Lu–Sb phases

10 phases (tier A 5, tier C 2, liquid 1, needs_review 2); 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 · Lu–Sb system page · Markdown · field reference

Phases of the Lu–Sb system (10)
Phase	Structure	Basis	Stability (calculated)	Literature values	TDB models
RHOMBOHEDRAL_A7 phase:lu-sb:a7-rhombohedral	alpha-As · A7 · hR2 · R-3m (166)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–903.78 K, x(Sb) 1–1	2	1
BCC_A2 phase:lu-sb:bcc-a2	W · A2 · cI2 · Im-3m (229)	tier A: standard phase name	not stable in 1 calculated diagram(s)	0	1
FCC_A1 phase:lu-sb: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:lu-sb:hcp-a3	Mg · A3 · hP2 · P6_3/mmc (194)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–1957.83 K, x(Sb) 0–0.01948	2	1
LIQUID phase:lu-sb:liquid	liquid	liquid	stable in 1 of 1 calculated diagram(s): 900.67–2500 K, x(Sb) 0–1	12	1
LU3SB phase:lu-sb:lu3sb		needs_review	stable in 1 of 1 calculated diagram(s): 300–1563.16 K, x(Sb) 0.25–0.25	7	1
LU5SB3 phase:lu-sb:lu5sb3	Bi3Y5 · oP32 · Pnma (62)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 1 of 1 calculated diagram(s): 300–1843.43 K, x(Sb) 0.375–0.375	7	1
LUSB_B1 phase:lu-sb:lusb-b1	NaCl · B1 · cF8 · Fm-3m (225)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–2139.13 K, x(Sb) 0.5–0.5	10	1
LUSB_BETA phase:lu-sb:lusb-beta		needs_review	stable in 1 of 1 calculated diagram(s): 2139.13–2453.24 K, x(Sb) 0.5–0.5	4	1
LUSB2 phase:lu-sb:lusb2	HoSb2 · oC6 · C222 (21)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 1 of 1 calculated diagram(s): 300–1202.47 K, x(Sb) 0.66667–0.66667	9	1

RHOMBOHEDRAL_A7 (Lu–Sb)

Id: phase:lu-sb:a7-rhombohedral; status assigned
Structure: alpha-As · A7 · hR2 · R-3m (166); type st:a7-alpha-as-hr2; tier A: standard phase name; confidence high
Stoichiometry: Sb 1.0000
Stability: stable in 1 of 1 calculated diagram(s): 300–903.78 K, x(Sb) 1–1
Literature: 2 values (2 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:lu-sb:a7-rhombohedral, corpus:phase:lu-sb:rhombohedral-a7
paper: paper:10.1016/j.calphad.2011.05.003:(Sb)
tdb: tdb:LuSb-11Wan.tdb:RHOMBOHEDRAL_A7

TDB models of RHOMBOHEDRAL_A7 (1): PHASE and CONSTITUENT statements as written

LuSb-11Wan.tdb: RHOMBOHEDRAL_A7, type code %, sha256 2d5ed9c2ebfd6144…

40: PHASE RHOMBOHEDRAL_A7 % 1 1 !
41: CONST RHOMBOHEDRAL_A7 : SB : !

Example references (2 of 2; assessments first):

doi:10.1016/j.calphad.2011.05.003 S.L. Wang, F. Gao, S.X. Gan, C.P. Wang, X.J. Liu, Thermodynamic assessments of the Bi–Lu and Lu–Sb systems, Calphad 35, 421-426 (2011).
assessment that models this phase; reports values for this phase
doi:10.1016/0022-5088(90)90004-4 M.N. Abdusalyamova, N.D. Faslyeva, A.A. Eliseev, E.A. Shishkin, O.I. Rakhmatov, A.G. Chuiko et al., The Lu-Sb system, Journal of the Less Common Metals 166, 229-232 (1990).
cited as the source of values for this phase

BCC_A2 (Lu–Sb)

Id: phase:lu-sb:bcc-a2; status assigned
Structure: W · A2 · cI2 · Im-3m (229); type st:a2-w-ci2; tier A: standard phase name; confidence high
Stoichiometry: Sb 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:lu-sb:bcc-a2
tdb: tdb:LuSb-11Wan.tdb:BCC_A2

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

LuSb-11Wan.tdb: BCC_A2, type code %B, sha256 2d5ed9c2ebfd6144…

30: PHASE BCC_A2 %B 2 1 3 !
31: CONST BCC_A2 : SB : VA : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2011.05.003 S.L. Wang, F. Gao, S.X. Gan, C.P. Wang, X.J. Liu, Thermodynamic assessments of the Bi–Lu and Lu–Sb systems, Calphad 35, 421-426 (2011).
assessment that models this phase

