# Al–Tl system > Al–Tl system: 7 accepted literature values (phase transition 4, invariant reaction 3) and 1 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote. HTML: https://data.orchid-project.org/systems/AL-TL.html · Markdown: https://data.orchid-project.org/systems/AL-TL.md 7 accepted literature values from 1 paper(s) (model 7); 1 calculated phase diagram(s). Data: [JSON](https://data.orchid-project.org/literature/systems/AL-TL.json) · [CSV](https://data.orchid-project.org/systems/AL-TL.csv) · [interactive explorer](https://orchid-project.org/data-explorer/#AL-TL) · [interactive phase diagram](https://orchid-project.org/phase-diagrams/#AL-TL/AlTl-89McA.json) · [phases (4)](https://data.orchid-project.org/phases/pages/AL-TL.html) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/AL-TL.html) · [Markdown](https://data.orchid-project.org/systems/AL-TL.md) Table: Accepted values by evidence class | Evidence class | Values | |---|---:| | model | 7 | Table: Accepted values by property group | Property group | Values | |---|---:| | invariant reaction | 3 | | phase transition | 4 | ## 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 | |---|---|---|---| | AlTl-89McA.tdb | A.J. McAlister, Bull. Alloy Phase Diag., 10, 112-14(1989). [doi:10.1007/BF02881414](https://doi.org/10.1007/BF02881414) | `8bed5abcacefdd38de724cc306f818abecea0f6a5ca8faa0dedd755e192876c2` | [viewer](https://orchid-project.org/phase-diagrams/#AL-TL/AlTl-89McA.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/AlTl-89McA.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/AlTl-89McA.json) | Table: Calculated three-phase invariants (model, mole fraction of the second component) | TDB file | T (K) | Phases at the invariant | |---|---:|---| | AlTl-89McA.tdb | 932.39 | FCC_A1 (x(Tl) 0) + LIQUID#2 (x(Tl) 0.00162) + LIQUID (x(Tl) 0.99288) | | AlTl-89McA.tdb | 576.95 | FCC_A1 (x(Tl) 0) + LIQUID (x(Tl) 0.99993) + BCC_A2 (x(Tl) 1) | | AlTl-89McA.tdb | 507 | FCC_A1 (x(Tl) 0) + HCP_A3 (x(Tl) 1) + BCC_A2 (x(Tl) 1) | Convex hulls: [Materials Project DFT hull](https://data.orchid-project.org/hulls/dft-mp/AL/AL-TL.json) · [OQMD DFT hull](https://data.orchid-project.org/hulls/dft-oqmd/AL/AL-TL.json) ## Invariant reactions (literature) Table: Invariant reactions reported in the literature for the Al–Tl system (3) | T (K) | Reaction / phases | Compositions (mole fraction) | Class | Source | Location | Quote | |---:|---|---|---|---|---|---| | 1783.15 | critical point: L -> L1 + L2(b) | L: Tl 0.55 | model | [1] McAlister 1989 | Table I, p. 1, row 3; `ORC-HERW2EZPQR` | | | 1752.15 | peritectic: L1 + vapor -> L2(a) | L1: Tl 0.0039; vapor: Tl 0.0069; L2: Tl 0.0086 | model | [1] McAlister 1989 | Table I, p. 1, row 1; `ORC-5YBG2CH2WK` | | | 932.15 | monotectic: L1 -> (Al) + L2 | L1: Tl 2.000e-5; (Al): Tl 0; L2: Tl 0.00993 | model | [1] McAlister 1989 | Table I, p. 1, row 2; `ORC-IDAAZHZHRU` | | ## Other properties ### Phase transition (4) Table: Phase transition, Al–Tl system | Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote | |---|---:|---:|---|---|---|---|---| | Phase transition | 577.15 K | 577.15 | congruent melting: L -> βTl; _βTl: Tl 1_ | model | [1] McAlister 1989 | Table I, p. 1, row 7; `ORC-L77UL5WMEX` | | | Phase transition | 933.602 K | 933.602 | congruent melting: L -> Al; _Al: Tl 0_ | model | [1] McAlister 1989 | Table I, p. 1, row 6; `ORC-B3NQGTTBG2` | | | Phase transition | 1696.15 K | 1696.15 | other: vapor -> L; _vapor: Tl 1_ | model | [1] McAlister 1989 | Table I, p. 1, row 5; `ORC-VBJHXHCBZ3` | | | Phase transition | 2793.15 K | 2793.15 | other: vapor -> L; _vapor: Tl 0_ | model | [1] McAlister 1989 | Table I, p. 1, row 4; `ORC-PB5K6X3CYH` | | ## Sources Reporting papers the values were read from (a value cited from another work names that work in its row). 1. A. J. McAlister, The Al-Tl (Aluminum-Thallium) system, Bulletin of Alloy Phase Diagrams 10, 112-114 (1989). [doi:10.1007/bf02881414](https://doi.org/10.1007/bf02881414) ## 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=\, carrying only the record id, source and value; [how to contribute](https://orchid-project.org/contribute/).