Self-diffusion under microgravity and structure of group IVB liquids

被引:16
作者
Itami, T
Masaki, T
Aoki, H
Munejiri, S
Uchida, M
Matsumoto, S
Kamiyama, K
Hoshino, K
机构
[1] Hokkaido Univ, Grad Sch Sci, Div Chem, Sapporo, Hokkaido 0600810, Japan
[2] Natl Space Dev Agcy Japan, Tsukuba, Ibaraki 3058505, Japan
[3] Hokkaido Univ, Grad Sch Sci, Div Chem, Sapporo, Hokkaido 0600810, Japan
[4] Hokkaido Univ, Grad Sch Technol, Sapporo, Hokkaido 0608628, Japan
[5] Hiroshima Univ, Fac Integrated Arts & Sci, Kagamiyama 7398521, Japan
关键词
Capillarity - Melting - Space shuttles - Thermal effects;
D O I
10.1016/S0022-3093(02)01684-8
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The self-diffusion coefficient, D-S in liquid Sri was measured by a long capillary method in the microgravity environment of the space shuttle, and the validity of a microgravity effect was confirmed for the measurements of diffusion in melts with high melting temperatures. The data of this D-S under microgravity were well reproduced by calculations, particularly in the case closely related to liquid structures. A systematic microgravity experiment is required to obtain further insight and to develop a model for diffusion in group IVB liquids. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:177 / 181
页数:5
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