FCC_A1 (Lu–Sb)

Id: phase:lu-sb:fcc-a1; status assigned
Structure: Cu · A1 · cF4 · Fm-3m (225); type st:a1-cu-cf4; tier A: standard phase name; confidence high
Stoichiometry: Sb 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:lu-sb:fcc-a1
tdb: tdb:LuSb-11Wan.tdb:FCC_A1

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

LuSb-11Wan.tdb: FCC_A1, type code %A, sha256 2d5ed9c2ebfd6144…

25: PHASE FCC_A1 %A 2 1 1 !
26: CONST FCC_A1 : SB : VA : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2011.05.003 S.L. Wang, F. Gao, S.X. Gan, C.P. Wang, X.J. Liu, Thermodynamic assessments of the Bi–Lu and Lu–Sb systems, Calphad 35, 421-426 (2011).
assessment that models this phase

HCP_A3 (Lu–Sb)

Id: phase:lu-sb: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): 300–1957.83 K, x(Sb) 0–0.01948
Literature: 2 values (2 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:lu-sb:hcp-a3
paper: paper:10.1016/j.calphad.2011.05.003:(Lu)
tdb: tdb:LuSb-11Wan.tdb:HCP_A3

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

LuSb-11Wan.tdb: HCP_A3, type code %A, sha256 2d5ed9c2ebfd6144…

35: PHASE HCP_A3 %A 2 1 0.5 !
36: CONST HCP_A3 : LU% SB : VA : !

Example references (2 of 2; assessments first):

doi:10.1016/j.calphad.2011.05.003 S.L. Wang, F. Gao, S.X. Gan, C.P. Wang, X.J. Liu, Thermodynamic assessments of the Bi–Lu and Lu–Sb systems, Calphad 35, 421-426 (2011).
assessment that models this phase; reports values for this phase
doi:10.1016/0022-5088(90)90004-4 M.N. Abdusalyamova, N.D. Faslyeva, A.A. Eliseev, E.A. Shishkin, O.I. Rakhmatov, A.G. Chuiko et al., The Lu-Sb system, Journal of the Less Common Metals 166, 229-232 (1990).
cited as the source of values for this phase

LIQUID (Lu–Sb)

Id: phase:lu-sb:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 1 of 1 calculated diagram(s): 900.67–2500 K, x(Sb) 0–1
Literature: 12 values (12 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:lu-sb:liquid
paper: paper:10.1016/j.calphad.2011.05.003:L
tdb: tdb:LuSb-11Wan.tdb:LIQUID

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

LuSb-11Wan.tdb: LIQUID, type code %, sha256 2d5ed9c2ebfd6144…

20: PHASE LIQUID:L % 1 1 !
21: CONST LIQUID:L : LU SB : !

Example references (2 of 2; assessments first):

doi:10.1016/j.calphad.2011.05.003 S.L. Wang, F. Gao, S.X. Gan, C.P. Wang, X.J. Liu, Thermodynamic assessments of the Bi–Lu and Lu–Sb systems, Calphad 35, 421-426 (2011).
assessment that models this phase; reports values for this phase
doi:10.1016/0022-5088(90)90004-4 M.N. Abdusalyamova, N.D. Faslyeva, A.A. Eliseev, E.A. Shishkin, O.I. Rakhmatov, A.G. Chuiko et al., The Lu-Sb system, Journal of the Less Common Metals 166, 229-232 (1990).
cited as the source of values for this phase

LU3SB (Lu–Sb)

Id: phase:lu-sb:lu3sb; status needs_review
No structure assigned. Why: no_on_hull_entry_in_both; no_structure_token; sgte_mmc2_row_incomplete
Candidate (literature_printed): (Lu3Sb) · ? — printed with a label mapped to this phase
Candidate (sgte_mmc2): (Lu3Sb) — Hallstedt 2025 mmc2 row for LU3SB: Lu3Sb
Stoichiometry: Lu 0.7500, Sb 0.2500
Stability: stable in 1 of 1 calculated diagram(s): 300–1563.16 K, x(Sb) 0.25–0.25
Literature: 7 values (7 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:lu-sb:lu3sb
paper: paper:10.1016/j.calphad.2011.05.003:Lu3Sb
tdb: tdb:LuSb-11Wan.tdb:LU3SB

TDB models of LU3SB (1): PHASE and CONSTITUENT statements as written

LuSb-11Wan.tdb: LU3SB, type code %, sha256 2d5ed9c2ebfd6144…

45: PHASE LU3SB % 2 3 1 !
46: CONST LU3SB : LU : SB : !

