发明名称 |
THERMALLY STABLE POLYCRYSTALLINE DIAMOND AND METHODS OF MAKING THE SAME |
摘要 |
<p>A method of making a cutting element includes subjecting a mixture of diamond particles and a carbonate material to high-pressure high- temperature sintering conditions to form a sintered carbonate-polycrystalline diamond body having a diamond matrix of diamond grains bonded together and carbonates residing in the interstitial regions between the diamond grains, the carbonate material having a non-uniform distribution throughout the diamond matrix. The carbonate-polycrystalline diamond body is subjected to a controlled temperature, a controlled pressure condition or a combination thereof, to effect an at least partial decomposition of the carbonate material.</p> |
申请公布号 |
WO2015038574(A1) |
申请公布日期 |
2015.03.19 |
申请号 |
WO2014US54892 |
申请日期 |
2014.09.10 |
申请人 |
SMITH INTERNATIONAL, INC. |
发明人 |
BAO, YAHUA;ZHAO, LIANG;BELNAP, J. DANIEL;LIN, ZHIJUN |
分类号 |
E21B10/46;B24D3/06;B24D3/10 |
主分类号 |
E21B10/46 |
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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