CN107653432A - A kind of high energy plasma spraying prepares the process of thermal barrier coating - Google Patents
A kind of high energy plasma spraying prepares the process of thermal barrier coating Download PDFInfo
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- CN107653432A CN107653432A CN201710901060.4A CN201710901060A CN107653432A CN 107653432 A CN107653432 A CN 107653432A CN 201710901060 A CN201710901060 A CN 201710901060A CN 107653432 A CN107653432 A CN 107653432A
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- Prior art keywords
- high energy
- spray
- plasma spraying
- thermal barrier
- energy plasma
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Classifications
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/134—Plasma spraying
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
- C23C4/073—Metallic material containing MCrAl or MCrAlY alloys, where M is nickel, cobalt or iron, with or without non-metal elements
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/10—Oxides, borides, carbides, nitrides or silicides; Mixtures thereof
- C23C4/11—Oxides
Abstract
The invention discloses the process that a kind of high energy plasma spraying prepares thermal barrier coating, MCrAlY alloy powder is sprayed into by matrix surface using high energy plasma spraying equipment or supersonic velocity flame plating equipment and prepares bond coating, pressure cooling is carried out to matrix using compressed air in spraying process, substrate temperature is less than 200 DEG C.8YSZ powder sprays to the matrix surface for having prepared bond coating are prepared by ceramic topcoats using high energy plasma spraying equipment, pressure cooling is carried out to matrix using compressed air in spraying process, makes substrate temperature less than 300 DEG C.Solve when preparing thermal barrier coating bond coating in the prior art using limitation of the HVAF to spraying raw material, and prepare low using normal atmospheric plasma process spray efficiency during thermal barrier coating ceramic topcoats, the problem of porosity is big, and bond strength and life-span are relatively low.The present invention can rapidly and efficiently prepare the ceramic topcoats of bond coating and high performance and long service life.
Description
Technical field
The invention belongs to Thermal Barrier Coating Technologies field, more particularly to a kind of high energy plasma spraying to prepare the work of thermal barrier coating
Process.
Background technology
Thermal barrier coating (Thermal Barrier Coatings, TBCs) has numerous applications in aerospace field.Thermal boundary
Coating can completely cut off high-temperature component and high-temperature work environment, to reduce the operating temperature of hot-end component, prevent substrate component from sending out
Raw high temperature corrosion and high-temperature oxydation, extend its service life.High-pressure turbine working blade, guide vane, combustion chamber etc. zero at present
Part uses Thermal Barrier Coating Technologies.
Thermal barrier coating largely uses double-decker, including bond coating and ceramic topcoats at present.Bond coating APS,
HVOF, LPPS or cold spraying prepare MCrAlY coatings, play the work of thermal coefficient of expansion that is anti-oxidant, reducing ceramic topcoats and matrix
With.Ceramic topcoats are using Y of the normal atmospheric plasma process spraying with heat-blocking action2O3Partially stabilized ZrO2(YSZ) apply
Layer.
The Failure Factors of thermal barrier coating are complex, are primarily present two big main factors, and one kind is due to thermal barrier coating in height
The thermal coefficient of expansion of metal bond coating is larger under warm environment, and larger volume occurs and expands, and the thermal coefficient of expansion of ceramic topcoats
It is smaller, cause bond coating to produce thermal stress with ceramic topcoats, ultimately result in coating failure；Another kind is that metal bond coating exists
Aoxidized under high temperature, generate spinels oxide TGO, with thickening for TGO, crackle can occur at Ceramic-to-Metal interface
Germinating and extension, ultimately result in ceramic topcoats spalling failure.
The preparation technology of traditional thermal barrier, using HVAF MCrAlY coatings, sprayed using atmospheric plasma
Apply ceramic topcoats.But HVAF MCrAlY coatings require harsher to powder, do not filled for melting compared with corase meal
Point, coating antioxygenic property is poor, and processing efficiency is low.Using air plasma spraying ceramic topcoats, coating deposition efficiency is low, powder
Uneven heating is even and speed is low, melts insufficient, causes that the ceramic topcoats porosity is larger, and bond strength is relatively low with thermal shock lifetime,
The serious use for constraining thermal barrier coating.Furthermore prepare the bond coating and pottery of thermal barrier coating respectively using two kinds of different process
Porcelain facing layer, the complexity of technique is added, not only make it that coating processing efficiency is low, and processing cost improves.
