# Al–Ir system

> Al–Ir system: 116 accepted literature values (crystal structure 59, formation 25, invariant reaction 17, phase equilibrium 15) and 4 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote.

HTML: https://data.orchid-project.org/systems/AL-IR.html · Markdown: https://data.orchid-project.org/systems/AL-IR.md

116 accepted literature values from 3 paper(s) (experimental 43, model 37, DFT 32, unspecified 4); 4 calculated phase diagram(s). 2 further extracted value(s) not accepted by the reader-agreement checks are only in the JSON/CSV.

Data: [JSON](https://data.orchid-project.org/literature/systems/AL-IR.json) · [CSV](https://data.orchid-project.org/systems/AL-IR.csv) · [interactive explorer](https://orchid-project.org/data-explorer/#AL-IR) · [interactive phase diagram](https://orchid-project.org/phase-diagrams/#AL-IR/AlIr-06Jia.json) · [phases (13)](https://data.orchid-project.org/phases/pages/AL-IR.html) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/AL-IR.html) · [Markdown](https://data.orchid-project.org/systems/AL-IR.md)

Table: Accepted values by evidence class

| Evidence class | Values |
|---|---:|
| experimental | 43 |
| model | 37 |
| DFT | 32 |
| unspecified | 4 |

Table: Accepted values by property group

| Property group | Values |
|---|---:|
| invariant reaction | 17 |
| phase equilibrium | 15 |
| formation | 25 |
| crystal structure | 59 |

## Calculated phase diagrams

Binary phase diagrams calculated with pycalphad 0.11.2 from the SGTE binary collection (Hallstedt 2025, CC BY 4.0). Evidence class: model.

Table: Assessments with a calculated phase diagram

| TDB file | Assessment | SHA-256 | Links |
|---|---|---|---|
| AlIr-06Jia.tdb | C. Jiang, B. Gleeson, Acta Mater., 54, 4101-10(2006). [doi:10.1016/j.actamat.2006.03.058](https://doi.org/10.1016/j.actamat.2006.03.058) | `42aa80aa2bf0ad5b25f0fb3e2777a4145e4b32d8b3d8d749d3ca2410832f28f2` | [viewer](https://orchid-project.org/phase-diagrams/#AL-IR/AlIr-06Jia.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/AlIr-06Jia.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/AlIr-06Jia.json) |
| AlIr-07Abe.tdb | T. Abe, M. Ode, H. Murakami, C.S. Oh, C. Kocer, Y. Yamabe-Mitarai, H. Onodera, Mater. Sci. Forum, 539-543, 2389-94(2007). | `28d8af6daff1f08ab2b6bc3fbe9f298ad834c1573f9b330f232b02358373e5a4` | [viewer](https://orchid-project.org/phase-diagrams/#AL-IR/AlIr-07Abe.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/AlIr-07Abe.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/AlIr-07Abe.json) |
| AlIr-08Abe.tdb | T. Abe, C. Kocer, M. Ode, H. Murakami, Y. Yamabe-Mitarai, K. Hashimoto, H. Onodera, Calphad, 32, 686-928(2008). [doi:10.1016/j.calphad.2008.09.014](https://doi.org/10.1016/j.calphad.2008.09.014) | `ccf8c59d9ed25c09cd5a6869aaee7fa44cbd244587e83e3459535d9f210762f9` | [viewer](https://orchid-project.org/phase-diagrams/#AL-IR/AlIr-08Abe.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/AlIr-08Abe.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/AlIr-08Abe.json) |
| AlIr-08Zha.tdb | C. Zhang, J. Zhu, Y. Yang, F. Zhang, Y.A. Chang, Scripta Mater., 59, 403-6(2008). [doi:10.1016/j.scriptamat.2008.04.012](https://doi.org/10.1016/j.scriptamat.2008.04.012) | `c64bc19a38e734398eae114eabbb338a04cefa1b1e827347f32504c6afdbfaa7` | [viewer](https://orchid-project.org/phase-diagrams/#AL-IR/AlIr-08Zha.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/AlIr-08Zha.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/AlIr-08Zha.json) |

Table: Calculated three-phase invariants (model, mole fraction of the second component)

