文献类型：期刊文献

英文题名：Tribological properties of ionic liquids for steel/aluminum, steel/copper and steel/Si3N4 ceramic contacts under boundary lubrication

作者：Zhang, Hao-bo[1];Chen, Hui[1];Shi, Xiao-ning[1];Liu, Xiong[1];Duan, Guo-jian[1]

第一作者：张浩波

通信作者：Zhang, HB[1]

机构：[1]Gansu Univ Chinese Med, Coll Pharm, Lanzhou, Gansu, Peoples R China

第一机构：甘肃中医药大学药学院（西北中藏药协同创新中心办公室）

通信机构：[1]corresponding author), Gansu Univ Chinese Med, Coll Pharm, Lanzhou, Gansu, Peoples R China.|[1073501e14fb35863569f]甘肃中医药大学药学院（西北中藏药协同创新中心办公室）;[10735]甘肃中医药大学;

年份：2018

卷号：70

期号：7

起止页码：1158

外文期刊名：INDUSTRIAL LUBRICATION AND TRIBOLOGY

收录：;EI(收录号：20183505745449);Scopus(收录号：2-s2.0-85052138697);WOS:【SCI-EXPANDED(收录号:WOS:000442369300003)】；

基金：The authors thank the financial support of this work by "Provincial Colleges and Universities and Fundamental Research Special of GanSu Province", "Gansu University of Chinese medicine introduction of talent project (BH2012-089)" and "Natural Science Foundation of GanSu Province (17JR5RA168)".

语种：英文

外文关键词：Tribochemistry; Boundary lubrication; Alkyl chain length; Ionic liquid

摘要：Purpose The purpose of this paper is to study the influence of alkyl chain length and kind of anions of ionic liquids on the tribological properties with different materials as friction pairs (steel-aluminum, steel-copper and steel-Si3N4 ceramic). Design/methodology/approach Tribological properties were evaluated by an optimol-SRV-IV reciprocation friction tester with a ball-on-block configuration at room temperature and high temperature, respectively. Friction-reducing and anti-wear properties of the ionic liquids for steel/aluminum, steel/copper and steel/ceramic contacts were evaluated on the ball-on-block reciprocating UMT-2MT tribometer. The morphologies of the worn surfaces were observed by a scanning electron microscope. The chemical states of several typical elements on the worn surfaces were examined by X-ray photoelectron spectroscopy. Findings Both the alkyl chain length and kind of anion influence the tribological properties of ionic liquids, especially for the length of alkyl chains. With the increase of alkyl chain length, the load carrying capacity of ionic liquids is improved at both room temperature and high temperature, and the friction reducing and antiwear behaviors are also significantly enhanced. Research limitations/implications The paper presents potentially useful and highly efficient lubricants. Practical implications Owing to their good friction-reducing and wear resistance properties, these ionic liquids are promising candidates for versatile applications. Originality/value This work might provide a promising research direction for design and application of ionic liquids as lubricants.