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Distinct wear characteristics of submicrometer-grained alumina in air and distilled water: A brief analysis on experimental observation

IR@CGCRI: CSIR-Central Glass and Ceramic Research Institute, Kolkata

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Title Distinct wear characteristics of submicrometer-grained alumina in air and distilled water: A brief analysis on experimental observation
 
Creator Singha Roy, Rajdeep
Basu , Debabrata
Chanda , A
Mitra, M K
 
Subject Microstructure and Characterization
 
Description Sliding wear behavior of submicrometer-grained (grain size=0.45 mu m) alumina was investigated in air and distilled water and the result was compared with the wear characteristics of similar material with coarser grain sizes. Experiments were conducted with a pin-on-disk wear-testing machine under identical test conditions. Alumina with submicrometer grain size exhibits substantially higher wear resistance compared with the coarser-grained materials in both the environments. Scanning electron micrograph of the wornout samples revealed that in air, formation and subsequent degeneration of the compacted layer of wear-debris on the sliding surface govern the wear loss. In distilled water, no compacted layer was observed and in such cases, grain pullout through coalescence of microcracks along grain boundaries was found to be the dominant mechanism of wear.
 
Publisher Wiely / American Ceramic Society
 
Date 2007-09
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://cgcri.csircentral.net/605/1/singharoy2%2D2007.pdf
Singha Roy, Rajdeep and Basu , Debabrata and Chanda , A and Mitra, M K (2007) Distinct wear characteristics of submicrometer-grained alumina in air and distilled water: A brief analysis on experimental observation. Journal of the American Ceramic Society, 90 (9). pp. 2987-2991. ISSN 0002-7820
 
Relation http://cgcri.csircentral.net/605/