Al4W: enthalpy of formation

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

Systems: Al–W

Literature values

Enthalpy of formation of Al4W reported in the literature (1)
ValuePhase as printedT (K)ClassMethodSystemSourceLocationQuote
-14.86 kJ/mol-atomAl4W0DFTDFTAl–W[1] Wang 2017
cites ref. 23		Table 1, p. 36, row 17
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 Al4W
ValueUnitPrintedReadingMethod (class, basis)CompositionScatterConversionEffective
-14.86kJ/mol-atom0.0058.395 (dft, calibrated)8.395

Sources

  1. Peisheng Wang, Wei Xiong, Ursula R. Kattner, Carelyn E. Campbell, Eric A. Lass, Oleg Y. Kontsevoi et al., Thermodynamic re-assessment of the Al-Co-W system, Calphad 59, 112-130 (2017). doi:10.1016/j.calphad.2017.09.007