CN103434209A - Novel low-thermal-conductivity and high-temperature-resistant thermal barrier coating and preparation method thereof - Google Patents
Novel low-thermal-conductivity and high-temperature-resistant thermal barrier coating and preparation method thereof Download PDFInfo
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- CN103434209A CN103434209A CN2013103961947A CN201310396194A CN103434209A CN 103434209 A CN103434209 A CN 103434209A CN 2013103961947 A CN2013103961947 A CN 2013103961947A CN 201310396194 A CN201310396194 A CN 201310396194A CN 103434209 A CN103434209 A CN 103434209A
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Abstract
The invention belongs to the technical field of high-temperature coating protection, and particularly relates to a novel low-thermal-conductivity and high-temperature-resistant thermal barrier coating and a preparation method thereof. A ceramic top layer is formed by adopting Pr2Zr2O7. The novel ceramic top layer formed by adopting Pr2Zr2O7 has a structure similar to the structure of pyrochlore existing in the nature, and the structure is complicated in structure, low in thermal conductivity, high in melting points, high in thermal expansion coefficient and good in phase stability. Therefore, the ceramic top layer formed by adopting Pr2Zr2O7 has the advantages of being low in thermal conductivity, high in thermal expansion coefficient, stable in phase and the like, and can be applied in a thermal barrier coating system at the high-temperature environment. Thermal barrier coatings with different thicknesses can be obtained according to different preparation techniques, thus obtaining different heat insulation effects and achieving the purpose of industrial application need. The novel low-thermal-conductivity and high-temperature-resistant thermal barrier coating has the advantages of being good in high temperature resistance, low in heat conductivity, and high in thermal expansion coefficients, and also has certain high-temperature-resistant CMAS (Calcium-Magnesium-Alumina-Silicate) corrosion property.
Description
Technical field
The invention belongs to high temperature coating guard technology field, particularly a kind of novel lower thermal conductivity and high temperature heat-resistant barrier coating and preparation method thereof.
Background technology
The development of modern technologies, expectation to aeronautical and space technology is more and more higher, thereby aero-engine performance has been proposed to more and more higher requirement, namely to the thrust-weight ratio of engine, also require increasing, revolution to aero-engine requires also more and more higher, therefore the out temperature that improves turbine just seems particularly important, yet work under the condition of higher temperature, exceeded the temperature that the nickel-base high-temperature alloy material of manufacturing turbo blade and guide vane can bear, because the high temperature alloy new with exploitation compared, Thermal Barrier Coating Technologies (thermal barrier coatings, TBCs) research cost is much lower, technique reality is feasible, therefore, the application Thermal Barrier Coating Technologies is one of direction of turbine development.
What in aero-engine, generally use at present is to have good stability, the good double-decker thermal barrier coating of effect of heat insulation, adopt introducing one deck between ceramic layer and metallic matrix to improve matrix and ceramic layer physical compatibility and there is resistance to high temperature oxidation and the tack coat of corrosiveness (NiCoCrAlY), with ceramic as heat insulation top layer by (7～9wt%) stabilized with yttrium oxide, zirconia that heat-insulating capability is strong (Yttria Stabilized Zirconia is called for short YSZ).YSZ, more than 1200 ℃ during long-term the use, can undergo phase transition, sintering and cause the tack coat oxidation aggravation imagination.Yet aero-engine out temperature of future generation will significantly improve, to estimate to reach 20 when the thrust-weight ratio of engine, the fuel gas inlet temperature will be over 2000 ℃.At so high temperature, use, the material system that inevitable requirement can be complementary with it, because rear-earth-doped YSZ has lower thermal conductivity and stable high-temperature behavior, therefore, design rear-earth-doped resistant to elevated temperatures lower thermal conductivity thermal barrier coating and there is important scientific meaning and social value.
Summary of the invention
For the prior art deficiency, the invention provides a kind of novel lower thermal conductivity and high temperature heat-resistant barrier coating and preparation method thereof.
