CMAS Corrosion Resistance of Y3Al5O12/Al2O3 Ceramic Coating Deposited by Atmospheric Plasma Spraying
文献类型：期刊论文
| 作者 | Li Jie1,2; Luo Zhixin1; Cui Yang1; Zhang Guangheng1,2; Sun Luchao1; Wang Jingyang1 |
| 刊名 | JOURNAL OF INORGANIC MATERIALS
 |
| 出版日期 | 2024-06-20 |
| 卷号 | 39期号:6页码:671-+ |
| 关键词 | YAG(Y3Al5O12)/Al2O3 atmospheric plasma spraying environmental barrier coating CMAS corrosion resistance grain boundary corrosion heat-treatment temperature |
| ISSN号 | 1000-324X |
| DOI | 10.15541/jim20240001 |
| 通讯作者 | Sun Luchao(lcsun@imr.ac.cn) ; Wang Jingyang(jywang@imr.ac.cn) |
| 英文摘要 | The investigation of novel materials exhibiting exceptional resistance to calcium-magnesium-aluminum-silicate (CMAS) corrosion at temperatures of 1300. and above has emerged as a pivotal objective in the advancement of environmental barrier coatings for aircraft engines in recent years. In this study, atmospheric plasma spraying (APS) technology was employed to fabricate YAG( Y3Al5O12)/Al2O3 coatings with eutectic composition, which was acknowledged as a promising material possessing outstanding CMAS corrosion resistance, thereby rendering it suitable for application in environmental barrier coatings. The as-deposited coatings were annealed at 1100, 1300, and 1500 degrees C to obtain different microstructures, and the corrosion resistance as well as mechanism of YAG/Al2O3 coatings against CMAS were investigated by comparing the corrosion results after exposure to CMAS at 1300 degrees C. The reaction products between YAG/Al2O3 coatings and CMAS were found to be garnet- structure solid solution, CaAl2Si2O8, and Ca2MgSi2O7. The nearly continuous distribution of the garnet- structure solid solution layer at the reaction interface between YAG/Al2O3 coating annealed at 1100 degrees C and CMAS effectively impedes the diffusion of CMAS corrosion elements. For YAG/Al2O3 coating annealed at 1500 degrees C, the increase in grain size and decrease in grain boundaries reduce the dissolution rate of the coating. Both of the above can affect the competitive precipitation of various products by influencing the ion transport rate in the corrosion process, and then improve the CMAS corrosion resistance of the coating. Moreover, heat-treatment temperature can tailor grain size, which influences both dissolution-precipitation rate and competitive precipitation of reaction products during CMAS corrosion. These findings provide guidance for selecting appropriate heat-treatment temperature and offer a novel approach to optimize CMAS corrosion resistance of YAG/Al2O3 coatings through microstructure optimization. |
| 资助项目 | National Natural Science Foundation of China[52130204] ; National Natural Science Foundation of China[U21A2063] ; National Key R&D Program of China[2021YFB3702300] ; Liaoning Revitalization Talents Program[XLYC2002018] ; Liaoning Revitalization Talents Program[XLYC2203090] ; International Partnership Program of the Chinese Academy of Sciences[172GJHZ2022094FN] |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001261645500009 |
| 出版者 | SCIENCE PRESS |
| 资助机构 | National Natural Science Foundation of China ; National Key R&D Program of China ; Liaoning Revitalization Talents Program ; International Partnership Program of the Chinese Academy of Sciences |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Sun Luchao; Wang Jingyang |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li Jie,Luo Zhixin,Cui Yang,et al. CMAS Corrosion Resistance of Y3Al5O12/Al2O3 Ceramic Coating Deposited by Atmospheric Plasma Spraying[J]. JOURNAL OF INORGANIC MATERIALS,2024,39(6):671-+. |
| APA | Li Jie,Luo Zhixin,Cui Yang,Zhang Guangheng,Sun Luchao,&Wang Jingyang.(2024).CMAS Corrosion Resistance of Y3Al5O12/Al2O3 Ceramic Coating Deposited by Atmospheric Plasma Spraying.JOURNAL OF INORGANIC MATERIALS,39(6),671-+. |
| MLA | Li Jie,et al."CMAS Corrosion Resistance of Y3Al5O12/Al2O3 Ceramic Coating Deposited by Atmospheric Plasma Spraying".JOURNAL OF INORGANIC MATERIALS 39.6(2024):671-+. |
入库方式： OAI收割
来源：金属研究所
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