Wear Studies on Aircraft Brake Materials

[+] Author and Article Information
Ting Long Ho

Department of Mechanical Engineering, Aeronautical Engineering and Mechanics, Rensselaer Polytechnic Institute, Troy, N. Y.

J. of Lubrication Tech 100(1), 98-103 (Jan 01, 1978) (6 pages) doi:10.1115/1.3453124 History: Online October 20, 2010


An investigation of both worn surfaces of friction pads and steel rotors which are being applied in current aircraft brakes has been carried out by employing an x-ray diffraction technique. It consists of the analysis of chemical element distribution in the surface layers. The wear particles were also examined by using the scanning electron microscope. The initiation and growth of surface cracks and the oxidation were emphasized in this investigation. A wear model was proposed for the current aircraft brake materials. Essentially this model proposed that cracks are formed in the surface layer of the break material due to the normal and fractional stresses. It is primarily surface temperature dependent.

Copyright © 1978 by ASME
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