Patent ID: 7666246

Claim:
A particle dispersion copper alloy comprising particles dispersed in a matrix composed of a copper alloy, said particle dispersion copper alloy containing 6 to 15% by weight of Co, 3 to 8% by weight of at least any one of Cr and Mo, 0.3 to 1% by weight of W, 0.5 to 1.8% by weight of Fe, 8 to 15% by weight of Ni, 0.08 to 0.2% by weight of C, 1.5 to 4% by weight of Si, 0.5 to 0.8% by weight of Al, 0.1 to 0.3% by weight of P, and inevitable impurities and Cu as balance, wherein said particles have an average particle diameter of 8 to 20 μm and a particle size distribution width of 0.1 to 100 μm, and an area ratio occupied by said particles in an arbitrary cross section is 10 to 20%.