B–La phases
9 phases (tier A 5, liquid 1, needs_review 3); 9 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 · B–La system page · Markdown · field reference
| Phase | Structure | Basis | Stability (calculated) | Literature values | TDB models |
|---|---|---|---|---|---|
| ALPHA_RHOMBO_B phase:b-la:b-alpha-rhombo | needs_review | stable in 3 of 3 calculated diagram(s): 300–1388 K, x(B) 1–1 | 0 | 3 | |
| BETA_RHOMBO_B phase:b-la:b-beta-rhombo | needs_review | stable in 3 of 3 calculated diagram(s): 1388–2351.4 K, x(B) 1–1 | 0 | 3 | |
| BCC_A2 phase:b-la:bcc-a2 | W · A2 · cI2 · Im-3m (229) | tier A: standard phase name | stable in 3 of 3 calculated diagram(s): 1133.89–3999.02 K, x(B) 0–6e-05 | 0 | 3 |
| DHCP phase:b-la:dhcp-a3 | alpha-La · A3' · hP4 · P6_3/mmc (194) | tier A: standard phase name | stable in 3 of 3 calculated diagram(s): 300–550 K, x(B) 0–0 | 0 | 3 |
| FCC_A1 phase:b-la:fcc-a1 | Cu · A1 · cF4 · Fm-3m (225) | tier A: standard phase name | stable in 3 of 3 calculated diagram(s): 550–1189 K, x(B) 0–0 | 0 | 3 |
| LAB4_D1E phase:b-la:lab4-d1e | UB4 · D1_e · tP20 · P4/mbm (127) | tier A: standard phase name | stable in 3 of 3 calculated diagram(s): 300–2076.53 K, x(B) 0.8–0.8 | 0 | 3 |
| LAB6_D21 phase:b-la:lab6-d21 | CaB6 · D2_1 · cP7 · Pm-3m (221) | tier A: standard phase name | stable in 3 of 3 calculated diagram(s): 300–2996.53 K, x(B) 0.85714–0.85714 | 0 | 3 |
| LAB9 phase:b-la:lab9 | needs_review | stable in 3 of 3 calculated diagram(s): 300–2278.19 K, x(B) 0.9–0.9 | 3 | 3 | |
| LIQUID phase:b-la:liquid | liquid | liquid | stable in 3 of 3 calculated diagram(s): 1181.92–4000 K, x(B) 0–1 | 0 | 3 |
ALPHA_RHOMBO_B (B–La)
- Id:
phase:b-la:b-alpha-rhombo; statusneeds_review - No structure assigned. Why: name_has_descriptive_tokens:RHOMBO; no_structure_token
- Candidate (sgte_mmc2): alpha-B · hR12 · R-3m (166) — Hallstedt 2025 mmc2 row for ALPHA_RHOMBO_B: Si_nB
- Candidate (tdb_comment): alpha-B · hR12 · R-3m — LaB-13Tan-ass.tdb: 'Prototype alpha-B (hR12, R-3m)'
- Candidate (tdb_comment): alpha-B · hR12 · R-3m — LaB-13Tan.tdb: 'Prototype alpha-B (hR12, R-3m)'
- Candidate (tdb_comment): alpha-B · hR12 · R-3m — LaB-22Wei.tdb: 'Prototype alpha-B (hR12, R-3m)'
- Stoichiometry: B 1.0000
- Stability: stable in 3 of 3 calculated diagram(s): 300–1388 K, x(B) 1–1
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: phase registry entry
Names (4): corpus: corpus:phase:b-la:b-alpha-rhombo
tdb: tdb:LaB-13Tan-ass.tdb:ALPHA_RHOMBO_B, tdb:LaB-13Tan.tdb:ALPHA_RHOMBO_B, tdb:LaB-22Wei.tdb:ALPHA_RHOMBO_B
TDB models of ALPHA_RHOMBO_B (3): PHASE and CONSTITUENT statements as written
LaB-13Tan-ass.tdb: ALPHA_RHOMBO_B, type code %, sha256 2d1e87d88d879bc6…
48: PHASE ALPHA_RHOMBO_B % 1 1 ! 49: CONST ALPHA_RHOMBO_B : B : !
