TY - JOUR
T1 - Ultra-low friction of polyethylenimine / molybdenum disulfide (PEI/MoS2)15 thin films in dry nitrogen atmosphere and the effect of heat treatment
AU - Saravanan, Prabakaran
AU - Selyanchyn, Roman
AU - Watanabe, Motonori
AU - Fujikawa, Shigenori
AU - Tanaka, Hiroyoshi
AU - Lyth, Stephen Matthew
AU - Sugimura, Joichi
N1 - Funding Information: This work was supported by the World Premier International Research Center Initiative (WPI), MEXT, Japan, and the JST-CREST Grant Number: JPMJCR13C1, JAPAN. Shugo Onitsuka, Kazumi Okada, Takehiro Morita and Yoshie Kurono are gratefully acknowledged for the technical and administrative assistance.
Funding Information: This work was supported by the World Premier International Research Center Initiative (WPI) , MEXT , Japan, and the JST-CREST Grant Number: JPMJCR13C1 , JAPAN. Shugo Onitsuka, Kazumi Okada, Takehiro Morita and Yoshie Kurono are gratefully acknowledged for the technical and administrative assistance.
Publisher Copyright: © 2018 Elsevier Ltd
Prabakaran Saravanan, Roman Selyanchyn, Motonori Watanabe, Shigenori Fujikawa, Hiroyoshi Tanaka, Stephen Matthew Lyth, Joichi Sugimura, Ultra-low friction of polyethylenimine / molybdenum disulfide (PEI/MoS2)15 thin films in dry nitrogen atmosphere and the effect of heat treatment, Tribology International, Volume 127, 2018,Pages 255-263, https://doi.org/10.1016/j.triboint.2018.06.003
PY - 2018/11/1
Y1 - 2018/11/1
N2 - The unique frictional behavior of polyethylenimine/molybdenum disulphide (PEI/MoS2)n thin films on steel substrates, deposited via the layer-by-layer (LbL) technique, is explored. The effects of gaseous atmosphere (i.e. air vs. dry nitrogen), and heat treatment of the coatings are investigated. The coefficients of friction (COFs) are reduced by factors of ca. 2 and 11 in air and N2 respectively, compared to an uncoated steel substrate. Ultra-low friction (COF < 0.02) is achieved in dry N2. After heat treatment of the coating at 500 °C, the COF in air and nitrogen does not change significantly, but the coating demonstrates much higher durability. Detailed characterization of the coating and wear debris are performed to understand the origin of these tribological properties.
AB - The unique frictional behavior of polyethylenimine/molybdenum disulphide (PEI/MoS2)n thin films on steel substrates, deposited via the layer-by-layer (LbL) technique, is explored. The effects of gaseous atmosphere (i.e. air vs. dry nitrogen), and heat treatment of the coatings are investigated. The coefficients of friction (COFs) are reduced by factors of ca. 2 and 11 in air and N2 respectively, compared to an uncoated steel substrate. Ultra-low friction (COF < 0.02) is achieved in dry N2. After heat treatment of the coating at 500 °C, the COF in air and nitrogen does not change significantly, but the coating demonstrates much higher durability. Detailed characterization of the coating and wear debris are performed to understand the origin of these tribological properties.
KW - mmorphous carbon
KW - heat treatment
KW - molybdenum disulfide (MoS)
KW - nitrogen
KW - ultra-low friction
UR - http://www.scopus.com/inward/record.url?scp=85048809687&partnerID=8YFLogxK
U2 - 10.1016/j.triboint.2018.06.003
DO - 10.1016/j.triboint.2018.06.003
M3 - Article
AN - SCOPUS:85048809687
SN - 0301-679X
VL - 127
SP - 255
EP - 263
JO - Tribology International
JF - Tribology International
ER -