Influence of countersurface materials on dry sliding performance of CuO/Y-TZP composite at 600 °C |
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| Authors: | Mahdiar Valefi Belavendram Pathiraj Matthijn de Rooij Erik de Vries Dirk J. Schipper |
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| Affiliation: | 1. Moscow Aviation Institute (National Research University), Moscow 109383, Russia;2. Russian Medical Academia of Postgraduate Education, Moscow 123995, Russia;3. JSC «Russian Space Systems», Moscow 111250, Russia;4. Key Laboratory of Superlight Materials & Surface Technology Ministry of Education, Harbin Engineering University, Harbin 150001, PR China;1. School of Materials Science and Engineering, Beihang University, Beijing 100191, China;2. School of Materials Science and Engineering, Chongqing University of Technology, Chongqing 400054, China;3. Beijing Key Laboratory for Advanced Functional Materials and Thin Film Technology, Beihang University, Beijing 100191, China;4. No. 52 Institute of China Ordnance Industries Group, YanTai 261053, China;1. Department of Metallurgy and Materials Engineering, Hanyang University, Ansan 426-791, South Korea;2. School of Materials Science and Engineering, Yeungnam University, Gyeongsan 712-749, South Korea |
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| Abstract: | Dry sliding wear tests on 5 wt.% copper oxide doped yttria stabilized zirconia polycrystals (CuO–TZP) composite have been performed against alumina, zirconia and silicon nitride countersurfaces at 600 °C. The influences of load and countersurface materials on the tribological performance of this composite have been studied. The friction and wear test results indicate a low coefficient of friction and specific wear rate for alumina and zirconia countersurfaces at F = 1 N load (maximum Hertzian pressure ～0.5 GPa). Examination of the worn surfaces using scanning electron microscope/energy dispersive spectroscopy confirmed the presence of copper rich layer at the edge of wear scar on the alumina and zirconia countersurfaces. However, Si3N4 countersurface sliding against CuO–TZP shows a relatively higher coefficient of friction and higher wear at 1 N load condition. These results suggest that the countersurface material significantly affect the behavior of the third body and self-lubricating ability of the composite. |
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