Method for growing crystalline materials
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United States of America Patent
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-
May 26, 1981
Grant Date -
N/A
app pub date -
Nov 6, 1978
filing date -
Nov 6, 1978
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Improvement in the method for growing crystalline materials by seed pulling from a melt whereby crystalline product produced is substantially free of voids and/or inclusions which were previously caused by the continuous feeding operation. The improved method comprises feeding the source material through a bed of particulate refractory material whereby entrained gases in the melting feed material are eliminated thereby resulting in a crystalline product which is substantially free of voids and inclusions.
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