Wear-resistant tool
AssigneesSumitomo Electric Industries, Ltd., A.L.M.T. Corp.
InventorsHitoshi Sumiya, Takeshi Sato, Makoto Yukawa, Bunya Suemitsu
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Abstract
A wear-resistant tool includes composite polycrystalline diamond as a core, the composite polycrystalline diamond being composed of polycrystalline diamond in which particulate diamond is directly bonded and non diamond carbon. The polycrystalline diamond in the composite polycrystalline diamond is three-dimensionally continuous in composite polycrystal and primary particles have an average particle size from 10 to 500 nm.
Claims12
A wear-resistant tool comprising composite polycrystalline diamond as a core, the composite polycrystalline diamond consisting essentially of polycrystalline diamond and non-diamond carbon, the polycrystalline diamond including a plurality of diamond particulates, and the plurality of diamond particulates are directly bonded to one another, the non-diamond carbon is dispersed in a surface which functions for machining of the wear-resistant tool, and a ratio of an area of non-diamond carbon to an area of the surface which functions for machining is from 0.05% to 30%.
Dependencies are inferred from the claim text.