Automotive brakes must provide high and stable friction, noise-and vibration-free performance and low wear for reasons of safety, comfort and durability. A single material has never been successful to meet the numerous performance related requirements of a break material. Only a composite material with a complex composition (10 to 30 ingredients) can satisfy the diverse and conflicting requirements. Although a great deal of research has been going on to develop friction materials, the details on composition and processing are shrouded in secrecy due to proprietary reasons. This paper presents a brief review of the materials technology involved in automotive friction materials. The following aspects have been considered: (i) Friction & wear, (ii) Ingredients of friction materials (classification, functions and description;, (Hi; Different types of friction composites (organics, semimetallics, ceramic enhanced, sintered and carbon fiber reinforced materials), and (iv) Dram or disc materials. An attempt has been made to simplify the complexities and to develop an understanding of the materials aspects of friction materials while emphasizing current trends.
Composite materials for automotive brakes
Verbundmaterialien für Fahrzeugbremsen
2007
17 Seiten, 1 Bild, 13 Tabellen, 22 Quellen
Conference paper
English
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