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    Polycrystalline compacts having differing regions therein, cutting elements and earth-boring tools including such compacts, and methods of forming such compacts
    16.
    发明授权
    Polycrystalline compacts having differing regions therein, cutting elements and earth-boring tools including such compacts, and methods of forming such compacts 有权
    其中具有不同区域的多晶压块，包括这种压块的切割元件和钻孔工具以及形成这种压块的方法

    公开(公告)号：US08763731B2

    公开(公告)日：2014-07-01

    申请号：US13162864

    申请日：2011-06-17

    申请人： Danny E. Scott ,  Anthony A. DiGiovanni

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

    IPC分类号： E21B10/36 ,  E21B10/42

    CPC分类号： E21B10/55 ,  B22F3/14 ,  B22F7/02 ,  B22F7/062 ,  B24D3/10 ,  C22C23/00 ,  C22C26/00 ,  C22C2026/008 ,  E21B10/567 ,  E21B2010/545 ,  E21B2010/561 ,  Y10T428/249957 ,  Y10T428/25

    摘要： Polycrystalline compacts include a hard polycrystalline material comprising first and second regions. The first region comprises a first plurality of grains of hard material having a first average grain size, and a second plurality of grains of hard material having a second average grain size smaller than the first average grain size. The first region comprises catalyst material disposed in interstitial spaces between inter-bonded grains of hard material. Such interstitial spaces between grains of the hard material in the second region are at least substantially free of catalyst material. In some embodiments, the first region comprises a plurality of nanograins of the hard material. Cutting elements and earth-boring tools include such polycrystalline compacts. Methods of forming such polycrystalline compacts include removing catalyst material from interstitial spaces within a second region of a polycrystalline compact without entirely removing catalyst material from interstitial spaces within a first region of the compact.

    摘要翻译： 多晶压块包括包含第一和第二区域的硬质多晶材料。 第一区域包括具有第一平均晶粒尺寸的第一多个硬质材料颗粒和具有小于第一平均晶粒尺寸的第二平均晶粒尺寸的第二多个硬质材料颗粒。 第一区域包括设置在硬质材料的互相结合的颗粒之间的间隙空间中的催化剂材料。 第二区域中的硬质材料颗粒之间的间隙空间至少基本上不含催化剂材料。 在一些实施例中，第一区域包括多个硬质材料的纳米晶粒。 切割元件和钻孔工具包括这种多晶压块。 形成这种多晶压块的方法包括从多孔压块的第二区域内的间隙空间除去催化剂材料，而不从压块的第一区域内的间隙空间中完全除去催化剂材料。

    Methods of forming polycrystalline compacts
    17.
    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：US09067304B2

    公开(公告)日：2015-06-30

    申请号：US13618927

    申请日：2012-09-14

    申请人： Danny E. Scott ,  Anthony A. DiGiovanni

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

    IPC分类号： B24D3/00 ,  B24D3/14 ,  B24D18/00 ,  B24D99/00

    CPC分类号： B24D18/0009 ,  B01J3/06 ,  B01J2203/062 ,  B01J2203/0645 ,  B24D3/06 ,  B24D3/14 ,  B24D99/005 ,  E21B10/55

    摘要： 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.

    摘要翻译： 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尖峰包含在颗粒之间形成颗粒间结合。 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。

    METHODS OF FORMING POLYCRSTALLINE COMPACTS AND RESULTING COMPACTS
    19.
    发明申请
    METHODS OF FORMING POLYCRSTALLINE COMPACTS AND RESULTING COMPACTS 有权
    形成聚合物复合物和结果综合的方法

    公开(公告)号：US20130067825A1

    公开(公告)日：2013-03-21

    申请号：US13618927

    申请日：2012-09-14

    申请人： Danny E. Scott ,  Anthony A. DiGiovanni

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

    IPC分类号： B24D3/04 ,  B24D18/00

    CPC分类号： B24D18/0009 ,  B01J3/06 ,  B01J2203/062 ,  B01J2203/0645 ,  B24D3/06 ,  B24D3/14 ,  B24D99/005 ,  E21B10/55

    摘要： 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.

    摘要翻译： 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。 将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尖峰包含在颗粒之间形成颗粒间结合。 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。