公开(公告)号：WO2016142368A3

公开(公告)日：2016-10-27

申请号：PCT/EP2016054886

申请日：2016-03-08

Applicant: ELEMENT SIX (UK) LTD

Inventor： CAN ANTIONETTE ,  MOTCHELAHO ANNE MYRIAM MEGNE

IPC: C04B35/528 ,  C04B35/5831 ,  C04B35/5835 ,  C04B35/624 ,  C04B35/628 ,  C04B35/645

CPC classification number: C04B35/645 ,  C04B35/528 ,  C04B35/5831 ,  C04B35/624 ,  C04B35/628 ,  C04B2235/3217 ,  C04B2235/3231 ,  C04B2235/3232 ,  C04B2235/3244 ,  C04B2235/3843 ,  C04B2235/3856 ,  C04B2235/3865 ,  C04B2235/3886

Abstract: A method of manufacturing a polycrystalline abrasive construction comprises providing a plurality of particles of a superhard material, the particles coated with a first matrix precursor material, providing a plurality of second matrix precursor particles having an average size less than 2 micron, the second matrix precursor particles including a liquid phase sintering agent, mixing together the plurality of particles of superhard material with particles of the second matrix precursor material and consolidating and sintering the particles of superhard material and the particles of matrix precursor material.A polycrystalline abrasive construction comprises a particles of a superhard material dispersed in a matrix material comprising a material derived from a liquid phase sintering aid and chemical barrier particles having an average particle size of less than 100nm dispersed in the matrix. Greater than 50% of the chemical barrier particles are located substantially at boundaries between superhard particles and the matrix.

Abstract translation: 一种制造多晶磨料结构的方法包括提供多个超硬材料颗粒，所述颗粒涂布有第一基体前体材料，提供多个平均尺寸小于2微米的第二基体前体颗粒，所述第二基体前体 包括液相烧结剂的颗粒，将所述多个超硬材料颗粒与所述第二基体前体材料的颗粒混合在一起，并且将所述超硬材料颗粒和所述基体前体材料颗粒固结并烧结。多晶磨料结构包括 分散在基质材料中的超硬材料，所述基质材料包含衍生自液相烧结助剂的材料和分散在所述基质中的平均粒度小于100nm的化学屏障颗粒。 大于50％的化学屏障颗粒基本位于超硬颗粒和基质之间的边界处。