CAPSULE ASSEMBLIES FOR ULTRA-HIGH PRESSURE PRESSES AND METHODS FOR USING THEM

    公开(公告)号:US20180214836A1

    公开(公告)日:2018-08-02

    申请号:US15745793

    申请日:2016-07-27

    Abstract: A capsule assembly for an ultra-high pressure furnace, comprising a containment tube having an interior side surface and defining a central longitudinal axis; a chamber suitable for accommodating a reaction assembly, a proximate and a distal end heater assembly, and a side heater assembly. When assembled, the chamber is contained within the containment tube and arranged longitudinally between the proximate and distal end heater assemblies. The side heater assembly is disposed adjacent the interior side surface and electrically connects the end heater assemblies with each other. Each end heater assembly has a respective peripheral side disposed adjacent the interior side surface Heat is produced in the chamber in response to an electric current flowing through the end and side heater assemblies. At least a proximate side heater barrier spaces apart the side heater assembly from at least the proximate end heater assembly, adjacent its peripheral side, operative to prevent a portion of the side heater assembly from intruding between the peripheral side of the proximate end heater assembly and the containment tube and short-circuiting at least part of the proximate end heater assembly, when the end heater assemblies move towards each other in response to a force applied by the ultra-high pressure furnace onto the capsule assembly along the central longitudinal axis.

    POLYCRYSTALLINE DIAMOND COMPACTS, METHODS OF FORMING SAME, AND EARTH-BORING TOOLS
    36.
    发明申请
    POLYCRYSTALLINE DIAMOND COMPACTS, METHODS OF FORMING SAME, AND EARTH-BORING TOOLS 审中-公开
    多晶金刚石复合材料,其形成方法和接地工具

    公开(公告)号:US20170067293A1

    公开(公告)日:2017-03-09

    申请号:US14848619

    申请日:2015-09-09

    Abstract: A method of forming a polycrystalline diamond compact comprises providing metallized diamond particles including diamond particles including nanograins of a sweep catalyst secured thereto, the sweep catalyst comprising at least one of tungsten and tungsten carbide and constituting between about 0.01 weight percent and about 1.0 weight percent of the metallized diamond particles and placing the metallized diamond particles and a metal solvent catalyst in a container. The metallized diamond particles are subjected to a high-temperature, high-pressure process in the presence of the metal solvent catalyst to form a polycrystalline diamond material having inter-bonded diamond grains and nanograins of tungsten carbide, the nanograins of tungsten carbide covering less than about twenty percent of a surface area of the inter-bonded diamond grains. Polycrystalline diamond compacts and earth-boring tools including the polycrystalline diamond compacts are also disclosed.

    Abstract translation: 形成多晶金刚石复合体的方法包括提供包括金刚石颗粒的金属化金刚石颗粒,所述金刚石颗粒包括金刚石颗粒,其包括固定在其上的扫掠催化剂的纳米晶粒,所述清扫催化剂包含钨和碳化钨中的至少一种,并且构成约0.01重量%至约1.0重量% 金属化金刚石颗粒并将金属化金刚石颗粒和金属溶剂催化剂置于容器中。 金属化金刚石颗粒在金属溶剂催化剂存在下进行高温高压处理,以形成具有相互结合的金刚石晶粒和碳化钨纳米晶粒的多晶金刚石材料,碳化钨的纳米晶粒覆盖小于 约20%的结合金刚石晶粒的表面积。 还公开了多晶金刚石压块和包括多晶金刚石压块的钻孔工具。

    Polycrystalline compacts and methods of formation
    37.
    发明授权
    Polycrystalline compacts and methods of formation 有权
    多晶压块和形成方法

    公开(公告)号:US09522455B2

    公开(公告)日:2016-12-20

    申请号:US14743159

    申请日:2015-06-18

    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.

    Abstract translation: 公开了用于形成切割元件的方法,用于形成多晶压块的方法和相关的多晶压块。 对硬质材料的颗粒进行高压高温处理以形成多晶压块。 在另外的平稳温度或压力阶段期间,将系统压力或温度中的至少一个相对较快的峰值包含在晶粒间形成颗粒间结合。 高峰阶段的简洁可以避免不必要的晶粒生长。 方法的实施例还可以包括振荡至少一个系统状态(例如,压力,温度)和使晶粒经受超声或机械振动中的至少一个。 所得到的多晶压块可以包括具有最小量的催化剂材料的高密度颗粒间结合的硬质材料,并且可以在使用结合多晶压块的切割元件时提供改善的热稳定性,耐磨性,韧性和性能。

    POLYCRYSTALLINE DIAMOND MATERIALS HAVING IMPROVED ABRASION RESISTANCE, THERMAL STABILITY AND IMPACT RESISTANCE
    40.
    发明申请
    POLYCRYSTALLINE DIAMOND MATERIALS HAVING IMPROVED ABRASION RESISTANCE, THERMAL STABILITY AND IMPACT RESISTANCE 有权
    具有改善耐磨性,耐热稳定性和耐冲击性的多晶金刚石材料

    公开(公告)号:US20130067827A1

    公开(公告)日:2013-03-21

    申请号:US13676070

    申请日:2012-11-13

    Abstract: PCD materials comprise a diamond body having bonded diamond crystals and interstitial regions disposed among the crystals. The diamond body is formed from diamond grains and a catalyst material at high pressure/high temperature conditions. The diamond grains have an average particle size of about 0.03 mm or greater. At least a portion of the diamond body has a high diamond volume content of greater than about 93 percent by volume. The entire diamond body can comprise high volume content diamond or a region of the diamond body can comprise the high volume content diamond. The diamond body includes a working surface, a first region substantially free of the catalyst material, and a second region that includes the catalyst material. At least a portion of the first region extends from the working surface to depth of from about 0.01 to about 0.1 mm

    Abstract translation: PCD材料包括具有结合的金刚石晶体和布置在晶体之间的间隙区域的金刚石体。 金刚石体在高压/高温条件下由金刚石晶粒和催化剂材料形成。 金刚石晶粒的平均粒径为约0.03mm以上。 金刚石体的至少一部分具有大于约93体积%的高金刚石体积含量。 整个钻石体可以包括高体积的钻石,或者金刚石体的区域可以包括高体积的钻石。 金刚石体包括工作表面,基本上不含催化剂材料的第一区域和包括催化剂材料的第二区域。 第一区域的至少一部分从工作表面延伸至约0.01至约0.1mm的深度

Patent Agency Ranking