Experimental And Thermodynamic Studies Applied To The Ga-M (M = Mo, Nb, Cr) Binary Alloys
We used three calorimetric methods: direct reaction, progressive precipitation and indirect mixing calorimetry. We
obtained the enthalpies of formation of eight compounds: Ga3Mo, Ga5Mo, GaNb3, Ga5Nb4, Ga3Nb, -GaCr3, -GaCr3 and
Ga4Cr. Those data permits to improve thermodynamic models and understand the behaviours of GaAs semiconductor towards
the three transition metals molybdenum, niobium and chromium.
Index Terms- Calorimetry, gallium alloys, semiconductor, enthalpy of formation, binary compounds.