Influence of SiC addition on tribological properties of SiAlON

Awadesh Kumar Mallik, K. Madhav Reddy, Nurcan Calis Acikbas, Ferhat Kara, Hasan Mandal, Debabrata Basu, Bikramjit Basu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

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 °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.

Original languageEnglish
Pages (from-to)2495-2504
Number of pages10
JournalCeramics International
Volume37
Issue number7
DOIs
Publication statusPublished - Sept 2011
Externally publishedYes

Keywords

  • A. Sintering
  • Hertzian contact pressures
  • SiAlON and SiAlON-SiC composite
  • Silica roll
  • Tribology

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