Fine grained polycrystalline abrasive material

Details Fine grained polycrystalline abrasive material Fine grained polycrystalline abrasive material

C - Chemistry, Metallurgy

22

C

C22C 26/00 (2006.01) B22F 7/02 (2006.01) C22C 29/16 (2006.01)

Patent

CA 2618687

Polycrystalline diamond abrasive elements having a fine grained microstructure are produced from fine grained diamond particles and a catalyst solvent material, at least a portion of which is in the form of nanosized particles. The abrasive elements exhibit high homogeneity and exhibit significant increases in toughness and improved wear resistance.

La présente invention concerne des éléments abrasifs en diamant polycristallin possédant une microstructure de grains fins produits à partir de particules de diamants en grains fins et un matériau solvant catalyseur, dont au moins une partie se présente sous la forme de particules de taille nanométrique. Ces éléments abrasifs présentent une homogénéité élevée et présente un accroissement significatif de la dureté ainsi qu'une résistance à l'usure améliorée.

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