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Chemical Changes at Brake Wear Surfaces
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Sector:
Event:
Mid-Year Meeting
Language:
English
Abstract
During a fundamental investigation aimed at the further improvement of organic disc brake linings, chemical studies were made of brake wear surfaces. Electron microprobe and infrared analysis were used to study the layer which forms on the lining and the film which forms on the drum when a new lining is broken in. Both the lining surface layer and the drum film are discontinuous and contain thermally decomposed asbestos. Calcined asbestos as an added ingredient in experimental linings resulted in markedly improved frictional performance.
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Authors
Citation
Gatrell, R. and Schreiber, T., "Chemical Changes at Brake Wear Surfaces," SAE Technical Paper 670511, 1967, https://doi.org/10.4271/670511.Also In
References
- Antheil R. E. “The Story of the Beta Group -- An Unusual Organization Working on Brake Lining Problems.” Paper 670509 SAE Mid-Year Meeting Chicago May 1967
- Othmer Kirk “Encyclopedia of Chemical Technology.” 2 Second 1963 738
- Burkman A. J. Highley F. H. “Laboratory Evaluation of Brake Lining Materials.” Paper 670510 SAE Mid-Year Meeting Chicago May 1967
- Bowen N. L. Tuttle O. F. “The System MgO-SiO 2 H 2 O.” Bull. Geol. Soc. Amer. 60 1949 439