Influence of SiC addition on tribological properties of SiAlON

Mallik A. K., Reddy K. M., ÇALIŞ AÇIKBAŞ N., Kara F., MANDAL H., Basu D., ...More

CERAMICS INTERNATIONAL, vol.37, no.7, pp.2495-2504, 2011 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 37 Issue: 7
  • Publication Date: 2011
  • Doi Number: 10.1016/j.ceramint.2011.03.055
  • Journal Name: CERAMICS INTERNATIONAL
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.2495-2504
  • Keywords: Sintering, SiAlON and SiAlON-SiC composite, Hertzian contact pressures, Silica roll, Tribology, FLUORINE-CONTAINING OILS, SILICON-CARBIDE, WEAR BEHAVIOR, CERAMICS, LUBRICATION, FRICTION, WATER, STEEL, MICROSTRUCTURE, COMPOSITES
  • Anadolu University Affiliated: Yes

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.