Ag–La phases

9 phases (tier A 5, tier C 2, 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 · full JSON · Ag–La system page · Markdown · field reference

Phases of the Ag–La system (9)
Phase	Structure	Basis	Stability (calculated)	Literature values	TDB models
AG2LA phase:ag-la:ag2la	Hg2K · oI12 · Imma (74)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 1 of 1 calculated diagram(s): 300–1127.3 K, x(La) 0.33333–0.33333	4	1
AG51LA14 phase:ag-la:ag51la14	Ag51Gd14 · hP68 · P6/m (175)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 1 of 1 calculated diagram(s): 300–1272.5 K, x(La) 0.21538–0.21538	8	1
AG5LA_C14 phase:ag-la:ag5la-c14		needs_review	stable in 1 of 1 calculated diagram(s): 300–1099.45 K, x(La) 0.16667–0.16667	6	1
AGLA_B2 phase:ag-la:agla-b2	CsCl · B2 · cP2 · Pm-3m (221)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–1147.56 K, x(La) 0.5–0.5	6	1
BCC_A2 phase:ag-la:bcc-a2	W · A2 · cI2 · Im-3m (229)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 1067.37–2500 K, x(La) 0.63094–1	0	1
DHCP phase:ag-la:dhcp-a3	alpha-La · A3' · hP4 · P6_3/mmc (194)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–1133.35 K, x(La) 1–1	0	1
FCC_A1 phase:ag-la:fcc-a1	Cu · A1 · cF4 · Fm-3m (225)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–1243.57 K, x(La) 0–1	5	1
HCP_A3 phase:ag-la:hcp-a3	Mg · A3 · hP2 · P6_3/mmc (194)	tier A: standard phase name	not stable in 1 calculated diagram(s)	0	1
LIQUID phase:ag-la:liquid	liquid	liquid	stable in 1 of 1 calculated diagram(s): 802.58–2500 K, x(La) 0–1	17	1

AG2LA (Ag–La)

Id: phase:ag-la:ag2la; 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
Caveat: not certain from the name or DFT alone (dft_space_group_74_matches_2_structure_types, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: Ag 0.6667, La 0.3333
Stability: stable in 1 of 1 calculated diagram(s): 300–1127.3 K, x(La) 0.33333–0.33333
Literature: 4 values (4 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:ag-la:ag2la
paper: paper:10.1016/s0925-8388(99)00686-6:Ag2La
tdb: tdb:AgLa-00Li.tdb:AG2LA

TDB models of AG2LA (1): PHASE and CONSTITUENT statements as written

AgLa-00Li.tdb: AG2LA, type code %, sha256 3c614db77cf33b53…

58: PHASE AG2LA % 2 2 1 !
59: CONST AG2LA : AG : LA : !

Example references (2 of 2; assessments first):

doi:10.1016/S0925-8388(99)00686-6 Z. Li, X. Su, F. Yin, C. Chen, J. Alloys Compd., 299, 195-98(2000).
assessment that models this phase; reports values for this phase
doi:10.1515/ijmr-1974-651210 Stefano Delfino, Riccardo Ferro, Renzo Capelli, Aldo Borsese, Phase Equilibria in the Silver-Lanthanum System, International Journal of Materials Research 65, 781-783 (1974).
cited as the source of values for this phase

AG51LA14 (Ag–La)

Id: phase:ag-la:ag51la14; status assigned
Structure: Ag51Gd14 · hP68 · P6/m (175); type st:ag51gd14-hp68; 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_both, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: Ag 0.7846, La 0.2154
Stability: stable in 1 of 1 calculated diagram(s): 300–1272.5 K, x(La) 0.21538–0.21538
Literature: 8 values (8 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:ag-la:ag51la14
paper: paper:10.1016/s0925-8388(99)00686-6:Ag51La14
tdb: tdb:AgLa-00Li.tdb:AG51LA14

TDB models of AG51LA14 (1): PHASE and CONSTITUENT statements as written

AgLa-00Li.tdb: AG51LA14, type code %, sha256 3c614db77cf33b53…

53: PHASE AG51LA14 % 2 51 14 !
54: CONST AG51LA14 : AG : LA : !

