# Sr–Zn phases > Sr–Zn system: 9 phases (tier A 6, tier C 2, liquid 1); 9 stable in a calculated diagram in the ORCHID phase registry, with names, structure type when the stored evidence supports an assignment under the stated tier rules, calculated stability, verbatim TDB PHASE/CONSTITUENT statements and example references. HTML: https://data.orchid-project.org/phases/pages/SR-ZN.html · Markdown: https://data.orchid-project.org/phases/pages/SR-ZN.md 9 phases (tier A 6, tier C 2, liquid 1); 9 stable in a calculated diagram. Structure types are assigned only when the stored evidence supports an assignment under the stated tier rules (tier A: standard phase name; tier B: unique Materials Project + OQMD on-hull match, DFT-supported; tier C: one structure stated by the assessment's crystallographic table, assessor-stated); other phases list candidates and are marked needs_review. Stability is from phase diagrams calculated with pycalphad from the SGTE binary collection (evidence class: model). Data: [interactive registry](https://orchid-project.org/phases/?q=SR-ZN) · [full JSON](https://data.orchid-project.org/phases/systems/SR-ZN.json) · [Sr–Zn system page](https://data.orchid-project.org/systems/SR-ZN.html) · [Markdown](https://data.orchid-project.org/phases/pages/SR-ZN.md) · [field reference](https://data.orchid-project.org/phases/SCHEMA.md) Table: Phases of the Sr–Zn system (9) | Phase | Structure | Basis | Stability (calculated) | Literature values | TDB models | |---|---|---|---|---:|---:| | [BCC_A2](#phase-sr-zn-bcc-a2); _phase:sr-zn:bcc-a2_ | W · A2 · cI2 · Im-3m (229) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 815.68–1050 K, x(Zn) 0–0.0059 | 1 | 1 | | [FCC_A1](#phase-sr-zn-fcc-a1); _phase:sr-zn:fcc-a1_ | Cu · A1 · cF4 · Fm-3m (225) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–820 K, x(Zn) 0–0.00487 | 3 | 1 | | [HCP_A3](#phase-sr-zn-hcp-a3); _phase:sr-zn:hcp-a3_ | Mg · A3 · hP2 · P6_3/mmc (194) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–692.68 K, x(Zn) 1–1 | 1 | 1 | | [LIQUID](#phase-sr-zn-liquid); _phase:sr-zn:liquid_ | liquid | liquid | stable in 1 of 1 calculated diagram(s): 642.5–2500 K, x(Zn) 0–1 | 27 | 1 | | [SRZN_B27](#phase-sr-zn-srzn-b27); _phase:sr-zn:srzn-b27_ | FeB · B27 · oP8 · Pnma (62) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–705.53 K, x(Zn) 0.5–0.5 | 4 | 1 | | [SRZN13_D23](#phase-sr-zn-srzn13-d23); _phase:sr-zn:srzn13-d23_ | NaZn13 · D2_3 · cF112 · Fm-3c (226) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–1103.08 K, x(Zn) 0.92857–0.92857 | 5 | 1 | | [SRZN2](#phase-sr-zn-srzn2); _phase:sr-zn:srzn2_ | Hg2K · oI12 · Imma (74) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 1 of 1 calculated diagram(s): 300–847.1 K, x(Zn) 0.66667–0.66667 | 6 | 1 | | [SRZN5_ALPHA](#phase-sr-zn-srzn5-alpha); _phase:sr-zn:srzn5-alpha_ | SrZn5 · oP24 · Pnma (62) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 1 of 1 calculated diagram(s): 300–896.55 K, x(Zn) 0.83333–0.83333 | 4 | 1 | | [SRZN5_D2D](#phase-sr-zn-srzn5-d2d); _phase:sr-zn:srzn5-d2d_ | CaCu5 · D2_d · hP6 · P6/mmm (191) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 896.55–923.04 K, x(Zn) 0.83333–0.83333 | 4 | 1 | ## BCC_A2 (Sr–Zn) - Id: `phase:sr-zn:bcc-a2`; status `assigned` - Structure: W · A2 · cI2 · Im-3m (229); type `st:a2-w-ci2`; tier A: standard phase name; confidence high - Stability: stable in 1 of 1 calculated diagram(s): 815.68–1050 K, x(Zn) 0–0.0059 - Literature: 1 values (1 accepted) from 1 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:sr-zn:bcc-a2) Names (3): _corpus: _corpus:phase:sr-zn:bcc-a2 _paper: _paper:10.1361/105497103770330325:bcc _tdb: _tdb:SrZn-03Zho.tdb:BCC_A2 ### TDB models of BCC_A2 (1): PHASE and CONSTITUENT statements as written [SrZn-03Zho.tdb](https://orchid-project.org/data/databases/sgte-binary/SrZn-03Zho.tdb): BCC_A2, type code %B, sha256 `76bc25ec714bc201…` ~~~~text 34: PHASE BCC_A2 %B 2 1 3 ! 