Load, Speed and Temperature Sensitivities of a Carbon-Fiber-Reinforced Phenolic Friction Material

Abstract

A model friction material was formulated with a cashew-modified phenolic resin, short carbon fiber, phenolic particles, barytes and steel fiber. The friction, wear and fade characteristics of this material were determined using a Chase friction material testing machine. The coefficient of friction was found to vary between 0.2 and 0.5 with lower values associated with higher loads, speeds and drum temperatures and vice versa. Conditioning the specimens with several fade-recovery test cycles resulted in steady friction during subsequent fade tests followed by excellent recovery characteristics. The specific wear rate per unit load and sliding distance decreased with increasing loads, but increased with increasing drum speeds and temperatures due to thermal degradation of the resin. The carbon-fiber-reinforced friction material showed lower specific wear rates than that of a milled-glass-fiber-based friction material at low speeds and temperatures over a wide load range. © 1995.

Department(s)

Mechanical and Aerospace Engineering

Second Department

Chemistry

International Standard Serial Number (ISSN)

0043-1648

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1995 Elsevier, All rights reserved.

Publication Date

01 Jan 1995

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