Singha Roy, R and Chanda, Abhijit and Basu, Debabrata (2005) A comparative study of alumina wear in air and distilled water. Journal of The Institution of Engineers (India),Pt MM, 86 (Oct). pp. 59-63.

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Abstract

Wear behaviour of high density high purity alumina against itself was studied at low speeds in air as well as in distilled water using a pin-ondisc machine. Depending on the apparent contact pressure and environment used, different wear mechanisms were identified. It was observed that in dry sliding (ie, without lubrication), abrasive ploughing and grain boundary microcracking causing grain pull out were dominant mechanisms at low contact pressure while at higher contact pressure, asperity melting due to high flash temperature was found. In wet sliding, the mechanism was different and associated with the formation of aluminium hydroxide that acted as a solid lubricant between the contacting surfaces reducing the wear at lower contact pressure. At higher pressure, clear intergranular fracture was noticed.

Item Type:	Article
Subjects:	Engineering Materials
Divisions:	Bioceramics & Coating
Depositing User:	Bidhan Chaudhuri
Date Deposited:	22 Mar 2012 09:51
Last Modified:	22 Mar 2012 09:51
URI:	http://cgcri.csircentral.net/id/eprint/1319

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