Abstract
Low-temperature synthesis of ceramics and cemented carbides based on plasma-chemical tungsten and titanium carbides nanopowders and micron-sized commercial titanium carbide powders has been investigated. Compact samples were prepared by spark plasma sintering (SPS), which consists in high-speed heating of powders at a rate of 50°C/min in vacuum under pressure up to 70 MPa. Compact samples with high density were obtained in a narrow temperature region above 1000. Phase evolution of double carbide having FCC lattice is considered based upon XRD data. A model for calculating the theoretical density of this phase is proposed, the calculated values agree with the experimental data.
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Terent’ev, A.V., Blagoveshchenskij, Y.V., Isaeva, N.V. et al. Investigation of (Ti,W)C Phase Evolution during Spark Plasma Sintering of Nanoscale Tungsten and Titanium Carbides Powders at Low Temperatures. Russ. Metall. 2023, 1319–1330 (2023). https://doi.org/10.1134/S0036029523090161
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DOI: https://doi.org/10.1134/S0036029523090161