Phase identification of Al2O3/RE3Al5O12 and Al2O3/REAlO3 (RE = Sm-Lu,Y) eutectics

被引：63
作者：
Yoshikawa, A
Hasegawa, K
Lee, JH
Durbin, SD
Epelbaum, BM
Yoon, DH
Fukuda, T
Waku, Y
机构：
[1] Tohoku Univ, Inst Sci Mat, Aoba Ku, Sendai, Miyagi 9808577, Japan
[2] Japan Ultrahigh Temp Mat Res Ctr, Ube, Yamaguchi 7550001, Japan
[3] Sungkyunkwan Univ, Sch Met & Mat Engn, Suwon 440476, South Korea
来源：
JOURNAL OF CRYSTAL GROWTH | 2000年 / 218卷 / 01期
关键词：
oxide eutectic; fiber; micro-pulling-down method; microstructure;
D O I：
10.1016/S0022-0248(00)00516-9
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
Growth of various kinds of eutectic fibers based on Al2O3 and oxides of Y and rare earths from Sm to Lu using micro-pulling-down (mu-PD) method was investigated. The effect of rare-earth element substitution on growth, microstructure and mechanical properties are discussed, Eutectic materials were classified into Al2O3/garnet system and Al2O3/perovskite system types at the boundary between Gd and Tb. Al2O3/garnet eutectic fibers showed superior high-temperature strength properties. This is the first systematic study of the characteristics of these eutectic materials. (C) 2000 Elsevier Science B.V. All rights reserved.
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收藏
页码：67 / 73
页数：7
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