期刊
TRIBOLOGY INTERNATIONAL
卷 33, 期 12, 页码 817-827出版社
ELSEVIER SCI LTD
DOI: 10.1016/S0301-679X(00)00127-4
关键词
automotive brakes; friction; wear; tribological contact; contact mechanics; brake pad materials
Despite the enormous amount of testing and development of automotive brakes and brake pad materials, rather little is known about their tribological contact situation on a microscopic level. The sliding of an organic brake pad against a grey cast iron rotor is very different from most tribological systems. When worn against the rotor, the complex structure and very inhomogeneous composition of the pads results in a particular surface structure, with large contact plateaus rising a few micrometers above the rest of the surface [Wear 232 (1999) 163; Wear 2000 (submitted for publication); Proceedings of the Nordtrib 2000, vol. 2 (2000), 358]. The present investigation involves a more comprehensive study of the formation, mechanical properties and composition of the tribological surfaces of such pads, using high resolution scanning electron microscopy, nanoindentation, energy dispersive X-ray analysis and three-dimensional profilometry using white light optical interferometry. The observations are discussed and correlated to observed friction phenomena. (C) 2000 Elsevier Science Ltd. All rights reserved.
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