Ru–Sc system

24 accepted literature values from 1 paper(s) (experimental 12, model 12); 1 calculated phase diagram(s).

Data: JSON · CSV · interactive explorer · interactive phase diagram · phases (11) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	12
model	12

Accepted values by property group
Property group	Values
invariant reaction	24

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.

Assessments with a calculated phase diagram
TDB file	Assessment	SHA-256	Links
RuSc-07Du.tdb	Z. Du, Z. Jiang, C. Li, J. Alloys Compd., 427, 148-52(2007). doi:10.1016/j.jallcom.2006.03.029	`69e3b912bc65c049dbce96120b21a50d3838afcf8c0a494b84513bab7058f614`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
RuSc-07Du.tdb	2033.07	HCP_A3 (x(Sc) 0.04015) + LIQUID (x(Sc) 0.2582) + RU2SC_C14 (x(Sc) 0.33705)
RuSc-07Du.tdb	1993.28	RU2SC_C14 (x(Sc) 0.37319) + LIQUID (x(Sc) 0.45313) + B2_BCC (x(Sc) 0.4942)
RuSc-07Du.tdb	1993.28	RU2SC_C14 (x(Sc) 0.37319) + LIQUID (x(Sc) 0.45313) + B2_BCC (x(Sc) 0.4942)
RuSc-07Du.tdb	1607.99	HCP_A3 (x(Sc) 1) + BCC_A2 (x(Sc) 1) + B2_BCC (x(Sc) 1)
RuSc-07Du.tdb	1572.87	B2_BCC (x(Sc) 0.5922) + RU3SC5_D88 (x(Sc) 0.625) + LIQUID (x(Sc) 0.69538)
RuSc-07Du.tdb	1572.87	B2_BCC (x(Sc) 0.5922) + RU3SC5_D88 (x(Sc) 0.625) + LIQUID (x(Sc) 0.69538)
RuSc-07Du.tdb	1473.12	RU13SC57 (x(Sc) 0.81429) + LIQUID (x(Sc) 0.87372) + B2_BCC (x(Sc) 0.93048)
RuSc-07Du.tdb	1473.12	RU13SC57 (x(Sc) 0.81429) + LIQUID (x(Sc) 0.87374) + B2_BCC (x(Sc) 0.93048)
RuSc-07Du.tdb	1473.12	RU13SC57 (x(Sc) 0.81429) + LIQUID (x(Sc) 0.87374) + BCC_A2 (x(Sc) 0.93048)
RuSc-07Du.tdb	1433.14	RU3SC5_D88 (x(Sc) 0.625) + LIQUID (x(Sc) 0.73865) + RU13SC57 (x(Sc) 0.81429)
RuSc-07Du.tdb	1433.14	RU3SC5_D88 (x(Sc) 0.625) + LIQUID (x(Sc) 0.73861) + RU13SC57 (x(Sc) 0.81429)
RuSc-07Du.tdb	1403.04	RU3SC5_D88 (x(Sc) 0.625) + RUSC2 (x(Sc) 0.66667) + RU13SC57 (x(Sc) 0.81429)
RuSc-07Du.tdb	1343.02	RUSC2 (x(Sc) 0.66667) + RU4SC11 (x(Sc) 0.73333) + RU13SC57 (x(Sc) 0.81429)
RuSc-07Du.tdb	1322.96	RU13SC57 (x(Sc) 0.81429) + B2_BCC (x(Sc) 0.96001) + HCP_A3 (x(Sc) 0.99076)
RuSc-07Du.tdb	1322.96	RU13SC57 (x(Sc) 0.81429) + BCC_A2 (x(Sc) 0.96001) + HCP_A3 (x(Sc) 0.99076)
RuSc-07Du.tdb	1222.99	RU13SC57 (x(Sc) 0.81429) + RU7SC44 (x(Sc) 0.86275) + HCP_A3 (x(Sc) 0.99438)
RuSc-07Du.tdb	1222.99	RU13SC57 (x(Sc) 0.81429) + RU7SC44 (x(Sc) 0.86275) + HCP_A3 (x(Sc) 0.99439)