LaB-13Tan.tdb: ALPHA_RHOMBO_B, type code %, sha256 0355c303dc2e9bd6…
44: PHASE ALPHA_RHOMBO_B % 1 1 ! 45: CONST ALPHA_RHOMBO_B : B : !
LaB-22Wei.tdb: ALPHA_RHOMBO_B, type code %, sha256 42e4d2e3bdda51ca…
43: PHASE ALPHA_RHOMBO_B % 1 1 ! 44: CONST ALPHA_RHOMBO_B : B : !
Example references (2 of 2; assessments first):
- doi:10.1007/s11669-013-0231-4 Ying Tang, Biao Hu, Jiong Wang, Qiannan Gao, Yong Du, Xiaoming Yuan et al., Thermodynamic Modeling of the La-B and La-Bi Systems Supported by First-Principles Calculations, J. Phase Equilib. Diffus. 34, 297-306 (2013).
assessment that models this phase - doi:10.1515/ijmr-2021-8340 Q. Wei, M.H. Rong, S. Li, D. Su, Q.R. Yao, J. Wang, Q. Chen, G.H. Rao, H.Y. Zhou, Int. J. Mater. Res., 113, 400-418(2022).
assessment that models this phase
BETA_RHOMBO_B (B–La)
- Id:
phase:b-la:b-beta-rhombo; statusneeds_review - No structure assigned. Why: name_has_descriptive_tokens:RHOMBO; no_structure_token
- Candidate (sgte_mmc2): beta-B · hR105 · R-3m (166) — Hallstedt 2025 mmc2 row for BETA_RHOMBO_B: beta-B
- Candidate (tdb_comment): beta-B · hR105 · R-3m — LaB-13Tan-ass.tdb: 'Prototype beta-B (hR105, R-3m)'
- Candidate (tdb_comment): beta-B · hR105 · R-3m — LaB-13Tan.tdb: 'Prototype beta-B (hR105, R-3m)'
- Candidate (tdb_comment): beta-B · hR105 · R-3m — LaB-22Wei.tdb: 'Prototype beta-B (hR105, R-3m)'
- Stoichiometry: B 1.0000
- Stability: stable in 3 of 3 calculated diagram(s): 1388–2351.4 K, x(B) 1–1
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: phase registry entry
Names (4): corpus: corpus:phase:b-la:b-beta-rhombo
tdb: tdb:LaB-13Tan-ass.tdb:BETA_RHOMBO_B, tdb:LaB-13Tan.tdb:BETA_RHOMBO_B, tdb:LaB-22Wei.tdb:BETA_RHOMBO_B
TDB models of BETA_RHOMBO_B (3): PHASE and CONSTITUENT statements as written
LaB-13Tan-ass.tdb: BETA_RHOMBO_B, type code %, sha256 2d1e87d88d879bc6…
53: PHASE BETA_RHOMBO_B % 1 1 ! 54: CONST BETA_RHOMBO_B : B : !
LaB-13Tan.tdb: BETA_RHOMBO_B, type code %, sha256 0355c303dc2e9bd6…
49: PHASE BETA_RHOMBO_B % 1 1 ! 50: CONST BETA_RHOMBO_B : B : !
LaB-22Wei.tdb: BETA_RHOMBO_B, type code %, sha256 42e4d2e3bdda51ca…
48: PHASE BETA_RHOMBO_B % 1 1 ! 49: CONST BETA_RHOMBO_B : B : !