35: CONST BCC_A2 : SR ZN : VA : ! ~~~~ Example references (1 of 1; assessments first): - [doi:10.1361/105497103770330325](https://doi.org/10.1361/105497103770330325) Yu Zhong, Koray Ozturk, Zi-Kui Liu, Thermodynamic modeling of the Ca-Sr-Zn ternary system, JPE 24, 340-346 (2003). _assessment that models this phase; reports values for this phase_ ## FCC_A1 (Sr–Zn) - Id: `phase:sr-zn:fcc-a1`; status `assigned` - Structure: Cu · A1 · cF4 · Fm-3m (225); type `st:a1-cu-cf4`; tier A: standard phase name; confidence high - Stability: stable in 1 of 1 calculated diagram(s): 300–820 K, x(Zn) 0–0.00487 - Literature: 3 values (3 accepted) from 1 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:sr-zn:fcc-a1) Names (3): _corpus: _corpus:phase:sr-zn:fcc-a1 _paper: _paper:10.1361/105497103770330325:fcc _tdb: _tdb:SrZn-03Zho.tdb:FCC_A1 ### TDB models of FCC_A1 (1): PHASE and CONSTITUENT statements as written [SrZn-03Zho.tdb](https://orchid-project.org/data/databases/sgte-binary/SrZn-03Zho.tdb): FCC_A1, type code %A, sha256 `76bc25ec714bc201…` ~~~~text 29: PHASE FCC_A1 %A 2 1 1 ! 30: CONST FCC_A1 : SR ZN : VA : ! ~~~~ Example references (2 of 2; assessments first): - [doi:10.1361/105497103770330325](https://doi.org/10.1361/105497103770330325) Yu Zhong, Koray Ozturk, Zi-Kui Liu, Thermodynamic modeling of the Ca-Sr-Zn ternary system, JPE 24, 340-346 (2003). _assessment that models this phase; reports values for this phase_ - [doi:10.1016/0022-5088(83)90226-6](https://doi.org/10.1016/0022-5088%2883%2990226-6) G. Bruzzone, F. Merlo, The Sr-Zn system, Journal of the Less Common Metals 92, 75-79 (1983). _cited as the source of values for this phase_ ## HCP_A3 (Sr–Zn) - Id: `phase:sr-zn:hcp-a3`; status `assigned` - Structure: Mg · A3 · hP2 · P6_3/mmc (194); type `st:a3-mg-hp2`; tier A: standard phase name; confidence high - Stability: stable in 1 of 1 calculated diagram(s): 300–692.68 K, x(Zn) 1–1 - Literature: 1 values (1 accepted) from 1 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:sr-zn:hcp-a3) Names (3): _corpus: _corpus:phase:sr-zn:hcp-a3 _paper: _paper:10.1361/105497103770330325:hcp _tdb: _tdb:SrZn-03Zho.tdb:HCP_A3 ### TDB models of HCP_A3 (1): PHASE and CONSTITUENT statements as written [SrZn-03Zho.tdb](https://orchid-project.org/data/databases/sgte-binary/SrZn-03Zho.tdb): HCP_A3, type code %A, sha256 `76bc25ec714bc201…` ~~~~text 39: PHASE HCP_A3 %A 2 1 0.5 ! 40: CONST HCP_A3 : SR ZN : VA : ! ~~~~ Example references (1 of 1; assessments first): - [doi:10.1361/105497103770330325](https://doi.org/10.1361/105497103770330325) Yu Zhong, Koray Ozturk, Zi-Kui Liu, Thermodynamic modeling of the Ca-Sr-Zn ternary system, JPE 24, 340-346 (2003). _assessment that models this phase; reports values for this phase_ ## LIQUID (Sr–Zn) - Id: `phase:sr-zn:liquid`; status `assigned` - Structure: liquid; type `st:liquid`; liquid; confidence high - Stability: stable in 1 of 1 calculated diagram(s): 642.5–2500 K, x(Zn) 0–1 - Literature: 27 values (27 accepted) from 1 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:sr-zn:liquid) Names (3): _corpus: _corpus:phase:sr-zn:liquid _paper: _paper:10.1361/105497103770330325:L _tdb: _tdb:SrZn-03Zho.tdb:LIQUID ### TDB models of LIQUID (1): PHASE and CONSTITUENT statements as written [SrZn-03Zho.tdb](https://orchid-project.org/data/databases/sgte-binary/SrZn-03Zho.tdb): LIQUID, type code %, sha256 `76bc25ec714bc201…` ~~~~text 24: PHASE LIQUID:L % 1 1 ! 