The content of the invention
It is an object of the invention to provide the process that a kind of high energy plasma spraying prepares thermal barrier coating, solves existing
Have using limitation of the HVAF to spraying raw material when thermal barrier coating bond coating is prepared in technology, and prepare thermal boundary
Low using normal atmospheric plasma process spray efficiency during coating ceramic surface layer, porosity is big, and bond strength and life-span are relatively low
Problem.The present invention can rapidly and efficiently prepare the ceramic topcoats of bond coating and high performance and long service life.
To reach above-mentioned purpose, the present invention adopts the following technical scheme that：
The invention provides the process that a kind of high energy plasma spraying prepares thermal barrier coating, comprise the following steps：
Step a, MCrAlY alloy powder is sprayed into using high energy plasma spraying equipment or supersonic velocity flame plating equipment
Matrix surface prepares bond coating, carries out pressure cooling to matrix using compressed air in spraying process, is less than substrate temperature
200℃。
Step b, using high energy plasma spraying equipment by 8YSZ powder sprays to the matrix surface for having prepared bond coating
Ceramic topcoats are prepared, pressure cooling is carried out to matrix using compressed air in spraying process, make substrate temperature less than 300 DEG C.
Further, the features of the present invention also resides in：
In step a, using high energy plasma spraying equipment spray bond coating when, spray power be 150KW~
170KW, spray voltage are 380V~420V, spray main gas and use N2Or Ar, spray auxiliary gas and use H2, spraying primary air amount is
70SLPM~80SLPM, it is 10SLPM~20SLPM to spray auxiliary throughput, and spray distance is 170mm~200mm, and powder sending quantity is
100g/min~300g/min；
In stepb, the spray power of ceramic topcoats is 170KW~200KW, and spray voltage is 380V~420V, spraying
Main gas uses N2Or Ar, spray auxiliary gas and use H2, spraying primary air amount is 80SLPM~100SLPM, and spraying auxiliary throughput is
25SLPM~50SLPM, spray distance are 180mm~200mm, and powder sending quantity is 50g/min~150g/min, move rifle speed and are more than
300mm/s。
Before step a, oil processing is carried out to matrix surface, and carry out roughening treatment.
Before step a, masking protection is carried out with exterior domain to position need to be sprayed.
The spray gun of high energy plasma spraying equipment uses the spray gun with Laval configuration.
The powder size of MCrAlY alloy powder is 15 μm~60 μm.
Granularity is 20 μm~100 μm after 8YSZ powder is reunited.
High energy plasma spraying equipment or the spray gun of supersonic velocity flame plating equipment are accommodated in machinery using insulating materials
Sprayed on hand.
Compared with prior art, the present invention has technique effect beneficial below：
The present invention uses high energy plasma or HVAF MCrAlY bond coatings, is sprayed using high energy plasma
YSZ ceramic topcoats, realize efficiently preparation porosity and be more than 50 higher than 50Mpa, water cooling thermal shock number less than 20%, bond strength
Thermal barrier coating, and coating deposition efficiency reaches 50%.Compared to atmospheric plasma technique, coating production efficiency of the present invention, combine
Intensity and anti-thermal shock life-span are enhanced about more than once.The present invention has higher spray efficiency, reliability, economy and ensures use
Life-span, productivity ratio is improved, reduce production cost, the anti-of other types turbogenerator hot-end component can be applied to
Shield, is expected to produce huge social benefit and significant economic benefit.
Embodiment
The present invention is described in further detail below：
The invention provides the process that a kind of high energy plasma spraying prepares thermal barrier coating, comprise the following steps, walk
Rapid a, MCrAlY alloy powder is sprayed into by matrix surface system using high energy plasma spraying equipment or supersonic velocity flame plating equipment
For bond coating, pressure cooling is carried out to matrix using compressed air in spraying process, substrate temperature is less than 200 DEG C.
M in MCrAlY alloy powder is W metal and/or metal Co.
Step b, using high energy plasma spraying equipment by 8YSZ powder sprays to the matrix surface for having prepared bond coating
Ceramic topcoats are prepared, pressure cooling is carried out to matrix using compressed air in spraying process, make substrate temperature less than 300 DEG C.
In step a, using high energy plasma spraying equipment spray bond coating when, spray power be 150KW~
170KW, spray voltage are 380V~420V, spray main gas and use N2Or Ar, spray auxiliary gas and use H2, spraying primary air amount is
70SLPM~80SLPM, it is 10SLPM~20SLPM to spray auxiliary throughput, and spray distance is 170mm~200mm, and powder sending quantity is
100g/min~300g/min；The powder size of MCrAlY alloy powder is 15 μm~60 μm.
Herein, it is necessary to which explanation, because the spray parameters of supersonic velocity flame plating equipment are highly developed, therefore does not have
Have and describe in detail in the description.
