Effect of compacted wear debris on the tribological behavior of carbon/epoxy composites

• Published in: Composite structures Vol. 74; no. 2; pp. 136 - 144
• Main Authors: Lee, Hak Gu, Kim, Seong Su, Lee, Dai Gil
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 01.07.2006; Elsevier Science
• Subjects: Applied sciences; Bearings, bushings, rolling bearings; Compaction; Composite; Composites; Drives; Exact sciences and technology; Forms of application and semi-finished materials; Friction; Fundamental areas of phenomenology (including applications); Mechanical engineering. Machine design; Physics; Polymer industry, paints, wood; Solid mechanics; Structural and continuum mechanics; Technology of polymers; Wear; Wear debris; Wear debris; Compaction; Composite; Friction; Wear; Volume fraction; Wear particle; Fiber reinforced material; Epoxy resin; Experimental study; Friction material; Composite material; Contact surface; Dry friction; Friction coefficient; Plain bearing; Groove; Self lubricating material; Sliding friction; Carbon fiber; Tribology
• ISSN: 0263-8223; 1879-1085
• DOI: 10.1016/j.compstruct.2005.03.014

Carbon fiber polymeric composites have been widely used in the bearing materials without liquid lubricant due to their self-lubricating characteristics. During sliding motion of composite bearings, the wear debris produced on the composite contact surface affects the tribological behavior of composite bearings. In this work, in order to investigate the effect of wear debris on the tribological behavior of flat composite surfaces, dry sliding tests were performed on the composite surfaces with many micro-grooves. The friction coefficients of composite surfaces were measured with respect to fiber volume fraction and micro-grooves. Then, the worn out surfaces were observed, from which the friction and wear mechanisms considering the compacted wear debris were proposed.