Estimation of the optimal conditions for directional crystal growth from the vapour phase with no contact between crystal and ampoule wall

1993 ◽  
Vol 128 (1-4) ◽  
pp. 609-612 ◽  
Author(s):  
Krzysztof Grasza
1992 ◽  
Vol 121 (4) ◽  
pp. 656-664 ◽  
Author(s):  
D. Stöber ◽  
B.O. Hildmann ◽  
H. Böttner ◽  
S. Schelb ◽  
K.-H. Bachem ◽  
...  

1999 ◽  
Author(s):  
Vivek Sahai ◽  
John W. Williamson

Abstract This study examines the effect of crucible conductivity in minimizing convection and solute segregation in a Bridgman crystal growth system. Crystal diameter to length ratios from 0.5 to 2.5 are considered. A quasi-steady state numerical method is used to model the directional solidification of gallium doped germanium. The coupled governing equations for the melt, solidified crystal, and the ampoule wall are solved subject to appropriate boundary and interface conditions to determine the velocity, temperature, and concentration distributions. Results are presented at reduced gravity and include the effects of reducing the dimensionless ampoule conductivity from 0.67 to 0.05.


1984 ◽  
Vol 69 (2-3) ◽  
pp. 399-403 ◽  
Author(s):  
K. Ishikawa ◽  
W. Tomoda ◽  
K. Toyoda
Keyword(s):  

1984 ◽  
Vol 19 (4) ◽  
pp. 441-446 ◽  
Author(s):  
M. V. Simonyan ◽  
L. S. Grigoryan ◽  
A. G. Gasparyan ◽  
E. G. Sharoyan
Keyword(s):  

1989 ◽  
Vol 2 (4) ◽  
pp. L1-L3 ◽  
Author(s):  
Seiji Motojima ◽  
Chie Ohashi ◽  
Tatsuhiko Hattori ◽  
Hiroshi Iwanaga

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