Example references (3 of 3; assessments first):

doi:10.1016/S0925-8388(99)00686-6 Z. Li, X. Su, F. Yin, C. Chen, J. Alloys Compd., 299, 195-98(2000).
assessment that models this phase; reports values for this phase
doi:10.1515/ijmr-1974-651210 Stefano Delfino, Riccardo Ferro, Renzo Capelli, Aldo Borsese, Phase Equilibria in the Silver-Lanthanum System, International Journal of Materials Research 65, 781-783 (1974).
cited as the source of values for this phase
doi:10.1515/ijmr-1982-730308 Theodor Heumann, Heinz Dirkes, Phase Eauilibria in the System Ag-25 at.% La, International Journal of Materials Research 73, 172-173 (1982).
cited as the source of values for this phase

AG5LA_C14 (Ag–La)

Id: phase:ag-la:ag5la-c14; status needs_review
No structure assigned. Why: assessment_declared_blocked_by:stoichiometry_contradicts_C14; stoichiometry_contradicts_C14:AgLa-00Li.tdb
Candidate (literature_printed): MgZn2 · hP12 — printed with a label mapped to this phase
Candidate (name_token): MgZn2 · C14 · hP12 · P6_3/mmc (194) — Strukturbericht/word 'C14' in the TDB name
Candidate (sgte_mmc2): MgZn2 · C14 · hP12 · P6_3/mmc (194) — Hallstedt 2025 mmc2 row for AG5LA_C14: Ag5La
Candidate (tdb_comment): MgZn2 · hP12 · P6_3/mmc — AgLa-00Li.tdb: 'Prototype MgZn2 (hP12, P6_3/mmc)'
Stoichiometry: Ag 0.8333, La 0.1667
Stability: stable in 1 of 1 calculated diagram(s): 300–1099.45 K, x(La) 0.16667–0.16667
Literature: 6 values (6 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:ag-la:ag5la-c14
paper: paper:10.1016/s0925-8388(99)00686-6:Ag5La
tdb: tdb:AgLa-00Li.tdb:AG5LA_C14

TDB models of AG5LA_C14 (1): PHASE and CONSTITUENT statements as written

AgLa-00Li.tdb: AG5LA_C14, type code %, sha256 3c614db77cf33b53…

48: PHASE AG5LA_C14 % 2 5 1 !
49: CONST AG5LA_C14 : AG : LA : !

Example references (3 of 3; assessments first):

doi:10.1016/S0925-8388(99)00686-6 Z. Li, X. Su, F. Yin, C. Chen, J. Alloys Compd., 299, 195-98(2000).
assessment that models this phase; reports values for this phase
doi:10.1515/ijmr-1974-651210 Stefano Delfino, Riccardo Ferro, Renzo Capelli, Aldo Borsese, Phase Equilibria in the Silver-Lanthanum System, International Journal of Materials Research 65, 781-783 (1974).
cited as the source of values for this phase
doi:10.1515/ijmr-1982-730308 Theodor Heumann, Heinz Dirkes, Phase Eauilibria in the System Ag-25 at.% La, International Journal of Materials Research 73, 172-173 (1982).
cited as the source of values for this phase

AGLA_B2 (Ag–La)

Id: phase:ag-la:agla-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, La 0.5000
Stability: stable in 1 of 1 calculated diagram(s): 300–1147.56 K, x(La) 0.5–0.5
Literature: 6 values (6 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:ag-la:agla-b2
paper: paper:10.1016/s0925-8388(99)00686-6:AgLa
tdb: tdb:AgLa-00Li.tdb:AGLA_B2

TDB models of AGLA_B2 (1): PHASE and CONSTITUENT statements as written

AgLa-00Li.tdb: AGLA_B2, type code %A, sha256 3c614db77cf33b53…

63: PHASE AGLA_B2 %A 2 1 1 !
64: CONST AGLA_B2 : AG : LA : !

Example references (2 of 2; assessments first):

doi:10.1016/S0925-8388(99)00686-6 Z. Li, X. Su, F. Yin, C. Chen, J. Alloys Compd., 299, 195-98(2000).
assessment that models this phase; reports values for this phase
doi:10.1515/ijmr-1974-651210 Stefano Delfino, Riccardo Ferro, Renzo Capelli, Aldo Borsese, Phase Equilibria in the Silver-Lanthanum System, International Journal of Materials Research 65, 781-783 (1974).
cited as the source of values for this phase

BCC_A2 (Ag–La)

Id: phase:ag-la: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): 1067.37–2500 K, x(La) 0.63094–1
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:ag-la:bcc-a2
tdb: tdb:AgLa-00Li.tdb:BCC_A2

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

AgLa-00Li.tdb: BCC_A2, type code %B, sha256 3c614db77cf33b53…

33: PHASE BCC_A2 %B 2 1 3 !
34: CONST BCC_A2 : AG LA% : VA : !

