Microstructure Evolution of Plasma- Sprayed MoSi2 Coating at RT-1200 degrees C in Air
文献类型：期刊论文
| 作者 | Niu, Yaran; Zhai, Cuihong; Wang, Guocheng1; Huang, Liping; Zheng, Xuebin; Ding, Chuanxian |
| 刊名 | JOURNAL OF THERMAL SPRAY TECHNOLOGY
 |
| 出版日期 | 2018 |
| 卷号 | 27期号:6页码:938 |
| 关键词 | heat treatment microstructure evolution MoSi2 coating oxidation vacuum plasma spray |
| ISSN号 | 1059-9630 |
| DOI | 10.1007/s11666-018-0730-2 |
| 英文摘要 | In this work, the phase composition and microstructure evolution of vacuum plasma-sprayed MoSi2 coating between room temperature and 1200 degrees C in air was evaluated and characterized. The results showed that hexagonal MoSi2 (h-MoSi2) became the main phase in the deposited coating, which remained even after 50 h oxidation at 500 degrees C, exhibiting excellent thermal stability. MoO3 bundles and SiO2 clusters were generated by consuming tetragonal MoSi2 (t-MoSi2) after 1 h, and white powders formed on the coating's surface after 10-h exposure to air at 500 degrees C. Most h-MoSi2 transformed to t-MoSi2 at 800 degrees C; moreover, a protective silica layer formed on the coating surface. Similar phenomenon was observed for the coating exposed to 1000 degrees C where grain growth also occurred. Vacuum heat treatment at 900 degrees C effectively improved the thermal stability of the MoSi2 coating. The formation of silica layer alleviated negative effects of structural defects and helped the MoSi2 coating serve as a protective coating for varied substrates. |
| 学科主题 | Materials Science, Coatings & Films |
| WOS记录号 | WOS:000441984900003 |
| 出版者 | SPRINGER |
| 源URL | [http://ir.sic.ac.cn/handle/331005/24754]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Inorgan Coating Mat CAS, Shanghai 200050, Peoples R China 2.Chinese Acad Sci, Shenzhen Inst Adv Technol, Res Ctr Human Tissues & Organs Degenerat, Shenzhen 518055, Guangdong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Niu, Yaran,Zhai, Cuihong,Wang, Guocheng,et al. Microstructure Evolution of Plasma- Sprayed MoSi2 Coating at RT-1200 degrees C in Air[J]. JOURNAL OF THERMAL SPRAY TECHNOLOGY,2018,27(6):938, 948. |
| APA | Niu, Yaran,Zhai, Cuihong,Wang, Guocheng,Huang, Liping,Zheng, Xuebin,&Ding, Chuanxian.(2018).Microstructure Evolution of Plasma- Sprayed MoSi2 Coating at RT-1200 degrees C in Air.JOURNAL OF THERMAL SPRAY TECHNOLOGY,27(6),938. |
| MLA | Niu, Yaran,et al."Microstructure Evolution of Plasma- Sprayed MoSi2 Coating at RT-1200 degrees C in Air".JOURNAL OF THERMAL SPRAY TECHNOLOGY 27.6(2018):938. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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