# In–Na phases > In–Na system: 8 phases (tier A 5, tier C 2, liquid 1); 6 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/IN-NA.html · Markdown: https://data.orchid-project.org/phases/pages/IN-NA.md 8 phases (tier A 5, tier C 2, liquid 1); 6 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=IN-NA) · [full JSON](https://data.orchid-project.org/phases/systems/IN-NA.json) · [In–Na system page](https://data.orchid-project.org/systems/IN-NA.html) · [Markdown](https://data.orchid-project.org/phases/pages/IN-NA.md) · [field reference](https://data.orchid-project.org/phases/SCHEMA.md) Table: Phases of the In–Na system (8) | Phase | Structure | Basis | Stability (calculated) | Literature values | TDB models | |---|---|---|---|---:|---:| | [TETRAGONAL_A6](#phase-in-na-a6-tetragonal); _phase:in-na:a6-tetragonal_ | In · A6 · tI2 · I4/mmm (139) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–433.1 K, x(Na) 0–0.04843 | 4 | 1 | | [BCC_A2](#phase-in-na-bcc-a2); _phase:in-na:bcc-a2_ | W · A2 · cI2 · Im-3m (229) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–370.87 K, x(Na) 0.99989–1 | 6 | 1 | | [FCC_A1](#phase-in-na-fcc-a1); _phase:in-na:fcc-a1_ | Cu · A1 · cF4 · Fm-3m (225) | tier A: standard phase name | not stable in 1 calculated diagram(s) | 0 | 1 | | [HCP_A3](#phase-in-na-hcp-a3); _phase:in-na:hcp-a3_ | Mg · A3 · hP2 · P6_3/mmc (194) | tier A: standard phase name | not stable in 1 calculated diagram(s) | 0 | 1 | | [IN8NA5](#phase-in-na-in8na5); _phase:in-na:in8na5_ | In12Na7 · tP228 · P4_2/nmc (137) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 1 of 1 calculated diagram(s): 300–712.79 K, x(Na) 0.38462–0.38462 | 10 | 1 | | [INNA_B32](#phase-in-na-inna-b32); _phase:in-na:inna-b32_ | NaTl · B32 · cF16 · Fd-3m (227) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–618.58 K, x(Na) 0.5–0.5 | 11 | 1 | | [INNA3](#phase-in-na-inna3); _phase:in-na:inna3_ | Na2Tl · oC48 · C222_1 (20) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 1 of 1 calculated diagram(s): 370–559 K, x(Na) 0.75–0.75 | 2 | 1 | | [LIQUID](#phase-in-na-liquid); _phase:in-na:liquid_ | liquid | liquid | stable in 1 of 1 calculated diagram(s): 369.01–2500 K, x(Na) 0–1 | 20 | 1 | ## TETRAGONAL_A6 (In–Na) - Id: `phase:in-na:a6-tetragonal`; status `assigned` - Structure: In · A6 · tI2 · I4/mmm (139); type `st:a6-in-ti2`; tier A: standard phase name; confidence high - Stability: stable in 1 of 1 calculated diagram(s): 300–433.1 K, x(Na) 0–0.04843 - Literature: 4 values (4 accepted) from 1 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:in-na:a6-tetragonal) Names (4): _corpus: _corpus:phase:in-na:a6-tetragonal, corpus:phase:in-na:tetragonal-a6 _paper: _paper:10.1007/s11669-013-0258-6:(In) _tdb: _tdb:InNa-13Wan.tdb:TETRAGONAL_A6 ### TDB models of TETRAGONAL_A6 (1): PHASE and CONSTITUENT statements as written [InNa-13Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/InNa-13Wan.tdb): TETRAGONAL_A6, type code %, sha256 `6ddab60c74e5461a…` ~~~~text 42: PHASE TETRAGONAL_A6 % 1 1 ! 43: CONST TETRAGONAL_A6 : IN% NA : ! ~~~~ Example references (3 of 3; assessments first): - [doi:10.1007/s11669-013-0258-6](https://doi.org/10.1007/s11669-013-0258-6) Lei Wang, Yajun Liu, Jing Liu, Thermodynamic Basis and Related Phase Equilibria for In-Na and In-Ca Binary Systems, J. Phase Equilib. Diffus. 