Ultrasound effect on the Czochralski growth of corundum crystals

被引：0
|
作者：
S. D. Vyshnevskiy
E. V. Kryvonosov
L. A. Lytvynov
机构：
[1] National Academy of Sciences of Ukraine,Institute of Single Crystals
来源：
Inorganic Materials | 2009年 / 45卷
关键词：
Bubble Size; Acoustic Vibration; Sapphire Crystal; Corundum Crystal; Czochralski Growth;
D O I：
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中图分类号：
学科分类号：
摘要：
We have studied the effect of ultrasound in the range 100–400 kHz on the Czochralski growth of corundum single crystals in a carbon-containing medium. The results demonstrate that sonication during crystal growth influences the size and density of gas bubbles in the melt. At frequencies above 350 kHz, sonication contributes to the bubble rejection at the growth front, thereby reducing the pore density in the crystal.
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页码：1009 / 1012
页数：3
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