SYMPOSIA PAPER Published: 01 January 1992

Results from a U.K. Interlaboratory Project on Dry Sliding Wear of Alumina


Eleven U.K. laboratories performed dry pin-on-disk wear tests on a 95% alumina ceramic under a load of 40 N and at a sliding speed of 0.1 ms-1. Specimens were supplied with polished and ground finishes; the ground finish gave higher wear and lower friction than the polished specimens. Subsidiary experiments showed a large effect of humidity on wear with high wear rates at low humidity levels. The measure of wear with the best repeatability was scar size measurements at 5%, and the worst was mass loss measurements at 42% (expressed as ratios of 95% confidence intervals to the mean values). The reproducibility of friction measurements was 14%.

Author Information

Gee, MG
National Physical Laboratory, Teddington, Middlesex, England
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Developed by Committee: G02
Pages: 129–150
DOI: 10.1520/STP23862S
ISBN-EB: 978-0-8031-5216-8
ISBN-13: 978-0-8031-1476-0