| TDB file | T (K) | Phases at the invariant |
|---|---:|---|
| AlIr-06Jia.tdb | 2165.07 | ALIR_B2 (x(Ir) 0.5) + LIQUID (x(Ir) 0.68065) + FCC_A1 (x(Ir) 0.84692) |
| AlIr-06Jia.tdb | 2165.07 | ALIR_B2 (x(Ir) 0.5) + LIQUID (x(Ir) 0.68066) + FCC_A1 (x(Ir) 0.84693) |
| AlIr-06Jia.tdb | 1932.28 | AL5IR2 (x(Ir) 0.27) + LIQUID (x(Ir) 0.29541) + ALIR_B2 (x(Ir) 0.5) |
| AlIr-06Jia.tdb | 1932.28 | AL5IR2 (x(Ir) 0.27) + LIQUID (x(Ir) 0.29564) + ALIR_B2 (x(Ir) 0.5) |
| AlIr-06Jia.tdb | 1713.78 | LIQUID (x(Ir) 0.15513) + AL3IR_D018 (x(Ir) 0.25) + AL5IR2 (x(Ir) 0.27) |
| AlIr-06Jia.tdb | 1713.78 | LIQUID (x(Ir) 0.15522) + AL3IR_D018 (x(Ir) 0.25) + AL5IR2 (x(Ir) 0.27) |
| AlIr-06Jia.tdb | 1287.53 | LIQUID (x(Ir) 0.0703) + AL13IR4 (x(Ir) 0.23529) + AL3IR_D018 (x(Ir) 0.25) |
| AlIr-06Jia.tdb | 1287.53 | LIQUID (x(Ir) 0.07026) + AL13IR4 (x(Ir) 0.23529) + AL3IR_D018 (x(Ir) 0.25) |
| AlIr-06Jia.tdb | 1287.53 | LIQUID (x(Ir) 0.07033) + AL13IR4 (x(Ir) 0.23529) + AL3IR_D018 (x(Ir) 0.25) |
| AlIr-06Jia.tdb | 1168.76 | LIQUID (x(Ir) 0.0519) + AL45IR13 (x(Ir) 0.22414) + AL13IR4 (x(Ir) 0.23529) |
| AlIr-06Jia.tdb | 1168.76 | LIQUID (x(Ir) 0.05187) + AL45IR13 (x(Ir) 0.22414) + AL13IR4 (x(Ir) 0.23529) |
| AlIr-06Jia.tdb | 1168.76 | LIQUID (x(Ir) 0.05193) + AL45IR13 (x(Ir) 0.22414) + AL13IR4 (x(Ir) 0.23529) |
| AlIr-06Jia.tdb | 1149.54 | LIQUID (x(Ir) 0.04893) + AL9IR2 (x(Ir) 0.18182) + AL45IR13 (x(Ir) 0.22414) |
| AlIr-06Jia.tdb | 1149.54 | LIQUID (x(Ir) 0.04897) + AL9IR2 (x(Ir) 0.18182) + AL45IR13 (x(Ir) 0.22414) |
| AlIr-06Jia.tdb | 1149.54 | LIQUID (x(Ir) 0.0489) + AL9IR2 (x(Ir) 0.18182) + AL45IR13 (x(Ir) 0.22414) |
| AlIr-06Jia.tdb | 920.91 | FCC_A1 (x(Ir) 0.00145) + LIQUID (x(Ir) 0.0132) + AL9IR2 (x(Ir) 0.18182) |
| AlIr-06Jia.tdb | 920.91 | FCC_A1 (x(Ir) 0.00143) + LIQUID (x(Ir) 0.01314) + AL9IR2 (x(Ir) 0.18182) |
| AlIr-07Abe.tdb | 2315.64 | ALIR_B2 (x(Ir) 0.51628) + LIQUID (x(Ir) 0.68889) + FCC_A1 (x(Ir) 0.82153) |
| AlIr-07Abe.tdb | 1887.12 | LIQUID (x(Ir) 0.19738) + AL5IR2 (x(Ir) 0.27027) + ALIR_B2 (x(Ir) 0.4753) |
| AlIr-07Abe.tdb | 1746.92 | LIQUID (x(Ir) 0.13424) + AL3IR_D018 (x(Ir) 0.25) + AL5IR2 (x(Ir) 0.27027) |
| AlIr-07Abe.tdb | 1746.92 | LIQUID (x(Ir) 0.13419) + AL3IR_D018 (x(Ir) 0.25) + AL5IR2 (x(Ir) 0.27027) |
| AlIr-07Abe.tdb | 1746.92 | LIQUID (x(Ir) 0.13425) + AL3IR_D018 (x(Ir) 0.25) + AL5IR2 (x(Ir) 0.27027) |
| AlIr-07Abe.tdb | 1282.94 | LIQUID (x(Ir) 0.03921) + AL13IR4 (x(Ir) 0.23529) + AL3IR_D018 (x(Ir) 0.25) |
| AlIr-07Abe.tdb | 1282.94 | LIQUID (x(Ir) 0.03921) + AL13IR4 (x(Ir) 0.23529) + AL3IR_D018 (x(Ir) 0.25) |
| AlIr-07Abe.tdb | 1282.94 | LIQUID (x(Ir) 0.03926) + AL13IR4 (x(Ir) 0.23529) + AL3IR_D018 (x(Ir) 0.25) |
| AlIr-07Abe.tdb | 1147.59 | LIQUID (x(Ir) 0.02323) + AL9IR2 (x(Ir) 0.18182) + AL13IR4 (x(Ir) 0.23529) |
| AlIr-07Abe.tdb | 1147.59 | LIQUID (x(Ir) 0.02327) + AL9IR2 (x(Ir) 0.18182) + AL13IR4 (x(Ir) 0.23529) |
| AlIr-07Abe.tdb | 1147.59 | LIQUID (x(Ir) 0.0232) + AL9IR2 (x(Ir) 0.18182) + AL13IR4 (x(Ir) 0.23529) |
| AlIr-07Abe.tdb | 930.3 | FCC_A1 (x(Ir) 1.200e-4) + LIQUID (x(Ir) 0.00428) + AL9IR2 (x(Ir) 0.18182) |
| AlIr-07Abe.tdb | 930.3 | FCC_A1 (x(Ir) 1.200e-4) + LIQUID (x(Ir) 0.00418) + AL9IR2 (x(Ir) 0.18182) |
| AlIr-08Abe.tdb | 2186.34 | B2_BCC (x(Ir) 0.52718) + LIQUID (x(Ir) 0.69064) + FCC_4SL (x(Ir) 0.85996) |
