Wear behavior of graphene/alumina composite

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 20N, a sliding speed of 0.06ms−1 and a sliding distance of up to 10km. Under the testing condit...

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Bibliographic Details
Published inCeramics international Vol. 41; no. 6; pp. 7434 - 7438
Main Authors Gutierrez-Gonzalez, C.F., Smirnov, A., Centeno, A., Fernández, A., Alonso, B., Rocha, V.G., Torrecillas, R., Zurutuza, A., Bartolome, J.F.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.07.2015
Subjects
A. Sintering
Aluminum oxide
B. Nanocomposites
C. Wear resistance
Ceramics
D. Al2O3
Friction
Graphene
Sliding
Tribology
Wear
Wear rate
D. Al2O3
C. Wear resistance
Graphene
A. Sintering
B. Nanocomposites
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Summary: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 20N, a sliding speed of 0.06ms−1 and a sliding distance of up to 10km. 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.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0272-8842
1873-3956
DOI:10.1016/j.ceramint.2015.02.061