A Review on Non-Asbestos Friction Materials: Material Composition and Manufacturing

Abstract

The peculiar feature of friction materials to absorb the kinetic energy of rotating wheels of an automobile to control the speed makes them remarkable in automobile field. The regulation of speed cannot be achieved with the use of single phase material as a friction material. Consequently, the friction material should be comprised of composite materials which consist of several ingredients. Incidentally, the friction materials were formulated with friction modifier, binders, fillers and reinforcements. Due to its pleasant physical properties, asbestos was being used as a filler. Past few decades, it is found that asbestos causes dangerous cancer to its inhaler, which provides a scope its replacement. Several attempts have been made to find an alternative to the hazardous asbestos. The efforts made by different researchers for the impact of every composition of composite friction material in the field are reviewed and studied for their effect on the properties of friction material. Surface morphological studies of different friction material are compared to interpret the concept of surface wear and its correlation with material properties.

Analysis of the Electrical and Mechanical Properties of Cement Composite Produced with Brake Lining Waste

“…Besides these materials, solid lubricants are added, which are usually rubber and/or graphite [9,10], which in this second case can be a good conductor of electricity.…”

Development and characterization of low metallic friction composites filled with brass chips

“…Friction composite materials usually consist of a matrix and a large number of different components concentrated around it. Namely, filler, binder, friction modifiers and reinforcing elements are the main components of brake composites [7]. Phenolic resin or phenol-formaldehyde is a very commonly used material as a binder due to its favourable processing properties [8].…”