Phase composition and property evolution of (Yb1-xHox)(2)Si2O7 solid solution as environmental/thermal barrier coating candidates
文献类型：期刊论文
| 作者 | Lv, Xirui1,2; Cui, Jingping2; Zhang, Jie2; Wang, Jingyang2 |
| 刊名 | JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
 |
| 出版日期 | 2022-08-01 |
| 卷号 | 42期号:10页码:4377-4387 |
| ISSN号 | 0955-2219 |
| 关键词 | RE disilicates Solid solution Phase evolution Property |
| DOI | 10.1016/j.jeurceramsoc.2022.04.020 |
| 通讯作者 | Zhang, Jie(jiezhang@imr.ac.cn) ; Wang, Jingyang(jywang@imr.ac.cn) |
| 英文摘要 | RE disilicates are good candidates as environmental/thermal barrier coating for SiCf/SiC composite in harsh gas turbine engines. We designed (Yb1-xHox)(2)Si2O7 solid solutions and studied mechanical properties, thermal properties, and water vapor resistance. Powders with different compositions were synthesized by pressureless sintering, and bulk samples were prepared by Spark Plasma Sintering (SPS). Polymorphic changes with temperature and composition of the solid solutions were examined. Through doping Ho into Yb2Si2O7, water vapor corrosion resistance is significantly promoted, and thermal expansion coefficient is maintained close to that of Si based ceramics. Compared with host disilicates, thermal conductivity of solid solutions are decreased, and mechanical properties, including Vickers hardness and fracture toughness, are increased. A two-phase domain is found at (Yb1/2Ho1/2)(2)Si2O7, and the gamma to delta phase transition of Ho2Si2O7 is observed during SPS. Among all samples, gamma-(Yb1/3Ho2/3)(2)Si2O7 possesses superior high temperature stability, and excellent water vapor resistance, indicating its performance as environmental/thermal barrier coating. |
| 资助项目 | National Science and Technology Major Project, China[2017-VI-0020-0093] ; International Cooperation Key Program, China[174321KYSB20180008] ; Key Research Program of the Chinese Academy of Sciences, China[ZDRW-CN-2021-2-2] ; Natural Science Foundation of China[51772302] ; Natural Science Foundation of Liaoning Province, China[2020-MS-006] ; LiaoNing Revitalization Talents Program, China[XLYC2002018] |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| WOS记录号 | WOS:000797940400001 |
| 资助机构 | National Science and Technology Major Project, China ; International Cooperation Key Program, China ; Key Research Program of the Chinese Academy of Sciences, China ; Natural Science Foundation of China ; Natural Science Foundation of Liaoning Province, China ; LiaoNing Revitalization Talents Program, China |
| 源URL | [http://ir.imr.ac.cn/handle/321006/174278]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Zhang, Jie; Wang, Jingyang |
| 作者单位 | 1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang, Peoples R China 2.Inst Met Sci & Technol, Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Shenyang, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lv, Xirui,Cui, Jingping,Zhang, Jie,et al. Phase composition and property evolution of (Yb1-xHox)(2)Si2O7 solid solution as environmental/thermal barrier coating candidates[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2022,42(10):4377-4387. |
| APA | Lv, Xirui,Cui, Jingping,Zhang, Jie,&Wang, Jingyang.(2022).Phase composition and property evolution of (Yb1-xHox)(2)Si2O7 solid solution as environmental/thermal barrier coating candidates.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,42(10),4377-4387. |
| MLA | Lv, Xirui,et al."Phase composition and property evolution of (Yb1-xHox)(2)Si2O7 solid solution as environmental/thermal barrier coating candidates".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 42.10(2022):4377-4387. |
入库方式： OAI收割
来源：金属研究所
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