Tribological Investigation of Multilayer Graphene Reinforced Alumina Ceramic Nanocomposites-Reference-Cited by-同舟云学术

Tribological Investigation of Multilayer Graphene Reinforced Alumina Ceramic Nanocomposites

Published:2018-10-16 Issue:2 Volume:141 Page:
ISSN:0742-4787
Container-title:Journal of Tribology
language:en
Short-container-title:

Author:

Ahmad Iftikhar¹,Anwar Saqib²,Xu Fang³,Zhu Yanqiu⁴

Affiliation:

1. Center of Excellence for Research in Engineering Materials, Deanship of Scientific Research, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia e-mail:

2. Industrial Engineering Department, College of Engineering, King Saud University, Riyadh 11421, Saudi Arabia

3. Department of Mechanical, Materials and Manufacturing Engineering, The University of Nottingham, Nottingham NG7 2RD, UK

4. College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter EX4 4QF, UK

Abstract

We investigated the wear resistance properties of high-frequency induction heat (HFIH) sintered alumina (Al2O3) ceramic nanocomposites containing various multilayer graphene (MLG) concentrations. The tribology of the monolithic Al2O3 and nanocomposites samples was assessed against spherical ceramic (Si3N4) counter sliding partner at sliding loads ranging from 6 to 40 N using ball-on-disk wear test configuration. Compared with the monolithic Al2O3, the incorporation of 1.0 vol % MLG reduced the friction coefficient by 25% and the wear rate by 65% in the MLG/Al2O3 nanocomposites tested under 40 N sliding load. Based on the mechanical properties, brittle index, and microstructure, the active wear mechanisms for the nanocomposites were analyzed. The MLG contributed in the nanocomposites tribology process, indirectly, by enhancing the mechanical properties and, directly, by reducing the friction between the counter sliding partners. The synergistic role of MLG thin triboflim and twirled MLG for improving the tribological performance of the nanocomposites is discussed.

Funder

King Saud University

Publisher

ASME International

Subject

Surfaces, Coatings and Films,Surfaces and Interfaces,Mechanical Engineering,Mechanics of Materials

Link

http://asmedigitalcollection.asme.org/tribology/article-pdf/doi/10.1115/1.4041303/6293258/trib_141_02_022002.pdf

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