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    Methods of forming polycrystalline diamond
    4.
    发明授权
    Methods of forming polycrystalline diamond 有权

    公开(公告)号：US09945185B2

    公开(公告)日：2018-04-17

    申请号：US14291862

    申请日：2014-05-30

    申请人： Baker Hughes Incorporated

    发明人： Marc W. Bird

    IPC分类号： E21B10/567 ,  B24D18/00 ,  B24D99/00 ,  E21B10/55

    CPC分类号： E21B10/567 ,  B01J3/00 ,  B01J2203/062 ,  B01J2203/0655 ,  B01J2203/0685 ,  B24D18/0009 ,  B24D99/005 ,  E21B10/55

    摘要： A method of forming polycrystalline diamond includes encapsulating diamond particles, carbon monoxide, and carbon dioxide in a container. The encapsulated diamond particles, carbon monoxide, and carbon dioxide are subjected to a pressure of at least 4.5 GPa and a temperature of at least 1400° C. to form inter-granular bonds between the diamond particles. A cutting element includes polycrystalline diamond material comprising inter-bonded grains of diamond. The polycrystalline diamond material is substantially free of graphitic carbon and metallic compounds. The polycrystalline diamond material exhibits a density of at least about 3.49 g/cm3 and a modulus of at least about 1000 GPa. An earth-boring tool may include such a cutting element secured to a body.

    POLYCRYSTALLINE COMPACTS, EARTH-BORING TOOLS INCLUDING SUCH COMPACTS, AND METHODS OF FABRICATING POLYCRYSTALLINE COMPACTS
    7.
    发明申请
    POLYCRYSTALLINE COMPACTS, EARTH-BORING TOOLS INCLUDING SUCH COMPACTS, AND METHODS OF FABRICATING POLYCRYSTALLINE COMPACTS 审中-公开
    聚合物复合材料，包括这种复合材料的接地工具以及制备聚合物复合材料的方法

    公开(公告)号：US20170037688A1

    公开(公告)日：2017-02-09

    申请号：US15297882

    申请日：2016-10-19

    申请人： Baker Hughes Incorporated

    发明人： Valery N. Khabashesku ,  Vladimir P. Filonenko

    IPC分类号： E21B10/567 ,  B24D3/06 ,  B24D18/00

    CPC分类号： E21B10/567 ,  B01J3/062 ,  B01J2203/062 ,  B01J2203/063 ,  B01J2203/0635 ,  B01J2203/0645 ,  B01J2203/0655 ,  B01J2203/066 ,  B01J2203/0665 ,  B01J2203/067 ,  B01J2203/0685 ,  B24D3/06 ,  B24D18/0009

    摘要： A polycrystalline compact includes diamond, cubic boron nitride, and at least one hard material, which may be aluminum nitride, gallium nitride, silicon nitride, titanium nitride, silicon carbide, titanium carbide, titanium boride, titanium diboride, and/or aluminum boride. The diamond, the cubic boron nitride, and the hard material are intermixed and interbonded to form a polycrystalline material. An earth-boring tool includes a bit body and a polycrystalline diamond compact secured to the bit body. Methods of fabricating polycrystalline compacts include forming a mixture comprising diamond, non-cubic boron nitride, and a metal or semimetal; encapsulating the mixture in a container; and subjecting the encapsulated mixture to high-pressure and high-temperature conditions to form a polycrystalline material.

    摘要翻译： 多晶结构体包括金刚石，立方氮化硼和至少一种硬质材料，其可以是氮化铝，氮化镓，氮化硅，氮化钛，碳化硅，碳化钛，硼化钛，二硼化钛和/或硼化铝。 将金刚石，立方氮化硼和硬质材料混合并键合以形成多晶材料。 钻孔工具包括固定在钻头体上的钻头体和多晶金刚石块。 制造多晶压块的方法包括形成包含金刚石，非立方氮化硼和金属或半金属的混合物; 将混合物包封在容器中; 并将包封的混合物经受高压和高温条件以形成多晶材料。

    METHODS OF FABRICATING A POLYCRYSTALLINE DIAMOND COMPACT
    9.
    发明申请
    METHODS OF FABRICATING A POLYCRYSTALLINE DIAMOND COMPACT 审中-公开
    制造多晶金刚石紧凑件的方法

