| Preparation and microstructure of large-sized directionally solidified Al2O3/Y3Al5O12 eutectics with the seeding technique | |
| Wang, Xu1; Zhang, Wen1; Xian, Quangang2; Shen, Jian2; Zhang, Gong2; Wang, Dong2; Wang, Jingyang3; Lou, Langhong2; Zhang, Jian2,3 | |
| Corresponding Author | Wang, Xu(xwang@alum.imr.ac.cn) |
| 2018-12-01 | |
| Source Publication | JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
 |
| ISSN | 0955-2219 |
| Volume | 38Issue:16Pages:5625-5631 |
| Abstract | A large-sized Al2O3/Y3Al5O12 (YAG) eutectic single crystal is successfully prepared with the external seed by a modified Bridgman furnace. The microstructure, crystallography and interface structure of the large-sized Al2O3/YAG eutectic are well investigated. It is found that the longitudinal eutectic microstructure shows large length-to-width phase ratios. The crystallographic orientation relationship of the as-obtained large-sized Al2O/YAG eutectic is consistent with that of the seed. The epitaxial solidification of the binary eutectic occurs, and the dominating of the seed is not lost in the long-range growth. The observed Al2O3/YAG interface structure is studied by near-coincidence site lattice (NCSL) theory. The volume strain for the NCSL is very low (0.02), which suggests that the interfaces have locally low interfacial energies. This small volume strain might be the reason for stable induced-growth along the seed. |
| Keyword | Al2O3/YAG eutectic ceramics Orientation Microstructure Interfaces |
| Funding Organization | National Natural Science Foundation of China ; Equipment Pre-Research Foundation of China ; Doctoral Starting Fund of Xi'an University of Technology |
| DOI | 10.1016/j.jeurceramsoc.2018.07.011 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[51804252] ; Equipment Pre-Research Foundation of China[6140759040102] ; Equipment Pre-Research Foundation of China[6140923040203] ; Doctoral Starting Fund of Xi'an University of Technology[101-451116013] |
| WOS Research Area | Materials Science |
| WOS Subject | Materials Science, Ceramics |
| WOS ID | WOS:000447117700044 |
| Publisher | ELSEVIER SCI LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/129929 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Wang, Xu |
| Affiliation | 1.Xian Univ Technol, Sch Mat Sci & Engn, 5 South Jinhua Rd, Xian 710048, Shaanxi, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Superalloy Div, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China |
| Recommended Citation GB/T 7714 | Wang, Xu,Zhang, Wen,Xian, Quangang,et al. Preparation and microstructure of large-sized directionally solidified Al2O3/Y3Al5O12 eutectics with the seeding technique[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2018,38(16):5625-5631. |
| APA | Wang, Xu.,Zhang, Wen.,Xian, Quangang.,Shen, Jian.,Zhang, Gong.,...&Zhang, Jian.(2018).Preparation and microstructure of large-sized directionally solidified Al2O3/Y3Al5O12 eutectics with the seeding technique.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,38(16),5625-5631. |
| MLA | Wang, Xu,et al."Preparation and microstructure of large-sized directionally solidified Al2O3/Y3Al5O12 eutectics with the seeding technique".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 38.16(2018):5625-5631. |
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