| AlIr-08Abe.tdb | 1908.94 | AL5IR2 (x(Ir) 0.27027) + LIQUID (x(Ir) 0.30068) + B2_BCC (x(Ir) 0.49853) |
| AlIr-08Abe.tdb | 1743.69 | LIQUID (x(Ir) 0.15996) + AL3IR_D018 (x(Ir) 0.25) + AL5IR2 (x(Ir) 0.27027) |
| AlIr-08Abe.tdb | 1743.69 | LIQUID (x(Ir) 0.16009) + AL3IR_D018 (x(Ir) 0.25) + AL5IR2 (x(Ir) 0.27027) |
| AlIr-08Abe.tdb | 1707.94 | LIQUID (x(Ir) 0.14611) + AL28IR9 (x(Ir) 0.24324) + AL3IR_D018 (x(Ir) 0.25) |
| AlIr-08Abe.tdb | 1707.94 | LIQUID (x(Ir) 0.14632) + AL28IR9 (x(Ir) 0.24324) + AL3IR_D018 (x(Ir) 0.25) |
| AlIr-08Abe.tdb | 1280.83 | LIQUID (x(Ir) 0.01875) + AL13IR4 (x(Ir) 0.23529) + AL28IR9 (x(Ir) 0.24324) |
| AlIr-08Abe.tdb | 1280.83 | LIQUID (x(Ir) 0.01879) + AL13IR4 (x(Ir) 0.23529) + AL28IR9 (x(Ir) 0.24324) |
| AlIr-08Abe.tdb | 1280.83 | LIQUID (x(Ir) 0.0187) + AL13IR4 (x(Ir) 0.23529) + AL28IR9 (x(Ir) 0.24324) |
| AlIr-08Abe.tdb | 1221.61 | LIQUID (x(Ir) 0.00995) + AL45IR13 (x(Ir) 0.22414) + AL13IR4 (x(Ir) 0.23529) |
| AlIr-08Abe.tdb | 1221.61 | LIQUID (x(Ir) 0.00993) + AL45IR13 (x(Ir) 0.22414) + AL13IR4 (x(Ir) 0.23529) |
| AlIr-08Abe.tdb | 1221.61 | LIQUID (x(Ir) 0.00996) + AL45IR13 (x(Ir) 0.22414) + AL13IR4 (x(Ir) 0.23529) |
| AlIr-08Abe.tdb | 1200.87 | LIQUID (x(Ir) 0.00775) + AL9IR2 (x(Ir) 0.18182) + AL45IR13 (x(Ir) 0.22414) |
| AlIr-08Abe.tdb | 1200.87 | LIQUID (x(Ir) 0.00777) + AL9IR2 (x(Ir) 0.18182) + AL45IR13 (x(Ir) 0.22414) |
| AlIr-08Abe.tdb | 1200.87 | LIQUID (x(Ir) 0.00773) + AL9IR2 (x(Ir) 0.18182) + AL45IR13 (x(Ir) 0.22414) |
| AlIr-08Abe.tdb | 933.44 | FCC_4SL (x(Ir) 1.000e-5) + LIQUID (x(Ir) 6.000e-5) + AL9IR2 (x(Ir) 0.18182) |
| AlIr-08Abe.tdb | 933.44 | FCC_4SL (x(Ir) 1.000e-5) + LIQUID (x(Ir) 6.000e-5) + AL9IR2 (x(Ir) 0.18182) |
| AlIr-08Zha.tdb | 2196.15 | ALIR_B2 (x(Ir) 0.52966) + LIQUID (x(Ir) 0.66337) + FCC_4SL (x(Ir) 0.81613) |
| AlIr-08Zha.tdb | 1927.22 | AL5IR2 (x(Ir) 0.27027) + LIQUID (x(Ir) 0.3075) + ALIR_B2 (x(Ir) 0.49716) |
| AlIr-08Zha.tdb | 1731.76 | LIQUID (x(Ir) 0.16277) + AL3IR_D018 (x(Ir) 0.25) + AL5IR2 (x(Ir) 0.27027) |
| AlIr-08Zha.tdb | 1731.76 | LIQUID (x(Ir) 0.1628) + AL3IR_D018 (x(Ir) 0.25) + AL5IR2 (x(Ir) 0.27027) |
| AlIr-08Zha.tdb | 1259.77 | LIQUID (x(Ir) 0.07064) + AL13IR4 (x(Ir) 0.23529) + AL3IR_D018 (x(Ir) 0.25) |
| AlIr-08Zha.tdb | 1259.77 | LIQUID (x(Ir) 0.07063) + AL13IR4 (x(Ir) 0.23529) + AL3IR_D018 (x(Ir) 0.25) |
| AlIr-08Zha.tdb | 1259.77 | LIQUID (x(Ir) 0.07066) + AL13IR4 (x(Ir) 0.23529) + AL3IR_D018 (x(Ir) 0.25) |
| AlIr-08Zha.tdb | 1187.71 | LIQUID (x(Ir) 0.05912) + AL45IR13 (x(Ir) 0.22414) + AL13IR4 (x(Ir) 0.23529) |
| AlIr-08Zha.tdb | 1187.71 | LIQUID (x(Ir) 0.05911) + AL45IR13 (x(Ir) 0.22414) + AL13IR4 (x(Ir) 0.23529) |
| AlIr-08Zha.tdb | 1187.71 | LIQUID (x(Ir) 0.05917) + AL45IR13 (x(Ir) 0.22414) + AL13IR4 (x(Ir) 0.23529) |
| AlIr-08Zha.tdb | 1161.82 | LIQUID (x(Ir) 0.05484) + AL9IR2 (x(Ir) 0.18182) + AL45IR13 (x(Ir) 0.22414) |
| AlIr-08Zha.tdb | 1161.82 | LIQUID (x(Ir) 0.05486) + AL9IR2 (x(Ir) 0.18182) + AL45IR13 (x(Ir) 0.22414) |
| AlIr-08Zha.tdb | 1161.82 | LIQUID (x(Ir) 0.05479) + AL9IR2 (x(Ir) 0.18182) + AL45IR13 (x(Ir) 0.22414) |
| AlIr-08Zha.tdb | 920.49 | FCC_A1 (x(Ir) 2.000e-5) + LIQUID (x(Ir) 0.01362) + AL9IR2 (x(Ir) 0.18182) |
| AlIr-08Zha.tdb | 920.49 | FCC_4SL (x(Ir) 2.000e-5) + LIQUID (x(Ir) 0.01357) + AL9IR2 (x(Ir) 0.18182) |
| AlIr-08Zha.tdb | 920.49 | FCC_4SL (x(Ir) 2.000e-5) + LIQUID (x(Ir) 0.01357) + AL9IR2 (x(Ir) 0.18182) |