Example references (3 of 3; assessments first):

doi:10.1016/j.calphad.2011.05.003 S.L. Wang, F. Gao, S.X. Gan, C.P. Wang, X.J. Liu, Thermodynamic assessments of the Bi–Lu and Lu–Sb systems, Calphad 35, 421-426 (2011).
assessment that models this phase; reports values for this phase
doi:10.1016/0022-5088(90)90004-4 M.N. Abdusalyamova, N.D. Faslyeva, A.A. Eliseev, E.A. Shishkin, O.I. Rakhmatov, A.G. Chuiko et al., The Lu-Sb system, Journal of the Less Common Metals 166, 229-232 (1990).
cited as the source of values for this phase
doi:10.1016/0022-5088(84)90320-5 C. Colinet, A. Pasturel, A. Percheron-Guégan, J.C. Achard, Enthalpies of formation of liquid and solid binary alloys of lead, antimony and bismuth with rare earth elements, Journal of the Less Common Metals 102, 239-249 (1984).
cited as the source of values for this phase

LU5SB3 (Lu–Sb)

Id: phase:lu-sb:lu5sb3; status assigned
Structure: Bi3Y5 · oP32 · Pnma (62); type st:bi3y5-op32; 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_62_matches_3_structure_types, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: Lu 0.6250, Sb 0.3750
Stability: stable in 1 of 1 calculated diagram(s): 300–1843.43 K, x(Sb) 0.375–0.375
Literature: 7 values (7 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:lu-sb:lu5sb3
paper: paper:10.1016/j.calphad.2011.05.003:Lu5Sb3
tdb: tdb:LuSb-11Wan.tdb:LU5SB3

TDB models of LU5SB3 (1): PHASE and CONSTITUENT statements as written

LuSb-11Wan.tdb: LU5SB3, type code %, sha256 2d5ed9c2ebfd6144…

50: PHASE LU5SB3 % 2 5 3 !
51: CONST LU5SB3 : LU : SB : !

Example references (3 of 3; assessments first):

doi:10.1016/j.calphad.2011.05.003 S.L. Wang, F. Gao, S.X. Gan, C.P. Wang, X.J. Liu, Thermodynamic assessments of the Bi–Lu and Lu–Sb systems, Calphad 35, 421-426 (2011).
assessment that models this phase; reports values for this phase
doi:10.1016/0022-5088(90)90004-4 M.N. Abdusalyamova, N.D. Faslyeva, A.A. Eliseev, E.A. Shishkin, O.I. Rakhmatov, A.G. Chuiko et al., The Lu-Sb system, Journal of the Less Common Metals 166, 229-232 (1990).
cited as the source of values for this phase
doi:10.1016/0022-5088(84)90320-5 C. Colinet, A. Pasturel, A. Percheron-Guégan, J.C. Achard, Enthalpies of formation of liquid and solid binary alloys of lead, antimony and bismuth with rare earth elements, Journal of the Less Common Metals 102, 239-249 (1984).
cited as the source of values for this phase

LUSB_B1 (Lu–Sb)

Id: phase:lu-sb:lusb-b1; status assigned
Structure: NaCl · B1 · cF8 · Fm-3m (225); type st:b1-nacl-cf8; tier A: standard phase name; confidence high
Stoichiometry: Lu 0.5000, Sb 0.5000
Stability: stable in 1 of 1 calculated diagram(s): 300–2139.13 K, x(Sb) 0.5–0.5
Literature: 10 values (10 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:lu-sb:lusb-b1
paper: paper:10.1016/j.calphad.2011.05.003:αLuSb
tdb: tdb:LuSb-11Wan.tdb:LUSB_B1

TDB models of LUSB_B1 (1): PHASE and CONSTITUENT statements as written

LuSb-11Wan.tdb: LUSB_B1, type code %, sha256 2d5ed9c2ebfd6144…

55: PHASE LUSB_B1 % 2 1 1 !
56: CONST LUSB_B1 : LU : SB : !