25: CONST LIQUID:L : SR ZN : ! ~~~~ Example references (2 of 2; assessments first): - [doi:10.1361/105497103770330325](https://doi.org/10.1361/105497103770330325) Yu Zhong, Koray Ozturk, Zi-Kui Liu, Thermodynamic modeling of the Ca-Sr-Zn ternary system, JPE 24, 340-346 (2003). _assessment that models this phase; reports values for this phase_ - [doi:10.1016/0022-5088(83)90226-6](https://doi.org/10.1016/0022-5088%2883%2990226-6) G. Bruzzone, F. Merlo, The Sr-Zn system, Journal of the Less Common Metals 92, 75-79 (1983). _cited as the source of values for this phase_ ## SRZN_B27 (Sr–Zn) - Id: `phase:sr-zn:srzn-b27`; status `assigned` - Structure: FeB · B27 · oP8 · Pnma (62); type `st:b27-feb-op8`; tier A: standard phase name; confidence high - Caveat: DFT agrees: on-hull mp-aaaaasvk and oqmd-647530, space group 62 - Stoichiometry: Sr 0.5000, Zn 0.5000 - Stability: stable in 1 of 1 calculated diagram(s): 300–705.53 K, x(Zn) 0.5–0.5 - Literature: 4 values (4 accepted) from 1 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:sr-zn:srzn-b27) Names (5): _corpus: _corpus:phase:sr-zn:srzn-b27 _mp: _mp:mp-aaaaasvk _oqmd: _oqmd:oqmd-647530 _paper: _paper:10.1361/105497103770330325:SrZn _tdb: _tdb:SrZn-03Zho.tdb:SRZN_B27 ### TDB models of SRZN_B27 (1): PHASE and CONSTITUENT statements as written [SrZn-03Zho.tdb](https://orchid-project.org/data/databases/sgte-binary/SrZn-03Zho.tdb): SRZN_B27, type code %, sha256 `76bc25ec714bc201…` ~~~~text 44: PHASE SRZN_B27 % 2 1 1 ! 45: CONST SRZN_B27 : SR : ZN : ! ~~~~ Example references (2 of 2; assessments first): - [doi:10.1361/105497103770330325](https://doi.org/10.1361/105497103770330325) Yu Zhong, Koray Ozturk, Zi-Kui Liu, Thermodynamic modeling of the Ca-Sr-Zn ternary system, JPE 24, 340-346 (2003). _assessment that models this phase; reports values for this phase_ - [doi:10.1016/0022-5088(83)90226-6](https://doi.org/10.1016/0022-5088%2883%2990226-6) G. Bruzzone, F. Merlo, The Sr-Zn system, Journal of the Less Common Metals 92, 75-79 (1983). _cited as the source of values for this phase_ ## SRZN13_D23 (Sr–Zn) - Id: `phase:sr-zn:srzn13-d23`; status `assigned` - Structure: NaZn13 · D2_3 · cF112 · Fm-3c (226); type `st:d2-3-nazn13-cf112`; tier A: standard phase name; confidence high - Caveat: DFT agrees: on-hull mp-aaabmhdj and oqmd-31093, space group 226 - Stoichiometry: Sr 0.0714, Zn 0.9286 - Stability: stable in 1 of 1 calculated diagram(s): 300–1103.08 K, x(Zn) 0.92857–0.92857 - Literature: 5 values (5 accepted) from 1 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:sr-zn:srzn13-d23) Names (5): _corpus: _corpus:phase:sr-zn:srzn13-d23 _mp: _mp:mp-aaabmhdj _oqmd: _oqmd:oqmd-31093 _paper: _paper:10.1361/105497103770330325:SrZn13 _tdb: _tdb:SrZn-03Zho.tdb:SRZN13_D23 ### TDB models of SRZN13_D23 (1): PHASE and CONSTITUENT statements as written [SrZn-03Zho.tdb](https://orchid-project.org/data/databases/sgte-binary/SrZn-03Zho.tdb): SRZN13_D23, type code %, sha256 `76bc25ec714bc201…` ~~~~text 64: PHASE SRZN13_D23 % 2 1 13 ! 