| abstract |
The present invention provides a friction material composition, a friction material and a friction material member have superior fade resistance and wear resistance at a high-temperature, even if copper having a high environmental burden is not contained or it is contained in an amount of 0.5 mass% or less. The friction material composition includes a binder, organic filler, inorganic filler and a fiber reinforcement, and does not contain copper as an element or contains copper in an amount of 0.5 mass % or less, and the inorganic filler is one or more selected from the group of γ alumina having an average particle size of 10 nm to 50 µm, dolomite having an average particle size of 1 to 20 µm, calcium carbonate having an average particle size of 1 to 20 µm, magnesium carbonate having an average particle size of 1 to 20 µm, manganese dioxide having an average particle size of 1 to 20 µm, zinc oxide having an average particle size of 10 nm to 1 µm, magnetite having an average particle size of 1.0 µm or less, cerium oxide having an average particle size of 0.5 to 5 µm, and zirconia having an average particle size of 5 to 50 nm. |