Methods of forming polycrystalline compacts
    1.
    发明授权
    Methods of forming polycrystalline compacts 有权
    形成多晶压块的方法

    公开(公告)号:US09034062B2

    公开(公告)日:2015-05-19

    申请号:US13095348

    申请日:2011-04-27

    摘要: Methods of forming a polycrystalline compact for use in an earth-boring tool include sintering a plurality of hard particles with catalyst material to form a polycrystalline material that includes a plurality of inter-bonded particles of hard material integrally formed with the catalyst material and introducing at least a portion of the polycrystalline material to a reactive material to remove at least a portion of the catalyst material contained within the polycrystalline material. The reactive material may include at least one of a molten glass, an ionic compound, a leaching liquor, and a chemical plasma. The reactive material may be introduced to the polycrystalline material at a temperature of greater than or equal to a melting point thereof.

    摘要翻译: 形成用于镗孔工具的多晶压块的方法包括用催化剂材料烧结多个硬颗粒,以形成多晶材料,该多晶材料包括多个与催化剂材料一体形成的硬质材料的互相结合的颗粒并在 将多晶材料的至少一部分转化成反应性材料以除去多晶材料中所含的催化剂材料的至少一部分。 反应性材料可以包括熔融玻璃,离子化合物,浸出液和化学等离子体中的至少一种。 反应性材料可以在大于或等于其熔点的温度下引入多晶材料。

    Method of shaping a polycrystalline diamond body
    4.
    发明授权
    Method of shaping a polycrystalline diamond body 失效
    多晶金刚石体的成型方法

    公开(公告)号:US5665252A

    公开(公告)日:1997-09-09

    申请号:US501632

    申请日:1995-07-12

    申请人: Sungho Jin Wei Zhu

    发明人: Sungho Jin Wei Zhu

    摘要: The method of shaping a polycrystalline diamond (PCD) body (exemplarily a wafer of CVD-PCD) utilizes our discovery that the rate and amount of diamond removal from a given region of a PCD body depends, for a given metal "etchant" at a given temperature, on the thickness of the etchant layer overlying the given region, with relatively larger etchant thickness being associated with relatively higher removal rate and amount. Exemplarily, the method can be used to substantially remove thickness variations and/or film curvature from as-produced PCD films. An exemplary metal that can be used in the practice of the invention is mischmetal. The metal etchant can be molten, partially molten or solid.

    摘要翻译: 成型多晶金刚石(PCD)体(例如CVD-PCD的晶片)的方法利用我们的发现,从PCD体的给定区域去除金刚石的速率和量取决于给定的金属“蚀刻剂” 给定温度,覆盖给定区域的蚀刻剂层的厚度,相对较大的蚀刻剂厚度与相对较高的去除速率和量相关联。 示例性地,该方法可用于基本上从生产的PCD膜中去除厚度变化和/或膜弯曲。 可用于本发明实践中的示例性金属是混合稀土。 金属蚀刻剂可以熔融,部分熔融或固体。

    Surface preparation of ceramic substrates for metallization
    6.
    发明授权
    Surface preparation of ceramic substrates for metallization 失效
    用于金属化的陶瓷基板的表面处理

    公开(公告)号:US4701352A

    公开(公告)日:1987-10-20

    申请号:US679835

    申请日:1984-12-10

    摘要: A process for preparing a ceramic substrate for metallization wherein a surface of the ceramic substrate is contacted with a composition containing one or more alkali metal compounds, preferably in the form of solid pellets. The pellets are melted on the ceramic surface. As the pellets melt, advancing waves of the molten composition spread across and wet the ceramic surface. The molten alkali metal composition is kept in contact with the ceramic surface for a time period sufficient to etch the surface and thus prepare it for adherent deposition of metal. The moving waves of melting composition supply fresh alkali metal compounds at the ceramic surface. After adhesion promotion, the ceramic surface is treated with compounds that promote adsorption of catalyst for metal deposition before being plated with metal. Uniform surface coverage with catalyst and metal and an improved adherent bond of metal to the ceramic surface are obtained. Furthermore, an article comprised of metal directly and adherently bonded onto a ceramic substrate is provided, the bond strength exceeding about 25 MPa.

    摘要翻译: 一种制备用于金属化的陶瓷基板的方法,其中陶瓷基板的表面与含有一种或多种碱金属化合物的组合物接触,优选为固体颗粒形式。 颗粒在陶瓷表面上熔化。 当颗粒熔化时,熔融组合物的前进波展开并润湿陶瓷表面。 使熔融的碱金属组合物与陶瓷表面保持接触足够的时间以蚀刻表面,从而制备其用于金属的粘附沉积。 熔融成分的移动波在陶瓷表面提供新鲜的碱金属化合物。 在粘合促进之后,陶瓷表面用金属化合物处理以促进金属沉积催化剂的吸附。 获得具有催化剂和金属的均匀表面覆盖率和改善金属与陶瓷表面的粘合键。 此外,提供由直接粘附在陶瓷基板上的金属组成的制品,其粘合强度超过25MPa。

    METHODS OF FORMING POLYCRYSTALLINE COMPACTS
    10.
    发明申请
    METHODS OF FORMING POLYCRYSTALLINE COMPACTS 有权
    形成聚合物复合物的方法

    公开(公告)号:US20110258936A1

    公开(公告)日:2011-10-27

    申请号:US13095348

    申请日:2011-04-27

    IPC分类号: B24D3/06 E21B10/46 B24D18/00

    摘要: Methods of forming a polycrystalline compact for use in an earth-boring tool include sintering a plurality of hard particles with catalyst material to faun a polycrystalline material that includes a plurality of inter-bonded particles of hard material integrally formed with the catalyst material and introducing at least a portion of the polycrystalline material to a reactive material to remove at least a portion of the catalyst material contained within the polycrystalline material. The reactive material may include at least one of a molten glass, an ionic compound, a leaching liquor, and a chemical plasma. The reactive material may be introduced to the polycrystalline material at a temperature of greater than or equal to a melting point thereof.

    摘要翻译: 形成用于镗孔工具的多晶压块的方法包括用催化剂材料烧结多个硬颗粒以使多晶材料包覆多个材料,所述多晶材料包括多个与催化剂材料一体形成的硬质材料的互相结合的颗粒并在 将多晶材料的至少一部分转化成反应性材料以除去多晶材料中所含的催化剂材料的至少一部分。 反应性材料可以包括熔融玻璃,离子化合物,浸出液和化学等离子体中的至少一种。 反应性材料可以在大于或等于其熔点的温度下引入多晶材料。