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Effect of residual compressive surface stress on severe wear of alumina–silicon carbide two-layered composites
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Dancer, Claire E. J., Yahya, N. A., Berndt, T., Todd, R. I. and de Portu, G. (2014) Effect of residual compressive surface stress on severe wear of alumina–silicon carbide two-layered composites. Tribology International, 74 . pp. 87-92. doi:10.1016/j.triboint.2014.02.010 ISSN 0301-679X.
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Official URL: http://dx.doi.org/10.1016/j.triboint.2014.02.010
Abstract
Ceramics consisting of Al2O3 with a surface layer of Al2O3-10 vol% SiC have been fabricated by hot pressing. The residual compressive stress at the composite surface due to the difference in thermal expansion between the two layers has been measured experimentally by Cr3+ fluorescence microspectroscopy. The wear resistance in the severe wear regime of the two-layered samples was higher than those of a reference single-layer Al2O3-10 vol% SiC sample. The improvement in the wear resistance was due to a decrease in the amount of surface pullout which was attributed to the presence of the biaxial residual compressive stress in the surface layer of the specimens.
Item Type: | Journal Article | ||||||||
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||||||
Journal or Publication Title: | Tribology International | ||||||||
Publisher: | Elsevier Science Ltd. | ||||||||
ISSN: | 0301-679X | ||||||||
Official Date: | June 2014 | ||||||||
Dates: |
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Volume: | 74 | ||||||||
Page Range: | pp. 87-92 | ||||||||
DOI: | 10.1016/j.triboint.2014.02.010 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published |
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