Mo2Ga2C is a novel MAX phase. The powders of Mo2Ga2C can be synthesized by established technology. However, the powders are difficult to be sintered to obtain dense bulk samples. In this paper, the Mo2Ga2C powders were sintered by spark plasma sintering (SPS)technology. The compositions and microstructures of sintered samples were characterized to explore the impacts of sintering parameters. The suitable parameters to sintering Mo2Ga2C by SPS was at the temperature of 700 ℃ for 20 min with the axial pressure of 30 MPa. The obtained samples had the relative density of 71.81%. Longer holding time was more beneficial to the densification of Mo2Ga2C than higher sintering temperature. Higher axial pressure had a negative effect on the densification of samples. Compared with hot pressing, SPS can make bulk samples of Mo2Ga2C at lower temperature and short time. However, the obtained samples had lower relative density.
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Open Access
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Advanced Ceramics 2023, 44(5-6): 481-489
Published: 01 October 2023
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