Tribochemistry of Ti3SiC2/Si3N4 tribopair in ethanol

被引：9

作者：

Ren, Shufang ^{[1
]}

Lu, Jinjun ^{[2
]}

Jia, Qianzeng ^{[3
]}

Meng, Junhu ^{[1
]}

Wang, Jingbo ^{[1
]}

Zhou, Jiansong ^{[1
]}

机构：

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

[2] Northwest Univ, Coll Chem & Mat Sci, Xian 710072, Peoples R China

[3] Lanzhou DaCheng Technol Co Ltd, Lanzhou 730000, Peoples R China

来源：

TRIBOLOGY INTERNATIONAL | 2014年 / 74卷

关键词：

Tribochemistry; Sliding wear; Sliding friction; Surface analysis; SELECT MAX PHASES; SILICON-NITRIDE; TRIBOLOGICAL BEHAVIOR; MECHANOCHEMICAL REACTION; CRYSTAL-CHEMISTRY; BULK TI3SIC2; FRICTION; WATER; WEAR; COMPOSITES;

D O I：

10.1016/j.triboint.2014.03.002

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Tribological chemistry of Ti3SiC2/Si3N4 tribopair in two low-viscosity fluids (water and ethanol) was investigated. The chemical compositions of worn surfaces and friction media were determined by X-ray photoelectron spectroscope and Fourier transform infrared spectroscopy. Results show that the friction and wear of Ti3SiC2/Si3N4 tribopair in water was moderate while that in ethanol was low. Mechanical wear characterized by pullout of Ti3SiC2 grains was responsible for high coefficient of friction and wear rate. In ethanol, tribochemical products, i.e., colloid silicic acid from Ti3SiC2 and silicon alkoxide and amines from Si3N4 dissolved in the friction liquid and were responsible for low coefficient of friction and wear rates. (c) 2014 Elsevier Ltd. All rights reserved.

引用

页码：174 / 180

页数：7

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