Synthesis of WSi2-W5Si3 Intermetallic Alloy via Self-Propagating High Temperature Synthesis

Si Thu Myint Maung; Tawat Chanadee; Sutham Niyomwas

doi:10.4028/www.scientific.net/SSP.280.121

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HomeSolid State PhenomenaSolid State Phenomena Vol. 280Synthesis of WSi2-W5Si3 Intermetallic Alloy via...

Synthesis of WSi₂-W₅Si₃ Intermetallic Alloy via Self-Propagating High Temperature Synthesis

Abstract:

Intermetallic alloy of tungsten silicide (WSi₂-W₅Si₃) was synthesized by self-propagating high temperature synthesis (SHS) from the reactant of tungsten oxide (WO₃) and silicon lump (Si) using magnesium (Mg) as fuel. The standard Gibbs energy minimization method was used to calculate the equilibrium composition of the possible reacting species. The as-SHS products were characterized by X-ray diffraction (XRD) technique. The magnesiothermic reaction process successfully synthesized dense of WSi₂-W₅Si₃ intermetallic alloy. According to the experimental results, it can be proposed that the reaction also promotes the phase separation between alloy and oxide slag of the product.

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Solid State Phenomena (Volume 280)

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121-126

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https://doi.org/10.4028/www.scientific.net/SSP.280.121

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August 2018

Authors:

Si Thu Myint Maung*, Tawat Chanadee, Sutham Niyomwas

Keywords:

Intermetallic Alloy, Self-Propagating High Temperature Synthesis (SHS), WSi₂-W₅Si₃

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