# Mn–W system > Mn–W system: 8 accepted literature values (crystal structure 8) and 2 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote. HTML: https://data.orchid-project.org/systems/MN-W.html · Markdown: https://data.orchid-project.org/systems/MN-W.md 8 accepted literature values from 1 paper(s) (experimental 8); 2 calculated phase diagram(s). 4 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/MN-W.json) · [CSV](https://data.orchid-project.org/systems/MN-W.csv) · [interactive explorer](https://orchid-project.org/data-explorer/#MN-W) · [interactive phase diagram](https://orchid-project.org/phase-diagrams/#MN-W/MnW-08Fra.json) · [phases (6)](https://data.orchid-project.org/phases/pages/MN-W.html) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/MN-W.html) · [Markdown](https://data.orchid-project.org/systems/MN-W.md) Table: Accepted values by evidence class | Evidence class | Values | |---|---:| | experimental | 8 | Table: Accepted values by property group | Property group | Values | |---|---:| | crystal structure | 8 | ## 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a calculated phase diagram | TDB file | Assessment | SHA-256 | Links | |---|---|---|---| | MnW-08Fra.tdb | P. Franke, unpublished, 2008. | `73c9fe1bb2c5b04f864560521a0ab09861a65d13179f1bf72a90f6b1c316e3c7` | [viewer](https://orchid-project.org/phase-diagrams/#MN-W/MnW-08Fra.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/MnW-08Fra.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/MnW-08Fra.json) | | MnW-18Els.tdb | O. Elsebaie, K.M. Jaansalu, Int. J. Refract. Hard Mater., 72, 332-40(2018). [doi:10.1016/j.ijrmhm.2018.01.006](https://doi.org/10.1016/j.ijrmhm.2018.01.006) | `4dc5d2756f97b60007eff9ba242920694092f8eae96f020d6533d49732e3cebc` | [viewer](https://orchid-project.org/phase-diagrams/#MN-W/MnW-18Els.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/MnW-18Els.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/MnW-18Els.json) | Table: Calculated three-phase invariants (model, mole fraction of the second component) | TDB file | T (K) | Phases at the invariant | |---|---:|---| | MnW-08Fra.tdb | 1527 | LIQUID (x(W) 0.0039) + BCC_A2#2 (x(W) 0.00961) + BCC_A2 (x(W) 0.99039) | | MnW-08Fra.tdb | 1409.57 | FCC_A1 (x(W) 0.00609) + BCC_A2 (x(W) 0.00633) + BCC_A2#2 (x(W) 0.99366) | | MnW-08Fra.tdb | 1329.47 | CUB_A13 (x(W) 0) + FCC_A1 (x(W) 0.00445) + BCC_A2 (x(W) 0.99545) | | MnW-08Fra.tdb | 1329.47 | CUB_A13 (x(W) 0) + FCC_A1 (x(W) 0.00445) + BCC_A2 (x(W) 0.99545) | | MnW-08Fra.tdb | 980 | CBCC_A12 (x(W) 0) + CUB_A13 (x(W) 0) + BCC_A2 (x(W) 0.99943) | | MnW-08Fra.tdb | 980 | CUB_A13 (x(W) 0) + CBCC_A12 (x(W) 0) + BCC_A2 (x(W) 0.99943) | | MnW-08Fra.tdb | 980 | CUB_A13 (x(W) 0) + CBCC_A12 (x(W) 0) + BCC_A2 (x(W) 0.99943) | | MnW-18Els.tdb | 1541.19 | LIQUID (x(W) 0.04628) + BCC_A2 (x(W) 0.07398) + BCC_A2#2 (x(W) 0.92598) | | MnW-18Els.tdb | 1508.44 | FCC_A1 (x(W) 0) + LIQUID (x(W) 0) + BCC_A2 (x(W) 0) | | MnW-18Els.tdb | 1362.74 | FCC_A1 (x(W) 0.0011) + CUB_A13 (x(W) 0.00149) + BCC_A2 (x(W) 0.00675) | | MnW-18Els.tdb | 1284.37 | CUB_A13 (x(W) 0.00603) + BCC_A2#2 (x(W) 0.03528) + BCC_A2 (x(W) 0.96468) | | MnW-18Els.tdb | 981.81 | CUB_A13 (x(W) 0.00126) + CBCC_A12 (x(W) 0.00178) + BCC_A2 (x(W) 0.99082) | Convex hulls: [Materials Project DFT hull](https://data.orchid-project.org/hulls/dft-mp/MN/MN-W.json) · [OQMD DFT hull](https://data.orchid-project.org/hulls/dft-oqmd/MN/MN-W.json) · [CALPHAD hull MnW-08Fra](https://data.orchid-project.org/hulls/calphad-sgte/MN/MN-W--MnW-08Fra.json) ## Other properties ### Crystal structure (8) Table: Crystal structure, Mn–W system | Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote | |---|---:|---:|---|---|---|---|---| | Lattice a | 3.1627 Å ± 2.000e-4 | 1498.15 | Tungsten-phase | experimental | [1] Elsebaie 2018 | Table 2, p. 4, row 1; `ORC-2P2OI5JPBG` | | | Lattice a | 3.1624 Å ± 8.000e-4 | 1498.15 | Tungsten-phase | experimental | [1] Elsebaie 2018 | Table 2, p. 4, row 5; `ORC-7JEB24UHJS` | | | Lattice a | 3.1614 Å ± 2.000e-4 | 1548.15 | Tungsten-phase | experimental | [1] Elsebaie 2018 | Table 2, p. 4, row 2; `ORC-2F3KR4DAFD` | | | Lattice a | 3.162 Å ± 4.000e-4 | 1548.15 | Tungsten-phase | experimental | [1] Elsebaie 2018 | Table 2, p. 4, row 6; `ORC-VLGO7X7CJI` | | | Lattice a | 3.1623 Å ± 3.000e-4 | 1623.15 | Tungsten-phase | experimental | [1] Elsebaie 2018 | Table 2, p. 4, row 3; `ORC-4F4KWNNYT3` | | | Lattice a | 3.1618 Å ± 4.000e-4 | 1623.15 | Tungsten-phase | experimental | [1] Elsebaie 2018 | Table 2, p. 4, row 7; `ORC-CVDP2DZYSN` | | | Lattice a | 3.1617 Å ± 2.000e-4 | 1698.15 | Tungsten-phase | experimental | [1] Elsebaie 2018 | Table 2, p. 4, row 4; `ORC-5LCQKY2WWV` | | | Lattice a | 3.1612 Å ± 5.000e-4 | 1698.15 | Tungsten-phase | experimental | [1] Elsebaie 2018 | Table 2, p. 4, row 8; `ORC-QWBORCBL54` | | ## Sources Reporting papers the values were read from (a value cited from another work names that work in its row). 1. Ossama Elsebaie, Kevin M. Jaansalu, A study of the manganese–tungsten binary phase diagram, International Journal of Refractory Metals and Hard Materials 72, 332-340 (2018). [doi:10.1016/j.ijrmhm.2018.01.006](https://doi.org/10.1016/j.ijrmhm.2018.01.006) ## 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/).