A multi-layer friction element is disclosed consisting of carbon-carbon composite material comprising a structure layer of so-called "coarse" texture comprising segments of rovings and at least one friction layer of so-called "fine" texture comprising fibre segments. A method also is disclosed for producing...http://www.google.com.au/patents/US5242746?utm_source=gb-gplus-sharePatent US5242746 - Friction elements of composite carbon-carbon material and of differential texture
