Preparation and tribological properties of surface modified Cu nanoparticles

被引：84

作者：

Yang Guang-bin ^{[1
]}

Chai Shan-tao ^{[1
]}

Xiong Xiu-juan ^{[1
]}

Zhang Sheng-mao ^{[1
]}

Yu Lai-gui ^{[1
]}

Zhang Ping-yu ^{[1
]}

机构：

[1] Henan Univ, Key Lab, Minist Educ Special Funct Mat, Kaifeng 475004, Peoples R China

来源：

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2012年 / 22卷 / 02期

基金：

中国国家自然科学基金;

关键词：

copper nanoparticles; surface modification; tribological properties; additive; preparation; ADDITIVES; ANTIWEAR; BEHAVIOR; DERIVATIVES;

D O I：

10.1016/S1003-6326(11)61185-0

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Cu nanoparticles surface-modified by dioctylamine dithiocarbamate (DTC8) were synthesized using a two-phase extraction route. The size, morphology and structure of resultant surface-capped Cu nanoparticles (coded as DTC8-Cu) were analyzed by means of X-ray diffraction, transmission electron microscopy and infrared spectrometry. The tribological behavior of DTC8-Cu as an additive in liquid paraffin was evaluated with a four-ball machine, and the surface topography of the wear scar was also examined by means of scanning electron microscopy. Results show that Cu nanoparticles modified by DTC8 have a small particle size and a narrow size distribution. Besides, DTC8-Cu as an additive in liquid paraffin has excellent antiwear ability, due to the deposition of nano-Cu with low melting point on worn steel surface leading to the formation of a self-repairing protective layer thereon.

引用

页码：366 / 372

页数：7

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