Ge9Tm5: enthalpy of formation
4 accepted literature formation-enthalpy value(s) (model 4).
Systems: Ge–Tm
Literature values
| Value | Phase as printed | T (K) | Class | Method | System | Source | Location | Quote |
|---|---|---|---|---|---|---|---|---|
| -87.37 kJ/mol-atom | TmGe1.8_LT | model | Prediction | Ge–Tm | [1] Achgar 2018 cites Debski 2014 doi | Table 2, p. 5, row 17 report | ||
| -87.37 kJ/mol-atom | TmGe1.8_HT | model | Prediction | Ge–Tm | [1] Achgar 2018 cites Debski 2014 doi | Table 2, p. 5, row 15 report | ||
| -69.6 kJ/mol-atom | TmGe1.8_LT | model | Optimization | Ge–Tm | [1] Achgar 2018 | Table 2, p. 5, row 16 report | ||
| -69.48 kJ/mol-atom | TmGe1.8_HT | model | Optimization | Ge–Tm | [1] Achgar 2018 | Table 2, p. 5, row 14 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 |
|---|---|---|---|---|---|---|---|---|
| -87.37 | kJ/mol-atom | 0.005 | 3.9 (model_calculated, calibrated) | 3.9 | ||||
| -87.37 | kJ/mol-atom | 0.005 | 3.9 (model_calculated, calibrated) | 3.9 | ||||
| -69.6 | kJ/mol-atom | 0.05 | 3.9 (model_calculated, calibrated) | 3.9 | ||||
| -69.48 | kJ/mol-atom | 0.005 | 3.9 (model_calculated, calibrated) | 3.9 |
Sources
- Khadija Achgar, Saïd Kardellass, Hassan Azza, Najim Selhaoui, Thermodynamic modeling of the thulium–germanium binary system, J Therm Anal Calorim 131, 2699-2707 (2018). doi:10.1007/s10973-017-6820-4