Preparation and microstructure of large-sized directionally solidified Al2O3/Y3Al5O12 eutectics with the seeding technique

doi:10.1016/j.jeurceramsoc.2018.07.011

CORC > 金属研究所 > 中国科学院金属研究所

	Preparation and microstructure of large-sized directionally solidified Al2O3/Y3Al5O12 eutectics with the seeding technique
	Wang, X ; Zhang, W ; Xian, QG ; Shen, J 1; Zhang, G 1; Wang, D 1; Wang, JY ; Lou, LH ; Zhang, J 1,2
刊名	JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
	2018-12-01
卷号	38 期号:16 页码:5625-5631
关键词	Al2O3/YAG eutectic ceramics Orientation Microstructure Interfaces
ISSN号	0955-2219
DOI	10.1016/j.jeurceramsoc.2018.07.011
英文摘要	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.
学科主题	Materials Science, Ceramics
语种	英语
WOS记录号	WOS:000447117700044
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/79799]
专题	金属研究所_中国科学院金属研究所
作者单位	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
推荐引用方式 GB/T 7714	Wang, X,Zhang, W,Xian, QG,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, X.,Zhang, W.,Xian, QG.,Shen, J.,Zhang, G.,...&Zhang, J.(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, X,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.