxide, zirconium dioxide, yttrium oxide through 1520-1610 DEG C of high-temperature calcination 2-4 hour, cooling adds other remaining component and is ground to 200-300 order, obtained modified ceramic powder;
(4) by superalloy matrix after ultrasonic oil removing, sandblasting pre-treatment, by electron thermal explosion method by step (1) material even application on superalloy matrix;
(5) finally by air plasma spraying method, the spraying current of 500A is adopted to be deposited on metal bonding coating by obtained for step (3) modified ceramic powder.
3. the making method of a kind of high bond strength thermal barrier coating according to claim 2, is characterized in that, described metal bonding coating coating thickness is 100 μm, and ceramic layer coats thickness is 300 μm.
4. the making method of a kind of high bond strength thermal barrier coating according to claim 2, is characterized in that, described superalloy matrix is K4169 superalloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510495173.XA CN105088124A (en) | 2015-08-13 | 2015-08-13 | Thermal barrier coating with high bonding strength and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510495173.XA CN105088124A (en) | 2015-08-13 | 2015-08-13 | Thermal barrier coating with high bonding strength and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105088124A true CN105088124A (en) | 2015-11-25 |
Family
ID=54569441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510495173.XA Pending CN105088124A (en) | 2015-08-13 | 2015-08-13 | Thermal barrier coating with high bonding strength and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105088124A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105441854A (en) * | 2015-12-18 | 2016-03-30 | 合肥中澜新材料科技有限公司 | Thermal oxidization resistant engine cylinder inner wall abrasion resistant coating and preparation method thereof |
| CN109437892A (en) * | 2018-11-27 | 2019-03-08 | 陈涛 | A kind of zirconia ceramics coating and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1584297A (en) * | 2003-06-06 | 2005-02-23 | 通用电气公司 | Top coating system for industrial turbine nozzle airfoils and other hot gas path components and related method |
| CN101660115A (en) * | 2009-09-18 | 2010-03-03 | 武汉理工大学 | Preparation method of nanometer zirconia heat barrier coating |
| CN102351545A (en) * | 2011-04-07 | 2012-02-15 | 世林（漯河）冶金设备有限公司 | High temperature heat barrier material, coating, molded product and application thereof |
| CN103668191A (en) * | 2013-12-09 | 2014-03-26 | 广州有色金属研究院 | Preparation method for thermal-barrier coating |
-
2015
- 2015-08-13 CN CN201510495173.XA patent/CN105088124A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1584297A (en) * | 2003-06-06 | 2005-02-23 | 通用电气公司 | Top coating system for industrial turbine nozzle airfoils and other hot gas path components and related method |
| CN101660115A (en) * | 2009-09-18 | 2010-03-03 | 武汉理工大学 | Preparation method of nanometer zirconia heat barrier coating |
| CN102351545A (en) * | 2011-04-07 | 2012-02-15 | 世林（漯河）冶金设备有限公司 | High temperature heat barrier material, coating, molded product and application thereof |
| CN103668191A (en) * | 2013-12-09 | 2014-03-26 | 广州有色金属研究院 | Preparation method for thermal-barrier coating |
Non-Patent Citations (1)
| Title |
|---|
| 吴子健等: "《热喷涂技术与应用》", 31 January 2006, 机械工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105441854A (en) * | 2015-12-18 | 2016-03-30 | 合肥中澜新材料科技有限公司 | Thermal oxidization resistant engine cylinder inner wall abrasion resistant coating and preparation method thereof |
| CN109437892A (en) * | 2018-11-27 | 2019-03-08 | 陈涛 | A kind of zirconia ceramics coating and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102041499B (en) | Molybdenum disilicide composite coating and preparation method thereof | |
| JP4959789B2 (en) | Turbine component and tungsten bronze structure ceramic coating material | |
| CN101405423A (en) | Heat shield coating member, process for producing the same, heat shield coat material, gas turbine and sintered body | |
| JP5296421B2 (en) | Thermally sprayed airtight protective layer for metal base material, spray powder for manufacturing protective layer, method for manufacturing protective layer, and application of protective layer | |
| CN109706418A (en) | A kind of double ceramic layer structure 8YSZ thermal barrier coatings and preparation method | |
| CN101748404A (en) | Coating structure with micropore transition layer and preparation method thereof | |
| CN104891990A (en) | Thermal barrier coating material of eutectic structure and method for manufacturing thermal spraying powder particles by utilizing material | |
| JP2015166479A (en) | New structure for thermal barrier coating improved in erosion and impact property and having ultralow thermal conductivity | |
| CN107815633A (en) | A kind of high-performance thermal barrier coating and its ceramic layer | |
| CN111777413A (en) | Preparation method and application of nano gadolinium zirconate powder for plasma spraying | |
| CN105401116A (en) | Preparation method for titanium alloy TiAl3-Al composite coating | |
| CN105088125A (en) | Low-cost nontoxic thermal barrier coating and manufacturing method thereof | |
| CN104451675A (en) | Preparation method of ceramic sealing coating with high thermal shock resistance | |
| CN105063541A (en) | Thermal barrier coating with acoustic absorption and thermal insulation functions and preparing method thereof | |
| CN105088124A (en) | Thermal barrier coating with high bonding strength and preparation method thereof | |
| CN105063544A (en) | Nano-particle electromagnetic interference prevention thermal barrier coating and manufacture method thereof | |
| JP4533718B2 (en) | Thermal barrier coating material, gas turbine member to which thermal barrier coating material is applied, and gas turbine | |
| CN104446397B (en) | A kind of hard alloy sub-micron crystal ceramic coating and preparation method | |
| CN105112839A (en) | Thermal barrier coating with good light resistance and thermal shock resistance and manufacturing method for thermal barrier coating | |
| CN105112842A (en) | Thermal barrier coating containing heat insulating ceramic layer and manufacturing method of coating | |
| CN105063543A (en) | Inflaming retarding and oxidation resistance thermal barrier coating and manufacturing method thereof | |
| CN105112847A (en) | Antistatic oxidation-resistant thermal barrier coating and preparation method thereof | |
| CN105112843A (en) | Corrosion-resistant thermal barrier coating and preparation method thereof | |
| CN104195498A (en) | Metal-based ceramic coating and preparation method thereof | |
| CN105112845A (en) | Stain-proof self-cleaning thermal barrier coating and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151125 |