Friction of metal sliders on toughened zirconia ceramic between 298 and 973 K

  • Carter G
  • Hooper R
  • Henshall J
 et al. 
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Abstract

This paper reports the results of an investigation of the coefficients of dynamic friction, in unlubricated conditions, of stainless and medium carbon steels, copper and aluminium sliders on a commercially available ceria stabilized, high toughness zirconia ceramic at temperatures up to 973 K. These sliding materials were selected to provide a range of chemical and physical properties representative of commercially available alloys. Measurements were made using 136° apical angle metal cones against the polished zirconia ceramic in air, using a normal load of 3.9 N. The friction coefficients increased from about 0.1 at room temperature to greater than 0.5 at elevated temperatures. Optical and scanning electron microscopy, with energy-dispersive X-ray analysis, showed that the increase in the friction coefficient with increasing temperature was associated with the transfer of slider material onto the ceramic counterface. © 1991.

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Authors

  • G. M. Carter

  • R. M. Hooper

  • J. L. Henshall

  • M. O. Guillou

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