Convex hulls: [Materials Project DFT hull](https://data.orchid-project.org/hulls/dft-mp/AL/AL-IR.json) · [OQMD DFT hull](https://data.orchid-project.org/hulls/dft-oqmd/AL/AL-IR.json) · [CALPHAD hull AlIr-06Jia](https://data.orchid-project.org/hulls/calphad-sgte/AL/AL-IR--AlIr-06Jia.json) · [CALPHAD hull AlIr-07Abe](https://data.orchid-project.org/hulls/calphad-sgte/AL/AL-IR--AlIr-07Abe.json) · [CALPHAD hull AlIr-08Zha](https://data.orchid-project.org/hulls/calphad-sgte/AL/AL-IR--AlIr-08Zha.json)

## Invariant reactions (literature)

Table: Invariant reactions reported in the literature for the Al–Ir system (17)

| T (K) | Reaction / phases | Compositions (mole fraction) | Class | Source | Location | Quote |
|---:|---|---|---|---|---|---|
| 2404 | congruent melting: Liquid = AlIr | Liquid: Al 0.5, Ir 0.5; AlIr: Al 0.5, Ir 0.5 | model | [1] JIANG 2006 | Table 6, p. 8, row 5; `ORC-U5TSDHIBWP` |  |
| 2393 | congruent melting: Liquid = AlIr | Liquid: Al 0.5, Ir 0.5; AlIr: Al 0.5, Ir 0.5 | experimental | [1] JIANG 2006; _cites Axler 1989_ | Table 6, p. 8, row 6; `ORC-CMXPVZJ5ES` |  |
| 2331 | eutectic: Liquid = AlIr + fcc | Liquid: Ir 0.7; AlIr: Al 0.5, Ir 0.5; fcc: Ir 0.82 | experimental | [1] JIANG 2006; _cites Axler 1989_ | Table 6, p. 8, row 3; `ORC-XJL7RMAZQ3` |  |
| 2173 | eutectic: Liquid = AlIr + fcc | AlIr: Al 0.5, Ir 0.5 | experimental | [1] JIANG 2006; _cites Yamabe-Mitarai 2003_ | Table 6, p. 8, row 2; `ORC-SN6AKRGVKT` |  |
| 2165 | eutectic: Liquid = AlIr + fcc | Liquid: Ir 0.681; AlIr: Al 0.5, Ir 0.5; fcc: Ir 0.847 | model | [1] JIANG 2006 | Table 6, p. 8, row 1; `ORC-E7Y27DIFCS` |  |
| 1932 | eutectic: Liquid = AlIr + Al2.7Ir | Liquid: Ir 0.295; AlIr: Al 0.5, Ir 0.5; Al2.7Ir: Al 0.73, Ir 0.27 | model | [1] JIANG 2006 | Table 6, p. 8, row 7; `ORC-3GV7GZDPN3` |  |
| 1873 | eutectic: Liquid = AlIr + Al2.7Ir | AlIr: Al 0.5, Ir 0.5; Al2.7Ir: Al 0.73, Ir 0.27 | experimental | [1] JIANG 2006; _cites Lee 1989_ | Table 6, p. 8, row 8; `ORC-IMXEAXZQHM` |  |
| 1723 | peritectic: Liquid + Al2.7Ir = Al3Ir | Al2.7Ir: Al 0.73, Ir 0.27; Al3Ir: Al 0.75, Ir 0.25 | experimental | [1] JIANG 2006; _cites Axler 1989_ | Table 6, p. 8, row 11; `ORC-2OZR4FNUN5` |  |
| 1723 | peritectic: Liquid + Al2.7Ir = Al3Ir | Liquid: Ir 0.158; Al2.7Ir: Al 0.73, Ir 0.27; Al3Ir: Al 0.75, Ir 0.25 | model | [1] JIANG 2006 | Table 6, p. 8, row 10; `ORC-FCEYUU6FYS` |  |
| 1288 | peritectic: Liquid + Al3Ir = Al13Ir4 | Al3Ir: Al 0.75, Ir 0.25; Al13Ir4: Al 0.764706, Ir 0.235294 | experimental | [1] JIANG 2006; _cites Axler 1989_ | Table 6, p. 8, row 13; `ORC-CLD4ZCDX4N` |  |
| 1288 | peritectic: Liquid + Al3Ir = Al13Ir4 | Liquid: Ir 0.07; Al3Ir: Al 0.75, Ir 0.25; Al13Ir4: Al 0.764706, Ir 0.235294 | model | [1] JIANG 2006 | Table 6, p. 8, row 12; `ORC-RGFRXSGBDO` |  |
| 1168 | peritectic: Liquid + Al13Ir4 = Al45Ir13 | Al13Ir4: Al 0.764706, Ir 0.235294; Al45Ir13: Al 0.775862, Ir 0.224138 | experimental | [1] JIANG 2006; _cites Bostrom 2005_ | Table 6, p. 8, row 15; `ORC-V2TFOGBBDI` |  |
| 1168 | peritectic: Liquid + Al13Ir4 = Al45Ir13 | Liquid: Ir 0.052; Al13Ir4: Al 0.764706, Ir 0.235294; Al45Ir13: Al 0.775862, Ir 0.224138 | model | [1] JIANG 2006 | Table 6, p. 8, row 14; `ORC-WKUIJA6AZ2` |  |
| 1150 | peritectic: Liquid + Al45Ir13 = Al9Ir2 | Liquid: Ir 0.049; Al45Ir13: Al 0.775862, Ir 0.224138; Al9Ir2: Al 0.818182, Ir 0.181818 | model | [1] JIANG 2006 | Table 6, p. 8, row 16; `ORC-EFDY2AQI5O` |  |
| 1149 | peritectic: Liquid + Al45Ir13 = Al9Ir2 | Al45Ir13: Al 0.775862, Ir 0.224138; Al9Ir2: Al 0.818182, Ir 0.181818 | experimental | [1] JIANG 2006; _cites Bostrom 2005_ | Table 6, p. 8, row 17; `ORC-BLMYIB3V6X` |  |
| 923 | eutectic: Liquid = fcc + Al9Ir2 | fcc: Ir 0.001; Al9Ir2: Al 0.818182, Ir 0.181818 | experimental | [1] JIANG 2006; _cites Axler 1989_ | Table 6, p. 8, row 19; `ORC-JDCGQV3YWW` |  |
| 921 | eutectic: Liquid = fcc + Al9Ir2 | Liquid: Ir 0.013; fcc: Ir 0.001; Al9Ir2: Al 0.818182, Ir 0.181818 | model | [1] JIANG 2006 | Table 6, p. 8, row 18; `ORC-UR3TYEVFPD` |  |

## 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](https://data.orchid-project.org/literature/dft_parity.json).

Table: Enthalpies of formation, Al–Ir system (25)

| Phase | Compound | Value | T (K) | Class | MP DFT (kJ/mol-atom) | OQMD DFT (kJ/mol-atom) | Source | Location | Quote |
|---|---|---:|---:|---|---:|---:|---|---|---|
| Al13Ir4 | [Al13Ir4](https://data.orchid-project.org/compounds/Al13Ir4.html) | -64.4 kJ/mol-atom |  | model |  | -57.448 (oqmd-1782493) | [2] Abe 2008 | Table 2, p. 3, row 8; `ORC-2LSSATLPN7.5018bb` |  |
| Al13Ir4 | [Al13Ir4](https://data.orchid-project.org/compounds/Al13Ir4.html) | -64.1 kJ/mol-atom | 0 | model |  | -57.448 (oqmd-1782493) | [1] JIANG 2006 | Table 4, p. 4, row 2; `ORC-VVD6KBZNAZ.0affb3` |  |
| Al13Ir4 |  | -63.5 kJ/mol-atom |  | DFT |  |  | [2] Abe 2008; _cites Jiang 2006_ | Table 2, p. 3, row 9; `ORC-3T45LAF2NA.0784dc` |  |
| Al13Ir4 | [Al13Ir4](https://data.orchid-project.org/compounds/Al13Ir4.html) | -63.5 kJ/mol-atom | 0 | model |  | -57.448 (oqmd-1782493) | [1] JIANG 2006 | Table 4, p. 4, row 2; `ORC-VVD6KBZNAZ.004cf3` |  |
| Al13Ir4 | [Al13Ir4](https://data.orchid-project.org/compounds/Al13Ir4.html) | -62.8 kJ/mol-atom | 0 | model |  | -57.448 (oqmd-1782493) | [1] JIANG 2006 | Table 4, p. 4, row 2; `ORC-VVD6KBZNAZ.cdc32e` |  |
| Al2.7Ir |  | -69.7 kJ/mol-atom | 0 | model |  |  | [1] JIANG 2006 | Table 4, p. 4, row 3; `ORC-EP63T5JKQK.48f132` |  |
| Al2.7Ir |  | -68.8 kJ/mol-atom | 0 | model |  |  | [1] JIANG 2006 | Table 4, p. 4, row 6; `ORC-4F7X5PYCOO.64e7cc` |  |
| Al2.7Ir |  | -68.3 kJ/mol-atom ± 0.5 | 0 | model |  |  | [1] JIANG 2006 | Table 4, p. 4, row 6; `ORC-4F7X5PYCOO.8552a1` |  |
| Al2.7Ir |  | -68.3 kJ/mol-atom |  | DFT |  |  | [2] Abe 2008; _cites Jiang 2006_ | Table 2, p. 3, row 16; `ORC-IFIJC3VV2P.5646ae` |  |
| Al2.7Ir |  | -67.8 kJ/mol-atom | 0 | model |  |  | [1] JIANG 2006 | Table 4, p. 4, row 6; `ORC-4F7X5PYCOO.5769a4` |  |
| Al3Ir |  | -65.7 kJ/mol-atom | 0 | DFT |  |  | [1] JIANG 2006 | Table 1, p. 2, row 2; `ORC-CVNXZ24MQM.466f56` |  |
| Al45Ir13 |  | -63 kJ/mol-atom | 0 | model |  |  | [1] JIANG 2006 | Table 4, p. 4, row 1; `ORC-VUTX73AUZN.c07346` |  |
| Al45Ir13 |  | -61.8 kJ/mol-atom | 0 | model |  |  | [1] JIANG 2006 | Table 4, p. 4, row 4; `ORC-QBEOR26ZXW.1288bd` |  |
| Al45Ir13 |  | -61.4 kJ/mol-atom ± 0.3 | 0 | model |  |  | [1] JIANG 2006 | Table 4, p. 4, row 4; `ORC-QBEOR26ZXW.617fb7` |  |
| Al45Ir13 |  | -61.1 kJ/mol-atom | 0 | model |  |  | [1] JIANG 2006 | Table 4, p. 4, row 4; `ORC-QBEOR26ZXW.2a082a` |  |
| Al45Ir13 |  | -60.6 kJ/mol-atom | 0 | model |  |  | [1] JIANG 2006 | Table 4, p. 4, row 1; `ORC-VUTX73AUZN.972cc0` |  |
| Al9Ir2 |  | -52 kJ/mol-atom | 0 | DFT |  |  | [1] JIANG 2006 | Table 1, p. 2, row 1; `ORC-BUMGVSBVX5.170cb9` |  |
| AlIr |  | -92.8 kJ/mol-atom ± 1.8 |  | DFT |  |  | [1] JIANG 2006; _cites Jung 1992_ | Table 1, p. 2, row 4; `ORC-3HMBRDGRLN.549cde` |  |
| AlIr |  | -91.9 kJ/mol-atom | 0 | DFT |  |  | [1] JIANG 2006 | Table 1, p. 2, row 3; `ORC-VIRFM6Z3AP.5b4cba` |  |
| Al–Ir fcc |  | -50.2 kJ/mol-atom | 0 | DFT |  |  | [1] JIANG 2006 | Table 1, p. 2, row 7; `ORC-B6ERSBWI3Z` |  |
| Al–Ir fcc |  | -41.1 kJ/mol-atom | 0 | DFT |  |  | [1] JIANG 2006 | Table 1, p. 2, row 6; `ORC-QFXUWJEXZL` |  |
| Al–Ir fcc |  | -32.4 kJ/mol-atom | 0 | DFT |  |  | [1] JIANG 2006 | Table 1, p. 2, row 8; `ORC-SIZSHGRVIH` |  |
| Al–Ir fcc |  | -5.7 kJ/mol-atom | 0 | DFT |  |  | [1] JIANG 2006 | Table 1, p. 2, row 5; `ORC-VJ2BVR2HME` |  |
| Al–Ir fcc |  | -3.9 kJ/mol-atom | 0 | DFT |  |  | [1] JIANG 2006 | Table 1, p. 2, row 9; `ORC-TOQHGPBPW3` |  |
| B2-AlIr | [AlIr](https://data.orchid-project.org/compounds/AlIr.html) | -118 kJ/mol-atom | 298.15 | experimental | -92.527 (mp-aaaaacun) | -91.306 (oqmd-10480) | [2] Abe 2008; _cites Ode 2005_ [doi](https://doi.org/10.1016/j.scriptamat.2005.01.020) | Table 2, p. 3, row 20; `ORC-V3S6RNGLPA.43a09d` |  |

