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Intermetallic WSi2–W5Si3 Alloy by Magnesiothermic SHS Reaction

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Abstract

Intermetallic tungsten silicide alloy WSi2–W5Si3 was successfully synthesized via magnesiothermic SHS reaction in the WO3–Si–Mg system. Equilibrium composition of combustion products was calculated by standard Gibbs energy minimization method and the combustion products were characterized by XRD, SEM, and EDX. The synthesized alloy had a density of 8.97 g/cm3 (96.4% of theoretical). The process can be readily recommended for practical implementation.

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Authors and Affiliations

  1. Department of Mining and Materials Engineering, Faculty of Engineering, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand

    S. T. M. Maung

  2. Department of Materials Science and Technology, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand

    T. Chanadee

  3. Department of Mechanical Engineering, Faculty of Engineering, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand

    S. Niyomwas

  4. Ceramic and Composite Materials Engineering Research Group (CMERG), Center of Excellence in Materials Engineering (CEME)), Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand

    S. T. M. Maung, T. Chanadee & S. Niyomwas

Authors
  1. S. T. M. Maung
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  2. T. Chanadee
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  3. S. Niyomwas
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Correspondence to S. Niyomwas.

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Maung, S.T.M., Chanadee, T. & Niyomwas, S. Intermetallic WSi2–W5Si3 Alloy by Magnesiothermic SHS Reaction. Int. J Self-Propag. High-Temp. Synth. 28, 50–55 (2019). https://doi.org/10.3103/S1061386219010096

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  • DOI: https://doi.org/10.3103/S1061386219010096

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