Tribological Investigation of Multilayer Graphene Reinforced Alumina Ceramic NanocompositesSource: Journal of Tribology:;2019:;volume( 141 ):;issue: 002::page 22002DOI: 10.1115/1.4041303Publisher: The American Society of Mechanical Engineers (ASME)
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.
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| contributor author | Ahmad, Iftikhar | |
| contributor author | Anwar, Saqib | |
| contributor author | Xu, Fang | |
| contributor author | Zhu, Yanqiu | |
| date accessioned | 2019-03-17T10:29:33Z | |
| date available | 2019-03-17T10:29:33Z | |
| date copyright | 10/16/2018 12:00:00 AM | |
| date issued | 2019 | |
| identifier issn | 0742-4787 | |
| identifier other | trib_141_02_022002.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl1/handle/yetl/4256157 | |
| description 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. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Tribological Investigation of Multilayer Graphene Reinforced Alumina Ceramic Nanocomposites | |
| type | Journal Paper | |
| journal volume | 141 | |
| journal issue | 2 | |
| journal title | Journal of Tribology | |
| identifier doi | 10.1115/1.4041303 | |
| journal fristpage | 22002 | |
| journal lastpage | 022002-11 | |
| tree | Journal of Tribology:;2019:;volume( 141 ):;issue: 002 | |
| contenttype | Fulltext |