    公开(公告)号：US20160136785A1

    公开(公告)日：2016-05-19

    申请号：US15005765

    申请日：2016-01-25

    申请人： US SYNTHETIC CORPORATION

    发明人： Debkumar Mukhopadhyay ,  Jair J. Gonzalez

    IPC分类号： B24D3/06 ,  B24D18/00 ,  E21B10/56

    CPC分类号： B24D3/06 ,  B01J3/062 ,  B01J2203/062 ,  B01J2203/0655 ,  B01J2203/0685 ,  B24D18/0009 ,  B24D99/005 ,  C04B35/528 ,  E21B10/46 ,  E21B10/56

    摘要： Embodiments relate to polycrystalline diamond compacts (“PDCs”) and methods of manufacturing such PDCs in which an at least partially leached polycrystalline diamond (“PCD”) table is infiltrated with a low viscosity cobalt-based alloy infiltrant. In an embodiment, a method includes forming a PCD table in the presence of a metal-solvent catalyst in a first high-pressure/high-temperature (“HPHT”) process. The method includes at least partially leaching the PCD table to remove at least a portion of the metal-solvent catalyst therefrom to form an at least partially leached PCD table. The method includes subjecting the at least partially leached PCD table and a substrate to a second HPHT process effective to at least partially infiltrate the at least partially leached PCD table with a cobalt-based alloy infiltrant having a composition at or near a eutectic composition of the cobalt-based alloy infiltrant.

    摘要翻译： 实施例涉及多晶金刚石压块（“PDC”）以及制造这样的PDC的方法，其中至少部分浸出的多晶金刚石（“PCD”）工作台用低粘度钴基合金渗透剂渗透。 在一个实施方案中，一种方法包括在第一高压/高温（“HPHT”）方法中在金属溶剂催化剂存在下形成PCD表。 该方法包括至少部分浸出PCD表以从其中除去至少一部分金属 - 溶剂催化剂以形成至少部分浸出的PCD台。 该方法包括使至少部分浸出的PCD台和基板经受有效的至少部分浸渗的PCD台的第二HPHT方法，所述第二HPHT工艺具有钴基合金浸渗剂，所述钴基合金浸渗剂具有或接近共晶组成 钴基合金浸润剂。

    Methods of forming polycrystalline diamond compacts
    10.
    发明授权
    Methods of forming polycrystalline diamond compacts 有权
    形成多晶金刚石压块的方法

    公开(公告)号：US09302236B2

    公开(公告)日：2016-04-05

    申请号：US13622530

    申请日：2012-09-19

    申请人： Baker Hughes Incorporated

    发明人： Anthony A. DiGiovanni ,  Danny E. Scott

    IPC分类号： B01J3/06 ,  B24D3/14 ,  B24D18/00 ,  B24D99/00 ,  E21B10/567

    CPC分类号： B24D18/0009 ,  B01J3/062 ,  B01J3/067 ,  B01J2203/062 ,  B01J2203/0655 ,  B01J2203/0685 ,  B24D3/14 ,  B24D99/005 ,  E21B10/55 ,  E21B10/567

    摘要： Methods for forming cutting elements comprising polycrystalline materials, methods for forming polycrystalline compacts for cutting elements of a drilling tool, methods for forming polycrystalline diamond compacts, and resulting polycrystalline compacts and cutting elements are disclosed. Grains of a hard material are introduced to a press and subjected to a high-pressure, high-temperature (HPHT) process to sinter the grains. The system conditions (i.e., temperature and pressure) are then adjusted past a phase or state change point, after which, at least one of the system conditions is held during an anneal stage before the system conditions are adjusted to final levels. The resulting compacts and cutting elements may therefore include inter-granularly bonded hard material grains with a more stable microstructure (e.g., less stressed microstructure) than a polycrystalline compact and cutting element formed without an anneal stage during the HPHT process.

    摘要翻译： 公开了用于形成包括多晶材料的切割元件的方法，用于形成用于切割钻孔工具的元件的多晶压块的方法，用于形成多晶金刚石压块的方法，以及所得到的多晶压块和切割元件。 将硬质材料的颗粒引入压机中并进行高压高温（HPHT）工艺以烧结晶粒。 然后将系统条件（即，温度和压力）调整到相位或状态变化点之后，在将系统条件调整到最终水平之前，在退火阶段期间保持至少一个系统条件。 因此，所形成的压块和切割元件可以包括与在HPHT处理期间不具有退火阶段形成的多晶压块和切割元件相比，具有更稳定的微结构（例如，较不受应力的微结构）的颗粒间结合的硬质材料颗粒。