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    Polycrystalline diamond compacts including a cemented carbide substrate and applications therefor
    44.
    发明授权
    Polycrystalline diamond compacts including a cemented carbide substrate and applications therefor 有权

    公开(公告)号：US09732563B1

    公开(公告)日：2017-08-15

    申请号：US13954545

    申请日：2013-07-30

    Applicant: US SYNTHETIC CORPORATION

    Inventor： Debkumar Mukhopadhyay

    IPC: B24D3/00 ,  B24D11/00 ,  B24D18/00 ,  B24D3/02 ,  C09K3/14 ,  E21B10/567 ,  E21B10/42 ,  E21B10/55

    CPC classification number: E21B10/567 ,  B24D99/005 ,  E21B10/42 ,  E21B10/55 ,  E21B10/5735

    Abstract: Embodiments relate to a polycrystalline diamond compact (“PDC”) including a polycrystalline diamond (“PCD”) table bonded to a cemented carbide substrate including tungsten carbide grains having a fine average grain size to provide one or more of enhanced wear resistance, corrosion resistance, or erosion resistance, and a PDC with enhanced impact resistance. In an embodiment, a PDC includes a cemented carbide substrate having a cobalt-containing cementing constituent cementing tungsten carbide grains together exhibiting an average grain size of about 1.5 μm or less. The substrate includes an interfacial surface and a depletion zone depleted of the cementing constituent that extends inwardly from the interfacial surface to a depth of, for example, about 30 μm to about 60 μm. The PDC includes a PCD table bonded to the interfacial surface of the substrate. The PCD table includes diamond grains bonded together exhibiting an average grain size of about 40 μm or less.

    POLYCRYSTALLINE DIAMOND COMPACT, AND RELATED METHODS AND APPLICATIONS
    49.
    发明申请
    POLYCRYSTALLINE DIAMOND COMPACT, AND RELATED METHODS AND APPLICATIONS 有权
    多晶金刚石复合材料及相关方法与应用

    公开(公告)号：US20150136495A1

    公开(公告)日：2015-05-21

    申请号：US14086283

    申请日：2013-11-21

    Applicant: US Synthetic Corporation

    Inventor： Cody William Knuteson ,  Paul Douglas Jones ,  Brandon P. Linford ,  Brent R. Eddy ,  Kenneth E. Bertagnolli ,  Debkumar Mukhopadhyay

    IPC: E21B10/567 ,  E21B10/573 ,  E21B10/55 ,  B24D3/10 ,  B24D18/00

    CPC classification number: E21B10/567 ,  B22F3/14 ,  B22F2005/001 ,  B22F2999/00 ,  B24D3/10 ,  B24D18/0009 ,  C22C26/00 ,  C22C29/08 ,  E21B10/55 ,  E21B10/5735 ,  B22F2207/01

    Abstract: Embodiments relate to polycrystalline diamond compacts (“PDCs”) including a polycrystalline diamond (“PCD”) table in which a metal-solvent catalyst is alloyed with at least one alloying element to improve thermal stability of the PCD table. In an embodiment, a PDC includes a substrate and a PCD table bonded to the substrate. The PCD table includes diamond grains defining interstitial regions. The PCD table includes an alloy comprising at least one Group VIII metal and at least one metallic alloying element that lowers a temperature at which melting of the at least one Group VIII metal begins. The alloy includes one or more solid solution phases comprising the at least one Group VIII metal and the at least one metallic alloying element and one or more intermediate compounds comprising the at least one Group VIII metal and the at least one metallic alloying element.

    Abstract translation: 实施例涉及包括多晶金刚石（“PCD”）表的多晶金刚石压块（“PDC”），其中金属溶剂催化剂与至少一种合金元素合金以提高PCD表的热稳定性。 在一个实施例中，PDC包括基板和与基板结合的PCD台。 PCD表包括定义间隙区域的金刚石颗粒。 PCD表包括包含至少一种VIII族金属和至少一种金属合金元素的合金，其降低至少一种VIII族金属的熔化开始的温度。 该合金包括一种或多种固溶体相，其包含至少一种第Ⅷ族金属和至少一种金属合金元素以及包含至少一种第Ⅷ族金属和至少一种金属合金元素的一种或多种中间体化合物。

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