Patent ID: 7553350
Filing Date: 2009-06-30
Classification: B22F,C22C

Abstract:
1. A high-strength and highly-wear-resistant sintered diamond object comprising sintered diamond particle having an average particle size of at most 2 μm and a binder phase as a remaining portion, wherein content of said sintered diamond particle in said sintered diamond object is at least 80 volume % and at most 98 volume %, said binder phase contains at least titanium, of which content is at least 0.5 mass % and less than 20 mass %, and contains cobalt, of which content is at least 50 mass % and less than 99.5 mass %, a part of said Ti or said Ti as a whole is present as carbide particle having an average particle size of at most 0.8 μm, a texture of said carbide particle is discontinuous, and adjacent said diamond particles are bound to each other.