## Other properties

### Phase equilibrium (15)

Table: Phase equilibrium, Al–Ir system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Phase assemblage |  | 1403.15 | B2 + (Ir); _alloy: Ir 1_ | experimental | [3] ZHANG 2008 | Table 1, p. 2, row 15; `ORC-EHLLVWBI3D` |  |
| Phase assemblage |  | 1573.15 | B2 + (Ir); _alloy: Ir 1_ | experimental | [3] ZHANG 2008 | Table 1, p. 2, row 17; `ORC-75UFFO2FN2` |  |
| Phase assemblage |  | 1773.15 | B2 + (Ir); _alloy: Ir 1_ | experimental | [3] ZHANG 2008 | Table 1, p. 2, row 16; `ORC-5TKHPO6XWB` |  |
| Phase composition |  | 1403.15 | B2; _B2: Al 0.4983, Ir 0.5017_ | experimental | [3] ZHANG 2008 | Table 1, p. 2, row 3; `ORC-VFSAOIC24H` |  |
| Phase composition |  | 1403.15 | B2 + (Ir); _B2: Al 0.4899, Ir 0.5101; (Ir): Al 0.0598, Ir 0.9402_ | experimental | [3] ZHANG 2008 | Table 1, p. 2, row 9; `ORC-2H2FZCDUIJ` |  |
| Phase composition |  | 1403.15 | B2 + (Ir); _B2: Al 0.4928, Ir 0.5072_ | experimental | [3] ZHANG 2008 | Table 1, p. 2, row 6; `ORC-DJFE7U2KMG` |  |
| Phase composition |  | 1403.15 | B2 + (Ir); _B2: Al 0.4889, Ir 0.5111; (Ir): Al 0.0602, Ir 0.9398_ | experimental | [3] ZHANG 2008 | Table 1, p. 2, row 12; `ORC-DV2KZLQCIR` |  |
| Phase composition |  | 1573.15 | B2; _B2: Al 0.4993, Ir 0.5007_ | experimental | [3] ZHANG 2008 | Table 1, p. 2, row 2; `ORC-FV46SCMNAZ` |  |
| Phase composition |  | 1573.15 | B2 + (Ir); _B2: Al 0.4821, Ir 0.5179; (Ir): Al 0.0801, Ir 0.9199_ | experimental | [3] ZHANG 2008 | Table 1, p. 2, row 11; `ORC-43GZ3Z6MGZ` |  |
| Phase composition |  | 1573.15 | B2 + (Ir); _B2: Al 0.481, Ir 0.519; (Ir): Al 0.0792, Ir 0.9208_ | experimental | [3] ZHANG 2008 | Table 1, p. 2, row 8; `ORC-DKJCYEANAH` |  |
| Phase composition |  | 1573.15 | B2 + (Ir); _B2: Al 0.4879, Ir 0.5121_ | experimental | [3] ZHANG 2008 | Table 1, p. 2, row 5; `ORC-IO2ZFMXKME` |  |
| Phase composition |  | 1773.15 | B2; _B2: Al 0.4988, Ir 0.5012_ | experimental | [3] ZHANG 2008 | Table 1, p. 2, row 1; `ORC-LOK6A7OX4B` |  |
| Phase composition |  | 1773.15 | B2 + (Ir); _B2: Al 0.4903, Ir 0.5097_ | experimental | [3] ZHANG 2008 | Table 1, p. 2, row 4; `ORC-4YABPT2CZQ` |  |
| Phase composition |  | 1773.15 | B2 + (Ir); _B2: Al 0.4778, Ir 0.5222; (Ir): Al 0.0987, Ir 0.9013_ | experimental | [3] ZHANG 2008 | Table 1, p. 2, row 7; `ORC-7HKKMGPFKH` |  |
| Phase composition |  | 1773.15 | B2 + (Ir); _B2: Al 0.4795, Ir 0.5205; (Ir): Al 0.0983, Ir 0.9017_ | experimental | [3] ZHANG 2008 | Table 1, p. 2, row 10; `ORC-HHAEYDXEGC` |  |

