发明名称 |
THERMALLY STABLE DIAMOND POLYCRYSTALLINE DIAMOND CONSTRUCTIONS |
摘要 |
Thermally stable diamond constructions comprise a diamond body having a plurality of bonded diamond crystals, a plurality of interstitial regions disposed among the crystals, and a substrate attached to the body. The body includes a working surface and a side surface extending away from the working surface to the substrate. The body comprises a first region adjacent the side surface that is substantially free of a catalyst material and that extends a partial depth into the diamond body. The first region can further extend to at least a portion of the working surface and a partial depth therefrom into the diamond body. The diamond body can be formed from natural diamond grains and/or a mixture of natural and synthetic diamond grains. A surface of the diamond body is treated to provide the first region, and before treatment is finished to an approximate final dimension.
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申请公布号 |
US2010266816(A1) |
申请公布日期 |
2010.10.21 |
申请号 |
US20100820518 |
申请日期 |
2010.06.22 |
申请人 |
SMITH INTERNATIONAL, INC. |
发明人 |
EYRE RONALD K. |
分类号 |
B32B3/02;B32B3/00;B32B15/04 |
主分类号 |
B32B3/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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