发明名称 |
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 %.
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申请公布号 |
US2011067929(A1) |
申请公布日期 |
2011.03.24 |
申请号 |
US20090649784 |
申请日期 |
2009.12.30 |
申请人 |
US SYNTHETIC CORPORATION |
发明人 |
MUKHOPADHYAY DEBKUMAR;BERTAGNOLLI KENNETH E.;GONZALEZ JAIR J. |
分类号 |
E21B10/573;B24D3/04;E21B10/42;E21B10/55 |
主分类号 |
E21B10/573 |
代理机构 |
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