Patent ID: 8916488

Claim:
A sliding member comprising: a primary phase; and a subphase, wherein the primary phase comprises silicon carbide as a main component, and the subphase has a different composition from the primary phase and comprises boron, silicon and carbon; wherein a ratio of spherical pores having a roundness of 6 μm or less and a pore diameter of 10 to 60 μm with respect to all pores having a pore diameter of 10 μm or more in the sliding surface is 75% to 90%; wherein a dispersion density of the spherical pores is 60 pieces/mm 2 or more; and wherein a maximum diameter of each pore in the sliding surface is 100 μm or less, wherein the subphase in the silicon carbide sintered body is a granular crystal phase dotted among a plurality of the primary phases, and wherein the aspect ratio of the subphase is 2.5 or less.