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Polycrystalline Diamond

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metass

metass

Materials
Joined
Sep 11, 2006
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7
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US
What is the true temperature at which grahitization of diamond occurs? I have read that for Co-based PDC's above 700°C the diamond layer disintegrates. Is this due to graphitization of diamond or a consequence of the Co expanding and the diamond dropping out?
 
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