Example references (2 of 2; assessments first):
- doi:10.1007/s11669-013-0231-4 Ying Tang, Biao Hu, Jiong Wang, Qiannan Gao, Yong Du, Xiaoming Yuan et al., Thermodynamic Modeling of the La-B and La-Bi Systems Supported by First-Principles Calculations, J. Phase Equilib. Diffus. 34, 297-306 (2013).
assessment that models this phase - doi:10.1515/ijmr-2021-8340 Q. Wei, M.H. Rong, S. Li, D. Su, Q.R. Yao, J. Wang, Q. Chen, G.H. Rao, H.Y. Zhou, Int. J. Mater. Res., 113, 400-418(2022).
assessment that models this phase
BCC_A2 (B–La)
- Id:
phase:b-la:bcc-a2; statusassigned - Structure: W · A2 · cI2 · Im-3m (229); type
st:a2-w-ci2; tier A: standard phase name; confidence high - Stability: stable in 3 of 3 calculated diagram(s): 1133.89–3999.02 K, x(B) 0–6e-05
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: phase registry entry
Names (4): corpus: corpus:phase:b-la:bcc-a2
tdb: tdb:LaB-13Tan-ass.tdb:BCC_A2, tdb:LaB-13Tan.tdb:BCC_A2, tdb:LaB-22Wei.tdb:BCC_A2
TDB models of BCC_A2 (3): PHASE and CONSTITUENT statements as written
LaB-13Tan-ass.tdb: BCC_A2, type code %B, sha256 2d1e87d88d879bc6…
38: PHASE BCC_A2 %B 2 1 3 ! 39: CONST BCC_A2 : LA : VA : !
LaB-13Tan.tdb: BCC_A2, type code %B, sha256 0355c303dc2e9bd6…
34: PHASE BCC_A2 %B 2 1 3 ! 35: CONST BCC_A2 : LA : VA : !
LaB-22Wei.tdb: BCC_A2, type code %B, sha256 42e4d2e3bdda51ca…
33: PHASE BCC_A2 %B 2 1 3 ! 34: CONST BCC_A2 : B LA% : VA : !
Example references (2 of 2; assessments first):
- doi:10.1007/s11669-013-0231-4 Ying Tang, Biao Hu, Jiong Wang, Qiannan Gao, Yong Du, Xiaoming Yuan et al., Thermodynamic Modeling of the La-B and La-Bi Systems Supported by First-Principles Calculations, J. Phase Equilib. Diffus. 34, 297-306 (2013).
assessment that models this phase - doi:10.1515/ijmr-2021-8340 Q. Wei, M.H. Rong, S. Li, D. Su, Q.R. Yao, J. Wang, Q. Chen, G.H. Rao, H.Y. Zhou, Int. J. Mater. Res., 113, 400-418(2022).
assessment that models this phase
DHCP (B–La)
- Id:
phase:b-la:dhcp-a3; statusassigned - 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 3 of 3 calculated diagram(s): 300–550 K, x(B) 0–0
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: phase registry entry
Names (4): corpus: corpus:phase:b-la:dhcp-a3
tdb: tdb:LaB-13Tan-ass.tdb:DHCP, tdb:LaB-13Tan.tdb:DHCP, tdb:LaB-22Wei.tdb:DHCP
TDB models of DHCP (3): PHASE and CONSTITUENT statements as written
LaB-13Tan-ass.tdb: DHCP, type code %, sha256 2d1e87d88d879bc6…
43: PHASE DHCP % 1 1 ! 44: CONST DHCP : LA : !
LaB-13Tan.tdb: DHCP, type code %, sha256 0355c303dc2e9bd6…
39: PHASE DHCP % 1 1 ! 40: CONST DHCP : LA : !
LaB-22Wei.tdb: DHCP, type code %, sha256 42e4d2e3bdda51ca…
38: PHASE DHCP % 1 1 ! 39: CONST DHCP : LA : !
