Sc–Zn system

37 accepted literature values from 1 paper(s) (experimental 18, model 8, DFT 11); 1 calculated phase diagram(s). 1 further extracted value(s) not accepted by the reader-agreement checks are only in the JSON/CSV.

Data: JSON · CSV · interactive explorer · interactive phase diagram · phases (9) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	18
model	8
DFT	11

Accepted values by property group
Property group	Values
invariant reaction	13
phase transition	2
crystal structure	22

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
ScZn-12Tan.tdb	C. Tang, P. Zhou, D.D. Zhao, X.M. Yuan, Y. Tang, P.S. Wang, B. Hu, Y. Du, H.H. Xu, J. Mining Metall. B, 48, 123-30(2012). doi:10.2298/JMMB110909017T	`7b51650bade528a18c6277bf9418ec8a6084ce0c86cd5c23f6f00158ef5b3aae`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
ScZn-12Tan.tdb	1607.31	HCP_A3 (x(Zn) 0.00142) + BCC_A2 (x(Zn) 0.00155) + LIQUID (x(Zn) 0.09757)
ScZn-12Tan.tdb	1298.04	SCZN_B2 (x(Zn) 0.5) + SCZN2 (x(Zn) 0.66667) + LIQUID (x(Zn) 0.68927)
ScZn-12Tan.tdb	1298.04	SCZN_B2 (x(Zn) 0.5) + SCZN2 (x(Zn) 0.66667) + LIQUID (x(Zn) 0.68941)
ScZn-12Tan.tdb	1298.04	SCZN_B2 (x(Zn) 0.5) + SCZN2 (x(Zn) 0.66667) + LIQUID (x(Zn) 0.68926)
ScZn-12Tan.tdb	1223.08	HCP_A3 (x(Zn) 0.00271) + LIQUID (x(Zn) 0.24556) + SCZN_B2 (x(Zn) 0.5)
ScZn-12Tan.tdb	1093.12	SCZN2 (x(Zn) 0.66667) + SC13ZN58 (x(Zn) 0.8169) + LIQUID (x(Zn) 0.83918)
ScZn-12Tan.tdb	1093.12	SCZN2 (x(Zn) 0.66667) + SC13ZN58 (x(Zn) 0.8169) + LIQUID (x(Zn) 0.83929)
ScZn-12Tan.tdb	1093.12	SCZN2 (x(Zn) 0.66667) + SC13ZN58 (x(Zn) 0.8169) + LIQUID (x(Zn) 0.83912)
ScZn-12Tan.tdb	1087.76	SC13ZN58 (x(Zn) 0.8169) + SC3ZN17 (x(Zn) 0.85) + LIQUID (x(Zn) 0.85173)
ScZn-12Tan.tdb	1087.76	SC13ZN58 (x(Zn) 0.8169) + SC3ZN17 (x(Zn) 0.85) + LIQUID (x(Zn) 0.85178)
ScZn-12Tan.tdb	1087.76	SC13ZN58 (x(Zn) 0.8169) + SC3ZN17 (x(Zn) 0.85) + LIQUID (x(Zn) 0.85178)
ScZn-12Tan.tdb	692.22	SC3ZN17 (x(Zn) 0.85) + LIQUID (x(Zn) 0.99918) + HCP_A3 (x(Zn) 1)
ScZn-12Tan.tdb	692.22	SC3ZN17 (x(Zn) 0.85) + LIQUID (x(Zn) 0.99919) + HCP_A3 (x(Zn) 1)
ScZn-12Tan.tdb	692.22	SC3ZN17 (x(Zn) 0.85) + LIQUID (x(Zn) 0.99919) + HCP_A3 (x(Zn) 1)

Convex hulls: Materials Project DFT hull · OQMD DFT hull

Invariant reactions (literature)

