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Wear behavior of graphene/alumina composite

Gutierrez-Gonzalez, C. F., Smirnov, A., Centeno, A., Fernandez, A., Alonso, B., Garcia Rocha, Victoria, Torrecillas, R., Zurutuza, A. and Bartolome, J. F. 2015. Wear behavior of graphene/alumina composite. Ceramics International 41 (6) 10.1016/j.ceramint.2015.02.061

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In the present work, the dry sliding behavior of a graphene/alumina composite material was studied against alumina in air. The tests were carried out in a reciprocating wear tester with an applied load of 20 N, a sliding speed of 0.06 m s−1 and a sliding distance of up to 10 km. Under the testing conditions, the graphene/ceramic composite showed approximately half the wear rate and a 10% lower friction coefficient than the monolithic alumina. It has been found that this behavior is related to the presence of graphene platelets adhered to the surface of friction that form a self-lubricating layer which provides enough lubrication in order to reduce both wear rate and friction coefficient, as compared to the alumina/alumina tribological system.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Publisher: Elsevier
ISSN: 0272-8842
Date of Acceptance: 11 February 2015
Last Modified: 26 May 2020 09:30

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