Development of partly polished polycrystalline diamond films on steel substrates for slider applications

Issue title: Selected Papers from the 14th International Symposium on Applied Electromagnetics and Mechanics (ISEM 2009), Part II

Article type: Research Article

Authors: Tsutsui, Atsushi^a | Miki, Hiroyuki^b | Takeno, Takanori^c | Takagi, Toshiyuki^{b; *}

Affiliations: [a] Graduate School of Engineering, Tohoku University, 6-6-1 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan | [b] Institute of Fluid Science, Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai 980-8577, Japan | [c] Institute for International Advanced Interdisciplinary Research, Tohoku University International Advanced Research and Education Organization, 6-3 Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan

Correspondence: [*] Corresponding author: Toshiyuki Takagi, Institute of Fluid Science, Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai 980-8577, Japan. Tel.: +81 22 217 5298; Fax: +81 22 217 5298; E-mail: takagi@ifs.tohoku.ac.jp

Abstract: CVD diamond films are expected to become maintenance-free solid lubricant coatings. However, substrates on which diamond film can be deposited have been limited to materials such as silicon and tungsten carbides. If diamond films can be deposited onto steel substrates, it will increase the number of possible applications. Diamond film was deposited on a steel substrate with an interlayer and was partly polished. Tungsten and titanium were selected as materials for the interlayer between diamond film and AISI 440C steel substrate. Low and stable friction coefficients were obtained between diamond film and AISI D2 pin, with friction coefficient 0.1 in the steady-state regime.

Keywords: Diamond film, Friction, Interlayer, Stainless steel

DOI: 10.3233/JAE-2010-1294

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 33, no. 3-4, pp. 1629-1634, 2010