A kind of novel lower thermal conductivity and high temperature heat-resistant barrier coating, described thermal barrier coating is double-decker, wherein NiCoCrAlY is as adhesive linkage, Pr
2zr
2o
7as ceramic top layer, the two is connected and forms; The mass fraction that the mass fraction that the mass fraction that in described NiCoCrAlY adhesive linkage, the mass fraction of Co is 22%～24%, Cr is 20%～22%, Al is 8%～10%, Y is 0.5%～1.5%, and all the other are Ni.
Described Pr
2zr
2o
7ceramic top layer has the structure same with the pyrochlore mineral facies.
Described Pr
2zr
2o
7the thermal conductivity of ceramic top layer is 1.6～1Wm
-1k
-1, its fusing point is 2350 ℃, its thermal coefficient of expansion is 11～5K
-1.
A kind of novel lower thermal conductivity and the preparation method of high temperature heat-resistant barrier coating, its concrete steps are as follows:
(1) preparation of NiCoCrAlY tack coat adopts one of following two schemes:
A. the technique that adopts the electro beam physics vapour deposition technology to prepare the NiCoCrAlY tack coat is: the raw material configured is carried out to high melt at 1500～1600 ℃ of temperature, be cast into the NiCoCrAlY charge bar after melting, in described raw material, the mass fraction of Co is 22%～24%, the mass fraction of Cr is 20%～22%, the mass fraction of Al is 8%～10%, the mass fraction of Y is 0.5%～1.5%, and all the other are Ni; Gained NiCoCrAlY charge bar is put into to the electro beam physics vapour deposition vacuum chamber, is 1 * 10 by the vacuum degree control of vacuum chamber
-2～10 * 10
-2pa, deposited with the speed of 0.1～2 μ m/min; It is 800～900 ℃ that the deposition time substrate temperature is controlled, and it is 60～90 μ m that coating layer thickness is controlled, and after the made sample of getting ready is cooled down, puts into vacuum drying oven and heat-treats; Described Technology for Heating Processing is: vacuum degree control is 1 * 10
-2～10 * 10
-2pa, heating rate is 3 ℃/min, under 1050 ℃ the insulation 4 hours, cooling with stove after, can obtain the NiCoCrAlY tack coat;
B. the technological parameter that adopts plasma spraying technology to prepare the NiCoCrAlY tack coat is: voltage is 50～60V, electric current is 500～600A, argon flow amount is 50～60L/min, powder feeding rate is 20～40g/min, the mass fraction that the mass fraction that in the raw material used, the mass fraction of Co is 22%～24%, Cr is 20%～22%, Al is 8%～10%, the mass fraction of Y is 0.5%～1.5%, and all the other are Ni;
(2) blasting treatment of NiCoCrAlY tack coat:
Carry out blasting treatment in the NiCoCrAlY tie layer surface prepared, its blasting craft is: angle is 90 degree, and distance is 200mm, and sand grains is 60～180 purpose emergies, and the time is 3 minutes;
(3) the NiCoCrAlY tack coat of take after blasting treatment is substrate, prepares Pr thereon
2zr
2o
7ceramic top layer, thus thermal barrier coating obtained, adopt one of following two schemes:
A. by Pr
2o
5powder is doped in zirconia, wherein Pr
2o
5the mass fraction of powder is 10%～30%, after stirring, under the condition that is 0.6MPa at pressure, at 1500 ℃ of temperature, sintering is 10 hours, carry out high temperature insostatic pressing (HIP), obtain the required charge bar of electro beam physics vapour deposition, then adopt electro beam physics vapour deposition to prepare Pr
2zr
2o
7ceramic top layer;
