SiZnP2: enthalpy of formation
4 accepted literature formation-enthalpy value(s) (experimental 2, model 1, DFT 1).
Systems: P–Si–Zn
Literature values
| Value | Phase as printed | T (K) | Class | Method | System | Source | Location | Quote |
|---|---|---|---|---|---|---|---|---|
| -171.658 kJ/mol (basis unstated) | ZnSiP2 | 298.15 | experimental | P–Si–Zn | [1] Liu 2016 cites Buehler 1971 doi | Table 4, p. 6, row 12 report | ||
| -75.165 kJ/mol (basis unstated) | ZnSiP2 | 298.15 | experimental | P–Si–Zn | [1] Liu 2016 cites Korb 1976 doi | Table 4, p. 6, row 11 report | ||
| -153.168 kJ/mol (basis unstated) | ZnSiP2 | 298.15 | model | P–Si–Zn | [1] Liu 2016 | Table 4, p. 6, row 10 report | ||
| -108.618 kJ/mol (basis unstated) | ZnSiP2 | 298.15 | DFT | P–Si–Zn | [1] Liu 2016 cites Arab 2012 doi | Table 4, p. 6, row 13 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 |
|---|---|---|---|---|---|---|---|---|
| -171.658 | kJ/mol (basis unstated) | 5.000e-4 | 14 (unknown, calibrated) | 14 | ||||
| -75.165 | kJ/mol (basis unstated) | 5.000e-5 | 14 (unknown, calibrated) | 14 | ||||
| -153.168 | kJ/mol (basis unstated) | 5.000e-4 | 15.6 (model_calculated, calibrated) | 15.6 | ||||
| -108.618 | kJ/mol (basis unstated) | 5.000e-4 | 39.86 (dft, calibrated) | 39.86 |
Sources
- Ya Liu, Bin Zhou, Wei Lv, Changjun Wu, Xuping Su, Jianhua Wang, Experimental investigation and thermodynamic assessment of the Zn–Si–P system, Surface and Coatings Technology 306, 370-377 (2016). doi:10.1016/j.surfcoat.2016.01.016