Au51Ce14: enthalpy of formation
9 accepted literature formation-enthalpy value(s) (experimental 5, model 4); experimental median -49.5 kJ/mol-atom (n = 5).
Systems: Au–Ce
Literature values
| Value | Phase as printed | T (K) | Class | Method | System | Source | Location | Quote |
|---|---|---|---|---|---|---|---|---|
| -55 kJ/mol-atom ± 1.7 | αCe14Au51 | 1123 | experimental | Calorimetry | Au–Ce | [1] Moustaine 2016 cites Janghorban 1994 | Table 2, p. 3, row 22 report | |
| -53.2 kJ/mol-atom ± 1.9 | αCe14Au51 | 298.15 | experimental | Calorimetry | Au–Ce | [1] Moustaine 2016 cites Janghorban 1994 | Table 2, p. 3, row 24 report | |
| -49.5 kJ/mol-atom ± 2.2 | Au51Ce14 | 298.15 | experimental | calorimetry | Au–Ce | [2] Dong 2013 cites Fitzner 1993 | Table 4, p. 4, row 13 report | |
| -49.5 kJ/mol-atom ± 2.2 | αCe14Au51 | 298.15 | experimental | Calorimetry | Au–Ce | [1] Moustaine 2016 cites Fitzner 1993 doi | Table 2, p. 3, row 25 report | |
| -44 kJ/mol-atom ± 5 | αCe14Au51 | 1223 | experimental | Calorimetry | Au–Ce | [1] Moustaine 2016 cites LomelloeTafin 2006 | Table 2, p. 3, row 23 report | |
| -57.71 kJ/mol-atom | αCe14Au51 | 298.15 | model | Optimization | Au–Ce | [1] Moustaine 2016 cites Dong 2013 doi | Table 2, p. 3, row 26 report | |
| -57.71 kJ/mol-atom | Au51Ce14 | 289 | model | Au–Ce | [2] Dong 2013 | Table 4, p. 4, row 14 report | ||
| -55.99 kJ/mol-atom | αCe14Au51 | 298.15 | model | Optimization | Au–Ce | [1] Moustaine 2016 | Table 2, p. 3, row 27 report | |
| -53.1 kJ/mol-atom | βCe14Au51 | 298.15 | model | Optimization | Au–Ce | [1] Moustaine 2016 | Table 2, p. 3, row 28 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.
| Value | Unit | Printed | Reading | Method (class, basis) | Composition | Scatter | Conversion | Effective |
|---|---|---|---|---|---|---|---|---|
| -55 | kJ/mol-atom | 1.7 | 0.5 | 3.2 (solution_reaction_calorimetry, calibrated) | 3.2 | |||
| -53.2 | kJ/mol-atom | 1.9 | 0.05 | 3.2 (solution_reaction_calorimetry, calibrated) | 3.2 | |||
| -49.5 | kJ/mol-atom | 2.2 | 0.05 | 3.2 (solution_reaction_calorimetry, calibrated) | 3.2 | |||
| -49.5 | kJ/mol-atom | 2.2 | 0.05 | 3.2 (solution_reaction_calorimetry, calibrated) | 3.2 | |||
| -44 | kJ/mol-atom | 5 | 0.5 | 3.2 (solution_reaction_calorimetry, calibrated) | 5 | |||
| -57.71 | kJ/mol-atom | 0.005 | 3.9 (model_calculated, calibrated) | 3.9 | ||||
| -57.71 | kJ/mol-atom | 0.005 | 3.9 (model_calculated, calibrated) | 3.9 | ||||
| -55.99 | kJ/mol-atom | 0.005 | 3.9 (model_calculated, calibrated) | 3.9 | ||||
| -53.1 | kJ/mol-atom | 0.05 | 3.9 (model_calculated, calibrated) | 3.9 |
Sources
- D. Moustaine, K. Mahdouk, Thermodynamic reassessment of the cerium gold binary system, Journal of Alloys and Compounds 683, 599-609 (2016). doi:10.1016/j.jallcom.2016.05.116
- H.Q. Dong, X.M. Tao, T. Laurila, V. Vuorinen, M. Paulasto-Kröckel, Thermodynamic modeling of Au–Ce–Sn ternary system, Calphad 42, 38-50 (2013). doi:10.1016/j.calphad.2013.07.013