DESIGN AND PERFORMANCE OF A PROPOSED ASBESTOS-FREE FRICTIONAL COMPOSITE MATERIAL FOR AUTOMOTIVE BRAKE

摘要

In this paper, a proposed asbestos-free friction composite material is provided to be used as a braking material in automotive applications. This frictional material is composed of eight ingredients namely; resin (sometimes called matrix), aramid (and rockwool) fibers, barite, mineral clay, walnut shell, in addition to some other frictional and abrasive additives. The performance of the proposed material is investigated tribologically using a FAST machine. Friction stability and specific wear rate were examined to study the effect of the ingredients' ratios on its tribological properties. The results obtained from this experimental work are compared with that of two commercial samples. The results illustrated that the proposed frictional material can be used efficiently as a lining material for automotive disc brake (passenger cars, trucks and heavy-duty vehicles).