发明名称 |
POLYCRYSTALLINE DIAMOND COMPACT INCLUDING A CEMENTED TUNGSTEN CARBIDE SUBSTRATE THAT IS SUBSTANTIALLY FREE OF TUNGSTEN CARBIDE GRAINS EXHIBITING ABNORMAL GRAIN GROWTH AND APPLICATIONS THEREFOR |
摘要 |
Embodiments relate to polycrystalline diamond compacts (“PDCs”) including a polycrystalline diamond (“PCD”) table that is substantially free of defects formed due to abnormal grain growth of tungsten carbide grains, and methods of fabricating such PDCs. In an embodiment, a PDC comprises a cemented tungsten carbide substrate including an interfacial surface that is substantially free of tungsten carbide grains exhibiting abnormal grain growth, and a PCD table bonded to the interfacial surface of the cemented tungsten carbide substrate. The PCD table includes a plurality of bonded diamond grains defining a plurality of interstitial regions. At least a portion of the interstitial regions includes a metal-solvent catalyst disposed therein. The PCD table may be substantially free of chromium or the PCD table and the cemented tungsten carbide substrate may each include chromium. |
申请公布号 |
EP2401101(A1) |
申请公布日期 |
2012.01.04 |
申请号 |
EP20100708004 |
申请日期 |
2010.02.10 |
申请人 |
U.S. SYNTHETIC CORPORATION |
发明人 |
MUKHOPADHYAY, DEBKUMAR;BERTAGNOLLI, KENNETH, E.;SANI, MOHAMMAD, N. |
分类号 |
B22F7/06;E21B10/573 |
主分类号 |
B22F7/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|