Department of Metallurgy.
Microstructure Control and Wear of Al2O3-SiC-(Al, Si) Composites Made by Melt Oxidation
Article first published online: 13 APR 2005
Journal of the American Ceramic Society
Volume 79, Issue 3, pages 770–772, March 1996
How to Cite
Jayaram, V., Manna, R., Kshetrapal, M. G., Sarkar, J. and Biswas, S. K. (1996), Microstructure Control and Wear of Al2O3-SiC-(Al, Si) Composites Made by Melt Oxidation. Journal of the American Ceramic Society, 79: 770–772. doi: 10.1111/j.1151-2916.1996.tb07941.x
N. E. Claussen—contributing editor
Supported by the planning commission, Government of India.
- Issue published online: 13 APR 2005
- Article first published online: 13 APR 2005
- Manuscript No. 193066. Received November 4, 1994; approved December 4, 1995.
Ceramic matrix composites of Al2O3-SiC-(Al, Si) have been fabricated by directed melt oxidation of aluminum alloys into SiC particulate preforms. The proportions of AI2O3, alloy, and porosity in the composite can be controlled by proper selection of SiC particle size and the processing temperature. The wear resistance of composites was evaluated in pin-on-disk experiments against a hard steel substrate. Minimum wear rate comparable to conventional ceramics such as ZTA is recorded for the composition containing the highest fraction of alloy, owing to the development of a thin and adherent tribofilm with a low coefficient of friction.