Ir system
18 accepted literature values from 6 paper(s) (experimental 6, model 8, unspecified 4); 0 calculated phase diagram(s).
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| Evidence class | Values |
|---|---|
| experimental | 6 |
| model | 8 |
| unspecified | 4 |
| Property group | Values |
|---|---|
| formation | 3 |
| crystal structure | 15 |
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 |
|---|---|---|---|---|---|---|---|---|---|
| A1-Al | 0 kJ/mol-atom | 0 | model | [1] Abe 2008 | Table 2, p. 3, row 21 report | ||||
| A1-Ir | 0 kJ/mol-atom | 0 | model | [1] Abe 2008 | Table 2, p. 3, row 21 report | ||||
| A2-Ir | 8.8 kJ/mol-atom | 0 | model | [1] Abe 2008 | Table 2, p. 3, row 24 report |
Other properties
Crystal structure (15)
| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---|---|---|---|---|---|---|
| Lattice a printed: a | 3.888 Å | 0 | A1-Ir alloy: Ir 1 | model | [1] Abe 2008 | Table 2, p. 3, row 21 report | |
| Lattice a printed: a | 3.839 Å | A1-Ir alloy: Ir 1 | experimental | [1] Abe 2008 cites Schroder 1972 | Table 2, p. 3, row 22 report | ||
| Lattice a printed: a | 3.119 Å | 0 | A2-Ir alloy: Ir 1 | model | [1] Abe 2008 | Table 2, p. 3, row 24 report | |
| Lattice a printed: a | 3.839 Å | Al–Ir alloy: Ir 1 | experimental | [1] Abe 2008 cites Schroder 1972 | Table 2, p. 3, row 22 report | ||
| Lattice a | 3.885 Å | Ir | model | [2] Huang 2020 | Table 1, p. 3, row 14 report | ||
| Lattice a | 3.8392 Å | 298.15 | Ir Ir: Ir 1 | unspecified | [3] Anderson 1992 | Table 2, p. 1, row 18 report | |
| Lattice a | 3.839 Å | 298.15 | Ir | experimental | [2] Huang 2020 cites Michalik 1963 | Table 1, p. 3, row 13 report | |
| Lattice a | 3.8391 Å | 298.15 | Ir(s) Ir(s): Ir 1 | unspecified | [4] Karakaya 1986 | Table 1, p. 2, row 2 report | |
| Lattice a | 3.8391 Å | 298.15 | Ir(s) Ir(s): Ir 1 | unspecified | [5] Karakaya 1986 cites ref. 1 | Table 1, p. 1, row 2 report | |
| Lattice a | 3.839 Å | 303.15 | (Ir) alloy: Ir 1 | experimental | [6] Chakrabarti 1987 cites Singh 1969 | Table 3, p. 3, row 6 report | |
| Lattice b | 3.885 Å | Ir | model | [2] Huang 2020 | Table 1, p. 3, row 14 report | ||
| Lattice b | 3.839 Å | 298.15 | Ir | experimental | [2] Huang 2020 cites Michalik 1963 | Table 1, p. 3, row 13 report | |
| Lattice c | 3.885 Å | Ir | model | [2] Huang 2020 | Table 1, p. 3, row 14 report | ||
| Lattice c | 3.839 Å | 298.15 | Ir | experimental | [2] Huang 2020 cites Michalik 1963 | Table 1, p. 3, row 13 report | |
| lattice unspecified axis | 3.8391 Å | 298.15 | Ir(s) Ir(s): Ir 1 | unspecified | [5] Karakaya 1986 cites ref. 1 | Table 1, p. 1, row 2 report |
Sources
Reporting papers the values were read from (a value cited from another work names that work in its row).
- T. Abe, C. Kocer, M. Ode, H. Murakami, Y. Yamabe-Mitarai, K. Hashimoto et al., Thermodynamic re-assessment of the Al–Ir system, Calphad 32, 686-692 (2008). doi:10.1016/j.calphad.2008.09.014
- Y.-Y. Huang, B. Wu, F. Li, L.-L. Chen, Z.-X. Deng, K. Chang, First-principles and CALPHAD-type study of the Ir-Mo and Ir-W systems, J min metall B Metall 56, 109-118 (2020). doi:10.2298/jmmb190211001h
- T. J. Anderson, I. Ansara, The Ga-Sn (gallium-tin) system, JPE 13, 181-189 (1992). doi:10.1007/bf02667485
- I. Karakaya, W. T. Thompson, The Ag−Ir (Silver-Iridium) system, Bulletin of Alloy Phase Diagrams 7, 359-360 (1986). doi:10.1007/bf02873021
- I. Karakaya, W. T. Thompson, The Ag−Os (Silver-Osmium) system, Bulletin of Alloy Phase Diagrams 7, 360-362 (1986). doi:10.1007/bf02873022
- D. J. Chakrabarti, D. E. Laughlin, The Cu−Ir (Copper-Iridium) system, JPE 8, 132-136 (1987). doi:10.1007/bf02873198