Cu27Hf7: enthalpy of formation

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

Systems: Cu–Hf

Literature values

Enthalpy of formation of Cu27Hf7 reported in the literature (2)
ValuePhase as printedT (K)ClassMethodSystemSourceLocationQuote
-7.37 kJ/mol-atomCu54Hf140DFTUSPP-GGACu–Hf[1] Zhong 2013Table 2, p. 7, row 28
report
-6.07 kJ/mol-atomCu54Hf140DFTPBECu–Hf[1] Zhong 2013Table 2, p. 7, row 29
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 Cu27Hf7
ValueUnitPrintedReadingMethod (class, basis)CompositionScatterConversionEffective
-7.37kJ/mol-atom0.0058.395 (dft, calibrated)8.395
-6.07kJ/mol-atom0.0058.395 (dft, calibrated)8.395

Sources

  1. Yu Zhong, Arkapol Saengdeejing, Laszlo Kecskes, Bradley Klotz, Zi-Kui Liu, Experimental and computational studies of the Cu–Hf binary system, Acta Materialia 61, 660-669 (2013). doi:10.1016/j.actamat.2012.10.014