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Open Access Tribological Property of Attapulgite Powder as Lubricant Additive

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The antifriction and antiwear performance of attapulgite powder as an antifriction and repairing material for steel–steel frictional pair was investigated by a friction and wear tester. The morphology and elemental composition of worn surfaces were analyzed by scanning electron microscopy and energy dispersive spectrometry, respectively. The width and volume of grinding crack were measured by the three dimensional profile measuring apparatus. The antifriction and repairing mechanism of attapulgite powder as a lubrcant in oils was discussed. The result shows that attapulgite can reduce the friction coefficient of the steel–steel pair when the addition of attapulgite is > 0.5% (in mass). Attapulgite exhibited the optimal antifriction and antiwear properties at the addition of 1.0% (in mass). A smooth repairing layer could be formed on worn steel surface due to tribochemical reactions, consequently improving the tribological property of the steel–steel frictional pair.
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Keywords: additive; attapulgite; tribological property

Document Type: Research Article

Affiliations: 1: School of Materials Science and Engineering, Shanghai Jiaotong University, Shanghai 200240, China 2: National Key Laboratory for Remanufacturing, Academy of Armored Forces Engineering, Beijing 100072, China

Publication date: 2013-06-01

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  • Journal of the Chinese Ceramic Society (JCCS), published in Chinese and in English, is a comprehensive monthly periodical focused on the fields of inorganic and non-metallic materials. The main purpose of the JCCS is to report the latest creative achievements in research, production and design for ceramics, glass, cementing materials, refractory, artificial crystals and other non-metallic materials. JCCS is regarded as an important journal in inorganic and non-metallic materials sciences in China and has been awarded by China Association for Science and Technology. The full-text of papers in JCCS is also published by CNKI (China National Knowledge Infrastructure). JCCS is indexed in EI Compendex, CA( Chemical Abstracts) ,SA and Ж and more than 20 databases.
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