Influence of countersurface materials on dry sliding performance of CuO/Y-TZP composite at 600 °C

Valefi, M. and Pathiraj, B. and Rooij de, M.B. and Vries de, E.G. and Schipper, D.J. (2012) Influence of countersurface materials on dry sliding performance of CuO/Y-TZP composite at 600 °C. Journal of the European Ceramic Society, 32 (16). 4137 - 4147. ISSN 0955-2219

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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.
Item Type:	Article
Faculty:	Engineering Technology (CTW)
Research Chair:	Surface Technology and Tribology (STT)
Research Group:	Design, Production and Management (DPM) Mechanical Automation and Mechatronics
Link to this item:	http://purl.utwente.nl/publications/81377
Official URL:	http://dx.doi.org/10.1016/j.jeurceramsoc.2012.07.025
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