Stability of Ba(B0.9Al0.1)2O4 molten zone by floating-zone technique on the ground

被引:6
作者
Jia, X
Miyazaki, A
Kimura, H
机构
[1] Natl Res Inst Met, Tsukuba, Ibaraki 3050047, Japan
[2] Inst DEO, Rifu, Miyagi 9810121, Japan
关键词
containerless process; floating-zone apparatus and molten zone stability;
D O I
10.1016/S0022-0248(99)00741-1
中图分类号
O7 [晶体学];
学科分类号
0702 ; 070205 ; 0703 ; 080501 ;
摘要
A stability of Ba(B0.9Al0.1)(2)O-4 molten zone was investigated for a containerless process by a modified floating-zone technique under a normal gravity condition on the ground. In this technique, a pair of Pt tubes was used at an upper and a lower position. It was difficult to form a long and stable molten zone using a pair of Pt tubes with the same diameter due to the gravity. On the other hand, a long and a stable molten zone was formed using a large diameter Pt tube at the upper position. The length of the molten zone was enough for the containerless process. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:850 / 854
页数:5
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