公开(公告)号：US20190009339A1

公开(公告)日：2019-01-10

申请号：US16066534

申请日：2016-12-19

申请人： ELEMENT SIX (UK) LIMITED

发明人： VALENTINE KANYANTA ,  MIRIAM MIRANDA-FERNANDEZ ,  JONEE CHRISTINE PAREDES ZUNEGA ,  XIAOXUE ZHANG ,  MEHMET SERDAR OZBAYRAKTAR

IPC分类号： B22F3/11 ,  C04B38/00 ,  C04B38/04 ,  C04B41/00 ,  C04B41/45 ,  C04B41/51 ,  C04B41/50 ,  B32B18/00 ,  C22C1/08 ,  C22C26/00 ,  C22C29/06 ,  E21B10/567 ,  E21B10/573 ,  B24D3/10 ,  B24D3/18 ,  B24D3/26 ,  B24D3/32

CPC分类号： B22F3/11 ,  B22F2005/001 ,  B24D3/10 ,  B24D3/18 ,  B24D3/26 ,  B24D3/32 ,  B24D99/005 ,  B32B18/00 ,  C04B35/528 ,  C04B35/645 ,  C04B38/0038 ,  C04B38/0045 ,  C04B38/04 ,  C04B41/009 ,  C04B41/4586 ,  C04B41/5002 ,  C04B41/5133 ,  C04B41/5144 ,  C04B2235/3217 ,  C04B2235/427 ,  C04B2235/5436 ,  C04B2235/80 ,  C04B2237/363 ,  C04B2237/401 ,  C22C1/08 ,  C22C26/00 ,  C22C29/06 ,  E21B10/567 ,  E21B10/5735

摘要： A superhard polycrystalline construction comprises a body of polycrystalline superhard material comprising a structure comprising superhard material, the structure having porosity greater than 20% by volume and up to around 80% by volume. A method of forming such a superhard polycrystalline construction comprises forming a skeleton structure of a first material having a plurality of voids, at least partially filling some or all of the voids with a second material to form a pre-sinter assembly, and treating the pre-sinter assembly to sinter together grains of superhard material to form a body of polycrystalline superhard material comprising a first region of superhard grains, and an interpenetrating second region; the second region being formed of the other of the first or second material that does not comprise the superhard grains; the superhard grains forming a sintered structure having a porosity greater than 20% by volume and up to around 80% by volume.