# Ag–Cd phases > Ag–Cd system: 8 phases (tier A 5, tier C 1, liquid 1, needs_review 1); 8 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/AG-CD.html · Markdown: https://data.orchid-project.org/phases/pages/AG-CD.md 8 phases (tier A 5, tier C 1, liquid 1, needs_review 1); 8 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=AG-CD) · [full JSON](https://data.orchid-project.org/phases/systems/AG-CD.json) · [Ag–Cd system page](https://data.orchid-project.org/systems/AG-CD.html) · [Markdown](https://data.orchid-project.org/phases/pages/AG-CD.md) · [field reference](https://data.orchid-project.org/phases/SCHEMA.md) Table: Phases of the Ag–Cd system (8) | Phase | Structure | Basis | Stability (calculated) | Literature values | TDB models | |---|---|---|---|---:|---:| | [AG2CD3_D82](#phase-ag-cd-ag2cd3-d82); _phase:ag-cd:ag2cd3-d82_ | | needs_review | stable in 1 of 2 calculated diagram(s): 300–903.4 K, x(Cd) 0.6–0.6 | 0 | 2 | | [AGCD_A3](#phase-ag-cd-agcd-a3); _phase:ag-cd:agcd-a3_ | Mg · A3 · hP2 · P6_3/mmc (194) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 497.81–734.39 K, x(Cd) 0.48276–0.54602 | 0 | 1 | | [AGCD_B2](#phase-ag-cd-agcd-b2); _phase:ag-cd:agcd-b2_ | CsCl · B2 · cP2 · Pm-3m (221) | tier A: standard phase name | stable in 2 of 2 calculated diagram(s): 300–516.94 K, x(Cd) 0.5–0.5 | 0 | 2 | | [BCC_A2](#phase-ag-cd-bcc-a2); _phase:ag-cd:bcc-a2_ | W · A2 · cI2 · Im-3m (229) | tier A: standard phase name | stable in 2 of 2 calculated diagram(s): 701.38–992.97 K, x(Cd) 0.4272–0.59379 | 0 | 2 | | [FCC_A1](#phase-ag-cd-fcc-a1); _phase:ag-cd:fcc-a1_ | Cu · A1 · cF4 · Fm-3m (225) | tier A: standard phase name | stable in 2 of 2 calculated diagram(s): 300–1234.93 K, x(Cd) 0–0.44276 | 0 | 2 | | [HCP_A3](#phase-ag-cd-hcp-a3); _phase:ag-cd:hcp-a3_ | Mg · A3 · hP2 · P6_3/mmc (194) | tier A: standard phase name | stable in 2 of 2 calculated diagram(s): 300–866.6 K, x(Cd) 0.66673–1 | 0 | 2 | | [HCP_IM_A3](#phase-ag-cd-hcp-a3-im); _phase:ag-cd:hcp-a3-im_ | Mg · A3 · hP2 · P6_3/mmc (194) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 1 of 1 calculated diagram(s): 300–886.3 K, x(Cd) 0.49106–0.82749 | 0 | 1 | | [LIQUID](#phase-ag-cd-liquid); _phase:ag-cd:liquid_ | liquid | liquid | stable in 2 of 2 calculated diagram(s): 593.22–2500 K, x(Cd) 0–1 | 0 | 2 | ## AG2CD3_D82 (Ag–Cd) - Id: `phase:ag-cd:ag2cd3-d82`; status `needs_review` - No structure assigned. Why: assessment_declared_blocked_by:stoichiometry_contradicts_D8_2; stoichiometry_contradicts_D8_2:AgCd-04Che-LB.tdb; stoichiometry_contradicts_D8_2:AgCd-19Fis.tdb - Candidate (name_token): Cu5Zn8 · D8_2 · cI52 · I-43m (217) — Strukturbericht/word 'D82' in the TDB name - Candidate (sgte_mmc2): Cu5Zn8 · D8_2 · cI52 · I-43m (217) — Hallstedt 2025 mmc2 row for AG2CD3_D82: Ag2Cd3 - Candidate (tdb_comment): Cu5Zn8 · cI52 · I-43m — AgCd-04Che-LB.tdb: 'Prototype Cu5Zn8 (cI52, I-43m)' - Candidate (tdb_comment): Cu5Zn8 · cI52 · I-43m — AgCd-19Fis.tdb: 'Prototype Cu5Zn8 (cI52, I-43m)' - Stoichiometry: Ag 0.4000, Cd 0.6000 - Stability: stable in 1 of 2 calculated diagram(s): 300–903.4 K, x(Cd) 