Co4Y: enthalpy of formation

2 accepted literature formation-enthalpy value(s) (experimental 1, DFT 1); experimental median -12.2 kJ/mol-atom (n = 1).

Systems: Co–Y

Literature values

Enthalpy of formation of Co4Y reported in the literature (2)
ValuePhase as printedT (K)ClassMethodSystemSourceLocationQuote
-12.2 kJ/mol-atom ± 0.87Y(Co)4(Co)298.15experimentalCo–Y[1] Golumbfskie 2006
cites Subramanian 1985 doi		Table 4, p. 3, row 15
report
-9.42 kJ/mol-atomY(Co)4(Co)0DFTCo–Y[1] Golumbfskie 2006Table 4, p. 3, row 3
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 Co4Y
ValueUnitPrintedReadingMethod (class, basis)CompositionScatterConversionEffective
-12.2kJ/mol-atom0.870.053.5 (unknown, calibrated)3.5
-9.42kJ/mol-atom0.0053.929 (dft, calibrated)3.929

Sources

  1. William Golumbfskie, Zi-Kui Liu, CALPHAD/first-principles re-modeling of the Co–Y binary system, Journal of Alloys and Compounds 407, 193-200 (2006). doi:10.1016/j.jallcom.2005.06.037