Cd–Na phases

6 phases (tier A 4, tier C 1, liquid 1); 5 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 · full JSON · Cd–Na system page · Markdown · field reference

Phases of the Cd–Na system (6)
Phase	Structure	Basis	Stability (calculated)	Literature values	TDB models
BCC_A2 phase:cd-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) 1–1	2	1
CD11NA2_D8C phase:cd-na:cd11na2-d8c	Mg2Zn11 · D8_c · cP39 · Pm-3 (200)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–631.51 K, x(Na) 0.15385–0.15385	8	1
CD2NA phase:cd-na:cd2na	Cd2Na · cF1192 · Fd-3m (227)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 1 of 1 calculated diagram(s): 300–653.87 K, x(Na) 0.33333–0.33333	10	1
FCC_A1 phase:cd-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:cd-na:hcp-a3	Mg · A3 · hP2 · P6_3/mmc (194)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–605.96 K, x(Na) 0–0	3	1
LIQUID phase:cd-na:liquid	liquid	liquid	stable in 1 of 1 calculated diagram(s): 368.4–2500 K, x(Na) 0–1	16	1

BCC_A2 (Cd–Na)

Id: phase:cd-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) 1–1
Literature: 2 values (2 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:cd-na:bcc-a2
paper: paper:10.1016/j.jallcom.2008.05.106:bcc
tdb: tdb:CdNa-09Liu.tdb:BCC_A2

TDB models of BCC_A2 (1): PHASE and CONSTITUENT statements as written

CdNa-09Liu.tdb: BCC_A2, type code %B, sha256 4bd4b64380b14098…

32: PHASE BCC_A2 %B 2 1 3 !
33: CONST BCC_A2 : CD NA% : VA : !

Example references (3 of 3; assessments first):

doi:10.1016/j.jallcom.2008.05.106 Yajun Liu, Di Yu, Yang Ge, Thermodynamic optimization of the Cd–Na and Cd–Tl binary systems, Journal of Alloys and Compounds 473, 60-64 (2009).
assessment that models this phase; reports values for this phase
doi:10.1002/zaac.19060500118 C. H. Mathewson, Metallographische Mitteilung aus dem Institut für anorganische Chemie der Universität Göttingen. XXXIV. Natrium‐Blei‐, Natrium‐Kadmium‐, Natrium‐Wismut‐ und Natrium‐Antimonlegierungen, Z. Anorg. Chem. 50, 171-198 (1906).
cited as the source of values for this phase
doi:10.1002/zaac.19070520117 N. S. Kurnakow, A. N. Kusnetzow, Cadmide des Natriums, Z. Anorg. Chem. 52, 173-185 (1907).
cited as the source of values for this phase

CD11NA2_D8C (Cd–Na)

Id: phase:cd-na:cd11na2-d8c; status assigned
Structure: Mg2Zn11 · D8_c · cP39 · Pm-3 (200); type st:d8-c-mg2zn11-cp39; tier A: standard phase name; confidence high
Stoichiometry: Cd 0.8462, Na 0.1538
Stability: stable in 1 of 1 calculated diagram(s): 300–631.51 K, x(Na) 0.15385–0.15385
Literature: 8 values (8 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:cd-na:cd11na2-d8c
paper: paper:10.1016/j.jallcom.2008.05.106:Cd11Na2
tdb: tdb:CdNa-09Liu.tdb:CD11NA2_D8C

TDB models of CD11NA2_D8C (1): PHASE and CONSTITUENT statements as written

CdNa-09Liu.tdb: CD11NA2_D8C, type code %, sha256 4bd4b64380b14098…

42: PHASE CD11NA2_D8C % 2 11 2 !
43: CONST CD11NA2_D8C : CD : NA : !

Example references (3 of 3; assessments first):

doi:10.1016/j.jallcom.2008.05.106 Yajun Liu, Di Yu, Yang Ge, Thermodynamic optimization of the Cd–Na and Cd–Tl binary systems, Journal of Alloys and Compounds 473, 60-64 (2009).
assessment that models this phase; reports values for this phase
doi:10.1002/zaac.19060500118 C. H. Mathewson, Metallographische Mitteilung aus dem Institut für anorganische Chemie der Universität Göttingen. XXXIV. Natrium‐Blei‐, Natrium‐Kadmium‐, Natrium‐Wismut‐ und Natrium‐Antimonlegierungen, Z. Anorg. Chem. 50, 171-198 (1906).
cited as the source of values for this phase
doi:10.1002/zaac.19070520117 N. S. Kurnakow, A. N. Kusnetzow, Cadmide des Natriums, Z. Anorg. Chem. 52, 173-185 (1907).
cited as the source of values for this phase

CD2NA (Cd–Na)

Id: phase:cd-na:cd2na; status assigned
Structure: Cd2Na · cF1192 · Fd-3m (227); type st:cd2na-cf1192; 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
Caveat: not certain from the name or DFT alone (no_on_hull_entry_in_mp, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: Cd 0.6667, Na 0.3333
Stability: stable in 1 of 1 calculated diagram(s): 300–653.87 K, x(Na) 0.33333–0.33333
Literature: 10 values (10 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:cd-na:cd2na
paper: paper:10.1016/j.jallcom.2008.05.106:Cd2Na
tdb: tdb:CdNa-09Liu.tdb:CD2NA

TDB models of CD2NA (1): PHASE and CONSTITUENT statements as written

CdNa-09Liu.tdb: CD2NA, type code %, sha256 4bd4b64380b14098…

47: PHASE CD2NA % 2 2 1 !
48: CONST CD2NA : CD : NA : !

