| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a friction material which suppresses such a sounding phenomenon occurring from a cold state of friction surface as the morning effect. Ž<P>SOLUTION: The friction material includes a fibrous base material, a binding material, a friction adjusting material and the like, wherein the friction material contains at least one of metallic Ga and Ga alloys of 0.5-10 vol.% based on the whole friction material. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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