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Abrasion of $Al_{2}O_{3}-SiC-(Al,Si)$ composites made by melt oxidation

Singh, RA and Jayaram, V and Biswas, SK (1999) Abrasion of $Al_{2}O_{3}-SiC-(Al,Si)$ composites made by melt oxidation. In: Journal of Materials Research, 14 (1). pp. 64-67.

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We report here the remarkable abrasion wear resistance (normal pressure: 2.92 to 5.42 MPa, sliding speed: 0.25 to 3 m/s) of a soft (relative to other structural ceramics) melt-oxidized ceramic matrix composite Al2O(3)-SiC-(Al, Si), In spite of being half as hard and more porous than zirconia toughened alumina (ZTA), a common cutting tool material, this composite fabricated at 1100 degrees C shows wear resistance comparable to that of ZTA at sliding speeds more than 2 m/s. The ability of this composite to generate a metal-rich tribofilm when rubbed and its high thermal shock resistance are factors which may be responsible for this unique performance.

Item Type: Journal Article
Publication: Journal of Materials Research
Publisher: Materials Research Society
Additional Information: Copyright of this article belongs to Materials Research Society.
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Division of Mechanical Sciences > Mechanical Engineering
Date Deposited: 26 Dec 2008 10:46
Last Modified: 26 Dec 2008 10:46
URI: http://eprints.iisc.ac.in/id/eprint/17631

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