65: CONST SRZN13_D23 : SR : ZN : ! ~~~~ Example references (2 of 2; assessments first): - [doi:10.1361/105497103770330325](https://doi.org/10.1361/105497103770330325) Yu Zhong, Koray Ozturk, Zi-Kui Liu, Thermodynamic modeling of the Ca-Sr-Zn ternary system, JPE 24, 340-346 (2003). _assessment that models this phase; reports values for this phase_ - [doi:10.1016/0022-5088(83)90226-6](https://doi.org/10.1016/0022-5088%2883%2990226-6) G. Bruzzone, F. Merlo, The Sr-Zn system, Journal of the Less Common Metals 92, 75-79 (1983). _cited as the source of values for this phase_ ## SRZN2 (Sr–Zn) - Id: `phase:sr-zn:srzn2`; status `assigned` - Structure: Hg2K · oI12 · Imma (74); type `st:hg2k-oi12`; tier C: assessor-stated (Hallstedt 2025 crystallographic table); confidence assessor-stated - Structure source: B. Hallstedt, The SGTE collection of binary datasets, Calphad 89 (2025) 102833, supplementary crystallographic table (mmc2) [doi:10.1016/j.calphad.2025.102833](https://doi.org/10.1016/j.calphad.2025.102833) - Caveat: not certain from the name or DFT alone (mp_oqmd_space_groups_differ, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system - Stoichiometry: Sr 0.3333, Zn 0.6667 - Stability: stable in 1 of 1 calculated diagram(s): 300–847.1 K, x(Zn) 0.66667–0.66667 - Literature: 6 values (6 accepted) from 1 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:sr-zn:srzn2) Names (3): _corpus: _corpus:phase:sr-zn:srzn2 _paper: _paper:10.1361/105497103770330325:SrZn2 _tdb: _tdb:SrZn-03Zho.tdb:SRZN2 ### TDB models of SRZN2 (1): PHASE and CONSTITUENT statements as written [SrZn-03Zho.tdb](https://orchid-project.org/data/databases/sgte-binary/SrZn-03Zho.tdb): SRZN2, type code %, sha256 `76bc25ec714bc201…` ~~~~text 49: PHASE SRZN2 % 2 1 2 ! 50: CONST SRZN2 : SR : ZN : ! ~~~~ Example references (2 of 2; assessments first): - [doi:10.1361/105497103770330325](https://doi.org/10.1361/105497103770330325) Yu Zhong, Koray Ozturk, Zi-Kui Liu, Thermodynamic modeling of the Ca-Sr-Zn ternary system, JPE 24, 340-346 (2003). _assessment that models this phase; reports values for this phase_ - [doi:10.1016/0022-5088(83)90226-6](https://doi.org/10.1016/0022-5088%2883%2990226-6) G. Bruzzone, F. Merlo, The Sr-Zn system, Journal of the Less Common Metals 92, 75-79 (1983). _cited as the source of values for this phase_ ## SRZN5_ALPHA (Sr–Zn) - Id: `phase:sr-zn:srzn5-alpha`; status `assigned` - Structure: SrZn5 · oP24 · Pnma (62); type `st:srzn5-op24`; tier C: assessor-stated (Hallstedt 2025 crystallographic table); confidence assessor-stated - Structure source: B. Hallstedt, The SGTE collection of binary datasets, Calphad 89 (2025) 102833, supplementary crystallographic table (mmc2) [doi:10.1016/j.calphad.2025.102833](https://doi.org/10.1016/j.calphad.2025.102833) - Caveat: not certain from the name or DFT alone (no_structure_token, polymorph_family:other phases of this system have the same composition); structure as stated in the SGTE crystallographic table for this phase name and system - Stoichiometry: Sr 0.1667, Zn 0.8333 - Stability: stable in 1 of 1 calculated diagram(s): 300–896.55 K, x(Zn) 0.83333–0.83333 - Literature: 4 values (4 accepted) from 1 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:sr-zn:srzn5-alpha) Names (3): _corpus: _corpus:phase:sr-zn:srzn5-alpha _paper: _paper:10.1361/105497103770330325:αSrZn5 _tdb: _tdb:SrZn-03Zho.tdb:SRZN5_ALPHA ### TDB models of SRZN5_ALPHA (1): PHASE and CONSTITUENT statements as written [SrZn-03Zho.tdb](https://orchid-project.org/data/databases/sgte-binary/SrZn-03Zho.tdb): SRZN5_ALPHA, type code %, sha256 `76bc25ec714bc201…` ~~~~text 54: PHASE SRZN5_ALPHA % 2 1 5 ! 