Na system
9 accepted literature values from 5 paper(s) (experimental 2, model 2, DFT 3, unspecified 2); 0 calculated phase diagram(s).
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| Evidence class | Values |
|---|---|
| experimental | 2 |
| model | 2 |
| DFT | 3 |
| unspecified | 2 |
| Property group | Values |
|---|---|
| formation | 1 |
| crystal structure | 8 |
Formation enthalpies
Literature values in kJ/mol-atom where the per-atom basis is known. DFT columns: the lowest-energy entry at the same composition (Materials Project 2026.04.13, OQMD v1.8; different energy references, never averaged), from dft_parity.json.
| Phase | Compound | Value | T (K) | Class | MP DFT (kJ/mol-atom) | OQMD DFT (kJ/mol-atom) | Source | Location | Quote |
|---|---|---|---|---|---|---|---|---|---|
| Na | 0 kJ/mol-atom | 293 | DFT | [1] Zhang 2006 | Table 2, p. 3, row 24 report |
Other properties
Crystal structure (8)
| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---|---|---|---|---|---|---|
| Lattice a | 4.23 Å | (Na) alloy: Na 1 | unspecified | [2] Wang 2012 | Table 1, p. 3, row 10 report | ||
| Lattice a | 4.203 Å | Na alloy: Na 1 | DFT | [3] Hao 2012 | Table 1, p. 5, row 2 report | ||
| Lattice a printed: Lattice constant a | 4.282 Å ± 5.000e-4 | 293 | Na alloy: Na 1 | experimental | [1] Zhang 2006 cites Aruja 1939 | Table 2, p. 3, row 25 report | |
| Lattice a printed: Lattice constant a | 4.197 Å | 293 | Na alloy: Na 1 | DFT | [1] Zhang 2006 | Table 2, p. 3, row 24 report | |
| Lattice a | 4.28865 Å ± 2.600e-4 | 295 | β-Na (bcc) | unspecified | [4] Smith 2017 cites Wriedt 1987 doi | Table 1, p. 3, row 1 report | |
| Lattice a | 4.21 Å | 298.15 | (Na) alloy: Na 1 | model | [2] Wang 2012 cites King 1981 doi | Table 1, p. 3, row 9 report | |
| Lattice a | 4.235 Å | 298.15 | Na alloy: Na 1 | experimental | [3] Hao 2012 cites Barrett 1956 | Table 1, p. 5, row 1 report | |
| Lattice a | 4.2096 Å | 370.1 (<) | (Na) alloy: Na 1 | model | [5] Chen 2012 cites King 1981 doi | Table 2, p. 2, row 3 report |
Sources
Reporting papers the values were read from (a value cited from another work names that work in its row).
- Shengjun Zhang, Carl Brubaker, Chao Jiang, Mei Yang, Yu Zhong, Qingyou Han et al., A combined first-principles calculation and thermodynamic modeling of the F–K–Na system, Materials Science and Engineering: A 418, 161-171 (2006). doi:10.1016/j.msea.2005.11.037
- Yaru Wang, Peisheng Wang, Dongdong Zhao, Biao Hu, Yong Du, Honghui Xu et al., Thermodynamic description of the Ge–Na and Ge–K systems using the CALPHAD approach supported by first-principles calculations, Calphad 37, 72-76 (2012). doi:10.1016/j.calphad.2012.01.004
- D. Hao, M. Bu, Y. Wang, Y. Tang, Q. Gao, M. Wang et al., Thermodynamic modeling of the Na-X (X = Si, Ag, Cu, Cr) systems, J min metall B Metall 48, 273-282 (2012). doi:10.2298/jmmb120113024h
- A.L. Smith, C. Guéneau, J.-L. Flèche, S. Chatain, O. Beneš, R.J.M. Konings, Thermodynamic assessment of the Na-O and Na-U-O systems: Margin to the safe operation of SFRs, The Journal of Chemical Thermodynamics 114, 93-115 (2017). doi:10.1016/j.jct.2017.04.003
- Chong Chen, Man Wang, Yong Du, Qiannan Gao, Biao Hu, Shuhong Liu, Thermodynamic modeling of the Sr–X (X=H, Li, Na, Sc) systems, Calphad 38, 17-22 (2012). doi:10.1016/j.calphad.2012.03.001