Influence of SiC addition on tribological properties of SiAlON
Mallik, Awadesh Kumar and Reddy, K. Madhav and Açıkbaş, Nurcan Çalış 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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Official URL: http://dx.doi.org/10.1016/j.ceramint.2011.03.055
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.
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