公开(公告)号：US10737327B2

公开(公告)日：2020-08-11

申请号：US16066534

申请日：2016-12-19

Applicant: ELEMENT SIX (UK) LIMITED

Inventor： Valentine Kanyanta ,  Miriam Miranda-Fernandez ,  Jonee Christine Paredes Zunega ,  Xiaoxue Zhang ,  Mehmet Serdar Ozbayraktar

IPC: B24D99/00 ,  B24D3/10 ,  B24D3/18 ,  B24D3/26 ,  B24D3/32 ,  E21B10/567 ,  E21B10/573 ,  B22F3/11 ,  C22C1/08 ,  C22C26/00 ,  B32B18/00 ,  C22C29/06 ,  C04B35/528 ,  C04B35/645 ,  C04B38/00 ,  C04B38/04 ,  C04B41/00 ,  C04B41/45 ,  C04B41/50 ,  C04B41/51 ,  B22F5/00

Abstract: 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.

公开(公告)号：US10329848B2

公开(公告)日：2019-06-25

申请号：US15322603

申请日：2015-07-01

Applicant: Element Six (UK) Limited

Inventor： Maweja Kasonde ,  Mehmet Serdar Ozbayraktar ,  Valentine Kanyanta ,  Teresa Rodriguez Suarez

IPC: B24D18/00 ,  E21B10/573 ,  B28B1/00 ,  B28B1/24 ,  B28B11/12 ,  B33Y10/00

Abstract: A super hard polycrystalline construction comprises a body of polycrystalline super hard material, said body having an exposed working surface, a substrate attached to the body of polycrystalline super hard material along an interface and a plurality of apertures or channels. One or more of said apertures or channels extend(s) from the exposed working surface of the body into the substrate.

公开(公告)号：US10472288B2

公开(公告)日：2019-11-12

申请号：US15324171

申请日：2015-07-06

Applicant: Element Six (UK) Limited

Inventor： Antionette Can ,  Anne Myriam Megne Motchelaho ,  Mehmet Serdar Ozbayraktar

IPC: C04B35/5831 ,  C04B35/65 ,  B23B27/14 ,  C04B35/626 ,  C04B35/63 ,  C04B35/645 ,  C22C26/00 ,  B22F5/00

Abstract: A composite material and a method of using the composite material. The composite material consists of at least 65 volume percent cubic boron nitride (cBN) grains dispersed in a binder matrix, the binder matrix comprising a plurality of microstructures bonded to the cBN grains and a plurality of intermediate regions between the cBN grains; the microstructures comprising nitride or boron compound of a metal; and the intermediate regions including a silicide phase containing the metal chemically bonded with silicon; in which the content of the silicide phase is 2 to 6 weight percent of the composite material, and in which the cBN grains have a mean size of 0.2 to 20 μm.