Described electro beam physics vapour deposition technique is: by synthetic Pr
2zr
2o
7being charge bar, putting into the electro beam physics vapour deposition vacuum chamber, is 1 * 10 by the vacuum degree control of vacuum chamber
-2～10 * 10
-2pa, deposited with the speed of 0.1～2 μ m/min; During deposition, the control of NiCoCrAlY tack coat base reservoir temperature is 800～900 ℃, and it is 80～100 μ m that coating layer thickness is controlled, and after the made sample of getting ready is cooled down, puts into stove and heat-treats; Described Technology for Heating Processing is: heating rate is 3 ℃/min, and insulation is 2 hours under 1050 ℃, cooling with stove after, can prepare Pr
2zr
2o
7ceramic top layer, thus thermal barrier coating obtained;
B. by Pr
2o
5be doped in Zirconium powder, wherein Pr
2o
5mass fraction be 10%～30%, the granularity of described Zirconium powder is 1～10 μ m, after stirring, obtains the required ceramic top layer powder of plasma spraying, adopts plasma spraying to prepare Pr
2zr
2o
7ceramic top layer, thus thermal barrier coating obtained;
The technological parameter of described plasma spraying is: voltage is 50～60V, electric current is 500～600A, argon flow amount is 50～60L/min, hydrogen flowing quantity is 15～25L/min, the turntable rotating speed is 5～15 turn/min, the spray gun rotating speed is 35～45 turn/min, and cavity pressure is 70 torrs, and powder feeding rate is 20～40g/min.
In step (1), described NiCoCrAlY charge bar is of a size of Φ 68mm * 200mm.
Beneficial effect of the present invention is:
Utilize electro beam physics vapour deposition technology or plasma spraying technology to prepare Pr
2zr
2o
7the ceramic top layer that system forms, due to Pr
2zr
2o
7the ceramic top layer that system forms has the structure similar with the pyrochlore mineral structure, and this kind of structure has complex structure, low thermal conductivity, high-melting-point, high thermal coefficient of expansion and good phase stability.The thermal resistance coefficient that the principle that this kind of structure has lower thermal conductivity is insulator is that the some vibration by phon scattering determines, one of mode that reduces thermal conductivity is disturbed the vibration of dot matrix, crystallization atoms different in crystal structure is changed into relative low-symmetry or structure cell combine, the quantity of interfering scattering center increases in addition, and thermal conductivity will descend.So it is more complicated that crystal structure becomes, thermal conductivity will be lower.Thereby can be used in the Novel hot barrier coating that preparation is at high temperature applied.Utilize different technique to adjust thermal barrier coating, to reach industrial requirement simultaneously.This thermal barrier coating has advantages of good high temperature resistant, low heat conduction and high thermal coefficient of expansion, also has the performance that certain high temperature resistant CMAS corrodes simultaneously.
The accompanying drawing explanation
The structural representation that Fig. 1 is thermal barrier coating of the present invention.
The specific embodiment
The invention provides a kind of novel lower thermal conductivity and high temperature heat-resistant barrier coating and preparation method thereof, below in conjunction with the drawings and specific embodiments, the present invention will be further described.
