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Tribology Transactions Volume 58, 2015 - Issue 6
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Original Articles

Effect of Cu Nanoparticles on the Tribological Performance of Attapulgite Base Grease

Feng NanShanghai Key Laboratory of Laser Processing and Materials Modification, Shanghai Jiaotong University, Shanghai200240, China;National Key Laboratory for Remanufacturing, Beijing100072, China
,
Yi XuNational Key Laboratory for Remanufacturing, Beijing100072, China
,
Binshi XuNational Key Laboratory for Remanufacturing, Beijing100072, China
,
Fei GaoState Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing100190, China
,
Yixiong WuShanghai Key Laboratory of Laser Processing and Materials Modification, Shanghai Jiaotong University, Shanghai200240, China
&
Zhuguo LiShanghai Key Laboratory of Laser Processing and Materials Modification, Shanghai Jiaotong University, Shanghai200240, China
Pages 1031-1038 | Received 06 Jan 2015, Accepted 25 Mar 2015, Published online: 01 Sep 2015
 
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Abstract

This study investigated the effect of Cu nanoparticles on the tribological properties of attapulgite base grease. It was found that the friction reduction ability and antiwear property of the base grease can be improved with the addition of Cu nanoparticles. Under the lubrication of grease containing Cu nanoparticles, a smoother and more compact tribofilm was formed on the rubbing surface. The tribofilm is mainly composed of Cu, FeO, Fe2O3, FeOOH, CuO, and SiO. In addition, the content of iron oxides and silicate oxide formed in the tribofilm was increased by the introduction of Cu nanoparticles.

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