| 摘要 |
<p>A friction engaging device, such as, for example a braking disc and a friction couple, brake disc/pad are disclosed. The friction engaging device is a carbon - ceramic composite comprising a carbon fibre network and a filler comprising silicon carbide. One device comprises, by weight, from 35-50 % carbon fibre, 14-30 % free carbon, 10-28 % silicon carbide, 5-14 % silicon and 5-14 % silicon oxide. Also disclosed is a method of producing a friction engaging device in which a carbon - carbon composite comprising 10 to 60 % by weight of a carbon fibre network and from 40 to 90 % by weight free carbon is impregnated with silicon under conditions such that substantially all of the carbon fibre network remains as carbon fibre, and a proportion of the free carbon present in the volume is converted within the volume to silicon carbide by reaction with the silicon.</p> |
