Patent ID: 8147912
Filing Date: 2012-04-03
Classification: C04B,F16D

Abstract:
1. A method for making a composite structure or a portion of a composite structure of a braking band of a brake disc comprising at least the following steps: making a composite ceramic structure, comprising silicon, silicon carbides and carbon not bonded to silicon, obtaining a body of a braking band comprising at least one braking surface, said carbon not bonded to silicon being present substantially in the form of carbon fibre filaments; processing said braking surface removing a surface layer so as to have said carbon not bonded with silicon on the surface; removing at least partly and mainly selectively the carbon not bonded with silicon from the surface, leaving silicon and silicon carbides; and depositing a protective coating on said surface from which at least partly and mainly selectively the carbon not bonded with the silicon has been removed.