# Pd system > Pd system: 8 accepted literature values (crystal structure 5, other property 3) and 0 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote. HTML: https://data.orchid-project.org/systems/PD.html · Markdown: https://data.orchid-project.org/systems/PD.md 8 accepted literature values from 1 paper(s) (experimental 3, DFT 5); 0 calculated phase diagram(s). Data: [JSON](https://data.orchid-project.org/literature/systems/PD.json) · [CSV](https://data.orchid-project.org/systems/PD.csv) · [interactive explorer](https://orchid-project.org/data-explorer/#PD) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/PD.html) · [Markdown](https://data.orchid-project.org/systems/PD.md) Table: Accepted values by evidence class | Evidence class | Values | |---|---:| | experimental | 3 | | DFT | 5 | Table: Accepted values by property group | Property group | Values | |---|---:| | crystal structure | 5 | | other property | 3 | ## Other properties ### Crystal structure (5) Table: Crystal structure, Pd system | Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote | |---|---:|---:|---|---|---|---|---| | Lattice a | 3.8902 Å | | Pd | experimental | [1] Gong 2022; _cites ref. 50_ | Table 3, p. 29, row 2; `ORC-6SBHNWYFCU.6d1281` | | | Lattice a | 3.9309 Å | 0 | Pd | DFT | [1] Gong 2022 | Table 3, p. 29, row 1; `ORC-ROZV5QFDD7.6f6081` | | | volume; _printed: V0_ | 15.3 Å3/atom | 0 | Pd | DFT | [1] Gong 2022 | Table 4, p. 30, row 1; `ORC-G4TRGY4H2C.c80a2f` | | | volume; _printed: V0_ | 14.716 Å3/atom | | Pd | experimental | [1] Gong 2022; _cites ref. 43_ | Table 4, p. 30, row 3; `ORC-HOUIIQ43CT.a85159` | | | volume; _printed: V0_ | 15.34 Å3/atom | 0 | Pd | DFT | [1] Gong 2022; _cites ref. 43_ | Table 4, p. 30, row 2; `ORC-QVJ3SE7JKU.c1772e` | | ### Other property (3) Table: Other property, Pd system | Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote | |---|---:|---:|---|---|---|---|---| | bulk modulus; _printed: B_ | 167.9 GPa | 0 | Pd | DFT | [1] Gong 2022 | Table 4, p. 30, row 1; `ORC-G4TRGY4H2C.678c06` | | | bulk modulus; _printed: B_ | 195.5 GPa | | Pd | experimental | [1] Gong 2022; _cites ref. 43_ | Table 4, p. 30, row 3; `ORC-HOUIIQ43CT.ed343e` | | | bulk modulus; _printed: B_ | 163.3 GPa | 0 | Pd | DFT | [1] Gong 2022; _cites ref. 43_ | Table 4, p. 30, row 2; `ORC-QVJ3SE7JKU.29088b` | | ## Sources Reporting papers the values were read from (a value cited from another work names that work in its row). 1. Rushi Gong, Shun-Li Shang, Hui Sun, Michael J. Janik, Zi-Kui Liu, Thermodynamic modeling of the Pd–Zn system with uncertainty quantification and its implication to tailor catalysts, Calphad 79, 102491 (2022). [doi:10.1016/j.calphad.2022.102491](https://doi.org/10.1016/j.calphad.2022.102491) ## 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/).