# Dy system > Dy system: 21 accepted literature values (crystal structure 13, phase transition 8) and 0 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote. HTML: https://data.orchid-project.org/systems/DY.html · Markdown: https://data.orchid-project.org/systems/DY.md 21 accepted literature values from 6 paper(s) (experimental 8, model 11, DFT 2); 0 calculated phase diagram(s). Data: [JSON](https://data.orchid-project.org/literature/systems/DY.json) · [CSV](https://data.orchid-project.org/systems/DY.csv) · [interactive explorer](https://orchid-project.org/data-explorer/#DY) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/DY.html) · [Markdown](https://data.orchid-project.org/systems/DY.md) Table: Accepted values by evidence class | Evidence class | Values | |---|---:| | experimental | 8 | | model | 11 | | DFT | 2 | Table: Accepted values by property group | Property group | Values | |---|---:| | phase transition | 8 | | crystal structure | 13 | ## Other properties ### Phase transition (8) Table: Phase transition, Dy system | Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote | |---|---:|---:|---|---|---|---|---| | Phase transition | 1651 K | 1651 | polymorphic: βDy -> αDy; _βDy: Dy 1_ | model | [1] Otmani 2015 | Table 2, p. 3, row 4; `ORC-NL4WK4OHPD` | | | Phase transition | 1653 K | 1653 | polymorphic: βDy -> αDy; _βDy: Dy 1_ | experimental | [1] Otmani 2015; _cites McMasters 1973_ [doi](https://doi.org/10.1016/0022-5088%2873%2990144-6) | Table 2, p. 3, row 3; `ORC-TITETLDTYM` | | | Phase transition | 1654 K | 1654 | polymorphic: Dy; _alloy: Dy 1_ | model | [2] Norgren 2000; _cites Saunders 1998_ | Table 1, p. 4, row 18; `ORC-GS7OFSKISX` | | | Phase transition | 1654.15 K | 1654.15 | polymorphic: βDy -> αDy; _βDy: _ | experimental | [3] Wang 2009; _cites Massalski 1990_ | Table 3, p. 4, row 1; `ORC-7J4WZU2EW7` | | | Phase transition | 1654.15 K | 1654.15 | polymorphic: βDy -> αDy; _βDy: _ | model | [3] Wang 2009 | Table 3, p. 4, row 2; `ORC-JKFC4Z7KLF` | | | Phase transition | 1659 K | 1659 | polymorphic: Dy; _alloy: Dy 1_ | model | [2] Norgren 2000; _cites Dinsdale 1991_ [doi](https://doi.org/10.1016/0364-5916%2891%2990030-n) | Table 1, p. 4, row 17; `ORC-32HALI2R5A` | | | Phase transition | 1685 K | 1685 | congruent melting: L -> βDy; _L: Dy 1_ | experimental | [1] Otmani 2015; _cites McMasters 1973_ [doi](https://doi.org/10.1016/0022-5088%2873%2990144-6) | Table 2, p. 3, row 1; `ORC-3SSXTYR7CJ` | | | Phase transition | 1685 K | 1685 | congruent melting: L -> βDy; _L: Dy 1_ | model | [1] Otmani 2015 | Table 2, p. 3, row 2; `ORC-63QPS2YBQS` | | ### Crystal structure (13) Table: Crystal structure, Dy system | Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote | |---|---:|---:|---|---|---|---|---| | Lattice a; _printed: a_ | 3.604 Å | | Dy; _alloy: Dy 1_ | model | [4] Long 2010; _cites Wang 2004_ [doi](https://doi.org/10.1016/j.calphad.2004.05.002) | Table 1, p. 3, row 26; `ORC-4T7DJMZ472.913033` | | | Lattice a | 3.511 Å | | Dy; _alloy: Dy 1_ | model | [5] Wang 2013 | Table 3, p. 3, row 5; `ORC-S3ERPWQTVW.a39ac0` | | | Lattice a; _printed: a_ | 3.588 Å | | Dy; _alloy: Dy 1_ | model | [4] Long 2010; _cites Morozkin 2002_ [doi](https://doi.org/10.1016/s0925-8388%2802%2900404-8) | Table 1, p. 3, row 27; `ORC-XNPDKT4GVL.b44cd5` | | | Lattice a | 3.4936 Å | 298.15 | Dy; _alloy: Dy 1_ | experimental | [5] Wang 2013; _cites