Example references (4 of 4; assessments first):

doi:10.1016/j.calphad.2011.05.003 S.L. Wang, F. Gao, S.X. Gan, C.P. Wang, X.J. Liu, Thermodynamic assessments of the Bi–Lu and Lu–Sb systems, Calphad 35, 421-426 (2011).
assessment that models this phase; reports values for this phase
doi:10.1016/0022-5088(90)90004-4 M.N. Abdusalyamova, N.D. Faslyeva, A.A. Eliseev, E.A. Shishkin, O.I. Rakhmatov, A.G. Chuiko et al., The Lu-Sb system, Journal of the Less Common Metals 166, 229-232 (1990).
cited as the source of values for this phase
doi:10.1016/0022-5088(84)90320-5 C. Colinet, A. Pasturel, A. Percheron-Guégan, J.C. Achard, Enthalpies of formation of liquid and solid binary alloys of lead, antimony and bismuth with rare earth elements, Journal of the Less Common Metals 102, 239-249 (1984).
cited as the source of values for this phase
doi:10.1016/0040-6031(74)85109-9 K.S. Chua, J.N. Pratt, A simple direct-reaction calorimeter and some observations on the heats of formation of IIIA-VB sodium chloride structures, Thermochimica Acta 8, 409-421 (1974).
cited as the source of values for this phase

LUSB_BETA (Lu–Sb)

Id: phase:lu-sb:lusb-beta; status needs_review
No structure assigned. Why: no_structure_token; polymorph_family:other phases of this system have the same composition
Candidate (dft_mp): Fm-3m (225) — on-hull MP LuSb at x(SB)=0.5000
Candidate (dft_oqmd): Fm-3m (225) — on-hull OQMD Lu1 Sb1 at x(SB)=0.5000
Candidate (sgte_mmc2): (LuSb-beta) — Hallstedt 2025 mmc2 row for LUSB_BETA: LuSb-beta
Stoichiometry: Lu 0.5000, Sb 0.5000
Stability: stable in 1 of 1 calculated diagram(s): 2139.13–2453.24 K, x(Sb) 0.5–0.5
Literature: 4 values (4 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:lu-sb:lusb-beta
paper: paper:10.1016/j.calphad.2011.05.003:βLuSb
tdb: tdb:LuSb-11Wan.tdb:LUSB_BETA

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

LuSb-11Wan.tdb: LUSB_BETA, type code %, sha256 2d5ed9c2ebfd6144…

60: PHASE LUSB_BETA % 2 1 1 !
61: CONST LUSB_BETA : LU : SB : !

Example references (2 of 2; assessments first):

doi:10.1016/j.calphad.2011.05.003 S.L. Wang, F. Gao, S.X. Gan, C.P. Wang, X.J. Liu, Thermodynamic assessments of the Bi–Lu and Lu–Sb systems, Calphad 35, 421-426 (2011).
assessment that models this phase; reports values for this phase
doi:10.1016/0022-5088(90)90004-4 M.N. Abdusalyamova, N.D. Faslyeva, A.A. Eliseev, E.A. Shishkin, O.I. Rakhmatov, A.G. Chuiko et al., The Lu-Sb system, Journal of the Less Common Metals 166, 229-232 (1990).
cited as the source of values for this phase

LUSB2 (Lu–Sb)

Id: phase:lu-sb:lusb2; status assigned
Structure: HoSb2 · oC6 · C222 (21); type st:hosb2-oc6; 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: Lu 0.3333, Sb 0.6667
Stability: stable in 1 of 1 calculated diagram(s): 300–1202.47 K, x(Sb) 0.66667–0.66667
Literature: 9 values (9 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:lu-sb:lusb2
paper: paper:10.1016/j.calphad.2011.05.003:LuSb2
tdb: tdb:LuSb-11Wan.tdb:LUSB2

TDB models of LUSB2 (1): PHASE and CONSTITUENT statements as written

LuSb-11Wan.tdb: LUSB2, type code %, sha256 2d5ed9c2ebfd6144…

65: PHASE LUSB2 % 2 1 2 !
66: CONST LUSB2 : LU : SB : !

Example references (3 of 3; assessments first):

doi:10.1016/j.calphad.2011.05.003 S.L. Wang, F. Gao, S.X. Gan, C.P. Wang, X.J. Liu, Thermodynamic assessments of the Bi–Lu and Lu–Sb systems, Calphad 35, 421-426 (2011).
assessment that models this phase; reports values for this phase
doi:10.1016/0022-5088(90)90004-4 M.N. Abdusalyamova, N.D. Faslyeva, A.A. Eliseev, E.A. Shishkin, O.I. Rakhmatov, A.G. Chuiko et al., The Lu-Sb system, Journal of the Less Common Metals 166, 229-232 (1990).
cited as the source of values for this phase
doi:10.1016/0022-5088(84)90320-5 C. Colinet, A. Pasturel, A. Percheron-Guégan, J.C. Achard, Enthalpies of formation of liquid and solid binary alloys of lead, antimony and bismuth with rare earth elements, Journal of the Less Common Metals 102, 239-249 (1984).
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}
}