Mallik, Awadesh Kumar and Reddy, K. Madhav and Acikbas, Nurcan Calis and Kara, Ferhat and Mandal, Hasan and Basu, Debabrata and Basu, Bikramjit (2011) Influence of SiC addition on tribological properties of SiAlON. Ceramics International, 37 (7). pp. 2495-2504. ISSN 0272-8842

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Abstract

The tribological properties of gas pressure sintered SiAlON and its composite with 18 wt% silicon carbide (SiC) against two different mating materials, i.e., alumina and SiAlON are evaluated. SiAlON and SiAlON-18%SiC composite ceramics were prepared by pressure less sintering and gas pressure sintering. Fretting wear tests were carried out under dry unlubricated ambient conditions (room temperature 23-25 degrees C; relative humidity 50-55%) with a load of 8 N for 45,000 cycles. Friction and wear properties of SiAlON-SiC proved better than the monolithic SiAlON. The formation of silica roll like structure on the composite worn surface was observed. (C) 2011 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

Item Type:	Article
Uncontrolled Keywords:	Sintering; SiAlON and SiAlON-SiC composite; Hertzian contact pressures; Silica roll; Tribology
Subjects:	Engineering Materials
Divisions:	Bioceramics & Coating
Depositing User:	Bidhan Chaudhuri
Date Deposited:	16 Jan 2012 12:15
Last Modified:	25 Feb 2013 08:19
URI:	http://cgcri.csircentral.net/id/eprint/286

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