0.6–0.6 - Literature: 0 values (0 accepted) from 0 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ag-cd:ag2cd3-d82) Names (3): _corpus: _corpus:phase:ag-cd:ag2cd3-d82 _tdb: _tdb:AgCd-04Che-LB.tdb:AG2CD3_D82, tdb:AgCd-19Fis.tdb:AG2CD3_D82 ### TDB models of AG2CD3_D82 (2): PHASE and CONSTITUENT statements as written [AgCd-04Che-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/AgCd-04Che-LB.tdb): AG2CD3_D82, type code %, sha256 `1069d30f1957b866…` ~~~~text 58: PHASE AG2CD3_D82 % 2 2 3 ! 59: CONST AG2CD3_D82 : AG : CD : ! ~~~~ [AgCd-19Fis.tdb](https://orchid-project.org/data/databases/sgte-binary/AgCd-19Fis.tdb): AG2CD3_D82, type code %, sha256 `34c2dd35b1690188…` ~~~~text 51: PHASE AG2CD3_D82 % 2 2 3 ! 52: CONST AG2CD3_D82 : AG : CD : ! ~~~~ Example references (1 of 1; assessments first): - [doi:10.1016/j.calphad.2019.01.001](https://doi.org/10.1016/j.calphad.2019.01.001) E. Fischer, K. Gajavalli, G. Mikaelian, P. Benigni, J. Rogez, A. Decreton et al., Experimental study and thermodynamic modelling of the Ag-Cd-In system, Calphad 64, 292-305 (2019). _assessment that models this phase_ ## AGCD_A3 (Ag–Cd) - Id: `phase:ag-cd:agcd-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): 497.81–734.39 K, x(Cd) 0.48276–0.54602 - Literature: 0 values (0 accepted) from 0 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ag-cd:agcd-a3) Names (2): _corpus: _corpus:phase:ag-cd:agcd-a3 _tdb: _tdb:AgCd-04Che-LB.tdb:AGCD_A3 ### TDB models of AGCD_A3 (1): PHASE and CONSTITUENT statements as written [AgCd-04Che-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/AgCd-04Che-LB.tdb): AGCD_A3, type code %, sha256 `1069d30f1957b866…` ~~~~text 48: PHASE AGCD_A3 % 1 1 ! 49: CONST AGCD_A3 : AG CD : ! ~~~~ ## AGCD_B2 (Ag–Cd) - Id: `phase:ag-cd:agcd-b2`; status `assigned` - Structure: CsCl · B2 · cP2 · Pm-3m (221); type `st:b2-cscl-cp2`; tier A: standard phase name; confidence high - Stoichiometry: Ag 0.5000, Cd 0.5000 - Stability: stable in 2 of 2 calculated diagram(s): 300–516.94 K, x(Cd) 0.5–0.5 - Literature: 0 values (0 accepted) from 0 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ag-cd:agcd-b2) Names (3): _corpus: _corpus:phase:ag-cd:agcd-b2 _tdb: _tdb:AgCd-04Che-LB.tdb:AGCD_B2, tdb:AgCd-19Fis.tdb:AGCD_B2 ### TDB models of AGCD_B2 (2): PHASE and CONSTITUENT statements as written [AgCd-04Che-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/AgCd-04Che-LB.tdb): AGCD_B2, type code %, sha256 `1069d30f1957b866…` ~~~~text 53: PHASE AGCD_B2 % 2 1 1 ! 54: CONST AGCD_B2 : AG : CD : ! ~~~~ [AgCd-19Fis.tdb](https://orchid-project.org/data/databases/sgte-binary/AgCd-19Fis.tdb): AGCD_B2, type code %, sha256 `34c2dd35b1690188…` ~~~~text 46: PHASE AGCD_B2 % 2 1 1 ! 