# Dy–Er–Eu–Gd–Pd–Y–Yb system

> Dy–Er–Eu–Gd–Pd–Y–Yb system: 3 accepted literature values (formation 2, mixing / partial 1) 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-ER-EU-GD-PD-Y-YB.html · Markdown: https://data.orchid-project.org/systems/DY-ER-EU-GD-PD-Y-YB.md

3 accepted literature values from 1 paper(s) (model 3); 0 calculated phase diagram(s).

Data: [JSON](https://data.orchid-project.org/literature/systems/DY-ER-EU-GD-PD-Y-YB.json) · [CSV](https://data.orchid-project.org/systems/DY-ER-EU-GD-PD-Y-YB.csv) · [interactive explorer](https://orchid-project.org/data-explorer/#DY-ER-EU-GD-PD-Y-YB) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/DY-ER-EU-GD-PD-Y-YB.html) · [Markdown](https://data.orchid-project.org/systems/DY-ER-EU-GD-PD-Y-YB.md)

Table: Accepted values by evidence class

| Evidence class | Values |
|---|---:|
| model | 3 |

Table: Accepted values by property group

| Property group | Values |
|---|---:|
| formation | 2 |
| mixing / partial | 1 |

## 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, Dy–Er–Eu–Gd–Pd–Y–Yb system (1)

| Phase | Compound | Value | T (K) | Class | MP DFT (kJ/mol-atom) | OQMD DFT (kJ/mol-atom) | Source | Location | Quote |
|---|---|---:|---:|---|---:|---:|---|---|---|
| Pd7RE |  | -48.326 kJ/mol-atom | 298.15 | model |  |  | [1] Kardellass 2020; _cites Du 2000_ [doi](https://doi.org/10.1016/s0925-8388%2800%2901144-0) | Table 3, p. 6, row 9; `ORC-DHBCNKBI5I.167213` |  |

## Other properties

### Formation (1)

Table: Formation, Dy–Er–Eu–Gd–Pd–Y–Yb system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Entropy of formation; _printed: Entropies of formation_ | 8.268 J/mol-atom/K | 298.15 | Pd7RE; _alloy: Er 0, Eu 0, Gd 0, Pd 0.875, Y 0, Yb 0_ | model | [1] Kardellass 2020; _cites Du 2000_ [doi](https://doi.org/10.1016/s0925-8388%2800%2901144-0) | Table 3, p. 6, row 9; `ORC-DHBCNKBI5I.1db9aa` |  |

### Mixing / partial (1)

Table: Mixing / partial, Dy–Er–Eu–Gd–Pd–Y–Yb system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Gibbs energy of mixing; _printed: Gibbs free Energies_ | -50.7911 kJ/mol-atom | 298.15 | Pd7RE; _alloy: Er 0, Eu 0, Gd 0, Pd 0.875, Y 0, Yb 0_ | model | [1] Kardellass 2020; _cites Du 2000_ [doi](https://doi.org/10.1016/s0925-8388%2800%2901144-0) | Table 3, p. 6, row 9; `ORC-DHBCNKBI5I.3240ad` |  |

## Sources

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

1. Said Kardellass, Colette Servant, Isabelle Drouelle, Fatima Zahra Chrifi-Alaoui, Mohamed Idbenali, Alyen Abahazem et al., Calphad-type assessment of the Pd-Yb binary system supported by first-principles calculations – Part II: Results, Materials Today: Proceedings 24, 140-150 (2020). [doi:10.1016/j.matpr.2019.08.196](https://doi.org/10.1016/j.matpr.2019.08.196)

## 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=\<id>, carrying only the record id, source and value; [how to contribute](https://orchid-project.org/contribute/).