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Analysis of the profile curves of the menisci for the sapphire tubes growth by EFG (Stepanov) technique

✍ Scribed by S. N. Rossolenko; V. N. Kurlov; A. A. Asrian

Publisher: John Wiley and Sons
Year: 2009
Tongue: English
Weight: 344 KB
Volume: 44
Category: Article
ISSN: 0232-1300
DOI: 10.1002/crat.200900067

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✦ Synopsis

Abstract

This paper deals with investigation of the behavior of the profile curves of the melt menisci for the case of the sapphire crystal growth by EFG (Stepanov) technique. The cases of external and internal circular menisci of the crystal tube are considered. The cases of the positive and negative angles of the contact of the profile curve with the working surface of the shaper are considered. Features of the profile curves are used in the automated control systems of the crystal growth using of the weight sensor. (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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