MASS-TRANSPORT PHENOMENA DURING SOLIDIFICATION IN MICROGRAVITY - PRELIMINARY-RESULTS OF THE 1ST MEPHISTO FLIGHT EXPERIMENT

被引：37

作者：

FAVIER, JJ ^{[1
]}

GARANDET, JP ^{[1
]}

ROUZAUD, A ^{[1
]}

CAMEL, D ^{[1
]}

机构：

[1] CEN GRENOBLE,CEA,DTA,CEREM,DEM,SESC,F-38054 GRENOBLE 9,FRANCE

来源：

JOURNAL OF CRYSTAL GROWTH | 1994年 / 140卷 / 1-2期

关键词：

D O I：

10.1016/0022-0248(94)90517-7

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The MEPHISTO space facility flew on the Columbia space shuttle in October 1992. The preliminary scientific results, mainly based on the analysis of the Seebeck signal, are presented in this paper. Valuable information was obtained for both planar and cellular solidification regimes. It is shown that mass transfer in the melt during the flight was principally diffusive; however, even in microgravity, slow growth rates may result in significant convective transport. A tentative interpretation of the Seebeck signal for destabilized interfaces is also proposed.

引用

页码：237 / 243

页数：7

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