Ni10Zr7: enthalpy of formation
12 accepted literature formation-enthalpy value(s) (experimental 3, model 5, DFT 4); experimental median -48 kJ/mol-atom (n = 3); Materials Project -43.278 kJ/mol-atom (mp-aaabkfpt); OQMD -43.841 kJ/mol-atom (oqmd-22936).
Systems: Ni–Zr
Literature values
| Value | Phase as printed | T (K) | Class | Method | System | Source | Location | Quote |
|---|---|---|---|---|---|---|---|---|
| -52.17 kJ/mol-atom ± 5 | Ni10Zr7 (Cmce) | 298.15 | experimental | experimental | Ni–Zr | [1] Jana 2020 cites Henaff 1984 doi | Table 6, p. 7, row 37 report | |
| -48 kJ/mol-atom ± 4 | Ni10Zr7 (Cmce) | 298.15 | experimental | experimental | Ni–Zr | [1] Jana 2020 cites Spit 1980 doi | Table 6, p. 7, row 36 report | |
| -46.7 kJ/mol-atom ± 3 | Ni10Zr7 (Cmce) | 298.15 | experimental | experimental | Ni–Zr | [1] Jana 2020 cites Zaitsev 2002 doi | Table 6, p. 7, row 38 report | |
| -54 kJ/mol-atom | Ni10Zr7 (Cmce) | model | empirical | Ni–Zr | [1] Jana 2020 cites Colinet 1985 doi | Table 6, p. 7, row 39 report | ||
| -52.097 kJ/mol-atom | Ni10Zr7 (Cmce) | model | empirical | Ni–Zr | [1] Jana 2020 cites Zhang 2007 doi | Table 6, p. 7, row 40 report | ||
| -48.418 kJ/mol-atom | Ni10Zr7 (Cmce) | model | Ni–Zr | [1] Jana 2020 | Table 6, p. 7, row 44 report | |||
| -48.389 kJ/mol-atom | Ni10Zr7 (Pbca) | model | Ni–Zr | [1] Jana 2020 | Table 6, p. 7, row 35 report | |||
| -46.817 kJ/mol-atom | Ni10Zr7 (Cmce) | model | Ni–Zr | [1] Jana 2020 | Table 6, p. 7, row 45 report | |||
| -48.218 kJ/mol-atom | Ni10Zr7 (Pbca) | DFT | DFT | Ni–Zr | [1] Jana 2020 cites Du 2014 doi | Table 6, p. 7, row 34 report | ||
| -48.216 kJ/mol-atom | Ni10Zr7 (Cmce) | DFT | DFT | Ni–Zr | [1] Jana 2020 cites Du 2014 doi | Table 6, p. 7, row 43 report | ||
| -44.383 kJ/mol-atom | Ni10Zr7 (Cmce) | DFT | DFT | Ni–Zr | [1] Jana 2020 cites Hennig 2005 doi | Table 6, p. 7, row 42 report | ||
| -43.804 kJ/mol-atom | Ni10Zr7 (Cmce) | DFT | DFT | Ni–Zr | [1] Jana 2020 cites Kirklin | Table 6, p. 7, row 41 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 |
|---|---|---|---|---|---|---|---|---|
| -52.17 | kJ/mol-atom | 5 | 5.000e-4 | 4.1 (experimental_unspecified, cleaned_below_threshold) | 5 | |||
| -48 | kJ/mol-atom | 4 | 5.000e-4 | 4.1 (experimental_unspecified, cleaned_below_threshold) | 4.1 | |||
| -46.7 | kJ/mol-atom | 3 | 5.000e-4 | 4.1 (experimental_unspecified, cleaned_below_threshold) | 4.1 | |||
| -54 | kJ/mol-atom | 5.000e-4 | 3.9 (model_calculated, calibrated) | 3.9 | ||||
| -52.097 | kJ/mol-atom | 5.000e-4 | 3.9 (model_calculated, calibrated) | 3.9 | ||||
| -48.418 | kJ/mol-atom | 5.000e-4 | 3.9 (model_calculated, calibrated) | 3.9 | ||||
| -48.389 | kJ/mol-atom | 5.000e-5 | 3.9 (model_calculated, calibrated) | 3.9 | ||||
| -46.817 | kJ/mol-atom | 5.000e-4 | 3.9 (model_calculated, calibrated) | 3.9 | ||||
| -48.218 | kJ/mol-atom | 5.000e-5 | 3.929 (dft, calibrated) | 3.929 | ||||
| -48.216 | kJ/mol-atom | 5.000e-4 | 3.929 (dft, calibrated) | 3.929 | ||||
| -44.383 | kJ/mol-atom | 5.000e-4 | 3.929 (dft, calibrated) | 3.929 | ||||
| -43.804 | kJ/mol-atom | 5.000e-4 | 3.929 (dft, calibrated) | 3.929 |
DFT formation energies
Lowest-energy entries at this composition. Materials Project and OQMD use different energy references and are never averaged. 1 eV/atom = 96.485 kJ/mol-atom.
| Source | Entry | kJ/mol-atom | eV/atom | Space group | E above hull (kJ/mol-atom) | E above hull (eV/atom) | Theoretical |
|---|---|---|---|---|---|---|---|
| Materials Project | mp-aaabkfpt | -43.278 | -0.448547 | Cmce | 0.7861 | 0.0081 | no |
| OQMD | oqmd-22936 | -43.841 | -0.454378 | Cmca | 0.5759 | 0.006 | no |
DFT sources: A. Jain et al., Commentary: The Materials Project: A materials genome approach to accelerating materials innovation, APL Materials 1 (2013) 011002. doi:10.1063/1.4812323 (CC BY 4.0); J. E. Saal et al., JOM 65 (2013) 1501-1509; S. Kirklin et al., npj Comput. Mater. 1 (2015) 15010. doi:10.1007/s11837-013-0755-4 (CC BY 4.0);
Sources
- Asmita Jana, Soumya Sridar, Suzana G. Fries, Thomas Hammerschmidt, K.C. Hari Kumar, Thermodynamic modelling of the Ni–Zr system, Intermetallics 116, 106640 (2020). doi:10.1016/j.intermet.2019.106640