34, 447-452 (2013). _assessment that models this phase; reports values for this phase_ - [doi:10.1002/zaac.19703760107](https://doi.org/10.1002/zaac.19703760107) Renate Thümmel, Wilhelm Klemm, Das Verhalten der Alkalimetalle zu den Metallen der Gruppe III B, Zeitschrift anorg allge chemie 376, 44-63 (1970). _cited as the source of values for this phase_ - [doi:10.1016/0022-1902(69)80139-9](https://doi.org/10.1016/0022-1902%2869%2980139-9) G.J. Lamprecht, P. Crowther, The systems sodium-indium and lithium-indium, Journal of Inorganic and Nuclear Chemistry 31, 925-931 (1969). _cited as the source of values for this phase_ ## BCC_A2 (In–Na) - Id: `phase:in-na: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): 300–370.87 K, x(Na) 0.99989–1 - Literature: 6 values (6 accepted) from 1 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:in-na:bcc-a2) Names (3): _corpus: _corpus:phase:in-na:bcc-a2 _paper: _paper:10.1007/s11669-013-0258-6:βNa(bcc) _tdb: _tdb:InNa-13Wan.tdb:BCC_A2 ### TDB models of BCC_A2 (1): PHASE and CONSTITUENT statements as written [InNa-13Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/InNa-13Wan.tdb): BCC_A2, type code %B, sha256 `6ddab60c74e5461a…` ~~~~text 32: PHASE BCC_A2 %B 2 1 3 ! 33: CONST BCC_A2 : IN NA% : VA : ! ~~~~ Example references (3 of 3; assessments first): - [doi:10.1007/s11669-013-0258-6](https://doi.org/10.1007/s11669-013-0258-6) Lei Wang, Yajun Liu, Jing Liu, Thermodynamic Basis and Related Phase Equilibria for In-Na and In-Ca Binary Systems, J. Phase Equilib. Diffus. 34, 447-452 (2013). _assessment that models this phase; reports values for this phase_ - [doi:10.1002/zaac.19703760107](https://doi.org/10.1002/zaac.19703760107) Renate Thümmel, Wilhelm Klemm, Das Verhalten der Alkalimetalle zu den Metallen der Gruppe III B, Zeitschrift anorg allge chemie 376, 44-63 (1970). _cited as the source of values for this phase_ - [doi:10.1016/0022-1902(69)80139-9](https://doi.org/10.1016/0022-1902%2869%2980139-9) G.J. Lamprecht, P. Crowther, The systems sodium-indium and lithium-indium, Journal of Inorganic and Nuclear Chemistry 31, 925-931 (1969). _cited as the source of values for this phase_ ## FCC_A1 (In–Na) - Id: `phase:in-na:fcc-a1`; status `assigned` - Structure: Cu · A1 · cF4 · Fm-3m (225); type `st:a1-cu-cf4`; tier A: standard phase name; confidence high - Stability: not stable in 1 calculated diagram(s) - Literature: 0 values (0 accepted) from 0 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:in-na:fcc-a1) Names (2): _corpus: _corpus:phase:in-na:fcc-a1 _tdb: _tdb:InNa-13Wan.tdb:FCC_A1 ### TDB models of FCC_A1 (1): PHASE and CONSTITUENT statements as written [InNa-13Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/InNa-13Wan.tdb): FCC_A1, type code %A, sha256 `6ddab60c74e5461a…` ~~~~text 27: PHASE FCC_A1 %A 2 1 1 ! 28: CONST FCC_A1 : IN NA : VA : ! ~~~~ Example references (1 of 1; assessments first): - [doi:10.1007/s11669-013-0258-6](https://doi.org/10.1007/s11669-013-0258-6) Lei Wang, Yajun Liu, Jing Liu, Thermodynamic Basis and Related Phase Equilibria for In-Na and In-Ca Binary Systems, J. Phase Equilib. Diffus. 34, 447-452 (2013). _assessment that models this phase_ ## HCP_A3 (In–Na) - Id: `phase:in-na: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: not stable in 1 calculated diagram(s) - Literature: 0 values (0 accepted) from 0 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:in-na:hcp-a3) Names (2): _corpus: _corpus:phase:in-na:hcp-a3 _tdb: _tdb:InNa-13Wan.tdb:HCP_A3 ### TDB models of HCP_A3 (1): PHASE and CONSTITUENT statements as written [InNa-13Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/InNa-13Wan.tdb): HCP_A3, type code %A, sha256 `6ddab60c74e5461a…` ~~~~text 37: PHASE HCP_A3 %A 2 1 0.5 ! 38: CONST HCP_A3 : IN NA : VA : ! ~~~~ Example references (1 of 1; assessments first): - [doi:10.1007/s11669-013-0258-6](https://doi.org/10.1007/s11669-013-0258-6) Lei Wang, Yajun Liu, Jing Liu, Thermodynamic Basis and Related Phase Equilibria for In-Na and In-Ca Binary Systems, J. Phase Equilib. Diffus. 