47: CONST AGCD_B2 : AG : CD : ! ~~~~ Example references (1 of 1; assessments first): - [doi:10.1016/j.calphad.2019.01.001](https://doi.org/10.1016/j.calphad.2019.01.001) E. Fischer, K. Gajavalli, G. Mikaelian, P. Benigni, J. Rogez, A. Decreton et al., Experimental study and thermodynamic modelling of the Ag-Cd-In system, Calphad 64, 292-305 (2019). _assessment that models this phase_ ## BCC_A2 (Ag–Cd) - Id: `phase:ag-cd: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 2 of 2 calculated diagram(s): 701.38–992.97 K, x(Cd) 0.4272–0.59379 - Literature: 0 values (0 accepted) from 0 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ag-cd:bcc-a2) Names (3): _corpus: _corpus:phase:ag-cd:bcc-a2 _tdb: _tdb:AgCd-04Che-LB.tdb:BCC_A2, tdb:AgCd-19Fis.tdb:BCC_A2 ### TDB models of BCC_A2 (2): PHASE and CONSTITUENT statements as written [AgCd-04Che-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/AgCd-04Che-LB.tdb): BCC_A2, type code %B, sha256 `1069d30f1957b866…` ~~~~text 38: PHASE BCC_A2 %B 2 1 3 ! 39: CONST BCC_A2 : AG CD : VA : ! ~~~~ [AgCd-19Fis.tdb](https://orchid-project.org/data/databases/sgte-binary/AgCd-19Fis.tdb): BCC_A2, type code %B, sha256 `34c2dd35b1690188…` ~~~~text 31: PHASE BCC_A2 %B 2 1 3 ! 32: CONST BCC_A2 : AG CD : VA : ! ~~~~ Example references (1 of 1; assessments first): - [doi:10.1016/j.calphad.2019.01.001](https://doi.org/10.1016/j.calphad.2019.01.001) E. Fischer, K. Gajavalli, G. Mikaelian, P. Benigni, J. Rogez, A. Decreton et al., Experimental study and thermodynamic modelling of the Ag-Cd-In system, Calphad 64, 292-305 (2019). _assessment that models this phase_ ## FCC_A1 (Ag–Cd) - Id: `phase:ag-cd: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 2 of 2 calculated diagram(s): 300–1234.93 K, x(Cd) 0–0.44276 - Literature: 0 values (0 accepted) from 0 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ag-cd:fcc-a1) Names (3): _corpus: _corpus:phase:ag-cd:fcc-a1 _tdb: _tdb:AgCd-04Che-LB.tdb:FCC_A1, tdb:AgCd-19Fis.tdb:FCC_A1 ### TDB models of FCC_A1 (2): PHASE and CONSTITUENT statements as written [AgCd-04Che-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/AgCd-04Che-LB.tdb): FCC_A1, type code %A, sha256 `1069d30f1957b866…` ~~~~text 33: PHASE FCC_A1 %A 2 1 1 ! 34: CONST FCC_A1 : AG% CD : VA : ! ~~~~ [AgCd-19Fis.tdb](https://orchid-project.org/data/databases/sgte-binary/AgCd-19Fis.tdb): FCC_A1, type code %A, sha256 `34c2dd35b1690188…` ~~~~text 26: PHASE FCC_A1 %A 2 1 1 ! 27: CONST FCC_A1 : AG% CD : VA : ! ~~~~ Example references (1 of 1; assessments first): - [doi:10.1016/j.calphad.2019.01.001](https://doi.org/10.1016/j.calphad.2019.01.001) E. Fischer, K. Gajavalli, G. Mikaelian, P. Benigni, J. Rogez, A. Decreton et al., Experimental study and thermodynamic modelling of the Ag-Cd-In system, Calphad 64, 292-305 (2019). _assessment that models this phase_ ## HCP_A3 (Ag–Cd) - Id: `phase:ag-cd: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 2 of 2 calculated diagram(s): 300–866.6 K, x(Cd) 0.66673–1 - Literature: 0 values (0 accepted) from 0 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ag-cd:hcp-a3) Names (3): _corpus: _corpus:phase:ag-cd:hcp-a3 _tdb: _tdb:AgCd-04Che-LB.tdb:HCP_A3, tdb:AgCd-19Fis.tdb:HCP_A3 ### TDB models of HCP_A3 (2): PHASE and CONSTITUENT statements as written [AgCd-04Che-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/AgCd-04Che-LB.tdb): HCP_A3, type code %A, sha256 `1069d30f1957b866…` ~~~~text 43: PHASE HCP_A3 %A 2 1 0.5 ! 