发明名称 |
POLYCRYSTALLINE DIAMOND COMPACTS INCLUDING AT LEAST ONE TRANSITION LAYER AND METHODS FOR STRESS MANAGEMENT IN POLYCRSYSTALLINE DIAMOND COMPACTS |
摘要 |
Embodiments relate to polycrystalline diamond compacts (PDCs) that are less susceptible to liquid metal embrittlement damage due to the use of at least one transition layer between a polycrystalline diamond (PCD) layer and a substrate. In an embodiment, a PDC includes a PCD layer, a cemented carbide substrate, and at least one transition layer bonded to the substrate and the PCD layer. The at least one transition layer is formulated with a coefficient of thermal expansion (CTE) that is less than a CTE of the substrate and greater than a CTE of the PCD layer. At least a portion of the PCD layer includes diamond grains defining interstitial regions and a metal-solvent catalyst occupying at least a portion of the interstitial regions. The diamond grains and the catalyst collectively exhibit a coercivity of about 115 Oersteds or more and a specific magnetic saturation of about 15 Gauss·cm3/grams or less.
|
申请公布号 |
US2012261197(A1) |
申请公布日期 |
2012.10.18 |
申请号 |
US201113087775 |
申请日期 |
2011.04.15 |
申请人 |
MIESS DAVID P.;BERTAGNOLLI KENNETH E.;CROCKETT DAMON B.;COOPER ARNOLD D.;US SYNTHETIC CORPORATION |
发明人 |
MIESS DAVID P.;BERTAGNOLLI KENNETH E.;CROCKETT DAMON B.;COOPER ARNOLD D. |
分类号 |
E21B10/55;B01J3/06;B24D3/10;E21B10/42;E21B10/567 |
主分类号 |
E21B10/55 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|