34, 447-452 (2013). _assessment that models this phase_ ## IN8NA5 (In–Na) - Id: `phase:in-na:in8na5`; status `assigned` - Structure: In12Na7 · tP228 · P4_2/nmc (137); type `st:in12na7-tp228`; 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_on_hull_entry_in_both, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system - Stoichiometry: In 0.6154, Na 0.3846 - Stability: stable in 1 of 1 calculated diagram(s): 300–712.79 K, x(Na) 0.38462–0.38462 - Literature: 10 values (10 accepted) from 1 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:in-na:in8na5) Names (3): _corpus: _corpus:phase:in-na:in8na5 _paper: _paper:10.1007/s11669-013-0258-6:In8Na5 _tdb: _tdb:InNa-13Wan.tdb:IN8NA5 ### TDB models of IN8NA5 (1): PHASE and CONSTITUENT statements as written [InNa-13Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/InNa-13Wan.tdb): IN8NA5, type code %, sha256 `6ddab60c74e5461a…` ~~~~text 47: PHASE IN8NA5 % 2 8 5 ! 48: CONST IN8NA5 : IN : NA : ! ~~~~ Example references (4 of 4; assessments first): - [doi:10.1007/s11669-013-0258-6](https://doi.org/10.1007/s11669-013-0258-6) Lei Wang, Yajun Liu, Jing Liu, Thermodynamic Basis and Related Phase Equilibria for In-Na and In-Ca Binary Systems, J. Phase Equilib. Diffus. 34, 447-452 (2013). _assessment that models this phase; reports values for this phase_ - [doi:10.1002/zaac.19703760107](https://doi.org/10.1002/zaac.19703760107) Renate Thümmel, Wilhelm Klemm, Das Verhalten der Alkalimetalle zu den Metallen der Gruppe III B, Zeitschrift anorg allge chemie 376, 44-63 (1970). _cited as the source of values for this phase_ - [doi:10.1016/0022-1902(69)80139-9](https://doi.org/10.1016/0022-1902%2869%2980139-9) G.J. Lamprecht, P. Crowther, The systems sodium-indium and lithium-indium, Journal of Inorganic and Nuclear Chemistry 31, 925-931 (1969). _cited as the source of values for this phase_ - [doi:10.1515/zpch-1933-2024](https://doi.org/10.1515/zpch-1933-2024) E. Zintl, S. Neumayr, Über den Gitterbau von NaIn und die Deformation der Atome in Legierungen, Zeitschrift für Physikalische Chemie 20B, 272-275 (1933). _cited as the source of values for this phase_ ## INNA_B32 (In–Na) - Id: `phase:in-na:inna-b32`; status `assigned` - Structure: NaTl · B32 · cF16 · Fd-3m (227); type `st:b32-natl-cf16`; tier A: standard phase name; confidence high - Stoichiometry: In 0.5000, Na 0.5000 - Stability: stable in 1 of 1 calculated diagram(s): 300–618.58 K, x(Na) 0.5–0.5 - Literature: 11 values (11 accepted) from 1 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:in-na:inna-b32) Names (3): _corpus: _corpus:phase:in-na:inna-b32 _paper: _paper:10.1007/s11669-013-0258-6:InNa _tdb: _tdb:InNa-13Wan.tdb:INNA_B32 ### TDB models of INNA_B32 (1): PHASE and CONSTITUENT statements as written [InNa-13Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/InNa-13Wan.tdb): INNA_B32, type code %, sha256 `6ddab60c74e5461a…` ~~~~text 52: PHASE INNA_B32 % 2 1 1 ! 53: CONST INNA_B32 : IN : NA : ! ~~~~ Example references (4 of 4; assessments first): - [doi:10.1007/s11669-013-0258-6](https://doi.org/10.1007/s11669-013-0258-6) Lei Wang, Yajun Liu, Jing Liu, Thermodynamic Basis and Related Phase Equilibria for In-Na and In-Ca Binary Systems, J. Phase Equilib. Diffus. 