公开(公告)号：US20130105232A1

公开(公告)日：2013-05-02

申请号：US13722250

申请日：2012-12-20

Applicant: US SYNTHETIC CORPORATION

Inventor： Michael A. Vail ,  Kenneth E. Bertagnolli ,  Jason Wiggins ,  Jiang Qian ,  David P. Miess

IPC: E21B10/46

CPC classification number: E21B10/46 ,  B01J3/062 ,  B01J2203/062 ,  B01J2203/0655 ,  B01J2203/0685

Abstract: Embodiments relate to methods of fabricating PCD materials by subjecting a mixture that exhibits a broad diamond particle size distribution to an HPHT process, PCD materials so-formed, and PDCs including a polycrystalline diamond table comprising such PCD materials. In an embodiment, a PCD material includes a plurality of bonded diamond grains that exhibit a substantially unimodal diamond grain size distribution characterized, at least in part, by a parameter θ that is less than about 1.0. θ = x 6 · σ , where x is the average grain size of the substantially unimodal diamond grain size distribution, and σ is the standard deviation of the substantially unimodal diamond grain size distribution.

Abstract translation: 实施方案涉及通过使表现出宽金刚石粒度分布的混合物经受HPHT方法，所形成的PCD材料和包括包含这种PCD材料的多晶金刚石台的PDC来制造PCD材料的方法。 在一个实施方案中，PCD材料包括多个结合的金刚石晶粒，其表现出基本上单峰金刚石晶粒尺寸分布，其至少部分地由小于约1.0的参数θ表征。 θ= x 6·sigma，其中x是基本上单峰金刚石晶粒尺寸分布的平均晶粒尺寸，σ是基本上单峰金刚石晶粒尺寸分布的标准偏差。