Tribological behavior and tribofilm composition in lubricated systems containing surface-capped molybdenum sulfide nanoparticles

被引：37

作者：

Bakunin, V. N.

Kuzmina, G. N.

Kasrai, M.

Parenago, O. P.

Bancroft, G. M.

机构：

[1] AV Topchiev Inst Petrochem Synth RAS, Moscow 119991, Russia

[2] Univ Western Ontario, Dept Chem, London, ON N6A 5B7, Canada

来源：

TRIBOLOGY LETTERS | 2006年 / 22卷 / 03期

基金：

美国国家科学基金会; 加拿大自然科学与工程研究理事会;

关键词：

friction modifiers; nanoparticles; nano-MoS3; ZDDP; XANES; wear;

D O I：

10.1007/s11249-006-9095-7

中图分类号：

TQ [化学工业];

学科分类号：

0817 [化学工程与技术];

摘要：

The tribological behavior of surface-capped MoS3 nanoparticles (nano-MoS3) in hydrocarbon oils was studied both alone and in combination with ZDDP. It was found that the nano-MoS3 additive alone demonstrates pro-wear properties and decreases the friction coefficient only at high temperatures. The combination with ZDDP demonstrates synergism in antiwear and antifriction activity even at low ZDDP content. X-ray Absorption Near Edge Structure (XANES) spectroscopy at the sulfur, molybdenum and phosphorus edges was used to identify the chemical species in tribochemical films. It was established that the nano-MoS3-formed tribofilms are composed of oxidized sulfur and molybdenum species while tribofilms formed by combination with ZDDP are composed of phosphate layers incorporating MoS2-type fragments providing friction reduction.

引用

页码：289 / 296

页数：8

共 23 条

[1]

Bakunin V.N., 2005, Lubr. Sci, V17, P127, DOI [10.1002/ls.3010170202, DOI 10.1002/LS.3010170202]

[2]

Synthesis and application of inorganic nanoparticles as lubricant components - a review [J].