Al–Yb phases

6 phases (tier A 5, 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 · Al–Yb system page · Markdown · field reference

Phases of the Al–Yb system (6)
Phase	Structure	Basis	Stability (calculated)	Literature values	TDB models
AL2YB_C15 phase:al-yb:al2yb-c15	Cu2Mg · C15 · cF24 · Fd-3m (227)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–1627.47 K, x(Yb) 0.33333–0.33333	9	1
AL3YB_L12 phase:al-yb:al3yb-l12	AuCu3 · L1_2 · cP4 · Pm-3m (221)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–1250.81 K, x(Yb) 0.25–0.25	7	1
BCC_A2 phase:al-yb:bcc-a2	W · A2 · cI2 · Im-3m (229)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 989.32–2499.32 K, x(Yb) 0.98185–1	2	1
FCC_A1 phase:al-yb:fcc-a1	Cu · A1 · cF4 · Fm-3m (225)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–1033 K, x(Yb) 0–1	9	1
HCP_A3 phase:al-yb: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:al-yb:liquid	liquid	liquid	stable in 1 of 1 calculated diagram(s): 903.41–2500 K, x(Yb) 0–1	17	1

AL2YB_C15 (Al–Yb)

Id: phase:al-yb:al2yb-c15; status assigned
Structure: Cu2Mg · C15 · cF24 · Fd-3m (227); type st:c15-cu2mg-cf24; tier A: standard phase name; confidence high
Stoichiometry: Al 0.6667, Yb 0.3333
Stability: stable in 1 of 1 calculated diagram(s): 300–1627.47 K, x(Yb) 0.33333–0.33333
Literature: 9 values (9 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:al-yb:al2yb-c15
paper: paper:10.1016/j.jallcom.2006.11.023:Al2Yb
tdb: tdb:AlYb-08Men.tdb:AL2YB_C15

TDB models of AL2YB_C15 (1): PHASE and CONSTITUENT statements as written

AlYb-08Men.tdb: AL2YB_C15, type code %, sha256 616ba32d9c51287b…

46: PHASE AL2YB_C15 % 2 2 1 !
47: CONST AL2YB_C15 : AL : YB : !

Example references (2 of 2; assessments first):

doi:10.1016/j.jallcom.2006.11.023 F.G. Meng, L.G. Zhang, H.S. Liu, L.B. Liu, Z.P. Jin, Thermodynamic optimization of the Al–Yb binary system, Journal of Alloys and Compounds 452, 279-282 (2008).
assessment that models this phase; reports values for this phase
doi:10.1016/0022-5088(72)90116-6 A. Palenzona, The ytterbium-aluminum system, Journal of the Less Common Metals 29, 289-292 (1972).
cited as the source of values for this phase

AL3YB_L12 (Al–Yb)

Id: phase:al-yb:al3yb-l12; status assigned
Structure: AuCu3 · L1_2 · cP4 · Pm-3m (221); type st:l1-2-aucu3-cp4; tier A: standard phase name; confidence high
Stoichiometry: Al 0.7500, Yb 0.2500
Stability: stable in 1 of 1 calculated diagram(s): 300–1250.81 K, x(Yb) 0.25–0.25
Literature: 7 values (7 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:al-yb:al3yb-l12
paper: paper:10.1016/j.jallcom.2006.11.023:Al3Yb
tdb: tdb:AlYb-08Men.tdb:AL3YB_L12

TDB models of AL3YB_L12 (1): PHASE and CONSTITUENT statements as written

AlYb-08Men.tdb: AL3YB_L12, type code %, sha256 616ba32d9c51287b…

41: PHASE AL3YB_L12 % 2 3 1 !
42: CONST AL3YB_L12 : AL : YB : !

Example references (2 of 2; assessments first):

doi:10.1016/j.jallcom.2006.11.023 F.G. Meng, L.G. Zhang, H.S. Liu, L.B. Liu, Z.P. Jin, Thermodynamic optimization of the Al–Yb binary system, Journal of Alloys and Compounds 452, 279-282 (2008).
assessment that models this phase; reports values for this phase
doi:10.1016/0022-5088(72)90116-6 A. Palenzona, The ytterbium-aluminum system, Journal of the Less Common Metals 29, 289-292 (1972).
cited as the source of values for this phase

BCC_A2 (Al–Yb)

Id: phase:al-yb: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): 989.32–2499.32 K, x(Yb) 0.98185–1
Literature: 2 values (2 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:al-yb:bcc-a2
paper: paper:10.1016/j.jallcom.2006.11.023:(γYb)
tdb: tdb:AlYb-08Men.tdb:BCC_A2

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

AlYb-08Men.tdb: BCC_A2, type code %B, sha256 616ba32d9c51287b…

31: PHASE BCC_A2 %B 2 1 3 !
32: CONST BCC_A2 : AL YB% : VA : !

