Bi9Ti8: enthalpy of formation

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

Systems: Bi–Ti

Literature values

Enthalpy of formation of Bi9Ti8 reported in the literature (1)
ValuePhase as printedT (K)ClassMethodSystemSourceLocationQuote
-16.71 kJ/mol (basis unstated)Bi9Ti80DFTFirst-principleBi–Ti[1] Huang 2014Table 4, p. 5, row 4
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 Bi9Ti8
ValueUnitPrintedReadingMethod (class, basis)CompositionScatterConversionEffective
-16.71kJ/mol (basis unstated)0.00592.34 (dft, calibrated)92.34

Sources

  1. L.H. Huang, Q. Chen, Y. He, X.M. Tao, G.M. Cai, H.S. Liu et al., Thermodynamic modeling of Fe–Ti–Bi system assisted with key experiments, Calphad 46, 34-41 (2014). doi:10.1016/j.calphad.2014.01.001