Shen 2007_ [doi](https://doi.org/10.1103/physrevb.75.064109) | Table 3, p. 3, row 6; `ORC-GD2AGXZOZA.834587` | | | Lattice a; _printed: a_ | 3.606 Å | 298.15 | Dy; _alloy: Dy 1_ | DFT | [4] Long 2010 | Table 1, p. 3, row 25; `ORC-HMTCKCLHCD.68d697` | | | Lattice a | 35.93 Å | 298.15 | bcc(Dy) | experimental | [6] Cui 2023; _cites Harris 1969_ [doi](https://doi.org/10.1016/0022-5088%2869%2990154-4) | Table 1, p. 2, row 4; `ORC-EOV6S73HHS.c1400e` | | | Lattice a | 3.98 Å | 298.15 | hcp(Dy) | experimental | [6] Cui 2023; _cites Dvorina 1967_ | Table 1, p. 2, row 3; `ORC-KOIXKHBHED` | | | Lattice c; _printed: c_ | 5.626 Å | | Dy; _alloy: Dy 1_ | model | [4] Long 2010; _cites Wang 2004_ [doi](https://doi.org/10.1016/j.calphad.2004.05.002) | Table 1, p. 3, row 26; `ORC-4T7DJMZ472.6210a6` | | | Lattice c | 5.603 Å | | Dy; _alloy: Dy 1_ | model | [5] Wang 2013 | Table 3, p. 3, row 5; `ORC-S3ERPWQTVW.cb48ea` | | | Lattice c; _printed: c_ | 5.646 Å | | Dy; _alloy: Dy 1_ | model | [4] Long 2010; _cites Morozkin 2002_ [doi](https://doi.org/10.1016/s0925-8388%2802%2900404-8) | Table 1, p. 3, row 27; `ORC-XNPDKT4GVL.0532aa` | | | Lattice c | 5.506 Å | 298.15 | Dy; _alloy: Dy 1_ | experimental | [5] Wang 2013; _cites Shen 2007_ [doi](https://doi.org/10.1103/physrevb.75.064109) | Table 3, p. 3, row 6; `ORC-GD2AGXZOZA.d91ef1` | | | Lattice c; _printed: c_ | 5.619 Å | 298.15 | Dy; _alloy: Dy 1_ | DFT | [4] Long 2010 | Table 1, p. 3, row 25; `ORC-HMTCKCLHCD.a36d10` | | | Lattice c | 56.537 Å | 298.15 | bcc(Dy) | experimental | [6] Cui 2023; _cites Harris 1969_ [doi](https://doi.org/10.1016/0022-5088%2869%2990154-4) | Table 1, p. 2, row 4; `ORC-EOV6S73HHS.b09369` | | ## Sources Reporting papers the values were read from (a value cited from another work names that work in its row). 1. Samira Otmani, Kamal Mahdouk, Thermodynamic assessment of the dysprosium–gold binary system, Journal of Alloys and Compounds 648, 581-586 (2015). [doi:10.1016/j.jallcom.2015.07.002](https://doi.org/10.1016/j.jallcom.2015.07.002) 2. Susanne Norgren, Thermodynamic assessment of the Ho-Tb, Ho-Dy, Ho-Er, Er-Tb, and Er-Dy systems, JPE 21, 148-156 (2000). [doi:10.1361/105497100770340200](https://doi.org/10.1361/105497100770340200) 3. C.P. Wang, Z. Lin, X.J. Liu, Thermodynamic assessments of the Dy–Mn and Mn–Pr systems, Journal of Alloys and Compounds 469, 123-128 (2009). [doi:10.1016/j.jallcom.2008.01.092](https://doi.org/10.1016/j.jallcom.2008.01.092) 4. Z.H. Long, Y.J. Yang, S. Jin, H.S. Liu, F. Zheng, Z.P. Jin, Thermodynamic assessments of Ag–Dy and Ag–Er binary systems, Journal of Alloys and Compounds 489, 146-151 (2010). [doi:10.1016/j.jallcom.2009.09.036](https://doi.org/10.1016/j.jallcom.2009.09.036) 5. Jinsan Wang, Changrong Li, Cuiping Guo, Zhenmin Du, Bo Wu, Thermodynamic assessment of the Bi–Er and the Bi–Dy systems, Thermochimica Acta 566, 44-49 (2013). [doi:10.1016/j.tca.2013.05.024](https://doi.org/10.1016/j.tca.2013.05.024) 6. Dongyu Cui, Jiong Wang, Jiaqiang Zhou, Thermodynamic Modeling of the Te-X (X = Gd, Dy, Ho) Binary Systems Combined with the First-Principles Method, J. Phase Equilib. Diffus. 44, 456-467 (2023). [doi:10.1007/s11669-023-01051-1](https://doi.org/10.1007/s11669-023-01051-1) ## 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 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_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/).