Synthesis and Characterization of Ti₃SiC₂ Matrix Multiphase Ceramic

Abstract:

Titanium powder, silicon powder and carbon powder were used for the preparation of Ti₃SiC₂ matrix multiphase ceramic by self-propagating high temperature synthesis method (SHS) in air condition. The product was examined by XRD for qualitative and quantitative analysis, SEM for morphology analysis and infrared spectroscopy for transmittance analysis. It was shown in the research that product which was with titanium powder, silicon powder, and carbon powder as raw material was consist of three phases, Ti₃SiC₂ (76.6 wt%), TiC (21.2 wt%) and TiSi₂ (2.2 wt%). TiC phase and TiSi₂ phase distributed on the Ti₃SiC₂ phase matrix of the multiphase ceramic in the form of particles. Ti₃SiC₂ matrix multiphase ceramic which was with titanium powder, silicon powder, boron carbide powder and carbon powder as the raw material was also consist of three phases, Ti₃SiC₂, TiC and TiB₂. The infrared transmittance in the wave numbers of 1500-4000 cm^-1 is less than 15 %. The infrared transmittance of the product with a certain additive in the wave numbers of 600-4000 cm^-1 can be dropped below 10 %. Ti₃SiC₂ matrix multiphase ceramic may be a new high radiation infrared material, which has high temperature resistance, wear resistance and wide band.

• Periodical: Key Engineering Materials (Volumes 602-603)
• Pages: 503-506
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.602-603.503
• Online since: March 2014
• Authors: Jun Shou Li*, Su Li, Fang Zhao, Ming Yuan Wang
• Keywords: Combustion Synthesis, Infrared Radiation Material, Multiphase Ceramic, Ti₃SiC₂

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