### Crystal structure (59)

Table: Crystal structure, Al–Ir system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Lattice a; _printed: a_ | 7.674 Å |  | Al2.7Ir; _alloy: Ir 0.27027_ | model | [2] Abe 2008 | Table 2, p. 3, row 15; `ORC-S5AZ76Q6DC.12527f` |  |
| Lattice a; _printed: a_ | 12.286 Å |  | Al28Ir9; _alloy: Ir 0.243243_ | model | [2] Abe 2008 | Table 2, p. 3, row 10; `ORC-3WJSTZEJG2.23a92a` |  |
| Lattice a; _printed: a_ | 12.286 Å |  | Al28Ir9; _alloy: Ir 0.243243_ | experimental | [2] Abe 2008; _cites Pavlyuchkov 2008_ [doi](https://doi.org/10.1016/j.intermet.2008.03.006) | Table 2, p. 3, row 11; `ORC-XLNCTI6HHB.342345` |  |
| Lattice a; _printed: a_ | 4.246 Å | 0 | Al3Ir; _alloy: Ir 0.25_ | DFT | [2] Abe 2008; _cites Jiang 2006_ | Table 2, p. 3, row 14; `ORC-GSLOYSA7L2.8387cb` |  |
| Lattice a; _printed: a_ | 4.3 Å | 0 | Al3Ir; _alloy: Ir 0.25_ | DFT | [2] Abe 2008; _cites Jiang 2006_ | Table 2, p. 3, row 13; `ORC-OFASMCE24B.7bf638` |  |
| Lattice a; _printed: a_ | 4.25 Å | 0 | Al3Ir; _alloy: Ir 0.25_ | model | [2] Abe 2008 | Table 2, p. 3, row 12; `ORC-Q7PYT3IU5C.33aae1` |  |
| Lattice a | 4.3 Å | 0 | Al3Ir; _alloy: Ir 0.25_ | DFT | [1] JIANG 2006 | Table 2, p. 2, row 3; `ORC-UXXW2ABWU7.d20739` |  |
| Lattice a; _printed: a_ | 16.76 Å |  | Al45Ir13; _alloy: Ir 0.224138_ | model | [2] Abe 2008 | Table 2, p. 3, row 6; `ORC-5LGWGBQNFJ.a57b65` |  |
| Lattice a; _printed: a_ | 16.771 Å |  | Al45Ir13; _alloy: Ir 0.224138_ | unspecified | [2] Abe 2008; _cites Pavlyuchkov 2008_ [doi](https://doi.org/10.1016/j.intermet.2008.03.006) | Table 2, p. 3, row 7; `ORC-KCSALOPUUZ.19de27` |  |
| Lattice a; _printed: a_ | 8.906 Å | 0 | Al9Ir2; _alloy: Ir 0.181818_ | model | [2] Abe 2008 | Table 2, p. 3, row 3; `ORC-27TTNLXWTM.6522f5` |  |
| Lattice a | 6.4 Å | 0 | Al9Ir2; _alloy: Ir 0.181818_ | DFT | [1] JIANG 2006 | Table 2, p. 2, row 1; `ORC-4UBGI5KKAR.ee8d01` |  |
| Lattice a; _printed: a_ | 8.732 Å |  | Al9Ir2; _alloy: Ir 0.181818_ | experimental | [2] Abe 2008; _cites Bostrom 2005_ [doi](https://doi.org/10.1002/zaac.200400418) | Table 2, p. 3, row 5; `ORC-5ZE7DDKKOZ.4b8fd5` |  |
| Lattice a; _printed: a_ | 8.77 Å | 0 | Al9Ir2; _alloy: Ir 0.181818_ | DFT | [2] Abe 2008; _cites Jiang 2006_ | Table 2, p. 3, row 4; `ORC-SLTJK7NL2B.a15a92` |  |
| Lattice a | 3.02 Å | 0 | AlIr; _alloy: Ir 0.5_ | DFT | [1] JIANG 2006 | Table 2, p. 2, row 5; `ORC-2POO2JY5NL.e27a03` |  |
| Lattice a; _printed: a_ | 2.985 Å | 0 | B2-AlIr; _alloy: Ir 0.5_ | unspecified | [2] Abe 2008; _cites Ferro 1968_ | Table 2, p. 3, row 19; `ORC-DHGX64IQXL.008230` |  |
| Lattice a; _printed: a_ | 3.02 Å | 0 | B2-AlIr; _alloy: Ir 0.5_ | DFT | [2] Abe 2008; _cites Jiang 2006_ | Table 2, p. 3, row 18; `ORC-FWVMYUOZMC.4b48cf` |  |
| Lattice a; _printed: a_ | 3.028 Å | 0 | B2-AlIr; _alloy: Ir 0.5_ | model | [2] Abe 2008 | Table 2, p. 3, row 17; `ORC-OT3Z6GZH5Q.8c044a` |  |
| Lattice a; _printed: a_ | 6.184 Å | 0 | B32-AlIr; _alloy: Ir 0.5_ | model | [2] Abe 2008 | Table 2, p. 3, row 28; `ORC-BW4RNJDN5R.344c81` |  |
| Lattice a; _printed: a_ | 3.878 Å | 0 | L10-AlIr; _alloy: Ir 0.5_ | model | [2] Abe 2008 | Table 2, p. 3, row 27; `ORC-KERB34OBJZ.403eb4` |  |
| Lattice a; _printed: a_ | 3.877 Å | 0 | L12-Al3Ir; _alloy: Ir 0.25_ | model | [2] Abe 2008 | Table 2, p. 3, row 25; `ORC-J3CO5YSR3L.1bd0d9` |  |
| Lattice a; _printed: a_ | 3.867 Å | 0 | L12-AlIr3; _alloy: Ir 0.75_ | model | [2] Abe 2008 | Table 2, p. 3, row 26; `ORC-GWLBKKKVRT.4f611e` |  |
| Lattice a | 4.25 Å | 298.15 | Al3Ir; _alloy: Ir 0.25_ | experimental | [1] JIANG 2006; _cites Edshammar 1967_ | Table 2, p. 2, row 4; `ORC-JXTOR7WACV.cfbe45` |  |
| Lattice a | 6.38 Å | 298.15 | Al9Ir2; _alloy: Ir 0.181818_ | experimental | [1] JIANG 2006; _cites Edshammar 1968_ | Table 2, p. 2, row 2; `ORC-G2LIG7PR42.b21e7c` |  |
| Lattice a | 2.98 Å | 298.15 | AlIr; _alloy: Ir 0.5_ | experimental | [1] JIANG 2006; _cites Esslinger 1957_ | Table 2, p. 2, row 6; `ORC-ZLI6LVYJIS.410c58` |  |
| Lattice b | 4.3 Å | 0 | Al3Ir; _alloy: Ir 0.25_ | DFT | [1] JIANG 2006 | Table 2, p. 2, row 3; `ORC-UXXW2ABWU7.cdf4e2` |  |
| Lattice b; _printed: b_ | 12.321 Å |  | Al45Ir13; _alloy: Ir 0.224138_ | model | [2] Abe 2008 | Table 2, p. 3, row 6; `ORC-5LGWGBQNFJ.49b154` |  |
| Lattice b; _printed: b_ | 12.327 Å |  | Al45Ir13; _alloy: Ir 0.224138_ | unspecified | [2] Abe 2008; _cites Pavlyuchkov 2008_ [doi](https://doi.org/10.1016/j.intermet.2008.03.006) | Table 2, p. 3, row 7; `ORC-KCSALOPUUZ.68ec21` |  |
| Lattice b; _printed: b_ | 6.491 Å | 0 | Al9Ir2; _alloy: Ir 0.181818_ | model | [2] Abe 2008 | Table 2, p. 3, row 3; `ORC-27TTNLXWTM.6a61f5` |  |
| Lattice b | 6.47 Å | 0 | Al9Ir2; _alloy: Ir 0.181818_ | DFT | [1] JIANG 2006 | Table 2, p. 2, row 1; `ORC-4UBGI5KKAR.fdb3dc` |  |