In stepb, the spray power of ceramic topcoats is 170KW~200KW, and spray voltage is 380V~420V, to carry
High beta plasma heat enthalpy value sprays main gas and uses high-purity N2Or Ar, spray auxiliary gas and use H2, spraying primary air amount be 80SLPM~
100SLPM, it is 25SLPM~50SLPM to spray auxiliary throughput, and spray distance is 180mm~200mm, powder sending quantity be 50g/min~
150g/min, move rifle speed and be more than 300mm/s；Granularity is 20 μm~100 μm after 8YSZ powder is reunited.
In above-mentioned preparation process, spray voltage is in 400V or so, for protection life and equipment safety, using special insulation
Material accommodates spray gun to be sprayed on a robotic arm.
The present invention uses high energy plasma or HVAF MCrAlY bond coatings, is sprayed using high energy plasma
YSZ ceramic topcoats, realize efficiently preparation porosity and be more than 50 higher than 50Mpa, water cooling thermal shock number less than 20%, bond strength
Secondary thermal barrier coating, and coating deposition efficiency reaches 50%.Compared to atmospheric plasma technique, coating production efficiency of the present invention, knot
Close intensity and the anti-thermal shock life-span is enhanced about more than once.There is the present invention higher spray efficiency, reliability, economy and guarantee to make
With the life-span, productivity ratio is improved, reduces production cost, the anti-of other types turbogenerator hot-end component can be applied to
Shield, is expected to produce huge social benefit and significant economic benefit.
Embodiment 1：
The present embodiment carries out the preparation of thermal barrier coating to I grade of turborotor of combustion engine.
Before spraying, oil removal treatment is carried out to piece surface using gasoline or acetone, then utilizes thermal spraying special protection
Adhesive tape is protected to non-spraying region, is carried out roughening treatment to spraying area by the forced blowing machine of 60 mesh, is then removed
Protection glue band.
Part is accommodated in the frock of special material and PROCESS FOR TREATMENT, being accommodated by multi-spindle machining hand, there is Lavalle to tie
The 200-4 type spray guns of structure.Herein, the frock is made using the high temperature alloy of chrome-faced, for non-spraying region
Protected and accommodated.
Bond coating is quenched powder using CoCrAlYSi alloy speed, 15 μm~60 μm of powder size, using plazjet high energy
Plasma spraying equipment is sprayed by setup parameter, and pressure cooling is carried out to part using compressed air in spraying process,
Part temperature is set to maintain less than 200 DEG C.Setup parameter is as follows：Spray power is 150KW, spray distance 170mm, powder sending quantity
For 100g/min, main gas N is sprayed2Flow is 70SLPM, sprays auxiliary gas H2Flow is 10SLPM.
Ceramic topcoats use Y2O3Stable ZrO2Powder, i.e. YSZ powder, 20 μm~100 μm of powder size, use
Plazjet high energy plasma spraying equipments are sprayed by setup parameter, and part is entered using compressed air in spraying process
Row forces cooling, Part temperature is maintained less than 300 DEG C.Setup parameter is as follows：Spray power is 170KW, and spray distance is
180mm, powder sending quantity 50g/min, effluxvelocity 350m/s, it is 500mm/s to move rifle speed, sprays main gas and uses high-purity N 2,
Primary air amount is 100SLPM, auxiliary gas H2Flow is 50SLPM.
Continuous spray to the coating layer thickness set, force cooling, make part and coating natural cooling, complete by stopping compressed air
Into the preparation of thermal barrier coating.
In the present embodiment, the bond coating and ceramic plane that prepare thermal barrier coating that can be rapidly and efficiently using same equipment
Layer.The porosity of thermal barrier coating is more than 50 less than 20%, bond strength higher than 50Mpa, water cooling thermal shock number, coating deposition efficiency
Reach 50%, coating production efficiency, bond strength and anti-thermal shock life-span are enhanced about more than once.
Embodiment 2：
The present embodiment carries out the preparation of thermal barrier coating to turborotor.
Before spraying, oil removal treatment is carried out to piece surface using gasoline or acetone, then utilizes thermal spraying special protection
Adhesive tape is protected to non-spraying region, carries out roughening treatment to spraying area by the forced blowing machine of 60 mesh, pressure is
0.4MPa, then remove Protection glue band.
Part is accommodated in the frock of special material and PROCESS FOR TREATMENT, being accommodated by multi-spindle machining hand, there is Lavalle to tie
The 200-4 type spray guns of structure.