Example references (2 of 2; assessments first):

doi:10.1016/j.jallcom.2006.11.023 F.G. Meng, L.G. Zhang, H.S. Liu, L.B. Liu, Z.P. Jin, Thermodynamic optimization of the Al–Yb binary system, Journal of Alloys and Compounds 452, 279-282 (2008).
assessment that models this phase; reports values for this phase
doi:10.1016/0022-5088(72)90116-6 A. Palenzona, The ytterbium-aluminum system, Journal of the Less Common Metals 29, 289-292 (1972).
cited as the source of values for this phase

FCC_A1 (Al–Yb)

Id: phase:al-yb: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): 300–1033 K, x(Yb) 0–1
Literature: 9 values (9 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:al-yb:fcc-a1
paper: paper:10.1016/j.jallcom.2006.11.023:(Al), paper:10.1016/j.jallcom.2006.11.023:(βYb)
tdb: tdb:AlYb-08Men.tdb:FCC_A1

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

AlYb-08Men.tdb: FCC_A1, type code %A, sha256 616ba32d9c51287b…

26: PHASE FCC_A1 %A 2 1 1 !
27: CONST FCC_A1 : AL% YB% : VA : !

Example references (2 of 2; assessments first):

doi:10.1016/j.jallcom.2006.11.023 F.G. Meng, L.G. Zhang, H.S. Liu, L.B. Liu, Z.P. Jin, Thermodynamic optimization of the Al–Yb binary system, Journal of Alloys and Compounds 452, 279-282 (2008).
assessment that models this phase; reports values for this phase
doi:10.1016/0022-5088(72)90116-6 A. Palenzona, The ytterbium-aluminum system, Journal of the Less Common Metals 29, 289-292 (1972).
cited as the source of values for this phase

HCP_A3 (Al–Yb)

Id: phase:al-yb: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

Names (2): corpus: corpus:phase:al-yb:hcp-a3
tdb: tdb:AlYb-08Men.tdb:HCP_A3

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

AlYb-08Men.tdb: HCP_A3, type code %A, sha256 616ba32d9c51287b…

36: PHASE HCP_A3 %A 2 1 0.5 !
37: CONST HCP_A3 : AL YB : VA : !

Example references (1 of 1; assessments first):

doi:10.1016/j.jallcom.2006.11.023 F.G. Meng, L.G. Zhang, H.S. Liu, L.B. Liu, Z.P. Jin, Thermodynamic optimization of the Al–Yb binary system, Journal of Alloys and Compounds 452, 279-282 (2008).
assessment that models this phase

LIQUID (Al–Yb)

Id: phase:al-yb:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 1 of 1 calculated diagram(s): 903.41–2500 K, x(Yb) 0–1
Literature: 17 values (17 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:al-yb:liquid
paper: paper:10.1016/j.jallcom.2006.11.023:L, paper:10.1016/j.jallcom.2006.11.023:liquid
tdb: tdb:AlYb-08Men.tdb:LIQUID

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

AlYb-08Men.tdb: LIQUID, type code %, sha256 616ba32d9c51287b…

21: PHASE LIQUID:L % 1 1 !
22: CONST LIQUID:L : AL YB : !

Example references (2 of 2; assessments first):

doi:10.1016/j.jallcom.2006.11.023 F.G. Meng, L.G. Zhang, H.S. Liu, L.B. Liu, Z.P. Jin, Thermodynamic optimization of the Al–Yb binary system, Journal of Alloys and Compounds 452, 279-282 (2008).
assessment that models this phase; reports values for this phase
doi:10.1016/0022-5088(72)90116-6 A. Palenzona, The ytterbium-aluminum system, Journal of the Less Common Metals 29, 289-292 (1972).
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}
}