Singha Roy, R and Mondal, A and Chanda, A and Basu, Debabrata and Mitra, M K (2007) Sliding wear behavior of submicron-grained alumina in biological environment. Journal of Biomedical Materials Research Part A, 83A (2). pp. 257-262. ISSN 1549-3296

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Abstract

Sliding wear behavior of sintered alumina with grain sizes between 0.45 and 4 mu m was studied in bovine serum environment with unidirectional pin-on-disc wear testing machine. Submicron grained alumina of average grain size of G = 0.45 pm exhibits lowest wear factor among the others. It was found that grain pull out or localized grain dislodgement caused by coalescence of grain boundary microcracks is the basic wear mechanism of submicron grained alumina though the extent of cracking and pull-out was substantially less than that with higher grained material. However, in few cases, some areas where substantial volume of material was removed following pull-out of cluster of grains have also been observed

Item Type:	Article
Subjects:	Physical Properties
Divisions:	Bioceramics & Coating
Depositing User:	Namita Dutta
Date Deposited:	01 Feb 2012 12:42
Last Modified:	28 Mar 2018 09:22
URI:	http://cgcri.csircentral.net/id/eprint/606

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