公开(公告)号：US20180036696A1

公开(公告)日：2018-02-08

申请号：US15553667

申请日：2016-02-26

申请人： Element Six (UK) Limited

发明人： Nedret CAN ,  Sedigheh SALEHI

IPC分类号： B01J3/06 ,  E21B10/573 ,  C04B35/645 ,  C04B37/02 ,  C04B35/5831 ,  B32B18/00 ,  C04B35/528

CPC分类号： B01J3/062 ,  B01J2203/062 ,  B01J2203/0655 ,  B01J2203/0685 ,  B32B18/00 ,  C04B35/528 ,  C04B35/5831 ,  C04B35/645 ,  C04B37/025 ,  C04B37/026 ,  C04B2235/427 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/5472 ,  C04B2235/96 ,  C04B2237/064 ,  C04B2237/12 ,  C04B2237/122 ,  C04B2237/361 ,  C04B2237/363 ,  C04B2237/401 ,  C04B2237/704 ,  C04B2237/708 ,  C04B2237/72 ,  E21B10/5735

摘要： A superhard polycrystalline construction (30) comprises a first region (34) comprising a body of thermally stable polycrystalline superhard material having an exposed surface forming a working surface (4), and a peripheral side edge (6), a second region (32) forming a substrate to the first region, and a third region (36) at least partially interposed between the first and second regions wherein the third region comprises a material more acid resistant than polycrystalline diamond material having a binder-catalyst phase comprising cobalt, and/or more acid resistant than cemented carbide material.