Example references (3 of 3; assessments first):

doi:10.1016/j.jallcom.2008.05.106 Yajun Liu, Di Yu, Yang Ge, Thermodynamic optimization of the Cd–Na and Cd–Tl binary systems, Journal of Alloys and Compounds 473, 60-64 (2009).
assessment that models this phase; reports values for this phase
doi:10.1002/zaac.19060500118 C. H. Mathewson, Metallographische Mitteilung aus dem Institut für anorganische Chemie der Universität Göttingen. XXXIV. Natrium‐Blei‐, Natrium‐Kadmium‐, Natrium‐Wismut‐ und Natrium‐Antimonlegierungen, Z. Anorg. Chem. 50, 171-198 (1906).
cited as the source of values for this phase
doi:10.1002/zaac.19070520117 N. S. Kurnakow, A. N. Kusnetzow, Cadmide des Natriums, Z. Anorg. Chem. 52, 173-185 (1907).
cited as the source of values for this phase

FCC_A1 (Cd–Na)

Id: phase:cd-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

Names (2): corpus: corpus:phase:cd-na:fcc-a1
tdb: tdb:CdNa-09Liu.tdb:FCC_A1

TDB models of FCC_A1 (1): PHASE and CONSTITUENT statements as written

CdNa-09Liu.tdb: FCC_A1, type code %A, sha256 4bd4b64380b14098…

27: PHASE FCC_A1 %A 2 1 1 !
28: CONST FCC_A1 : CD NA : VA : !

Example references (1 of 1; assessments first):

doi:10.1016/j.jallcom.2008.05.106 Yajun Liu, Di Yu, Yang Ge, Thermodynamic optimization of the Cd–Na and Cd–Tl binary systems, Journal of Alloys and Compounds 473, 60-64 (2009).
assessment that models this phase

HCP_A3 (Cd–Na)

Id: phase:cd-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: stable in 1 of 1 calculated diagram(s): 300–605.96 K, x(Na) 0–0
Literature: 3 values (3 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:cd-na:hcp-a3
paper: paper:10.1016/j.jallcom.2008.05.106:hcp
tdb: tdb:CdNa-09Liu.tdb:HCP_A3

TDB models of HCP_A3 (1): PHASE and CONSTITUENT statements as written

CdNa-09Liu.tdb: HCP_A3, type code %A, sha256 4bd4b64380b14098…

37: PHASE HCP_A3 %A 2 1 0.5 !
38: CONST HCP_A3 : CD% NA : VA : !

Example references (3 of 3; assessments first):

doi:10.1016/j.jallcom.2008.05.106 Yajun Liu, Di Yu, Yang Ge, Thermodynamic optimization of the Cd–Na and Cd–Tl binary systems, Journal of Alloys and Compounds 473, 60-64 (2009).
assessment that models this phase; reports values for this phase
doi:10.1002/zaac.19060500118 C. H. Mathewson, Metallographische Mitteilung aus dem Institut für anorganische Chemie der Universität Göttingen. XXXIV. Natrium‐Blei‐, Natrium‐Kadmium‐, Natrium‐Wismut‐ und Natrium‐Antimonlegierungen, Z. Anorg. Chem. 50, 171-198 (1906).
cited as the source of values for this phase
doi:10.1002/zaac.19070520117 N. S. Kurnakow, A. N. Kusnetzow, Cadmide des Natriums, Z. Anorg. Chem. 52, 173-185 (1907).
cited as the source of values for this phase

LIQUID (Cd–Na)

Id: phase:cd-na:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 1 of 1 calculated diagram(s): 368.4–2500 K, x(Na) 0–1
Literature: 16 values (16 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:cd-na:liquid
paper: paper:10.1016/j.jallcom.2008.05.106:L, paper:10.1016/j.jallcom.2008.05.106:liquid
tdb: tdb:CdNa-09Liu.tdb:LIQUID

TDB models of LIQUID (1): PHASE and CONSTITUENT statements as written

CdNa-09Liu.tdb: LIQUID, type code %, sha256 4bd4b64380b14098…

22: PHASE LIQUID:L % 1 1 !
23: CONST LIQUID:L : CD NA : !

Example references (3 of 3; assessments first):

doi:10.1016/j.jallcom.2008.05.106 Yajun Liu, Di Yu, Yang Ge, Thermodynamic optimization of the Cd–Na and Cd–Tl binary systems, Journal of Alloys and Compounds 473, 60-64 (2009).
assessment that models this phase; reports values for this phase
doi:10.1002/zaac.19060500118 C. H. Mathewson, Metallographische Mitteilung aus dem Institut für anorganische Chemie der Universität Göttingen. XXXIV. Natrium‐Blei‐, Natrium‐Kadmium‐, Natrium‐Wismut‐ und Natrium‐Antimonlegierungen, Z. Anorg. Chem. 50, 171-198 (1906).
cited as the source of values for this phase
doi:10.1002/zaac.19070520117 N. S. Kurnakow, A. N. Kusnetzow, Cadmide des Natriums, Z. Anorg. Chem. 52, 173-185 (1907).
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). doi: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). doi: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.

@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}
}