Invariant reactions reported in the literature for the Sc–Zn system (13)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
1607.15	eutectic: βSc -> Liquid+αSc	βSc: Zn 0.0016; L: Zn 0.0977; αSc: Zn 0.0014	model	[1] Tang 2012	Table 3, p. 6, row 1 report
1298.15	peritectic: Liquid+ScZn -> ScZn2	L: Zn 0.6893; ScZn: Zn 0.5; ScZn2: Zn 0.6667	model	[1] Tang 2012	Table 3, p. 6, row 5 report
1298.15	peritectic: Liquid+ScZn -> ScZn2	ScZn: Zn 0.5; ScZn2: Zn 0.666667	experimental	[1] Tang 2012 cites Palenzona 1997 doi	Table 3, p. 6, row 4 report
1223.15	eutectic: Liquid -> ScZn+Hcp_A3	L: Zn 0.2455; ScZn: Zn 0.5; Hcp_A3: Zn 0.0024	model	[1] Tang 2012	Table 3, p. 6, row 7 report
1223.15	eutectic: Liquid -> ScZn+Hcp_A3	ScZn: Zn 0.5	experimental	[1] Tang 2012 cites Palenzona 1997 doi	Table 3, p. 6, row 6 report
1093.15	peritectic: Liquid+ScZn2 -> Sc13Zn58	L: Zn 0.8392; ScZn2: Zn 0.6667; Sc13Zn58: Zn 0.8169	model	[1] Tang 2012	Table 3, p. 6, row 9 report
1093.15	peritectic: Liquid+ScZn2 -> Sc13Zn58	ScZn2: Zn 0.666667; Sc13Zn58: Zn 0.816901	experimental	[1] Tang 2012 cites Palenzona 1997 doi	Table 3, p. 6, row 8 report
1088.15	eutectic: Liquid -> Sc13Zn58+Sc3Zn17	Sc13Zn58: Zn 0.816901; Sc3Zn17: Zn 0.85	experimental	[1] Tang 2012 cites Palenzona 1997 doi	Table 3, p. 6, row 10 report
1088.15	eutectic: Liquid -> Sc13Zn58+Sc3Zn17	L: Zn 0.8517; Sc13Zn58: Zn 0.8169; Sc3Zn17: Zn 0.85	model	[1] Tang 2012	Table 3, p. 6, row 11 report
748.15	peritectic: Liquid+Sc3Zn17 -> ScZn12	Sc3Zn17: Zn 0.85; ScZn12: Zn 0.923077	experimental	[1] Tang 2012 cites Palenzona 1997 doi	Table 3, p. 6, row 12 report
748.15	peritectic: Liquid+Sc3Zn17 -> ScZn12	L: Zn 0.9973; Sc3Zn17: Zn 0.85; ScZn12: Zn 0.923	model	[1] Tang 2012	Table 3, p. 6, row 13 report
692.15	eutectic: Liquid -> (Zn)+ScZn12	L: Zn 0.9997; (Zn): Zn 1; ScZn12: Zn 0.923	model	[1] Tang 2012	Table 3, p. 6, row 15 report
688.15	eutectic: Liquid -> (Zn)+ScZn12	ScZn12: Zn 0.923077	experimental	[1] Tang 2012 cites Palenzona 1997 doi	Table 3, p. 6, row 14 report

Other properties

Phase transition (2)

Phase transition, Sc–Zn system
Property	Value	T (K)	Phases / composition	Class	Source	Location	Quote
Phase transition	1503.15 K	1503.15	congruent melting: Liquid -> ScZn L: Zn 0.5; ScZn: Zn 0.5	experimental	[1] Tang 2012 cites Palenzona 1997 doi	Table 3, p. 6, row 2 report
Phase transition	1503.15 K	1503.15	congruent melting: Liquid -> ScZn L: Zn 0.5; ScZn: Zn 0.5	model	[1] Tang 2012	Table 3, p. 6, row 3 report

Crystal structure (22)