Embodiment 1
The raw material configured is carried out to high melt at 1500～1600 ℃ of temperature, be cast into the NiCoCrAlY charge bar after melting, in described raw material, the mass fraction of Co is 22%, the mass fraction of Cr is 20%, the mass fraction that the mass fraction of Al is 8%, Y is 0.5%, and all the other are Ni; Being cast into the charge bar that is of a size of Φ 68mm * 200mm after melting, gained NiCoCrAlY charge bar is put into to the electro beam physics vapour deposition vacuum chamber, is 1 * 10 by the vacuum degree control of vacuum chamber
-2pa, deposited with the speed of 0.1 μ m/min; It is 800～900 ℃ that the deposition time substrate temperature is controlled, and it is 60 μ m that coating layer thickness is controlled, and after the made sample of getting ready is cooled down, puts into vacuum drying oven and heat-treats; Described Technology for Heating Processing is: vacuum degree control is 1 * 10
-2pa, heating rate is 3 ℃/min, under 1050 ℃ the insulation 4 hours, cooling with stove after, can obtain the NiCoCrAlY tack coat;
Carry out blasting treatment in the NiCoCrAlY tie layer surface prepared, its blasting craft is: angle is 90 degree, and distance is 200mm, and sand grains is 60～180 purpose emergies, and the time is 3 minutes, thereby obtains desirable NiCoCrAlY adhesive linkage surface;
The NiCoCrAlY tack coat of take after blasting treatment is substrate, adopts the electro beam physics vapour deposition technology to prepare ceramic top layer thereon, and its concrete technology is: by Pr
2o
5powder is doped in zirconia, wherein Pr
2o
5the mass fraction of powder is 10%, and after stirring, under the condition that is 0.6MPa at pressure, at 1500 ℃ of temperature, sintering is 10 hours, carries out high temperature insostatic pressing (HIP), forms the required charge bar of electro beam physics vapour deposition, by synthetic Pr
2zr
2o
7be ceramic rod, put into the electro beam physics vapour deposition vacuum chamber, by the vacuum degree control of vacuum chamber 2 * 10
-2pa, speed with 0.8 μ m/min is deposited, in order to obtain better bond strength and coating structure pattern, during deposition, NiCoCrAlY tack coat base reservoir temperature is controlled at 850 ℃ of left and right, and coating layer thickness is controlled at 90 μ m left and right, after the made sample of getting ready is cooled down, put into stove and heat-treat, its treatment process is: heating rate is 3 ℃/min, and insulation is 2 hours under 1050 ℃, after cooling with stove, can be made into needed novel high temperature resistance thermal barrier coating.
Embodiment 2
The raw material configured is carried out to high melt at 1500～1600 ℃ of temperature, be cast into the NiCoCrAlY charge bar after melting, in described raw material, the mass fraction of Co is 23%, the mass fraction of Cr is 21%, the mass fraction that the mass fraction of Al is 9%, Y is 1%, and all the other are Ni; Being cast into the charge bar that is of a size of Φ 68mm * 200mm after melting, gained NiCoCrAlY charge bar is put into to the electro beam physics vapour deposition vacuum chamber, is 5 * 10 by the vacuum degree control of vacuum chamber
-2pa, deposited with the speed of 1 μ m/min; It is 800～900 ℃ that the deposition time substrate temperature is controlled, and it is 75 μ m that coating layer thickness is controlled, and after the made sample of getting ready is cooled down, puts into vacuum drying oven and heat-treats; Described Technology for Heating Processing is: vacuum degree control is 5 * 10
-2pa, heating rate is 3 ℃/min, under 1050 ℃ the insulation 4 hours, cooling with stove after, can obtain the NiCoCrAlY tack coat;
Carry out blasting treatment in the NiCoCrAlY tie layer surface prepared, its blasting craft is: angle is 90 degree, and distance is 200mm, and sand grains is 60～180 purpose emergies, and the time is 3 minutes, thereby obtains desirable NiCoCrAlY surface;
The NiCoCrAlY tack coat of take after blasting treatment is substrate, adopts the electro beam physics vapour deposition technology to prepare ceramic top layer thereon, and its concrete technology is: by Pr
2o
5powder is doped in zirconia, wherein Pr
2o
5the mass fraction of powder is 20%, and after stirring, under the condition that is 0.6MPa at pressure, at 1500 ℃ of temperature, sintering is 10 hours, carries out high temperature insostatic pressing (HIP), forms the required charge bar of electro beam physics vapour deposition, by synthetic Pr
2zr
2o
7be ceramic rod, put into the electro beam physics vapour deposition vacuum chamber, by the vacuum degree control of vacuum chamber 2 * 10
-2pa, speed with 0.5 μ m/min is deposited, in order to obtain better bond strength and coating structure pattern, the deposition time substrate temperature is controlled at 850 ℃ of left and right, and coating layer thickness is controlled at 80 μ m left and right, after the made sample of getting ready is cooled down, put into stove and heat-treat, its treatment process is: heating rate is 3 ℃/min, and insulation is 2 hours under 1050 ℃, after cooling with stove, can be made into needed novel high temperature resistance thermal barrier coating.
