POLYCRYSTALLINE DIAMOND COMPACTS, METHODS OF MAKING SAME, AND APPLICATIONS THEREFOR
摘要
In an embodiment, a polycrystalline diamond compact ("PDC") comprises a cemented carbide substrate including a first cemented carbide portion exhibiting a first concentration of chromium carbide and a second cemented carbide portion bonded to the first cemented carbide portion and exhibiting a second concentration of chromium carbide that is greater than the first concentration. The PDC further comprises a polycrystalline diamond ("PCD") table bonded to the first cemented carbide portion. The PCD table includes a plurality of bonded diamond grains exhibiting diamond-to-diamond bonding therebetween, with the plurality of bonded diamond grains defining a plurality of interstitial regions. The PCD table includes chromium present in a concentration less than about 0.25 weight %.
申请公布号
WO2011081924(A1)
申请公布日期
2011.07.07
申请号
WO2010US60261
申请日期
2010.12.14
申请人
US SYNTHETIC CORPORATION;MUKHOPADHYAY, DEBKUMAR;BERTAGNOLLI, KENNETH, E.;GONZALEZ, JAIR, J.
发明人
MUKHOPADHYAY, DEBKUMAR;BERTAGNOLLI, KENNETH, E.;GONZALEZ, JAIR, J.