Cubic boron nitride and its gas phase synthesis method
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United States of America Patent
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May 7, 2002
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N/A
app pub date -
Mar 7, 2000
filing date -
Dec 27, 1999
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Expired
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Abstract
Cubic boron nitride which is obtained from a gas phase without using an ultra-high pressure and which distinctly shows, in the Raman spectrum, either characteristic scattering by phonon of an optical longitudinal wave mode at 1305.+-.15 cm.sup.-1 or characteristic scattering by phonon of an optical transverse wave mode at 1056.+-.15 cm.sup.-1, or both characteristic scatterings.
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