34, 447-452 (2013). _assessment that models this phase; reports values for this phase_ - [doi:10.1002/zaac.19703760107](https://doi.org/10.1002/zaac.19703760107) Renate Thümmel, Wilhelm Klemm, Das Verhalten der Alkalimetalle zu den Metallen der Gruppe III B, Zeitschrift anorg allge chemie 376, 44-63 (1970). _cited as the source of values for this phase_ - [doi:10.1016/0022-1902(69)80139-9](https://doi.org/10.1016/0022-1902%2869%2980139-9) G.J. Lamprecht, P. Crowther, The systems sodium-indium and lithium-indium, Journal of Inorganic and Nuclear Chemistry 31, 925-931 (1969). _cited as the source of values for this phase_ - [doi:10.1515/zpch-1933-2024](https://doi.org/10.1515/zpch-1933-2024) E. Zintl, S. Neumayr, Über den Gitterbau von NaIn und die Deformation der Atome in Legierungen, Zeitschrift für Physikalische Chemie 20B, 272-275 (1933). _cited as the source of values for this phase_ ## INNA3 (In–Na) - Id: `phase:in-na:inna3`; status `assigned` - Structure: Na2Tl · oC48 · C222_1 (20); type `st:na2tl-oc48`; 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_on_hull_entry_in_both, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system - Stoichiometry: In 0.2500, Na 0.7500 - Stability: stable in 1 of 1 calculated diagram(s): 370–559 K, x(Na) 0.75–0.75 - Literature: 2 values (2 accepted) from 1 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:in-na:inna3) Names (3): _corpus: _corpus:phase:in-na:inna3 _paper: _paper:10.1007/s11669-013-0258-6:InNa3 _tdb: _tdb:InNa-13Wan.tdb:INNA3 ### TDB models of INNA3 (1): PHASE and CONSTITUENT statements as written [InNa-13Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/InNa-13Wan.tdb): INNA3, type code %, sha256 `6ddab60c74e5461a…` ~~~~text 57: PHASE INNA3 % 2 1 3 ! 58: CONST INNA3 : IN : NA : ! ~~~~ Example references (1 of 1; assessments first): - [doi:10.1007/s11669-013-0258-6](https://doi.org/10.1007/s11669-013-0258-6) Lei Wang, Yajun Liu, Jing Liu, Thermodynamic Basis and Related Phase Equilibria for In-Na and In-Ca Binary Systems, J. Phase Equilib. Diffus. 34, 447-452 (2013). _assessment that models this phase; reports values for this phase_ ## LIQUID (In–Na) - Id: `phase:in-na:liquid`; status `assigned` - Structure: liquid; type `st:liquid`; liquid; confidence high - Stability: stable in 1 of 1 calculated diagram(s): 369.01–2500 K, x(Na) 0–1 - Literature: 20 values (20 accepted) from 1 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:in-na:liquid) Names (4): _corpus: _corpus:phase:in-na:liquid _paper: _paper:10.1007/s11669-013-0258-6:L, paper:10.1007/s11669-013-0258-6:liquid _tdb: _tdb:InNa-13Wan.tdb:LIQUID ### TDB models of LIQUID (1): PHASE and CONSTITUENT statements as written [InNa-13Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/InNa-13Wan.tdb): LIQUID, type code %, sha256 `6ddab60c74e5461a…` ~~~~text 22: PHASE LIQUID:L % 1 1 ! 23: CONST LIQUID:L : IN NA : ! ~~~~ Example references (4 of 4; assessments first): - [doi:10.1007/s11669-013-0258-6](https://doi.org/10.1007/s11669-013-0258-6) Lei Wang, Yajun Liu, Jing Liu, Thermodynamic Basis and Related Phase Equilibria for In-Na and In-Ca Binary Systems, J. Phase Equilib. Diffus. 34, 447-452 (2013). _assessment that models this phase; reports values for this phase_ - [doi:10.1002/zaac.19703760107](https://doi.org/10.1002/zaac.19703760107) Renate Thümmel, Wilhelm Klemm, Das Verhalten der Alkalimetalle zu den Metallen der Gruppe III B, Zeitschrift anorg allge chemie 376, 44-63 (1970). _cited as the source of values for this phase_ - [doi:10.1016/0022-1902(69)80139-9](https://doi.org/10.1016/0022-1902%2869%2980139-9) G.J. Lamprecht, P. Crowther, The systems sodium-indium and lithium-indium, Journal of Inorganic and Nuclear Chemistry 31, 925-931 (1969). _cited as the source of values for this phase_ - [doi:10.1515/zpch-1933-2024](https://doi.org/10.1515/zpch-1933-2024) E. Zintl, S. Neumayr, Über den Gitterbau von NaIn und die Deformation der Atome in Legierungen, Zeitschrift für Physikalische Chemie 20B, 272-275 (1933). _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).