Example references (2 of 2; assessments first):
- doi:10.1007/s11669-013-0231-4 Ying Tang, Biao Hu, Jiong Wang, Qiannan Gao, Yong Du, Xiaoming Yuan et al., Thermodynamic Modeling of the La-B and La-Bi Systems Supported by First-Principles Calculations, J. Phase Equilib. Diffus. 34, 297-306 (2013).
assessment that models this phase - doi:10.1515/ijmr-2021-8340 Q. Wei, M.H. Rong, S. Li, D. Su, Q.R. Yao, J. Wang, Q. Chen, G.H. Rao, H.Y. Zhou, Int. J. Mater. Res., 113, 400-418(2022).
assessment that models this phase
FCC_A1 (B–La)
- Id:
phase:b-la:fcc-a1; statusassigned - Structure: Cu · A1 · cF4 · Fm-3m (225); type
st:a1-cu-cf4; tier A: standard phase name; confidence high - Stoichiometry: La 1.0000
- Stability: stable in 3 of 3 calculated diagram(s): 550–1189 K, x(B) 0–0
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: phase registry entry
Names (4): corpus: corpus:phase:b-la:fcc-a1
tdb: tdb:LaB-13Tan-ass.tdb:FCC_A1, tdb:LaB-13Tan.tdb:FCC_A1, tdb:LaB-22Wei.tdb:FCC_A1
TDB models of FCC_A1 (3): PHASE and CONSTITUENT statements as written
LaB-13Tan-ass.tdb: FCC_A1, type code %A, sha256 2d1e87d88d879bc6…
33: PHASE FCC_A1 %A 2 1 1 ! 34: CONST FCC_A1 : LA : VA : !
LaB-13Tan.tdb: FCC_A1, type code %A, sha256 0355c303dc2e9bd6…
29: PHASE FCC_A1 %A 2 1 1 ! 30: CONST FCC_A1 : LA : VA : !
LaB-22Wei.tdb: FCC_A1, type code %A, sha256 42e4d2e3bdda51ca…
28: PHASE FCC_A1 %A 2 1 1 ! 29: CONST FCC_A1 : LA : VA : !
Example references (2 of 2; assessments first):
- doi:10.1007/s11669-013-0231-4 Ying Tang, Biao Hu, Jiong Wang, Qiannan Gao, Yong Du, Xiaoming Yuan et al., Thermodynamic Modeling of the La-B and La-Bi Systems Supported by First-Principles Calculations, J. Phase Equilib. Diffus. 34, 297-306 (2013).
assessment that models this phase - doi:10.1515/ijmr-2021-8340 Q. Wei, M.H. Rong, S. Li, D. Su, Q.R. Yao, J. Wang, Q. Chen, G.H. Rao, H.Y. Zhou, Int. J. Mater. Res., 113, 400-418(2022).
assessment that models this phase
LAB4_D1E (B–La)
- Id:
phase:b-la:lab4-d1e; statusassigned - Structure: UB4 · D1_e · tP20 · P4/mbm (127); type
st:d1-e-ub4-tp20; tier A: standard phase name; confidence high - Caveat: DFT agrees: on-hull mp-aaaaakud and oqmd-2155, space group 127
- Stoichiometry: B 0.8000, La 0.2000
- Stability: stable in 3 of 3 calculated diagram(s): 300–2076.53 K, x(B) 0.8–0.8
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: phase registry entry
Names (6): corpus: corpus:phase:b-la:lab4-d1e
mp: mp:mp-aaaaakud
oqmd: oqmd:oqmd-2155
tdb: tdb:LaB-13Tan-ass.tdb:LAB4_D1E, tdb:LaB-13Tan.tdb:LAB4_D1E, tdb:LaB-22Wei.tdb:LAB4_D1E
TDB models of LAB4_D1E (3): PHASE and CONSTITUENT statements as written
LaB-13Tan-ass.tdb: LAB4_D1E, type code %, sha256 2d1e87d88d879bc6…
58: PHASE LAB4_D1E % 2 1 4 ! 59: CONST LAB4_D1E : LA : B : !
