K system
5 accepted literature values from 2 paper(s) (experimental 1, model 1, DFT 2, unspecified 1); 0 calculated phase diagram(s).
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| Evidence class | Values |
|---|---|
| experimental | 1 |
| model | 1 |
| DFT | 2 |
| unspecified | 1 |
| Property group | Values |
|---|---|
| formation | 1 |
| crystal structure | 4 |
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 |
|---|---|---|---|---|---|---|---|---|---|
| K | 0 kJ/mol-atom | 298.15 | DFT | [1] Zhang 2006 | Table 2, p. 3, row 22 report |
Other properties
Crystal structure (4)
| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---|---|---|---|---|---|---|
| Lattice a | 5.29 Å | (K) alloy: K 1 | unspecified | [2] Wang 2012 | Table 1, p. 3, row 12 report | ||
| Lattice a | 5.32 Å | 298.15 | (K) alloy: K 1 | model | [2] Wang 2012 cites King 1981 doi | Table 1, p. 3, row 11 report | |
| Lattice a printed: Lattice constant a | 5.271 Å | 298.15 | K alloy: K 1 | DFT | [1] Zhang 2006 | Table 2, p. 3, row 22 report | |
| Lattice a printed: Lattice constant a | 5.328 Å | 298.15 | K alloy: K 1 | experimental | [1] Zhang 2006 cites Liu 1986 doi | Table 2, p. 3, row 23 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