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http://dx.doi.org/10.5370/KIEE.2012.61.10.1561

Physical and Electrical Properties of Nanocrystalline Carbon Films Prepared with Ti Concentration for Contact Strip Application of Electric Railway  

Park, Yong-Seob (조선이공대학교 광전자정보과)
Jung, Ho-Sung (한국철도기술연구원)
Park, Chul-Min (한국철도기술연구원)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.61, no.10, 2012 , pp. 1561-1564 More about this Journal
Abstract
In this work, we have fabricated the nanocrystalline carbon films by using unbalanced magnetron sputtering method with graphite and Ti targets for contact strip application of electrical railway. The power density of graphite target was fixed and the power density was increased for the increase of Ti concentration in TiC films. We investigated the hardness, surface roughness, contact angle, resistivity, HRTEM and XPS of TiC films with Ti concentration. The hardness and resistivity were improved with increasing Ti concentration. These results indicate that the improvement of hardness and resistivity is related to the increase of sp2 clusters in TiC films.
Keywords
Contact strip of railway; Magnetron sputtering; Hardness; Contact angle; Surface roughness; Resistivity;
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