44: CONST HCP_A3 : AG CD% : VA : ! ~~~~ [AgCd-19Fis.tdb](https://orchid-project.org/data/databases/sgte-binary/AgCd-19Fis.tdb): HCP_A3, type code %A, sha256 `34c2dd35b1690188…` ~~~~text 36: PHASE HCP_A3 %A 2 1 0.5 ! 37: CONST HCP_A3 : AG CD% : VA : ! ~~~~ Example references (1 of 1; assessments first): - [doi:10.1016/j.calphad.2019.01.001](https://doi.org/10.1016/j.calphad.2019.01.001) E. Fischer, K. Gajavalli, G. Mikaelian, P. Benigni, J. Rogez, A. Decreton et al., Experimental study and thermodynamic modelling of the Ag-Cd-In system, Calphad 64, 292-305 (2019). _assessment that models this phase_ ## HCP_IM_A3 (Ag–Cd) - Id: `phase:ag-cd:hcp-a3-im`; status `assigned` - Structure: Mg · A3 · hP2 · P6_3/mmc (194); type `st:a3-mg-hp2`; 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 (unrecognised_name_tokens:IM); structure as stated in the SGTE crystallographic table for this phase name and system - Stability: stable in 1 of 1 calculated diagram(s): 300–886.3 K, x(Cd) 0.49106–0.82749 - Literature: 0 values (0 accepted) from 0 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ag-cd:hcp-a3-im) Names (2): _corpus: _corpus:phase:ag-cd:hcp-a3-im _tdb: _tdb:AgCd-19Fis.tdb:HCP_IM_A3 ### TDB models of HCP_IM_A3 (1): PHASE and CONSTITUENT statements as written [AgCd-19Fis.tdb](https://orchid-project.org/data/databases/sgte-binary/AgCd-19Fis.tdb): HCP_IM_A3, type code %, sha256 `34c2dd35b1690188…` ~~~~text 41: PHASE HCP_IM_A3 % 1 1 ! 42: CONST HCP_IM_A3 : AG CD : ! ~~~~ Example references (1 of 1; assessments first): - [doi:10.1016/j.calphad.2019.01.001](https://doi.org/10.1016/j.calphad.2019.01.001) E. Fischer, K. Gajavalli, G. Mikaelian, P. Benigni, J. Rogez, A. Decreton et al., Experimental study and thermodynamic modelling of the Ag-Cd-In system, Calphad 64, 292-305 (2019). _assessment that models this phase_ ## LIQUID (Ag–Cd) - Id: `phase:ag-cd:liquid`; status `assigned` - Structure: liquid; type `st:liquid`; liquid; confidence high - Stability: stable in 2 of 2 calculated diagram(s): 593.22–2500 K, x(Cd) 0–1 - Literature: 0 values (0 accepted) from 0 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ag-cd:liquid) Names (3): _corpus: _corpus:phase:ag-cd:liquid _tdb: _tdb:AgCd-04Che-LB.tdb:LIQUID, tdb:AgCd-19Fis.tdb:LIQUID ### TDB models of LIQUID (2): PHASE and CONSTITUENT statements as written [AgCd-04Che-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/AgCd-04Che-LB.tdb): LIQUID, type code %, sha256 `1069d30f1957b866…` ~~~~text 28: PHASE LIQUID:L % 1 1 ! 29: CONST LIQUID:L : AG CD : ! ~~~~ [AgCd-19Fis.tdb](https://orchid-project.org/data/databases/sgte-binary/AgCd-19Fis.tdb): LIQUID, type code %, sha256 `34c2dd35b1690188…` ~~~~text 21: PHASE LIQUID:L % 1 1 ! 22: CONST LIQUID:L : AG CD : ! ~~~~ Example references (1 of 1; assessments first): - [doi:10.1016/j.calphad.2019.01.001](https://doi.org/10.1016/j.calphad.2019.01.001) E. Fischer, K. Gajavalli, G. Mikaelian, P. Benigni, J. Rogez, A. Decreton et al., Experimental study and thermodynamic modelling of the Ag-Cd-In system, Calphad 64, 292-305 (2019). _assessment that models 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).