Embodiment 3
The raw material configured is carried out to high melt at 1500～1600 ℃ of temperature, be cast into the NiCoCrAlY charge bar after melting, in described raw material, the mass fraction of Co is 24%, the mass fraction of Cr is 22%, the mass fraction that the mass fraction of Al is 10%, Y is 1.5%, and all the other are Ni; Being cast into the charge bar that is of a size of Φ 68mm * 200mm after melting, gained NiCoCrAlY charge bar is put into to the electro beam physics vapour deposition vacuum chamber, is 10 * 10 by the vacuum degree control of vacuum chamber
-2pa, deposited with the speed of 2 μ m/min; It is 800～900 ℃ that the deposition time substrate temperature is controlled, and it is 90 μ m that coating layer thickness is controlled, and after the made sample of getting ready is cooled down, puts into vacuum drying oven and heat-treats; Described Technology for Heating Processing is: vacuum degree control is 10 * 10
-2pa, heating rate is 3 ℃/min, under 1050 ℃ the insulation 4 hours, cooling with stove after, can obtain the NiCoCrAlY tack coat;
Carry out blasting treatment in the NiCoCrAlY tie layer surface prepared, its blasting craft is: angle is 90 degree, and distance is 200mm, and sand grains is 60～180 purpose emergies, and the time is 3 minutes, thereby obtains desirable NiCoCrAlY surface;
The NiCoCrAlY tack coat of take after blasting treatment is substrate, adopts plasma spraying technology to prepare ceramic top layer thereon, and its concrete technology is: by Pr
2o
5powder is doped in zirconia, wherein Pr
2o
5the mass fraction of powder is 30%, and the granularity of described Zirconium powder is 1～10 μ m, after stirring, adopts plasma spraying to be prepared into the thermal barrier coating of the novel high temperature resistance that thickness is 120 μ m left and right, and its concrete technique is as shown in the table:
Table 1 low-voltage plasma spraying prepares Pr
2zr
2o
7the technological parameter of the ceramic top layer that system forms
| Voltage (v) | Electric current (A) | Argon flow amount (L/min) | Hydrogen flowing quantity (L/min) |
| 50 | 500 | 50 | 15 |
| Turntable rotating speed (turning/min) | Spray gun rotating speed (turning/min) | Cavity pressure (torr) | Powder feed rate (g/min) |
| 5 | 35 | 70 | 20 |
Claims (5)
1. a novel lower thermal conductivity and high temperature heat-resistant barrier coating, it is characterized in that: described thermal barrier coating is double-decker, wherein NiCoCrAlY is as adhesive linkage, Pr
2zr
2o
7as ceramic top layer, the two is connected and forms; The mass fraction that the mass fraction that the mass fraction that in described NiCoCrAlY adhesive linkage, the mass fraction of Co is 22%～24%, Cr is 20%～22%, Al is 8%～10%, Y is 0.5%～1.5%, and all the other are Ni.
2. thermal barrier coating according to claim 1, is characterized in that: described Pr
2zr
2o
7ceramic top layer has the structure same with the pyrochlore mineral facies.
3. thermal barrier coating according to claim 1, is characterized in that: described Pr
2zr
2o
7the thermal conductivity of ceramic top layer is 1.6～1Wm
-1k
-1, its fusing point is 2350 ℃, its thermal coefficient of expansion is 11～5K
-1.
