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Open AccessArticle

Microstructural Analysis and Wear Performance of Carbon-Fiber-Reinforced SiC Composite for Brake Pads

New Transportation Research Department, Korea Railroad Research Institute, Uiwang 16105, Korea
Department of Advanced Materials Engineering, Sun Moon University, Asan 31460, Korea
Author to whom correspondence should be addressed.
Materials 2017, 10(7), 701;
Received: 16 May 2017 / Revised: 14 June 2017 / Accepted: 21 June 2017 / Published: 26 June 2017
(This article belongs to the Special Issue Tribological Behavior of Materials by Surface Engineering)
Carbon-fiber-reinforced silicon carbide (C/C-SiC) composite is widely used as a friction material owing to its good performance, even though it is more expensive than metallic materials. The light C/C-SiC composite is an ideal candidate for weight reduction of frictional parts. In this study, the friction and wear behavior of C/C-SiC composite was assessed using a ball-on-disk friction tester under dry reciprocating sliding conditions at different temperatures of 25, 100, and 200 °C. The disk specimens were made of C/C-SiC composite, while the mating counterpart pins were made of bearing steel. The microstructure and wear track of the specimens were characterized using a scanning electron microscopy (SEM) and Raman spectroscopy. The microstructural analysis of the wear track revealed that the wear mechanism was abrasive. The friction coefficient and wear behavior of the specimens was dependent on the temperature, where the friction coefficients and wear rate increased with increasing temperature. View Full-Text
Keywords: C/C-SiC composite; microstructure; friction; wear; Raman spectroscopy C/C-SiC composite; microstructure; friction; wear; Raman spectroscopy
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Byeong-Choon, G.; In-Sik, C. Microstructural Analysis and Wear Performance of Carbon-Fiber-Reinforced SiC Composite for Brake Pads. Materials 2017, 10, 701.

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