Thermodynamic properties of the chromium telluride Cr2Te3

Calorimetric measurement of the intermetallic compounds Cr3Ga and CrGa4 and thermodynamic assessment of the (Cr–Ga) system

“…The enthalpy of formation of Cr 5 Ga 6 is in reasonable agreement with the values proposed by de Boer et al [17]. Considering the phase CrGa 4 it can be seen that our experimental and optimized formation enthalpy are within the uncertainties of the experimental results of Goncharuk and Lukashenko [6] and the estimation derived from Miedema's model [17].…”

“…Goncharuk and Lukashenko [6] deter- mined the enthalpy of formation of this compound at 577 • C by EMF measurement of solid electrolyte pile and give f H( 1 4 ␣Cr 3 Ga) = −3300 J/mol referred to solid chromium and gallium. This result, without being rigorously in agreement with ours, is rather close taking into account considerable uncertainties, which stick to this method of determination.…”

“…As for the compound Cr 5 Ga 6 its crystallographic structure was given in [5]. The enthalpies of formation of the binary Cr 3 Ga, Cr 5 Ga 6 and CrGa 4 phases were deduced by Goncharuk and Lukashenko [6] by using EMF method at 577 • C. No calorimetric determination of the thermodynamic properties of this system was published up to now.…”

Physical properties of thermoelectric zinc antimonide using first-principles calculations

“…Concerning the formation enthalpy of ZnSb the experimental values (from -0.07 to -0.09 eV/atom) [12,[16][17] are relatively small and the DFT-GGA calculations are overestimating these results (about -0.035 eV/atom).…”

“…Some studies of n-doped compounds with impurities such as In, Te or Se were also reported [9,11] but the zT was too low. In parallel there were also several studies of the thermodynamic properties of ZnSb and CdSb-ZnSb alloys with the same structure [12][13][14][15][16][17]. Since the nineties, due to the discovery of very good thermoelectric properties in Zn 4 Sb 3 [2] the main studies of Zn-Sb systems were dedicated to this last compound and the study of orthorhombic ZnSb became confidential.…”