Low stress, water-clear zinc sulfide
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United States of America Patent
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Oct 29, 2002
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N/A
app pub date -
Jan 13, 2001
filing date -
Apr 7, 1999
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Abstract
The machinability of water-clear zinc sulfide articles produced by chemical vapor deposition and high temperature, high isostatic pressure (HIP) treatment is enhanced by extending the time over which the article is cooled following the HIP treatment. The resulting low stress, water-clear zinc sulfide articles can be more accurately finished/machined to precise shapes, such as are required in optical applications, than was previously possible.
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