4. the preparation method of a novel lower thermal conductivity and high temperature heat-resistant barrier coating, is characterized in that, concrete steps are as follows:
(1) preparation of NiCoCrAlY tack coat adopts one of following two schemes:
A. the technique that adopts the electro beam physics vapour deposition technology to prepare the NiCoCrAlY tack coat is: the raw material configured is carried out to high melt at 1500～1600 ℃ of temperature, be cast into the NiCoCrAlY charge bar after melting, in described raw material, the mass fraction of Co is 22%～24%, the mass fraction of Cr is 20%～22%, the mass fraction of Al is 8%～10%, the mass fraction of Y is 0.5%～1.5%, and all the other are Ni; Gained NiCoCrAlY charge bar is put into to the electro beam physics vapour deposition vacuum chamber, is 1 * 10 by the vacuum degree control of vacuum chamber
-2～10 * 10
-2pa, deposited with the speed of 0.1～2 μ m/min; It is 800～900 ℃ that the deposition time substrate temperature is controlled, and it is 60～90 μ m that coating layer thickness is controlled, and after the made sample of getting ready is cooled down, puts into vacuum drying oven and heat-treats; Described Technology for Heating Processing is: vacuum degree control is 1 * 10
-2～10 * 10
-2pa, heating rate is 3 ℃/min, under 1050 ℃ the insulation 4 hours, cooling with stove after, can obtain the NiCoCrAlY tack coat;
B. the technological parameter that adopts plasma spraying technology to prepare the NiCoCrAlY tack coat is: voltage is 50～60V, electric current is 500～600A, argon flow amount is 50～60L/min, powder feeding rate is 20～40g/min, the mass fraction that the mass fraction that in the raw material used, the mass fraction of Co is 22%～24%, Cr is 20%～22%, Al is 8%～10%, the mass fraction of Y is 0.5%～1.5%, and all the other are Ni;
(2) blasting treatment of NiCoCrAlY tack coat:
Carry out blasting treatment in the NiCoCrAlY tie layer surface prepared, its blasting craft is: angle is 90 degree, and distance is 200mm, and sand grains is 60～180 purpose emergies, and the time is 3 minutes;
(3) the NiCoCrAlY tack coat of take after blasting treatment is substrate, prepares Pr thereon
2zr
2o
7ceramic top layer, thus thermal barrier coating obtained, adopt one of following two schemes:
A. by Pr
2o
5powder is doped in zirconia, wherein Pr
2o
5the mass fraction of powder is 10%～30%, after stirring, under the condition that is 0.6MPa at pressure, at 1500 ℃ of temperature, sintering is 10 hours, carry out high temperature insostatic pressing (HIP), obtain the required charge bar of electro beam physics vapour deposition, then adopt electro beam physics vapour deposition to prepare Pr
2zr
2o
7ceramic top layer;
Described electro beam physics vapour deposition technique is: by synthetic Pr
2zr
2o
7being charge bar, putting into the electro beam physics vapour deposition vacuum chamber, is 1 * 10 by the vacuum degree control of vacuum chamber
-2～10 * 10
-2pa, deposited with the speed of 0.1～2 μ m/min; During deposition, the control of NiCoCrAlY tack coat base reservoir temperature is 800～900 ℃, and it is 80～100 μ m that coating layer thickness is controlled, and after the made sample of getting ready is cooled down, puts into stove and heat-treats; Described Technology for Heating Processing is: heating rate is 3 ℃/min, and insulation is 2 hours under 1050 ℃, cooling with stove after, can prepare Pr
2zr
2o
7ceramic top layer, thus thermal barrier coating obtained;
B. by Pr
2o
5be doped in Zirconium powder, wherein Pr
2o
5mass fraction be 10%～30%, the granularity of described Zirconium powder is 1～10 μ m, after stirring, obtains the required ceramic top layer powder of plasma spraying, adopts plasma spraying to prepare Pr
2zr
2o
7ceramic top layer, thus thermal barrier coating obtained;
The technological parameter of described plasma spraying is: voltage is 50～60V, electric current is 500～600A, argon flow amount is 50～60L/min, hydrogen flowing quantity is 15～25L/min, the turntable rotating speed is 5～15 turn/min, the spray gun rotating speed is 35～45 turn/min, and cavity pressure is 70 torrs, and powder feeding rate is 20～40g/min.