| Lattice b; _printed: b_ | 6.43 Å |  | Al9Ir2; _alloy: Ir 0.181818_ | experimental | [2] Abe 2008; _cites Bostrom 2005_ [doi](https://doi.org/10.1002/zaac.200400418) | Table 2, p. 3, row 5; `ORC-5ZE7DDKKOZ.7c1bf6` |  |
| Lattice b; _printed: b_ | 6.47 Å | 0 | Al9Ir2; _alloy: Ir 0.181818_ | DFT | [2] Abe 2008; _cites Jiang 2006_ | Table 2, p. 3, row 4; `ORC-SLTJK7NL2B.5bf1b5` |  |
| Lattice b | 3.02 Å | 0 | AlIr; _alloy: Ir 0.5_ | DFT | [1] JIANG 2006 | Table 2, p. 2, row 5; `ORC-2POO2JY5NL.4974b4` |  |
| Lattice b | 4.25 Å | 298.15 | Al3Ir; _alloy: Ir 0.25_ | experimental | [1] JIANG 2006; _cites Edshammar 1967_ | Table 2, p. 2, row 4; `ORC-JXTOR7WACV.f870f1` |  |
| Lattice b | 6.43 Å | 298.15 | Al9Ir2; _alloy: Ir 0.181818_ | experimental | [1] JIANG 2006; _cites Edshammar 1968_ | Table 2, p. 2, row 2; `ORC-G2LIG7PR42.22557c` |  |
| Lattice b | 2.98 Å | 298.15 | AlIr; _alloy: Ir 0.5_ | experimental | [1] JIANG 2006; _cites Esslinger 1957_ | Table 2, p. 2, row 6; `ORC-ZLI6LVYJIS.1a0e78` |  |
| Lattice c; _printed: c_ | 27.341 Å |  | Al28Ir9; _alloy: Ir 0.243243_ | model | [2] Abe 2008 | Table 2, p. 3, row 10; `ORC-3WJSTZEJG2.320dcc` |  |
| Lattice c; _printed: c_ | 27.375 Å |  | Al28Ir9; _alloy: Ir 0.243243_ | experimental | [2] Abe 2008; _cites Pavlyuchkov 2008_ [doi](https://doi.org/10.1016/j.intermet.2008.03.006) | Table 2, p. 3, row 11; `ORC-XLNCTI6HHB.321808` |  |
| Lattice c; _printed: c_ | 7.756 Å | 0 | Al3Ir; _alloy: Ir 0.25_ | DFT | [2] Abe 2008; _cites Jiang 2006_ | Table 2, p. 3, row 14; `ORC-GSLOYSA7L2.c871b7` |  |
| Lattice c; _printed: c_ | 7.79 Å | 0 | Al3Ir; _alloy: Ir 0.25_ | DFT | [2] Abe 2008; _cites Jiang 2006_ | Table 2, p. 3, row 13; `ORC-OFASMCE24B.28f451` |  |
| Lattice c; _printed: c_ | 7.76 Å | 0 | Al3Ir; _alloy: Ir 0.25_ | model | [2] Abe 2008 | Table 2, p. 3, row 12; `ORC-Q7PYT3IU5C.7352bd` |  |
| Lattice c | 7.79 Å | 0 | Al3Ir; _alloy: Ir 0.25_ | DFT | [1] JIANG 2006 | Table 2, p. 2, row 3; `ORC-UXXW2ABWU7.7aac5d` |  |
| Lattice c; _printed: c_ | 17.425 Å |  | Al45Ir13; _alloy: Ir 0.224138_ | model | [2] Abe 2008 | Table 2, p. 3, row 6; `ORC-5LGWGBQNFJ.371589` |  |
| Lattice c; _printed: c_ | 17.437 Å |  | Al45Ir13; _alloy: Ir 0.224138_ | unspecified | [2] Abe 2008; _cites Pavlyuchkov 2008_ [doi](https://doi.org/10.1016/j.intermet.2008.03.006) | Table 2, p. 3, row 7; `ORC-KCSALOPUUZ.29b7c6` |  |
| Lattice c; _printed: c_ | 6.463 Å | 0 | Al9Ir2; _alloy: Ir 0.181818_ | model | [2] Abe 2008 | Table 2, p. 3, row 3; `ORC-27TTNLXWTM.115379` |  |
| Lattice c | 8.77 Å | 0 | Al9Ir2; _alloy: Ir 0.181818_ | DFT | [1] JIANG 2006 | Table 2, p. 2, row 1; `ORC-4UBGI5KKAR.aeef79` |  |
| Lattice c; _printed: c_ | 6.378 Å |  | Al9Ir2; _alloy: Ir 0.181818_ | experimental | [2] Abe 2008; _cites Bostrom 2005_ [doi](https://doi.org/10.1002/zaac.200400418) | Table 2, p. 3, row 5; `ORC-5ZE7DDKKOZ.081761` |  |
| Lattice c; _printed: c_ | 6.4 Å | 0 | Al9Ir2; _alloy: Ir 0.181818_ | DFT | [2] Abe 2008; _cites Jiang 2006_ | Table 2, p. 3, row 4; `ORC-SLTJK7NL2B.d71a08` |  |
| Lattice c | 3.02 Å | 0 | AlIr; _alloy: Ir 0.5_ | DFT | [1] JIANG 2006 | Table 2, p. 2, row 5; `ORC-2POO2JY5NL.c9222d` |  |
| Lattice c | 7.76 Å | 298.15 | Al3Ir; _alloy: Ir 0.25_ | experimental | [1] JIANG 2006; _cites Edshammar 1967_ | Table 2, p. 2, row 4; `ORC-JXTOR7WACV.a28030` |  |
| Lattice c | 8.73 Å | 298.15 | Al9Ir2; _alloy: Ir 0.181818_ | experimental | [1] JIANG 2006; _cites Edshammar 1968_ | Table 2, p. 2, row 2; `ORC-G2LIG7PR42.40c5af` |  |
| Lattice c | 2.98 Å | 298.15 | AlIr; _alloy: Ir 0.5_ | experimental | [1] JIANG 2006; _cites Esslinger 1957_ | Table 2, p. 2, row 6; `ORC-ZLI6LVYJIS.1fc1db` |  |
| lattice alpha | 90 ° | 0 | Al9Ir2; _alloy: Ir 0.181818_ | DFT | [1] JIANG 2006 | Table 2, p. 2, row 1; `ORC-4UBGI5KKAR.17c905` |  |
| lattice alpha | 90 ° | 298.15 | Al9Ir2; _alloy: Ir 0.181818_ | experimental | [1] JIANG 2006; _cites Edshammar 1968_ | Table 2, p. 2, row 2; `ORC-G2LIG7PR42.910111` |  |
| lattice beta | 95.1 ° | 0 | Al9Ir2; _alloy: Ir 0.181818_ | DFT | [1] JIANG 2006 | Table 2, p. 2, row 1; `ORC-4UBGI5KKAR.ec3db8` |  |
| lattice beta | 94.8 ° | 298.15 | Al9Ir2; _alloy: Ir 0.181818_ | experimental | [1] JIANG 2006; _cites Edshammar 1968_ | Table 2, p. 2, row 2; `ORC-G2LIG7PR42.7b529f` |  |
| lattice c a | 1.81 not_printed | 0 | Al3Ir; _alloy: Ir 0.25_ | DFT | [1] JIANG 2006 | Table 2, p. 2, row 3; `ORC-UXXW2ABWU7.81fc8d` |  |
| lattice c a | 1.83 not_printed | 298.15 | Al3Ir; _alloy: Ir 0.25_ | experimental | [1] JIANG 2006; _cites Edshammar 1967_ | Table 2, p. 2, row 4; `ORC-JXTOR7WACV.27be20` |  |
| lattice gamma | 90 ° | 0 | Al9Ir2; _alloy: Ir 0.181818_ | DFT | [1] JIANG 2006 | Table 2, p. 2, row 1; `ORC-4UBGI5KKAR.ae2618` |  |
| lattice gamma | 90 ° | 298.15 | Al9Ir2; _alloy: Ir 0.181818_ | experimental | [1] JIANG 2006; _cites Edshammar 1968_ | Table 2, p. 2, row 2; `ORC-G2LIG7PR42.98e767` |  |

