Title

Sliding wear behaviour of Ca α-sialon ceramics at 600° C in air

Document Type

Journal Article

Publisher

Elsevier Ltd

Faculty

Faculty of Computing, Health and Science

School

School of Engineering

RAS ID

8907

Comments

Xie, Z. H., Hoffman, M., Moon, R. J., Munroe, P. R., & Cheng, Y. B. (2006). Sliding wear behaviour of Ca α-sialon ceramics at 600° C in air. Wear, 260(11-12), 1356-1360.

Abstract

As an extension of a previous investigation on the wear behaviour of Ca α-sialon ceramics of differing microstructures at room temperature, wear testing was conducted at 600 °C in air to explore the effects of microstructure, contact pressure and sliding speed on the wear behaviour. Under all loading conditions from 1 MPa to 1 GPa, a constant high friction coefficient was observed and a severe wear process was dominant, in which the sliding contact induced cracks were observed in different microstructures. Wear particles were generated along the wear track, but no tribofilm was detected. Increasing the sliding speed from 10 to 23 cm/s was found to significantly increase wear rate. However, variations in microstructure had little impact. That is, large elongated-grained α-sialon exhibited only a slightly lower wear rate than fine equiaxed-grained α-sialon.

DOI

10.1016/j.wear.2005.09.011

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Link to publisher version (DOI)

10.1016/j.wear.2005.09.011