The Effect of Partial Addition of Silicon on the Electromagnetic Behavior of TiC/Ti3AlC2 Ceramic Matrix Composites

Article Type:
Research/Original Article (دارای رتبه معتبر)
In this study, the effect of partial addition of silicon on the structural behavior and electromagnetism of TiC/Ti3AlC2 ceramic matrix composites has been investigated. In this regard, the mechanical alloying and annealing processes were used for the synthesis of the desired composite. Structural and phase investigations were performed using scanning electron microscope, differential thermal analysis, and X-ray diffractometer, and electromagnetic behavior was investigated by network analyzer. The results showed that it was possible to synthesize TiC/Ti3AlC2 composite structure with in-situ partial addition of silicon. 2TiC-Al-Ti-0.2Si system showed the best absorption behavior of electromagnetic waves with reflection loss of about -30.10 dB at matching frequency of 15.1 GHz. It was found that the TiC/Ti3AlC2 composite structure obtained from the mechanical alloying was stable after annealing at 1400 °C. However, the electromagnetic absorption behavior was affected. Thus, the reflection loss of the annealed samples was obtained about -1dB.
Journal of Advanced Materials in Engineering, Volume:42 Issue: 3, 2023
49 to 60  
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