Crystal structure, Sc–Zn system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Lattice a	3.308 Å		(αSc) alloy: Zn 0	experimental	[1] Tang 2012 cites Saw 1968	Table 1, p. 4, row 2 report
Lattice a	3.318 Å	0	(αSc) alloy: Zn 0	DFT	[1] Tang 2012	Table 1, p. 4, row 1 report
Lattice a	4.618 Å	0	(βSc) alloy: Zn 0	DFT	[1] Tang 2012	Table 1, p. 4, row 3 report
Lattice a	4.52 Å		(βSc) alloy: Zn 0	experimental	[1] Tang 2012 cites Haglund 1993	Table 1, p. 4, row 4 report
Lattice a	13.897 Å	0	Sc13Zn58 alloy: Zn 0.816901	DFT	[1] Tang 2012	Table 1, p. 4, row 13 report
Lattice a	13.741 Å		Sc13Zn58 alloy: Zn 0.816901	experimental	[1] Tang 2012 cites Palenzona 1997	Table 1, p. 4, row 14 report
Lattice a	13.784 Å	0	Sc3Zn17 alloy: Zn 0.85	DFT	[1] Tang 2012	Table 1, p. 4, row 15 report
Lattice a	13.79 Å		Sc3Zn17 alloy: Zn 0.85	experimental	[1] Tang 2012 cites Kripyakevich 1966	Table 1, p. 4, row 16 report
Lattice a	3.357 Å	0	ScZn alloy: Zn 0.5	DFT	[1] Tang 2012	Table 1, p. 4, row 7 report
Lattice a	3.35 Å		ScZn alloy: Zn 0.5	experimental	[1] Tang 2012 cites Laune 1963	Table 1, p. 4, row 8 report
Lattice a	8.806 Å		ScZn12 alloy: Zn 0.923077	experimental	[1] Tang 2012 cites Palenzona 1997	Table 1, p. 4, row 12 report
Lattice a	8.807 Å	0	ScZn12 alloy: Zn 0.923077	DFT	[1] Tang 2012	Table 1, p. 4, row 11 report
Lattice a	5.251 Å		ScZn2 alloy: Zn 0.666667	experimental	[1] Tang 2012 cites Xiaoyang 1996	Table 1, p. 4, row 10 report
Lattice a	5.277 Å	0	ScZn2 alloy: Zn 0.666667	DFT	[1] Tang 2012	Table 1, p. 4, row 9 report
Lattice c	5.265 Å		(αSc) alloy: Zn 0	experimental	[1] Tang 2012 cites Saw 1968	Table 1, p. 4, row 2 report
Lattice c	5.154 Å	0	(αSc) alloy: Zn 0	DFT	[1] Tang 2012	Table 1, p. 4, row 1 report
Lattice c	13.698 Å	0	Sc13Zn58 alloy: Zn 0.816901	DFT	[1] Tang 2012	Table 1, p. 4, row 13 report
Lattice c	13.632 Å		Sc13Zn58 alloy: Zn 0.816901	experimental	[1] Tang 2012 cites Palenzona 1997	Table 1, p. 4, row 14 report
Lattice c	5.158 Å		ScZn12 alloy: Zn 0.923077	experimental	[1] Tang 2012 cites Palenzona 1997	Table 1, p. 4, row 12 report
Lattice c	5.181 Å	0	ScZn12 alloy: Zn 0.923077	DFT	[1] Tang 2012	Table 1, p. 4, row 11 report
Lattice c	8.477 Å		ScZn2 alloy: Zn 0.666667	experimental	[1] Tang 2012 cites Xiaoyang 1996	Table 1, p. 4, row 10 report
Lattice c	8.481 Å	0	ScZn2 alloy: Zn 0.666667	DFT	[1] Tang 2012	Table 1, p. 4, row 9 report

Sources

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

C. Tang, P. Zhou, D.D. Zhao, X.M. Yuan, Y. Tang, P.S. Wang et al., Thermodynamic modeling of the Sc-Zn system coupled with first-principles calculation, J min metall B Metall 48, 123-130 (2012). doi:10.2298/jmmb110909017t

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}
}