Tribological and electrical contact behavior of Cu-DLC nanocomposite coating on copper-based substrate

Ryoichi Hombo; Takanori Takeno; Julien Fontaine; Hiroyuki Miki; Naoki Kato; Takahiro Nozu; Naruhiko Inayoshl; Michel Belin

Tribological and electrical contact behavior of Cu-DLC nanocomposite coating on copper-based substrate

Ryoichi Hombo, Takanori Takeno, Julien Fontaine, Hiroyuki Miki, Naoki Kato, Takahiro Nozu, Naruhiko Inayoshl, Michel Belin

Advanced Interdisciplinary Research Division

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The electrical contact resistance and the coefficient of friction behavior of a Cu-DLC nanocomposite coating deposited on a flat brass substrate with a brass ball combination were investigated. The electrical contact resistance decreased by two orders of magnitude over the initial value in around 600 reciprocating cycles and reached 1.5 to 2 milliohms. The coefficient of friction started below 0.35 and decreased progressively, and stabilized around 0.25 after 600 cycles. A tribofilm consisting of copper, Cu-DLC and zinc was built up on the ball by sliding with the Cu-DLC. This tribofilm provides the good tribo-electrical characteristics.

Original language	English
Title of host publication	5th World Tribology Congress, WTC 2013
Publisher	Politecnico di Torino (DIMEAS)
Pages	773-774
Number of pages	2
ISBN (Electronic)	9781634393522
Publication status	Published - 2013
Event	5th World Tribology Congress, WTC 2013 - Torino, Italy Duration: 2013 Sep 8 → 2013 Sep 13

Publication series

Name	5th World Tribology Congress, WTC 2013
Volume	1

Other

Other	5th World Tribology Congress, WTC 2013
Country/Territory	Italy
City	Torino
Period	13/9/8 → 13/9/13

ASJC Scopus subject areas

Process Chemistry and Technology
Mechanical Engineering

Cite this

Tribological and electrical contact behavior of Cu-DLC nanocomposite coating on copper-based substrate. / Hombo, Ryoichi; Takeno, Takanori; Fontaine, Julien et al.

5th World Tribology Congress, WTC 2013. Politecnico di Torino (DIMEAS), 2013. p. 773-774 (5th World Tribology Congress, WTC 2013; Vol. 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Hombo, R, Takeno, T, Fontaine, J, Miki, H, Kato, N, Nozu, T, Inayoshl, N & Belin, M 2013, Tribological and electrical contact behavior of Cu-DLC nanocomposite coating on copper-based substrate. in 5th World Tribology Congress, WTC 2013. 5th World Tribology Congress, WTC 2013, vol. 1, Politecnico di Torino (DIMEAS), pp. 773-774, 5th World Tribology Congress, WTC 2013, Torino, Italy, 13/9/8.

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AU - Hombo, Ryoichi

AU - Takeno, Takanori

AU - Fontaine, Julien

AU - Miki, Hiroyuki

AU - Kato, Naoki

AU - Nozu, Takahiro

AU - Inayoshl, Naruhiko

AU - Belin, Michel

PY - 2013

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N2 - The electrical contact resistance and the coefficient of friction behavior of a Cu-DLC nanocomposite coating deposited on a flat brass substrate with a brass ball combination were investigated. The electrical contact resistance decreased by two orders of magnitude over the initial value in around 600 reciprocating cycles and reached 1.5 to 2 milliohms. The coefficient of friction started below 0.35 and decreased progressively, and stabilized around 0.25 after 600 cycles. A tribofilm consisting of copper, Cu-DLC and zinc was built up on the ball by sliding with the Cu-DLC. This tribofilm provides the good tribo-electrical characteristics.

AB - The electrical contact resistance and the coefficient of friction behavior of a Cu-DLC nanocomposite coating deposited on a flat brass substrate with a brass ball combination were investigated. The electrical contact resistance decreased by two orders of magnitude over the initial value in around 600 reciprocating cycles and reached 1.5 to 2 milliohms. The coefficient of friction started below 0.35 and decreased progressively, and stabilized around 0.25 after 600 cycles. A tribofilm consisting of copper, Cu-DLC and zinc was built up on the ball by sliding with the Cu-DLC. This tribofilm provides the good tribo-electrical characteristics.

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Tribological and electrical contact behavior of Cu-DLC nanocomposite coating on copper-based substrate

Abstract

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