Effects of carbon nanotubes on electrical contact resistance of a conductive Velcro system under low frequency vibration.pdfVIP

Effects of carbon nanotubes on electrical contact resistance of a conductive Velcro system under low frequency vibration.pdf

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Tribology International 104 (2016) 45–56 Contents lists available at ScienceDirect Tribology International journal homepage: /locate/triboint Effects of carbon nanotubes on electrical contact resistance of a conductive Velcro system under low frequency vibration Ilkwang Jang, Hyung Goun Joo, Yong Hoon Jang n School of Mechanical Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Republic of Korea article info Article history: Received 7 May 2016 Received in revised form 16 August 2016 Accepted 19 August 2016 Available online 23 August 2016 Keywords: Conductive Velcro Carbon nanotubes Electrical contact resistance Low frequency vibration Lubrication abstract Experimental measurements of electrical contact resistance are presented for a conductive Velcro connector with spayed-on carbon nanotubes under low frequency vibration. Several factors affecting the electrical contact resistance of the Velcro connector, such as the type of carbon nanotube used, the density of the carbon nanotubes, the electrical load, the frequency, and the load amplitude of vibrating load, are analyzed. The role of carbon nanotubes in reducing electrical contact resistance is discussed from the view point of lubrication and damping. 2016 Elsevier Ltd. All rights reserved. 1. Introduction Carbon nanotubes (CNTs) have been acknowledged to enhance traditional material performance because of their superior performance in strength, elastic modulus, and wear-resistance. Their physical characteristics such as chemical stability and electrical and thermal conductivity are also highly valued [1,2]. It has been reported that CNTs can be used to form metal/ polymer composites, leading to the enhancement of mechanical characteristics such as tensile strength and elastic modulus. Speci?cally, a new structural composite material utilizes CNTs as reinforcement for a polymer creating a light-weight, high strength and super-elastic structural member. The member has been utilized for its

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