Diamond film and solid diamond particle composite compositions
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United States of America Patent
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May 11, 1999
Issued Date -
N/A
app pub date -
Oct 20, 1994
filing date -
Mar 30, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Porous and non-porous compositions include diamond particles, non-diamond particles, or mixtures of particles consolidated with polycrystalline diamond. The composite compositions of the present invention may be formed by a process which includes the steps of preforming the particles into a preform having a desired shape, and consolidating the preform with polycrystalline diamond. The polycrystalline diamond is preferably formed using CVD techniques including application of sufficient microwave energy to maintain the preform at a temperature of between about 670.degree. and 850.degree. C. The preform may be rotated during a portion of the deposition process.
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