Introduction of low strain energy GdAlO3 grain boundaries into directionally solidified Al2O3/GdAlO3 eutectics
文献类型：期刊论文
| 作者 | Wang, Xu4; Zhang, Wen4; Zhong, Yujie3; Sun, Luchao2; Hu, Qiaodan1; Wang, Jingyang2 |
| 刊名 | ACTA MATERIALIA
 |
| 出版日期 | 2021-12-01 |
| 卷号 | 221页码:11 |
| 关键词 | Directional solidification Interface structure Low energy defects Low strain energy grain boundary |
| ISSN号 | 1359-6454 |
| DOI | 10.1016/j.actamat.2021.117355 |
| 通讯作者 | Wang, Xu(xwang@alum.imr.ac.cn) ; Zhong, Yujie(yjzhong@xsyu.edu.cn) ; Hu, Qiaodan(qdhu@sjtu.edu.cn) |
| 英文摘要 | In order to tune the mechanical properties of the Al2O3/GdAlO3 (GAP) eutectic ceramics, low energy GAP grain boundaries (GBs) were introduced into Al2O3/GAP eutectic ceramics. We prepared single-crystal Al2O3/bi-crystal GAP eutectic ceramics with the directional solidification technique, in which the Al2O3 was single-crystal, but the GAP was bi-crystal. The crystallographic orientation relationships between Al2O3 and GAP was determined as [10 (1) over bar0] Al2O3 parallel to [001] GAP-I parallel to [1 (1) over bar0]GAP-II, (11 (2) over bar0) Al2O3 parallel to (200) GAP-I, (11 (2) over bar0) Al2O3 parallel to (112) GAP-II, and (110) GAP-I parallel to (110) GAP-II. Such GAP GB had ultra-low strain energy. The phase boundaries (PBs) strain energies are higher than that of the GAP GB. However, the difference in the interfacial strain energy between the two PBs was quite small. The reason for the successful preparation of single-crystal Al2O3/bi-crystal GAP eutectic ceramics was attributed to almost the same driving force requirements for the two PBs during solidification. We envisaged that the concept of interfacial structure design could open new pathways for high-performance materials design. (C) 2021 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. |
| 资助项目 | National Natural Science Foundation of China[52171046] ; National Natural Science Foundation of China[51804252] ; National Natural Science Foundation of China[51922068] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000715042300005 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.imr.ac.cn/handle/321006/167193]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Wang, Xu; Zhong, Yujie; Hu, Qiaodan |
| 作者单位 | 1.Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Shanghai 200240, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Xian Shiyou Univ, Sch Mat Sci & Engn, Xian 710065, Peoples R China 4.Xian Univ Technol, Sch Mat Sci & Engn, Xian 710048, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Xu,Zhang, Wen,Zhong, Yujie,et al. Introduction of low strain energy GdAlO3 grain boundaries into directionally solidified Al2O3/GdAlO3 eutectics[J]. ACTA MATERIALIA,2021,221:11. |
| APA | Wang, Xu,Zhang, Wen,Zhong, Yujie,Sun, Luchao,Hu, Qiaodan,&Wang, Jingyang.(2021).Introduction of low strain energy GdAlO3 grain boundaries into directionally solidified Al2O3/GdAlO3 eutectics.ACTA MATERIALIA,221,11. |
| MLA | Wang, Xu,et al."Introduction of low strain energy GdAlO3 grain boundaries into directionally solidified Al2O3/GdAlO3 eutectics".ACTA MATERIALIA 221(2021):11. |
入库方式： OAI收割
来源：金属研究所
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