Methods of forming polycrystalline compacts

    公开(公告)号:US09889542B2

    公开(公告)日:2018-02-13

    申请号:US15379878

    申请日:2016-12-15

    Abstract: Methods for forming cutting elements, methods for forming polycrystalline compacts, and related polycrystalline compacts are disclosed. Grains of a hard material are subjected to a high-pressure, high-temperature process to form a polycrystalline compact. Inclusion of at least one relatively quick spike in system pressure or temperature during an otherwise plateaued temperature or pressure stage accommodates formation of inter-granular bonds between the grains. The brevity of the peak stage may avoid undesirable grain growth. Embodiments of the methods may also include at least one of oscillating at least one system condition (e.g., pressure, temperature) and subjecting the grains to ultrasonic or mechanical vibrations. A resulting polycrystalline compact may include a high density of inter-granularly bonded hard material with a minimized amount of catalyst material, and may provide improved thermal stability, wear resistance, toughness, and behavior during use of a cutting element incorporating the polycrystalline compact.

    High pressure high temperature cell
    28.
    发明授权
    High pressure high temperature cell 有权
    高压高温电池

    公开(公告)号:US09586376B2

    公开(公告)日:2017-03-07

    申请号:US13836396

    申请日:2013-03-15

    CPC classification number: B30B15/34 B01J3/067 B30B11/004

    Abstract: A high-pressure high-temperature cell including two or more thermal insulation layers is described. A high-pressure high-temperature cell including a current path through a thermal insulation layer, the current path being electrically connected to a heating element and having an indirect path through the thermal insulation layer, is also described. High-pressure high-temperature press systems including the foregoing high-pressure high-temperature cells alone or in combination are also disclosed.

    Abstract translation: 描述包括两个或更多个绝热层的高压高温电池。 还描述了包括通过绝热层的电流路径的高压高温电池,电流路径电连接到加热元件并且具有穿过绝热层的间接路径。 还公开了包括上述高压高温电池单独或组合的高压高温压机系统。

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