COMBINED EFFECTS OF CRUCIBLE ROTATION AND HORIZONTAL MAGNETIC-FIELD ON DOPANT CONCENTRATION IN A CZOCHRALSKI MELT

被引：29

作者：

OZOE, H

IWAMOTO, M

机构：

[1] Institute of Advanced Material Study, Kyushu University, Kasuga, 816

来源：

JOURNAL OF CRYSTAL GROWTH | 1994年 / 142卷 / 1-2期

关键词：

D O I：

10.1016/0022-0248(94)90292-5

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Three-dimensional numerical computations were carried out for the melt in a Czochralski system under a lateral magnetic field at Gr = 10(7), Pr = 0.01, Re(rod) = 1620, Re(cru) = 0 or -3240, Ha = 0-1000 and Sc = 10. The fully three-dimensional velocity components, temperature and concentration profiles were obtained. The rotation of a crucible was found to decrease extensively the heat transfer rate and the concentration of dopant both in the melt and at the phase-change interface. Further application of strong magnetic field was found to increase the dopant concentration slightly due to the additional friction with the rotating crucible.

引用

页码：236 / 244

页数：9

共 15 条

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