LaB-13Tan.tdb: LAB4_D1E, type code %, sha256 0355c303dc2e9bd6…
54: PHASE LAB4_D1E % 2 1 4 ! 55: CONST LAB4_D1E : LA : B : !
LaB-22Wei.tdb: LAB4_D1E, type code %, sha256 42e4d2e3bdda51ca…
53: PHASE LAB4_D1E % 2 1 4 ! 54: CONST LAB4_D1E : LA : B : !
Example references (2 of 2; assessments first):
- doi:10.1007/s11669-013-0231-4 Ying Tang, Biao Hu, Jiong Wang, Qiannan Gao, Yong Du, Xiaoming Yuan et al., Thermodynamic Modeling of the La-B and La-Bi Systems Supported by First-Principles Calculations, J. Phase Equilib. Diffus. 34, 297-306 (2013).
assessment that models this phase - doi:10.1515/ijmr-2021-8340 Q. Wei, M.H. Rong, S. Li, D. Su, Q.R. Yao, J. Wang, Q. Chen, G.H. Rao, H.Y. Zhou, Int. J. Mater. Res., 113, 400-418(2022).
assessment that models this phase
LAB6_D21 (B–La)
- Id:
phase:b-la:lab6-d21; statusassigned - Structure: CaB6 · D2_1 · cP7 · Pm-3m (221); type
st:d2-1-cab6-cp7; tier A: standard phase name; confidence high - Caveat: DFT agrees: on-hull mp-aaaaadzc and oqmd-46484, space group 221
- Stoichiometry: B 0.8571, La 0.1429
- Stability: stable in 3 of 3 calculated diagram(s): 300–2996.53 K, x(B) 0.85714–0.85714
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: phase registry entry
Names (6): corpus: corpus:phase:b-la:lab6-d21
mp: mp:mp-aaaaadzc
oqmd: oqmd:oqmd-46484
tdb: tdb:LaB-13Tan-ass.tdb:LAB6_D21, tdb:LaB-13Tan.tdb:LAB6_D21, tdb:LaB-22Wei.tdb:LAB6_D21
TDB models of LAB6_D21 (3): PHASE and CONSTITUENT statements as written
LaB-13Tan-ass.tdb: LAB6_D21, type code %, sha256 2d1e87d88d879bc6…
63: PHASE LAB6_D21 % 2 1 6 ! 64: CONST LAB6_D21 : LA : B : !
LaB-13Tan.tdb: LAB6_D21, type code %, sha256 0355c303dc2e9bd6…
59: PHASE LAB6_D21 % 2 1 6 ! 60: CONST LAB6_D21 : LA : B : !
LaB-22Wei.tdb: LAB6_D21, type code %, sha256 42e4d2e3bdda51ca…
58: PHASE LAB6_D21 % 2 1 6 ! 59: CONST LAB6_D21 : LA : B : !
Example references (2 of 2; assessments first):
- doi:10.1007/s11669-013-0231-4 Ying Tang, Biao Hu, Jiong Wang, Qiannan Gao, Yong Du, Xiaoming Yuan et al., Thermodynamic Modeling of the La-B and La-Bi Systems Supported by First-Principles Calculations, J. Phase Equilib. Diffus. 34, 297-306 (2013).
assessment that models this phase - doi:10.1515/ijmr-2021-8340 Q. Wei, M.H. Rong, S. Li, D. Su, Q.R. Yao, J. Wang, Q. Chen, G.H. Rao, H.Y. Zhou, Int. J. Mater. Res., 113, 400-418(2022).
