The analysis of mass transfer in system β-SiC-α-SiC under silicon carbide sublimation growth

被引:28
作者
Avrov, DD [1 ]
Bakin, AS [1 ]
Dorozhkin, SI [1 ]
Rastegaev, VP [1 ]
Tairov, YM [1 ]
机构
[1] St Petersburg Electrotech Univ, Dept Microelect, St Petersburg 197376, Russia
关键词
mass transfer; silicon carbide; sublimation growth; crysallization;
D O I
10.1016/S0022-0248(98)01215-9
中图分类号
O7 [晶体学];
学科分类号
0702 ; 070205 ; 0703 ; 080501 ;
摘要
The aim of the present paper is to discuss our results of the investigation (both theoretical and experimental) of mass transfer in the beta-SiC-alpha-SiC system in conditions of about zero temperature gradient. Growth temperature was in the range 1800-2300 degrees C. Modeling of growth of silicon carbide crystals have been carried out both for vacuum (10(-3) Pa) and for a gas (nitrogen, argon or their mixture) atmosphere. The gas pressure was in the range 10(2)-10(5) Pa. Growth rate in the range from 0.01 to 1.5 mm/h for growth in vacuum and 0.001-0.15 mm/h for growth in gas have been calculated. Experimental results obtained are in a good agreement with theoretically predicted ones. (C) 1999 Published by Elsevier Science B.V. All rights reserved.
引用
收藏
页码:1011 / 1014
页数:4
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