Spark Plasma Sintering of Paper-Derived Ti₃AlC₂-Based Composites: Influence of Sintering Temperature

Abstract:

This paper describes the influence of sintering temperature on phase composition and microstructure of paper-derived Ti₃AlC₂ composites fabricated by spark plasma sintering. The composites were sintered at 100 MPa pressure in the temperature range of 1150-1350 °C. Phase composition and microstructure were analyzed by X-ray diffraction and scanning electron microscopy, respectively. The multiphase structure was observed in the sintered composites consisting of Ti₃AlC₂, Ti₂AlC, TiC and Al₂O₃ phases. The decomposition of the Ti₃AlC₂ phase into Ti₂AlC and TiC carbide phases was observed with temperature rise. The total content of Ti₃AlC₂ and Ti₂AlC phases was reduced from 84.5 vol.% (1150 °C) to 69.5 vol.% (1350 °C). The density of composites affected by both the content of TiC phase and changes in porosity.

• Periodical: Materials Science Forum (Volume 1016)
• Pages: 1790-1796
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.1016.1790
• Online since: January 2021
• Authors: Maxim Syrtanov*, Egor Kashkarov, Tatyana Murashkina, Nahum Travitzky
• Keywords: MAX-Phase, Microstructure, Paper-Derived Ti₃AlC₂- Based Composites, Phase Composition, Preceramic Paper, Spark Plasma Sintering

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