Journal
MATERIALS
Volume 10, Issue 11, Pages -Publisher
MDPI
DOI: 10.3390/ma10111255
Keywords
aluminum; titanium carbide; microwave; spark plasma sintering
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In this research, the mechanical properties and microstructure of Al-15 wt % TiC composite samples prepared by spark plasma, microwave, and conventional sintering were investigated. The sintering process was performed by the speak plasma sintering (SPS) technique, microwave and conventional furnaces at 400 degrees C, 600 degrees C, and 700 degrees C, respectively. The results showed that sintered samples by SPS have the highest relative density (99% of theoretical density), bending strength (291 +/- 12 MPa), and hardness (253 +/- 23 HV). The X-ray diffraction (XRD) investigations showed the formation of TiO2 from the surface layer decomposition of TiC particles. Scanning electron microscopy (SEM) micrographs demonstrated uniform distribution of reinforcement particles in all sintered samples. The SEM/EDS analysis revealed the formation of TiO2 around the porous TiC particles.
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