assessment that models this phase
LAB9 (B–La)
- Id:
phase:b-la:lab9; statusneeds_review - No structure assigned. Why: no_on_hull_entry_in_both; no_structure_token; sgte_mmc2_row_incomplete
- Candidate (sgte_mmc2): (LaB9) — Hallstedt 2025 mmc2 row for LAB9: LaB9
- Stoichiometry: B 0.9000, La 0.1000
- Stability: stable in 3 of 3 calculated diagram(s): 300–2278.19 K, x(B) 0.9–0.9
- Literature: 3 values (3 accepted) from 1 papers
- Interactive: phase registry entry
Names (5): corpus: corpus:phase:b-la:lab9
paper: paper:10.1007/s11669-013-0231-4:LaB9
tdb: tdb:LaB-13Tan-ass.tdb:LAB9, tdb:LaB-13Tan.tdb:LAB9, tdb:LaB-22Wei.tdb:LAB9
TDB models of LAB9 (3): PHASE and CONSTITUENT statements as written
LaB-13Tan-ass.tdb: LAB9, type code %, sha256 2d1e87d88d879bc6…
68: PHASE LAB9 % 2 1 9 ! 69: CONST LAB9 : LA : B : !
LaB-13Tan.tdb: LAB9, type code %, sha256 0355c303dc2e9bd6…
64: PHASE LAB9 % 2 1 9 ! 65: CONST LAB9 : LA : B : !
LaB-22Wei.tdb: LAB9, type code %, sha256 42e4d2e3bdda51ca…
63: PHASE LAB9 % 2 1 9 ! 64: CONST LAB9 : LA : B : !
Example references (2 of 2; assessments first):
- doi:10.1007/s11669-013-0231-4 Ying Tang, Biao Hu, Jiong Wang, Qiannan Gao, Yong Du, Xiaoming Yuan et al., Thermodynamic Modeling of the La-B and La-Bi Systems Supported by First-Principles Calculations, J. Phase Equilib. Diffus. 34, 297-306 (2013).
assessment that models this phase; reports values for this phase - doi:10.1515/ijmr-2021-8340 Q. Wei, M.H. Rong, S. Li, D. Su, Q.R. Yao, J. Wang, Q. Chen, G.H. Rao, H.Y. Zhou, Int. J. Mater. Res., 113, 400-418(2022).
assessment that models this phase
LIQUID (B–La)
- Id:
phase:b-la:liquid; statusassigned - Structure: liquid; type
st:liquid; liquid; confidence high - Stability: stable in 3 of 3 calculated diagram(s): 1181.92–4000 K, x(B) 0–1
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: phase registry entry
Names (4): corpus: corpus:phase:b-la:liquid
tdb: tdb:LaB-13Tan-ass.tdb:LIQUID, tdb:LaB-13Tan.tdb:LIQUID, tdb:LaB-22Wei.tdb:LIQUID
TDB models of LIQUID (3): PHASE and CONSTITUENT statements as written
LaB-13Tan-ass.tdb: LIQUID, type code %, sha256 2d1e87d88d879bc6…
28: PHASE LIQUID:L % 1 1 ! 29: CONST LIQUID:L : B LA LAB6 : !
LaB-13Tan.tdb: LIQUID, type code %, sha256 0355c303dc2e9bd6…
24: PHASE LIQUID:L % 1 1 ! 25: CONST LIQUID:L : B LA : !
LaB-22Wei.tdb: LIQUID, type code %, sha256 42e4d2e3bdda51ca…
23: PHASE LIQUID:L % 1 1 ! 24: CONST LIQUID:L : B LA : !
Example references (2 of 2; assessments first):
- doi:10.1007/s11669-013-0231-4 Ying Tang, Biao Hu, Jiong Wang, Qiannan Gao, Yong Du, Xiaoming Yuan et al., Thermodynamic Modeling of the La-B and La-Bi Systems Supported by First-Principles Calculations, J. Phase Equilib. Diffus. 34, 297-306 (2013).
assessment that models this phase - doi:10.1515/ijmr-2021-8340 Q. Wei, M.H. Rong, S. Li, D. Su, Q.R. Yao, J. Wang, Q. Chen, G.H. Rao, H.Y. Zhou, Int. J. Mater. Res., 113, 400-418(2022).
assessment that models this phase