55: CONST SRZN5_ALPHA : SR : ZN : ! ~~~~ Example references (2 of 2; assessments first): - [doi:10.1361/105497103770330325](https://doi.org/10.1361/105497103770330325) Yu Zhong, Koray Ozturk, Zi-Kui Liu, Thermodynamic modeling of the Ca-Sr-Zn ternary system, JPE 24, 340-346 (2003). _assessment that models this phase; reports values for this phase_ - [doi:10.1016/0022-5088(83)90226-6](https://doi.org/10.1016/0022-5088%2883%2990226-6) G. Bruzzone, F. Merlo, The Sr-Zn system, Journal of the Less Common Metals 92, 75-79 (1983). _cited as the source of values for this phase_ ## SRZN5_D2D (Sr–Zn) - Id: `phase:sr-zn:srzn5-d2d`; status `assigned` - Structure: CaCu5 · D2_d · hP6 · P6/mmm (191); type `st:d2-d-cacu5-hp6`; tier A: standard phase name; confidence high - Stoichiometry: Sr 0.1667, Zn 0.8333 - Stability: stable in 1 of 1 calculated diagram(s): 896.55–923.04 K, x(Zn) 0.83333–0.83333 - Literature: 4 values (4 accepted) from 1 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:sr-zn:srzn5-d2d) Names (3): _corpus: _corpus:phase:sr-zn:srzn5-d2d _paper: _paper:10.1361/105497103770330325:βSrZn5 _tdb: _tdb:SrZn-03Zho.tdb:SRZN5_D2D ### TDB models of SRZN5_D2D (1): PHASE and CONSTITUENT statements as written [SrZn-03Zho.tdb](https://orchid-project.org/data/databases/sgte-binary/SrZn-03Zho.tdb): SRZN5_D2D, type code %, sha256 `76bc25ec714bc201…` ~~~~text 59: PHASE SRZN5_D2D % 2 1 5 ! 60: CONST SRZN5_D2D : SR : ZN : ! ~~~~ Example references (2 of 2; assessments first): - [doi:10.1361/105497103770330325](https://doi.org/10.1361/105497103770330325) Yu Zhong, Koray Ozturk, Zi-Kui Liu, Thermodynamic modeling of the Ca-Sr-Zn ternary system, JPE 24, 340-346 (2003). _assessment that models this phase; reports values for this phase_ - [doi:10.1016/0022-5088(83)90226-6](https://doi.org/10.1016/0022-5088%2883%2990226-6) G. Bruzzone, F. Merlo, The Sr-Zn system, Journal of the Less Common Metals 92, 75-79 (1983). _cited as the source of values for this phase_ ## Please cite - R. Arróyave, J. Saal, D. Shin, ORCHID-Registry: phase registry of binary systems (version 2026.10; Version 1, machine-extracted), Zenodo (2026). https://doi.org/10.5281/zenodo.23735970 - 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 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); the original source of every value you use (paper_citation / paper_doi, and cited_dois for values the paper cites from earlier work). 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_phase_registry_2026, author = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon}, title = {{ORCHID-Registry: phase registry of binary systems}}, version = {2026.10}, publisher = {Zenodo}, year = {2026}, doi = {10.5281/zenodo.23735970}, url = {https://doi.org/10.5281/zenodo.23735970}, 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 the ORCHID phase registry and the sources named on the page (TDB assessments, Hallstedt 2025, Materials Project, OQMD). TDB statements are quoted as written; parameter expressions are not reproduced. Field reference: [SCHEMA.md](https://data.orchid-project.org/phases/SCHEMA.md). Machine-readable guide: [llms.txt](https://data.orchid-project.org/llms.txt).