Convex hulls: Materials Project DFT hull · OQMD DFT hull

Invariant reactions (literature)

Invariant reactions reported in the literature for the Ru–Sc system (24)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
2093	congruent melting: liq. -> Ru2Sc	L: Sc 0.33; Ru2Sc: Ru 0.666667, Sc 0.333333	experimental	[1] Du 2007 cites Eremenko 1995 doi	Table 2, p. 4, row 4 report
2093	congruent melting: liq. -> Ru2Sc	L: Sc 0.3486; Ru2Sc: Ru 0.666667, Sc 0.333333	model	[1] Du 2007	Table 2, p. 4, row 3 report
2033	congruent melting: liq. -> RuSc	L: Sc 0.5181; RuSc: Ru 0.5, Sc 0.5	model	[1] Du 2007	Table 2, p. 4, row 7 report
2033	congruent melting: liq. -> RuSc	L: Sc 0.5; RuSc: Ru 0.5, Sc 0.5	experimental	[1] Du 2007 cites Eremenko 1995 doi	Table 2, p. 4, row 8 report
2033	eutectic: liq. -> hcp(Ru) + Ru2Sc	L: Sc 0.2582; hcp(Ru): Sc 0.0402; Ru2Sc: Sc 0.3371	model	[1] Du 2007	Table 2, p. 4, row 1 report
2033	eutectic: liq. -> hcp(Ru) + Ru2Sc	L: Sc 0.24; hcp(Ru): Sc 0.025; Ru2Sc: Sc 0.33	experimental	[1] Du 2007 cites Eremenko 1995 doi	Table 2, p. 4, row 2 report
1993	eutectic: liq. -> Ru2Sc + RuSc	L: Sc 0.48; Ru2Sc: Sc 0.4; RuSc: Sc 0.5	experimental	[1] Du 2007 cites Eremenko 1995 doi	Table 2, p. 4, row 6 report
1993	eutectic: liq. -> Ru2Sc + RuSc	L: Sc 0.4531; Ru2Sc: Sc 0.3732; RuSc: Sc 0.4942	model	[1] Du 2007	Table 2, p. 4, row 5 report
1573	liq. + RuSc -> Ru3Sc5	L: Sc 0.7; RuSc: Sc 0.6; Ru3Sc5: Ru 0.375, Sc 0.625	experimental	[1] Du 2007 cites Eremenko 1995 doi	Table 2, p. 4, row 10 report
1573	liq. + RuSc -> Ru3Sc5	L: Sc 0.6954; RuSc: Sc 0.5922; Ru3Sc5: Ru 0.375, Sc 0.625	model	[1] Du 2007	Table 2, p. 4, row 9 report
1543	congruent melting: liq. -> Ru13Sc57	L: Sc 0.8143; Ru13Sc57: Ru 0.185714, Sc 0.814286	model	[1] Du 2007	Table 2, p. 4, row 17 report
1543	congruent melting: liq. -> Ru13Sc57	L: Sc 0.81; Ru13Sc57: Ru 0.185714, Sc 0.814286	experimental	[1] Du 2007 cites Eremenko 1995 doi	Table 2, p. 4, row 18 report
1473	eutectic: liq. -> Ru13Sc57 + bcc(Sc)	L: Sc 0.8737; Ru13Sc57: Ru 0.185714, Sc 0.814286; bcc(Sc): Sc 0.9305	model	[1] Du 2007	Table 2, p. 4, row 19 report
1473	eutectic: liq. -> Ru13Sc57 + bcc(Sc)	L: Sc 0.89; Ru13Sc57: Ru 0.185714, Sc 0.814286; bcc(Sc): Sc 0.95	experimental	[1] Du 2007 cites Eremenko 1995 doi	Table 2, p. 4, row 20 report
1433	eutectic: liq. -> Ru3Sc5 + Ru13Sc57	L: Sc 0.7386; Ru3Sc5: Ru 0.375, Sc 0.625; Ru13Sc57: Ru 0.185714, Sc 0.814286	model	[1] Du 2007	Table 2, p. 4, row 15 report
