Abstract—
We have studied the self-propagating high-temperature synthesis (SHS) process due to the combustion of a WO3 + ZrO2 + TiO2 + Mg multicomponent mixture. The ratio of the oxide phases and excess Mg content have been shown to have a significant effect on the phase composition of the synthesized material. Increasing the WO3 content of the starting mixture from 7.4 to 59.6% raises the adiabatic combustion temperature from 1560 to 3099 K and reduces the percentage of Zr and Ti metals in the synthesis product, which pass into the W〈Zr,Ti〉 solid solution. We have optimized the composition of the starting mixture, 50.6% WO3 + 6.9% ZrO2 + 4.5% TiO2 + 38% Mg, so that its combustion yields a semifinished product consisting of W〈Zr,Ti〉 alloy, MgO, and Mg. After acid leaching, we have obtained a single-phase W〈Zr,Ti〉 substitutional solid solution. Chemical analysis and X-ray diffraction data demonstrate that the alloy thus prepared is similar in composition to W0.66Zr0.17Ti0.17.
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REFERENCES
Blazlna, Z., Trojko, R., and Ban, Z., High temperature equilibria in the Zr1–x HfxM2, Zr1–xTixM2 and Hf1–xTixM2 (M = Mo or W) systems, J. Less-Common Met., 1982, vol. 83, no. 2, pp. 175–183. https://doi.org/10.1016/0022-5088(82)90268-5
Zakharov, A.M. and Savitskii, E.M., Phase diagram of the ternary system W–Zr–Ti, Izv. Akad. Nauk SSSR, 1966, no. 5, pp. 159–168.
Lukáč, F., Vilémová, M., Nevrlá, B., Klečka, J., Chraska, T., and Molnárová, O., Properties of mechanically alloyed W–Ti materials with dual phase particle dispersion, Metals, 2017, vol. 7, paper 3. https://doi.org/10.3390/met7010003
Dolukhanyan, S.K., Aleksanyan, A.G., Shekhtman, V.Sh., Hakobyan, HG., Mayilyan, D.G., Aghadjanyan, N.N., Abrahamyan, K.A., Mnatsakanyan, N.L., and TerGalstyan, O.P., Synthesis of transition metal hydrides and a new process for production of refractory metal alloys: an autoreview, Int. J. Self-Propag. High-Temp. Synth., 2010, vol. 19, no. 2, pp. 85–93. https://doi.org/10.3103/S1061386210020020
Adler, S. and Farrar, P.A., On the system titanium–zirconium, Trans. Metall. Soc. AIME, 1966, vol. 236, pp. 1061–1064.
Vershinnikov, V.I., Kovalev, D.Yu., Ignat’eva, T.I., Aleshin, V.V., and Mikhailov, Yu.M., Feasibility of producing a Ti–Zr alloy via combustion in the TiO2–ZrO2–Mg system, Inorg. Mater., 2019, vol. 55, no. 2, pp. 185–190. https://doi.org/10.1134/S0020168519020146
International Centre for Diffraction Data. http://www.icdd.com.
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Vershinnikov, V.I., Kovalev, D.Y. & Ignat’eva, T.I. Synthesis of W–Zr–Ti Alloy via Combustion in the WO3–ZrO2–TiO2–Mg System. Inorg Mater 57, 498–502 (2021). https://doi.org/10.1134/S0020168521050095
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DOI: https://doi.org/10.1134/S0020168521050095