Bond coating uses NiCrAlY alloy powders, 20 μm~60 μm of powder size, using plazjet high energy plasmas
Spraying equipment is sprayed by setup parameter, is carried out pressure cooling to part using compressed air in spraying process, is made part
Temperature maintains less than 200 DEG C.Setup parameter is：Spray power is 170KW, spray distance 200mm, powder sending quantity 300g/
Min, it is 75SLPM, auxiliary gas H to spray main gas Ar flows2Flow is 15SLPM.
Ceramic topcoats use nanometer 8YSZ powder, 20 μm~100 μm of powder size, are sprayed using plazjet high energy plasmas
Automatic doubler surface glouer is sprayed by setup parameter, is carried out pressure cooling to part using compressed air in spraying process, is made part temperature
Degree maintains less than 300 DEG C.Setup parameter is：Spray power is 200KW, spray distance 200mm, powder sending quantity 150g/
Min, effluxvelocity 420m/s, it is 500mm/s to move rifle speed, and it is 90SLPM to spray main gas Ar flows, sprays auxiliary gas H2Flow
For 45SLPM.
Continuous spray to the coating layer thickness set, force cooling, make part and coating natural cooling, complete by stopping compressed air
Into the preparation of thermal barrier coating.
In the present embodiment, the bond coating and ceramic plane that prepare thermal barrier coating that can be rapidly and efficiently using same equipment
Layer.The porosity of thermal barrier coating is more than 50 less than 20%, bond strength higher than 50Mpa, water cooling thermal shock number, coating deposition efficiency
Reach 50%, coating production efficiency, bond strength and anti-thermal shock life-span are enhanced about more than once.
Embodiment 3：
The present embodiment carries out the preparation of thermal barrier coating to single crystal substrate surface.
Before spraying, oil removal treatment is carried out to piece surface using gasoline or acetone, then using laser surface to monocrystalline
Matrix carries out surface coarsening with suitable parameter, and surface roughness is more than 3 μm after roughening.
Bond coating uses HVAF CoNiCrAlY alloy powders, 15 μm~40 μm of powder size, by setting
Determine parameter to be sprayed, part cooled down using compressed air in spraying process, make Part temperature maintain 100 DEG C with
Under.Setup parameter is：Kerosene is 5GPM, oxygen 950SLPM, spray distance 180mm, powder sending quantity 40g/min.
Ceramic topcoats accommodate the 200-4 type spray guns with Laval configuration using multi-spindle machining hand, using plazjet high energy
Plasma spraying 20 μm~60 μm of powder size, is carried out to single crystal substrate surface spraying nanometer 8YSZ powder by setup parameter
Spray, pressure cooling is carried out to part using compressed air in spraying process, Part temperature is maintained less than 300 DEG C.Setting
Parameter is：Spray power is 190KW, spray distance 190mm, powder sending quantity 100g/min, effluxvelocity 400m/s, moves rifle
Speed is 500mm/s, sprays main gas and uses N2 flows as 90SLPM, and auxiliary gas H2 flows are 50SLPM.
Continuous spray to the coating layer thickness set, force cooling, make part and coating natural cooling, complete by stopping compressed air
Into the preparation of thermal barrier coating.
In the present embodiment, the porosity of thermal barrier coating is higher than 50Mpa, water cooling thermal shock number less than 20%, bond strength
More than 50, coating deposition efficiency reaches 50%, and coating production efficiency, bond strength and anti-thermal shock life-span are enhanced about more than once.
Claims (8)
1. a kind of high energy plasma spraying prepares the process of thermal barrier coating, it is characterised in that comprises the following steps：
Step a, MCrAlY alloy powder is sprayed into by matrix using high energy plasma spraying equipment or supersonic velocity flame plating equipment
Surface prepares bond coating, and pressure cooling is carried out to matrix using compressed air in spraying process, substrate temperature is less than 200
℃；
Step b, using high energy plasma spraying equipment prepared by 8YSZ powder sprays to the matrix surface for having prepared bond coating
Ceramic topcoats, pressure cooling is carried out to matrix using compressed air in spraying process, substrate temperature is less than 300 DEG C.
2. high energy plasma spraying according to claim 1 prepares the process of thermal barrier coating, it is characterised in that in step
In rapid a, when spraying bond coating using high energy plasma spraying equipment, spray power is 150KW~170KW, and spray voltage is
380V~420V, spray main gas and use N2Or Ar, spray auxiliary gas and use H2, spraying primary air amount is 70SLPM~80SLPM, spray
It is 10SLPM~20SLPM to apply auxiliary throughput, and spray distance is 170mm~200mm, and powder sending quantity is 100g/min~300g/min；
In stepb, the spray power of ceramic topcoats is 170KW~200KW, and spray voltage is 380V~420V, sprays main gas
Using N2Or Ar, spray auxiliary gas and use H2, spraying primary air amount be 80SLPM~100SLPM, spray auxiliary throughput be 25SLPM~
50SLPM, spray distance are 180mm~200mm, and powder sending quantity is 50g/min~150g/min, move rifle speed and are more than 300mm/s.
