公开(公告)号：US06951578B1

公开(公告)日：2005-10-04

申请号：US09637092

申请日：2000-08-10

申请人： Daniel J. Belnap ,  Nathan R. Anderson ,  Zhigang Fang ,  Anthony Griffo ,  Brian A. White

发明人： Daniel J. Belnap ,  Nathan R. Anderson ,  Zhigang Fang ,  Anthony Griffo ,  Brian A. White

IPC分类号： B01J3/06 ,  C22C26/00 ,  E21B10/52 ,  B32B9/00

CPC分类号： E21B10/52 ,  B01J3/065 ,  B01J2203/062 ,  C22C26/00

摘要： PCD materials of this invention comprise diamond crystals that are bonded together with a catalyst/binder material. The PCD material is prepared by combining diamond grains with a catalyst/binder material either as a premixture or by infiltration during sintering. The PCD material comprises 15 percent by volume or less diamond grains sized 20 micrometers or less. The diamond grains are pressurized under elevated temperature conditions to form the desired PCD material. PCD materials of this invention can constitute the exclusive material phase of a PCD construction, or can form one or more material phase in a multi-phase material microstructure, wherein the multiple material phase can be arranged in an ordered/oriented or random fashion. PCD materials of this invention display improved properties of impact and fatigue resistance, and functional toughness, when used in complex wear environments, when compared to conventional PCs materials comprising intentionally added fine-sized diamond grains.

摘要翻译： 本发明的PCD材料包括与催化剂/粘合剂材料结合在一起的金刚石晶体。 通过将金刚石晶粒与催化剂/粘合剂材料组合作为预混合物或通过在烧结期间的渗透来制备PCD材料。 PCD材料包括15微摩尔或更小的15体积％或更少的金刚石颗粒。 金刚石晶粒在高温条件下被加压以形成所需的PCD材料。 本发明的PCD材料可以构成PCD结构的独特材料相，或者可以在多相材料微结构中形成一个或多个材料相，其中多个材料相可以以有序/定向或随机的方式布置。 当与常规的包含有意添加的精细尺寸的金刚石颗粒的材料相比时，本发明的PCD材料在复杂的磨损环境中使用时显示改善的冲击和抗疲劳性能以及功能性韧性。