公开(公告)号：WO2014011420A1

公开(公告)日：2014-01-16

申请号：PCT/US2013/048666

申请日：2013-06-28

Applicant: DIAMOND INNOVATIONS, INC.

Inventor： DUES, Lawrence Thomas ,  SELINDER, Torbjorn Ingemar

IPC: B23B27/14 ,  B32B18/00 ,  C23C28/04

CPC classification number: B22F7/06 ,  B23B27/148 ,  B32B18/00 ,  C04B35/5831 ,  C04B35/645 ,  C04B2235/3217 ,  C04B2235/3244 ,  C04B2235/3843 ,  C04B2235/3856 ,  C04B2235/386 ,  C04B2235/3865 ,  C04B2235/3886 ,  C04B2235/75 ,  C04B2237/361 ,  C04B2237/582 ,  C04B2237/704 ,  C23C28/044 ,  Y10T428/23 ,  Y10T428/26 ,  Y10T428/266 ,  Y10T428/31678

Abstract: A polycrystalline cubic boron nitride (PcBN) is fabricated using a process of overlaying layers of cubic boron nitride (cBN) powder, where the layers have cBN mixed with various concentrations of a ceramic. The process of fabricating the PcBN includes depositing, in a refractory capsule, a carbide, a cubic boron nitride (cBN), and a mixture of cBN and a ceramic, then applying a high pressure and high temperature (HPHT) to the content of the refractory capsule. During the depositing step of the process, the concentration of cBN in the mixture of the cBN and ceramic is lower than the concentration of cBN that is in the layer below it. Upon applying HPHT, the carbide first diffuses across the cBN layer, and then diffuses across the layer with the mixture of the cBN and ceramic. After HPHT ends and the content of the refractory capsule cools, the process yields a PcBN having layers with various concentrations of cBN, and at least one cBN layer with a ceramic material.

Abstract translation: 使用叠加立方氮化硼（cBN）粉末的方法制造多晶立方氮化硼（PcBN），其中层具有与各种浓度的陶瓷混合的cBN。 制造PcBN的过程包括在耐火胶囊中沉积碳化物，立方氮化硼（cBN）以及cBN和陶瓷的混合物，然后将高压和高温（HPHT）施加到 耐火胶囊。 在该方法的沉积步骤中，cBN和陶瓷的混合物中cBN的浓度低于在其下面的层中的cBN的浓度。 在施加HPHT后，碳化物首先扩散到cBN层上，然后用cBN和陶瓷的混合物扩散到该层。 在HPHT结束并且耐火胶囊的内容物冷却后，该方法产生具有不同浓度cBN的层的PcBN和至少一个具有陶瓷材料的cBN层。