## Sources

Reporting papers the values were read from (a value cited from another work names that work in its row).

1. C JIANG, B GLEESON, A combined first-principles/CALPHAD modeling of the Al–Ir system, Acta Materialia 54, 4101-4110 (2006). [doi:10.1016/j.actamat.2006.03.058](https://doi.org/10.1016/j.actamat.2006.03.058)
2. 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](https://doi.org/10.1016/j.calphad.2008.09.014)
3. C ZHANG, J ZHU, Y YANG, F ZHANG, Y CHANG, Experimental investigation and thermodynamic reassessment of the Ir-rich zone in the Al–Ir system, Scripta Materialia 59, 403-406 (2008). [doi:10.1016/j.scriptamat.2008.04.012](https://doi.org/10.1016/j.scriptamat.2008.04.012)

## Please cite

- R. Arróyave, J. Saal, D. Shin, ORCHID-Values: thermodynamic and phase-equilibrium values read from the literature (version 2026.10; Version 1, machine-extracted), Zenodo (2026). https://doi.org/10.5281/zenodo.23735569
- R. Arróyave, J. Saal, D. Shin, ORCHID-Diagrams: calculated binary phase diagrams (version 2026.10), Zenodo (2026). https://doi.org/10.5281/zenodo.23735859
- R. Arróyave, J. Saal, D. Shin, ORCHID-Hulls: binary convex hulls (Materials Project, OQMD, assessed CALPHAD) (version 2026.10), Zenodo (2026). https://doi.org/10.5281/zenodo.23735891
- R. Arróyave, J. Saal, D. Shin, ORCHID data: umbrella record of the ORCHID datasets (version 2026.10; Version 1, machine-extracted), Zenodo (2026). https://doi.org/10.5281/zenodo.23736065

Also cite the original source of every value you use (paper_citation / paper_doi, and cited_dois for values the paper cites from earlier work); B. Hallstedt, The SGTE collection of binary datasets, Calphad 89 (2025) 102833, https://doi.org/10.1016/j.calphad.2025.102833 (CC BY 4.0), and the original assessment named in each file; A. Jain et al., The Materials Project: A materials genome approach to accelerating materials innovation, APL Materials 1 (2013) 011002, https://doi.org/10.1063/1.4812323 (CC BY 4.0); J. E. Saal et al., JOM 65 (2013) 1501, https://doi.org/10.1007/s11837-013-0755-4 and S. Kirklin et al., npj Comput. Mater. 1 (2015) 15010, https://doi.org/10.1038/npjcompumats.2015.10 (CC BY 4.0).

Version 1, machine-extracted: values were read by language-model readers constrained to quote their source and checked automatically, and the release was then audited on the printed pages by adversarial audits, an independent second review of fit-facing records and a preliminary human review of a frozen sample. Flags such as accepted and ESPEI-ready record screening results, not certification; known issues are listed in the release notes.

```bibtex
@misc{orchid_literature_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Values: thermodynamic and phase-equilibrium values read from the literature}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735569},
  url       = {https://doi.org/10.5281/zenodo.23735569},
  note      = {Version 1, machine-extracted}
}

@misc{orchid_phase_diagrams_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Diagrams: calculated binary phase diagrams}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735859},
  url       = {https://doi.org/10.5281/zenodo.23735859}
}

@misc{orchid_hulls_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Hulls: binary convex hulls (Materials Project, OQMD, assessed CALPHAD)}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735891},
  url       = {https://doi.org/10.5281/zenodo.23735891}
}

@misc{orchid_data_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID data: umbrella record of the ORCHID datasets}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23736065},
  url       = {https://doi.org/10.5281/zenodo.23736065},
  note      = {Version 1, machine-extracted}
}
```

---

Derived data CC BY 4.0 ([licence](https://creativecommons.org/licenses/by/4.0/)): cite ORCHID ([CITATION.cff](https://data.orchid-project.org/CITATION.cff)) and the original sources. Quotes are short excerpts kept so that each value can be checked; they remain under the publishers' copyright and are not relicensed. Source papers, page images and full text are not redistributed. Field reference: [SCHEMA.md](https://data.orchid-project.org/literature/SCHEMA.md). Machine-readable guide: [llms.txt](https://data.orchid-project.org/llms.txt). Found an error? The report link of a value (Markdown: its id, ORC-..., in the Location column) opens a pre-filled GitHub issue, https://github.com/orchid-calphad/orchid-data/issues/new?template=report-value-error.yml&record_id=\<id>, carrying only the record id, source and value; [how to contribute](https://orchid-project.org/contribute/).