A novel strategy to improve the corrosion resistance of SiCf/SiC composites in high-temperature combustion environments by cooperation of self-healing SiBCN and high-stability Yb2Si2O7
文献类型：期刊论文
| 作者 | Liang, Bin1; Ji, Suya1,2; Pang, Shengyang1; Hu, Chenglong1; Zhao, Rida1; Tang, Sufang1 |
| 刊名 | SURFACE & COATINGS TECHNOLOGY
 |
| 出版日期 | 2024-08-15 |
| 卷号 | 489页码:11 |
| 关键词 | Ceramic matrix composites SiCf/SiC SiBCN High temperature corrosion Yb2Si2O7 High temperature corrosion |
| ISSN号 | 0257-8972 |
| DOI | 10.1016/j.surfcoat.2024.131098 |
| 通讯作者 | Tang, Sufang(sftang@imr.ac.cn) |
| 英文摘要 | How to improve the resistance to water-oxygen-salt corrosion of SiCf/SiC composites is vital to their long-term service in the advanced aero-engines or gas turbines. SiCf/SiC-SiBCN-Yb2Si2O7 (SSY) self-healing composites were exposed to combustion environments at 1200-1350 degrees C for a long time up to 100 h. The dissolution of solid Yb2Si2O7 into low-viscosity glassy oxides derived mainly from oxidation of SiBCN leads to the formation of stable Yb2Si2O7-contianing multi-phase silicate which can inhibit the diffusion of corrosive media and alleviate corrosive damage of composites. After corrosion in H2O/O-2/Na2SO4 at 1200 degrees C and 1350 degree celsius, the strength retention rates of SSY are 96 % and 88 %, respectively, (6.4 +/- 0.9)% higher than those of SiCf/SiC-SiBCN (SS), due to the good cooperative protective effect of SiBCN-Yb2Si2O7. However, the insufficient dissolution of Yb2Si2O7 causes the formation of plenty of solid/liquid interfaces conductive to the diffusion of corrosive media in H2O/O-2 at 1200 degrees C and 1350 degrees C. As a result, the retention rates of flexural strengths of SSY are 100 % and 91 %, respectively, (2.5 +/- 0.5)% lower than those of SS. |
| 资助项目 | Research Fund of Youth Innovation Promotion Association of CAS, China[2021190] ; National Key Research and Development Program of China[2021YFA1500804] ; Natural Science Foundation of Liaoning Province[2022-MS-003] |
| WOS研究方向 | Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001325485500001 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | Research Fund of Youth Innovation Promotion Association of CAS, China ; National Key Research and Development Program of China ; Natural Science Foundation of Liaoning Province |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Tang, Sufang |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, 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 | Liang, Bin,Ji, Suya,Pang, Shengyang,et al. A novel strategy to improve the corrosion resistance of SiCf/SiC composites in high-temperature combustion environments by cooperation of self-healing SiBCN and high-stability Yb2Si2O7[J]. SURFACE & COATINGS TECHNOLOGY,2024,489:11. |
| APA | Liang, Bin,Ji, Suya,Pang, Shengyang,Hu, Chenglong,Zhao, Rida,&Tang, Sufang.(2024).A novel strategy to improve the corrosion resistance of SiCf/SiC composites in high-temperature combustion environments by cooperation of self-healing SiBCN and high-stability Yb2Si2O7.SURFACE & COATINGS TECHNOLOGY,489,11. |
| MLA | Liang, Bin,et al."A novel strategy to improve the corrosion resistance of SiCf/SiC composites in high-temperature combustion environments by cooperation of self-healing SiBCN and high-stability Yb2Si2O7".SURFACE & COATINGS TECHNOLOGY 489(2024):11. |
入库方式： OAI收割
来源：金属研究所
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