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Effects of carbon fiber length on the tribological properties of paper-based friction materials
Affiliation:1. School of Material Science and Engineering, Shaanxi University of Science and Technology, Xi''an 710021, China;2. Shenzhen Key Laboratory of Special Functional Materials, Shenzhen University, Shenzhen 518060, China;1. Center of Advance Materials and Green Technology, Faculty of Engineering and Technology, Multimedia University, Jalan Ayer Keroh Lama, 75450 Melaka, Malaysia;2. Department of Mechanical Engineering, Faculty of Engineering, National Defence University of Malaysia, Sungai Besi Camp, 57000 Kuala Lumpur, Malaysia;1. College of Aerospace Engineering, Chongqing University, Chongqing 400044, China;2. Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China;3. Institute of Processing Engineering, Chinese Academy of Sciences, Beijing 100190, China;4. Key Disciplines Lab of Novel Micro-Nano Devices and System and International R &D Center of Micro-Nano Systems and New Materials Technology, Chongqing University, Chongqing 400044, China;1. Faculty of Mechanical Engineering, Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, 76100 Durian Tunggal, Melaka, Malaysia;2. Centre for Advanced Research on Energy, Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, 76100 Durian Tunggal, Melaka, Malaysia;3. Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia
Abstract:Four kinds of paper-based friction materials reinforced with carbon fibers of 100, 400, 600 and 800 μm were prepared by paper-making processes. Experimental results showed that the friction materials became porous with fiber length increasing. The friction torque curves were flat except the sample with 100 μm fibers. The wear rate of the sample with 100 μm fibers was only 1.40×10−5 mm3/J. Tiny debris and fine scratches formed in the worn surface were the reason for excellent wear resistance of friction pairs with 100 μm fibers. The friction pairs with 400, 600 and 800 μm fibers showed typically abrasive wear and fatigue wear.
Keywords:Paper-based friction materials  Carbon fiber length  Friction and wear  Oil lubricated conditions
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