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 |
US8216677(B2) |
申请公布日期 |
2012.07.10 |
申请号 |
US20090649784 |
申请日期 |
2009.12.30 |
申请人 |
MUKHOPADHYAY DEBKUMAR;BERTAGNOLLI KENNETH E;GONZALEZ JAIR J;US SYNTHETIC CORPORATION |
发明人 |
MUKHOPADHYAY DEBKUMAR;BERTAGNOLLI KENNETH E;GONZALEZ JAIR J |
分类号 |
B32B9/00 |
主分类号 |
B32B9/00 |
代理机构 |
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代理人 |
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