Micro/macrotribological properties of several nano-scale ionic liquid films on modified silicon wafers

被引：16

作者：

Zhu, Min ^{[1
,2
]}

Mo, Yufei ^{[1
,2
]}

Zhao, Wenjie ^{[1
,2
]}

Bai, Mingwu ^{[1
]}

机构：

[1] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China

[2] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

来源：

SURFACE AND INTERFACE ANALYSIS | 2009年 / 41卷 / 03期

基金：

中国国家自然科学基金;

关键词：

ionic liquids; ultra-thin film; adhesion; tribology; SINGLE-CRYSTAL SILICON; TRIBOLOGICAL PROPERTIES; LUBRICANT ADDITIVES; STEEL; FRICTION; SURFACES; CONTACTS; WEAR;

D O I：

10.1002/sia.3007

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Three kinds of alkylimidazolium base room temperature ionic liquids (RTILs) were synthesized and their nano-scale lubricant films were prepared on modified silicon wafers by dip-coating method. The thicknesses of these films were measured and their relationship between thickness and solution concentration was obtained. Their surface morphologies were observed and contact angles of water on these films were determined. The adhesions and friction coefficients of these films were detected by contact mode AFM. As comparison, their macrotribological properties were evaluated on a UMT-2MT tribo-tester. It was found that, in microscale, 1-hexyl-3-methyl-imidazolium hexafluorophosphate performed the best tribological properties, while in macroscale, its tribological properties were similar with that of 1-hexyl-3-methyl-imidazolium tetrafluoroborate and better than that of 1-hexyl-3-methyl-imidazolium adipate. Copyright (C) 2009 John Wiley & Sons, Ltd.

引用

页码：205 / 210

页数：6

共 25 条

[1] Adhesion and stiction: Mechanisms, measurement techniques, and methods for reduction [J].