NbZn2: enthalpy of formation

2 accepted literature formation-enthalpy value(s) (model 1, DFT 1).

Systems: Nb–Zn

Literature values

Enthalpy of formation of NbZn2 reported in the literature (2)
ValuePhase as printedT (K)ClassMethodSystemSourceLocationQuote
-15.233 kJ/mol (basis unstated)NbZn20modelNb–Zn[1] Long 2016Table 1, p. 3, row 1
report
-15.236 kJ/mol (basis unstated)NbZn20DFTNb–Zn[1] Long 2016Table 1, p. 3, row 1
report

Uncertainty budget

Components kept separate, in the value's unit (literature SCHEMA.md, UNCERTAINTY_CALIBRATION.md): effective = max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter). The method floor is the robust between-study scatter of the method class in ORCHID (calibrated) or a documented prior; printed values and printed uncertainties are unchanged.

Uncertainty budget of the literature values of NbZn2
ValueUnitPrintedReadingMethod (class, basis)CompositionScatterConversionEffective
-15.233kJ/mol (basis unstated)5.000e-411.7 (model_calculated, calibrated)11.7
-15.236kJ/mol (basis unstated)5.000e-425.18 (dft, calibrated)25.18

Sources

  1. Zhaohui Long, Jin Gong, Jing Ding, Chihua Tang, Zhi Li, Fucheng Yin, Thermodynamic Assessment of Zn-Fe-Nb Ternary System, J. Phase Equilib. Diffus. 37, 293-300 (2016). doi:10.1007/s11669-016-0457-z