3. high energy plasma spraying according to claim 1 prepares the process of thermal barrier coating, it is characterised in that in step
Before rapid a, oil processing is carried out to matrix surface, and carry out roughening treatment.
4. high energy plasma spraying according to claim 1 prepares the process of thermal barrier coating, it is characterised in that in step
Before rapid a, masking protection is carried out with exterior domain to position need to be sprayed.
5. high energy plasma spraying according to claim 1 prepares the process of thermal barrier coating, it is characterised in that high energy
The spray gun of plasma spraying equipment uses the spray gun with Laval configuration.
6. high energy plasma spraying according to claim 1 prepares the process of thermal barrier coating, it is characterised in that
The powder size of MCrAlY alloy powder is 15 μm~60 μm.
7. high energy plasma spraying according to claim 1 prepares the process of thermal barrier coating, it is characterised in that 8YSZ
Granularity is 20 μm~100 μm after powder is reunited.
8. high energy plasma spraying according to claim 1 prepares the process of thermal barrier coating, it is characterised in that uses
Insulating materials accommodates high energy plasma spraying equipment or the spray gun of supersonic velocity flame plating equipment to be sprayed on a robotic arm.
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Cited By (9)
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| CN108300959A (en) * | 2018-04-26 | 2018-07-20 | 东莞市华鑫激光科技有限公司 | A kind of preparation method for the insulative ceramic coatings being sprayed at metal surface |
| CN108754398A (en) * | 2018-06-19 | 2018-11-06 | 北京矿冶科技集团有限公司 | The preparation method of high-purity porous ceramics abradable seal coating |
| CN110629152A (en) * | 2019-10-09 | 2019-12-31 | 中国人民解放军第五七一九工厂 | Spraying method of thermal barrier coating with longitudinal cracks for combustion chamber |
| CN110735102A (en) * | 2019-11-15 | 2020-01-31 | 天宜上佳（天津）新材料有限公司 | production method of brake disc and brake disc cooling device |
| CN111996481A (en) * | 2020-08-25 | 2020-11-27 | 郑州大学 | Preparation method of YSZ/Cu metal ceramic composite coating |
| CN115287575A (en) * | 2022-07-21 | 2022-11-04 | 中国航发成都发动机有限公司 | Method for spraying high-bonding-strength coating by supersonic flame |
| CN116023149A (en) * | 2022-12-26 | 2023-04-28 | 西安鑫垚陶瓷复合材料股份有限公司 | Aeroengine turbine guide vane capable of being used for 1300 ℃ long-service life and preparation method thereof |
| CN117362030A (en) * | 2023-11-14 | 2024-01-09 | 南京工程学院 | Strong heat accumulation and thermal erosion resistant micro-nano composite ceramic powder and coating thereof, and preparation method and application of coating |
| CN115287575B (en) * | 2022-07-21 | 2024-05-14 | 中国航发成都发动机有限公司 | Method for spraying high-bonding-strength coating by supersonic flame |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108300959A (en) * | 2018-04-26 | 2018-07-20 | 东莞市华鑫激光科技有限公司 | A kind of preparation method for the insulative ceramic coatings being sprayed at metal surface |
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| CN111996481A (en) * | 2020-08-25 | 2020-11-27 | 郑州大学 | Preparation method of YSZ/Cu metal ceramic composite coating |
| CN115287575A (en) * | 2022-07-21 | 2022-11-04 | 中国航发成都发动机有限公司 | Method for spraying high-bonding-strength coating by supersonic flame |
| CN115287575B (en) * | 2022-07-21 | 2024-05-14 | 中国航发成都发动机有限公司 | Method for spraying high-bonding-strength coating by supersonic flame |
| CN116023149A (en) * | 2022-12-26 | 2023-04-28 | 西安鑫垚陶瓷复合材料股份有限公司 | Aeroengine turbine guide vane capable of being used for 1300 ℃ long-service life and preparation method thereof |
| CN117362030A (en) * | 2023-11-14 | 2024-01-09 | 南京工程学院 | Strong heat accumulation and thermal erosion resistant micro-nano composite ceramic powder and coating thereof, and preparation method and application of coating |
| CN117362030B (en) * | 2023-11-14 | 2024-05-03 | 南京工程学院 | Strong heat accumulation and thermal erosion resistant micro-nano composite ceramic powder and coating thereof, and preparation method and application of coating |
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Application publication date: 20180202 |