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RESEARCH PAPERS

Friction, Temperature, and Wear Analysis for Ceramic Coated Brake Disks

[+] Author and Article Information
M. Watremez, B. Marguet

GEC Alsthom Transport Division—C.I.M.T. Unit, Marly, France

J. P. Bricout

Mechanical Engineering Laboratory, URA C.N.R.S. 1775, University of Valenciennes, BP 311 F59304, Valenciennes, France

J. Oudin

Mechanical Engineering Laboratory, URA C.N.R.S. 1775, University of Valenciennes, Valenciennes, France

J. Tribol 118(3), 457-465 (Jul 01, 1996) (9 pages) doi:10.1115/1.2831558 History: Received April 25, 1994; Revised December 29, 1994; Online January 24, 2008

Abstract

Coating adherence, friction coefficient, surface temperature, and wear mass loss are determined for a set of scale reduced steel brake disks on which NiCr cement based coatings and low conductivity subcoatings are plasma sprayed. The related pads are made of either sintered iron copper or sintered aluminum titanate. It is mainly shown that NiCr-Cr3 C2 cermet coating on the disk, coupled with sintered aluminum titanate pad, leads to good damage resistance and stable friction coefficient in the simulation of high speed train braking. Low conductivity sublayers are also involved and it is found that temperatures in disc or pad may be also controlled.

Copyright © 1996 by The American Society of Mechanical Engineers
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