METHOD FOR MAKING A CERAMIC MATRIX MATERIAL FOR FRICTION COMPONENTS OF BRAKES AND CERAMIC MATRIX MATERIAL MADE BY SUCH METHOD

摘要

Method for making a ceramic matrix material for brake friction components, in particular disc brakes, consisting of the following operational phases: a) prepare a mixture of at least one siliconic type ceramic precursor, particles of hard materials suitable as abrasives, particles of substances suitable as lubricants and particles of metal materials; b) hot-press the mixture to obtain a green body; c) submit the green body to a process of pyrolysis in order to achieve ceramisation of the preceramic binder, thus obtaining a ceramic matrix material. The invention is distinguished by the fact that the mixture includes a catalyst suitable for favouring reticulation of the ceramic precursor during the hot-pressing phase and by the fact that the pyrolysis process is carried out at temperatures below 800°C, more precisely between 400°C and 600°C.