Polycrystalline diamond composite
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United States of America Patent
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Sep 29, 2009
Grant Date -
Apr 14, 2005
app pub date -
Sep 14, 2004
filing date -
Oct 8, 2003
priority date (Note) -
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Abstract
An apparatus and method of forming a composite body including the steps of forming a diamond material layer having a first surface from diamond crystals having a nitrogen content of less than 100 ppm; providing a substrate; and bonding the first surface of the diamond material layer and the substrate under high pressure and high temperature. The composite body has a diamond material layer formed from diamond crystals having a nitrogen content of less than 100 ppm. The diamond material layer has a first surface and a substrate. The first surface of the diamond material layer and the substrate are bonded together under high pressure and high temperature.
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