1433	eutectic: liq. -> Ru3Sc5 + Ru13Sc57	Ru3Sc5: Ru 0.375, Sc 0.625; Ru13Sc57: Ru 0.185714, Sc 0.814286	experimental	[1] Du 2007 cites Eremenko 1995 doi	Table 2, p. 4, row 16 report
1403	Ru3Sc5 + Ru13Sc57 -> RuSc2	Ru3Sc5: Ru 0.375, Sc 0.625; Ru13Sc57: Ru 0.185714, Sc 0.814286; RuSc2: Ru 0.333333, Sc 0.666667	model	[1] Du 2007	Table 2, p. 4, row 11 report
1403	Ru3Sc5 + Ru13Sc57 -> RuSc2	Ru3Sc5: Ru 0.375, Sc 0.625; Ru13Sc57: Ru 0.185714, Sc 0.814286; RuSc2: Ru 0.333333, Sc 0.666667	experimental	[1] Du 2007 cites Eremenko 1995 doi	Table 2, p. 4, row 12 report
1343	RuSc2 + Ru13Sc57 -> Ru4Sc11	RuSc2: Ru 0.333333, Sc 0.666667; Ru13Sc57: Ru 0.185714, Sc 0.814286; Ru4Sc11: Ru 0.266667, Sc 0.733333	experimental	[1] Du 2007 cites Eremenko 1995 doi	Table 2, p. 4, row 14 report
1343	RuSc2 + Ru13Sc57 -> Ru4Sc11	RuSc2: Ru 0.333333, Sc 0.666667; Ru13Sc57: Ru 0.185714, Sc 0.814286; Ru4Sc11: Ru 0.266667, Sc 0.733333	model	[1] Du 2007	Table 2, p. 4, row 13 report
1323	bcc(Sc) -> Ru13Sc57 + hcp(Sc)	bcc(Sc): Sc 0.96; Ru13Sc57: Ru 0.185714, Sc 0.814286; hcp(Sc): Sc 0.99	experimental	[1] Du 2007 cites Eremenko 1995 doi	Table 2, p. 4, row 22 report
1323	bcc(Sc) -> Ru13Sc57 + hcp(Sc)	bcc(Sc): Sc 0.9611; Ru13Sc57: Ru 0.185714, Sc 0.814286; hcp(Sc): Sc 0.9918	model	[1] Du 2007	Table 2, p. 4, row 21 report
1223	Ru13Sc57 + hcp (Sc) -> Ru7Sc44	Ru13Sc57: Ru 0.185714, Sc 0.814286; hcp(Sc): Sc 0.9944; Ru7Sc44: Ru 0.137255, Sc 0.862745	model	[1] Du 2007	Table 2, p. 4, row 23 report
1223	Ru13Sc57 + hcp (Sc) -> Ru7Sc44	Ru13Sc57: Ru 0.185714, Sc 0.814286; hcp(Sc): Sc 1; Ru7Sc44: Ru 0.137255, Sc 0.862745	experimental	[1] Du 2007 cites Eremenko 1995 doi	Table 2, p. 4, row 24 report

Sources

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

Zhenmin Du, Zhenquan Jiang, Changrong Li, Thermodynamic optimization of the Ru–Sc system, Journal of Alloys and Compounds 427, 148-152 (2007). doi:10.1016/j.jallcom.2006.03.029

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). doi:10.5281/zenodo.23735569
R. Arróyave, J. Saal, D. Shin, ORCHID-Diagrams: calculated binary phase diagrams (version 2026.10), Zenodo (2026). doi: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). doi: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). doi: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.

@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}
}