CONTROL OF CRYSTAL-MELT INTERFACE SHAPE DURING GROWTH OF LITHIUM-NIOBATE SINGLE-CRYSTAL

被引：18

作者：

HIRATA, A ^{[1
]}

TACHIBANA, M ^{[1
]}

SUGIMOTO, T ^{[1
]}

OKANO, Y ^{[1
]}

FUKUDA, T ^{[1
]}

机构：

[1] TOHOKU UNIV,INST MAT RES,AOBA KU,SENDAI,MIYAGI 980,JAPAN

来源：

JOURNAL OF CRYSTAL GROWTH | 1993年 / 131卷 / 1-2期

关键词：

D O I：

10.1016/0022-0248(93)90407-N

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The control of crystal-melt interface shape during Czochralski (CZ) growth of lithium niobate (LiNbO3, LN) single crystal by crystal rotation was studied experimentally. The critical crystal rotation rate where inversion of crystal-melt interface occurred was evaluated from the weight change of grown crystal under various conditions. With application of these and previous experimental results to our previous theoretical results for the crystal-melt interface, it can be said that the Marangoni convection is dominant in the melt and correlation equations based on the Marangoni convection for controlling crystal-melt interface shape are proposed.

引用

页码：145 / 152

页数：8

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