5. preparation method according to claim 4, it is characterized in that: in step (1), described NiCoCrAlY charge bar is of a size of Φ 68mm * 200mm.
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|---|---|---|---|
| CN201310396194.7A CN103434209B (en) | 2013-09-04 | 2013-09-04 | A kind of novel lower thermal conductivity and high temperature heat-resistant barrier coating and preparation method thereof |
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| CN103966539A (en) * | 2014-04-11 | 2014-08-06 | 北京航空航天大学 | Plasma evaporation deposition lanthanide thermal barrier coating ceramic layer with long service lifer, high insulation performance and composite structure, and preparation method thereof |
| CN104674217A (en) * | 2015-03-09 | 2015-06-03 | 河南普莱姆涂层科技有限公司 | Preparation method of thermal barrier coating containing bilayer structure of bonding layers |
| CN107032831A (en) * | 2017-03-29 | 2017-08-11 | 北京航空航天大学 | A kind of Rare Earth T/EBC ceramic bases combinational environment barrier coating and preparation method thereof |
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| US6258467B1 (en) * | 2000-08-17 | 2001-07-10 | Siemens Westinghouse Power Corporation | Thermal barrier coating having high phase stability |
| US6294260B1 (en) * | 1999-09-10 | 2001-09-25 | Siemens Westinghouse Power Corporation | In-situ formation of multiphase air plasma sprayed barrier coatings for turbine components |
| CN102094170A (en) * | 2009-12-15 | 2011-06-15 | 沈阳天贺新材料开发有限公司 | Zirconium oxide thermal barrier coating for turbine buckets of gas turbine and preparation method thereof |
| CN102127738A (en) * | 2010-11-25 | 2011-07-20 | 北京航空航天大学 | Multilayer thermal barrier coating and preparation method thereof |
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2013
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6294260B1 (en) * | 1999-09-10 | 2001-09-25 | Siemens Westinghouse Power Corporation | In-situ formation of multiphase air plasma sprayed barrier coatings for turbine components |
| US6258467B1 (en) * | 2000-08-17 | 2001-07-10 | Siemens Westinghouse Power Corporation | Thermal barrier coating having high phase stability |
| CN102094170A (en) * | 2009-12-15 | 2011-06-15 | 沈阳天贺新材料开发有限公司 | Zirconium oxide thermal barrier coating for turbine buckets of gas turbine and preparation method thereof |
| CN102127738A (en) * | 2010-11-25 | 2011-07-20 | 北京航空航天大学 | Multilayer thermal barrier coating and preparation method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103966539A (en) * | 2014-04-11 | 2014-08-06 | 北京航空航天大学 | Plasma evaporation deposition lanthanide thermal barrier coating ceramic layer with long service lifer, high insulation performance and composite structure, and preparation method thereof |
| CN103966539B (en) * | 2014-04-11 | 2016-08-17 | 北京航空航天大学 | A kind of plasma evaporation deposition long-life, the high heat insulation group of the lanthanides heat-barrier coating ceramic layer with composite construction and preparation method thereof |
| CN104674217A (en) * | 2015-03-09 | 2015-06-03 | 河南普莱姆涂层科技有限公司 | Preparation method of thermal barrier coating containing bilayer structure of bonding layers |
| CN107032831A (en) * | 2017-03-29 | 2017-08-11 | 北京航空航天大学 | A kind of Rare Earth T/EBC ceramic bases combinational environment barrier coating and preparation method thereof |
| CN107032831B (en) * | 2017-03-29 | 2018-02-23 | 北京航空航天大学 | A kind of Rare Earth T/EBC ceramic bases combinational environment barrier coating and preparation method thereof |
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|---|---|
| CN103434209B (en) | 2016-01-13 |
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