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Influence of SiC addition on tribological properties of SiAlON |
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| Authors: | Awadesh Kumar Mallik K. Madhav Reddy Nurcan Calis Acikbas Ferhat Kara Hasan Mandal Debabrata Basu Bikramjit Basu |
| Affiliation: | aCentral Glass & Ceramic Research Institute, CSIR, Kolkata 700032, India;bLaboratory for Biomaterials, Department of Materials Science and Engineering, Indian Institute of Technology, IIT-Kanpur, India;cDepartment of Mechanical and Manufacturing Engineering, Bilecik University, Bilecik, Turkey;dAnadolu University, Department of Materials Science and Engineering, Eskisehir, Turkey;eSabanci University, Istanbul, Turkey |
| 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. |
| Keywords: | A. Sintering SiAlON and SiAlON&ndash SiC composite Hertzian contact pressures Silica roll Tribology |
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