Example references (1 of 1; assessments first):

doi:10.1016/S0925-8388(99)00686-6 Z. Li, X. Su, F. Yin, C. Chen, J. Alloys Compd., 299, 195-98(2000).
assessment that models this phase

DHCP (Ag–La)

Id: phase:ag-la:dhcp-a3; status assigned
Structure: alpha-La · A3' · hP4 · P6_3/mmc (194); type st:a3-alpha-la-hp4; tier A: standard phase name; confidence high
Stoichiometry: La 1.0000
Stability: stable in 1 of 1 calculated diagram(s): 300–1133.35 K, x(La) 1–1
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:ag-la:dhcp-a3
tdb: tdb:AgLa-00Li.tdb:DHCP

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

AgLa-00Li.tdb: DHCP, type code %, sha256 3c614db77cf33b53…

43: PHASE DHCP % 1 1 !
44: CONST DHCP : LA : !

Example references (1 of 1; assessments first):

doi:10.1016/S0925-8388(99)00686-6 Z. Li, X. Su, F. Yin, C. Chen, J. Alloys Compd., 299, 195-98(2000).
assessment that models this phase

FCC_A1 (Ag–La)

Id: phase:ag-la: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): 300–1243.57 K, x(La) 0–1
Literature: 5 values (5 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:ag-la:fcc-a1
paper: paper:10.1016/s0925-8388(99)00686-6:Ag, paper:10.1016/s0925-8388(99)00686-6:β-La
tdb: tdb:AgLa-00Li.tdb:FCC_A1

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

AgLa-00Li.tdb: FCC_A1, type code %A, sha256 3c614db77cf33b53…

28: PHASE FCC_A1 %A 2 1 1 !
29: CONST FCC_A1 : AG% LA% : VA : !

Example references (3 of 3; assessments first):

doi:10.1016/S0925-8388(99)00686-6 Z. Li, X. Su, F. Yin, C. Chen, J. Alloys Compd., 299, 195-98(2000).
assessment that models this phase; reports values for this phase
doi:10.1515/ijmr-1974-651210 Stefano Delfino, Riccardo Ferro, Renzo Capelli, Aldo Borsese, Phase Equilibria in the Silver-Lanthanum System, International Journal of Materials Research 65, 781-783 (1974).
cited as the source of values for this phase
doi:10.1515/ijmr-1982-730308 Theodor Heumann, Heinz Dirkes, Phase Eauilibria in the System Ag-25 at.% La, International Journal of Materials Research 73, 172-173 (1982).
cited as the source of values for this phase

HCP_A3 (Ag–La)

Id: phase:ag-la:hcp-a3; status assigned
Structure: Mg · A3 · hP2 · P6_3/mmc (194); type st:a3-mg-hp2; tier A: standard phase name; confidence high
Stoichiometry: Ag 1.0000
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:ag-la:hcp-a3
tdb: tdb:AgLa-00Li.tdb:HCP_A3

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

AgLa-00Li.tdb: HCP_A3, type code %A, sha256 3c614db77cf33b53…

38: PHASE HCP_A3 %A 2 1 0.5 !
39: CONST HCP_A3 : AG : VA : !

Example references (1 of 1; assessments first):

doi:10.1016/S0925-8388(99)00686-6 Z. Li, X. Su, F. Yin, C. Chen, J. Alloys Compd., 299, 195-98(2000).
assessment that models this phase

LIQUID (Ag–La)

Id: phase:ag-la:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 1 of 1 calculated diagram(s): 802.58–2500 K, x(La) 0–1
Literature: 17 values (17 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:ag-la:liquid
paper: paper:10.1016/s0925-8388(99)00686-6:L
tdb: tdb:AgLa-00Li.tdb:LIQUID

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

AgLa-00Li.tdb: LIQUID, type code %, sha256 3c614db77cf33b53…

23: PHASE LIQUID:L % 1 1 !
24: CONST LIQUID:L : AG LA : !

Example references (3 of 3; assessments first):

doi:10.1016/S0925-8388(99)00686-6 Z. Li, X. Su, F. Yin, C. Chen, J. Alloys Compd., 299, 195-98(2000).
assessment that models this phase; reports values for this phase
doi:10.1515/ijmr-1974-651210 Stefano Delfino, Riccardo Ferro, Renzo Capelli, Aldo Borsese, Phase Equilibria in the Silver-Lanthanum System, International Journal of Materials Research 65, 781-783 (1974).
cited as the source of values for this phase
doi:10.1515/ijmr-1982-730308 Theodor Heumann, Heinz Dirkes, Phase Eauilibria in the System Ag-25 at.% La, International Journal of Materials Research 73, 172-173 (1982).
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}
}