# B–Ti phases
> B–Ti system: 10 phases (tier A 5, tier C 3, liquid 1, needs_review 1); 9 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/B-TI.html · Markdown: https://data.orchid-project.org/phases/pages/B-TI.md
10 phases (tier A 5, tier C 3, liquid 1, needs_review 1); 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](https://orchid-project.org/phases/?q=B-TI) · [full JSON](https://data.orchid-project.org/phases/systems/B-TI.json) · [B–Ti system page](https://data.orchid-project.org/systems/B-TI.html) · [Markdown](https://data.orchid-project.org/phases/pages/B-TI.md) · [field reference](https://data.orchid-project.org/phases/SCHEMA.md)
Table: Phases of the B–Ti system (10)
| Phase | Structure | Basis | Stability (calculated) | Literature values | TDB models |
|---|---|---|---|---:|---:|
| [BETA_RHOMBO_B](#phase-b-ti-b-beta-rhombo); _phase:b-ti:b-beta-rhombo_ | | needs_review | stable in 7 of 7 calculated diagram(s): 300–2549.98 K, x(B) 1–1 | 7 | 7 |
| [MB_B27](#phase-b-ti-b27-mb); _phase:b-ti:b27-mb_ | FeB · B27 · oP8 · Pnma (62) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 2 of 2 calculated diagram(s): 300–2456.06 K, x(B) 0.5–0.5 | 2 | 2 |
| [BCC_A2](#phase-b-ti-bcc-a2); _phase:b-ti:bcc-a2_ | W · A2 · cI2 · Im-3m (229) | tier A: standard phase name | stable in 7 of 7 calculated diagram(s): 300.18–3999.73 K, x(B) 0–0.0108 | 18 | 7 |
| [MB2_C32](#phase-b-ti-c32-mb2); _phase:b-ti:c32-mb2_ | AlB2 · C32 · hP3 · P6/mmm (191) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 1 of 1 calculated diagram(s): 300–3488.99 K, x(B) 0.66667–0.66667 | 0 | 1 |
| [FCC_A1](#phase-b-ti-fcc-a1); _phase:b-ti:fcc-a1_ | Cu · A1 · cF4 · Fm-3m (225) | tier A: standard phase name | not stable in 7 calculated diagram(s) | 0 | 7 |
| [HCP_A3](#phase-b-ti-hcp-a3); _phase:b-ti:hcp-a3_ | Mg · A3 · hP2 · P6_3/mmc (194) | tier A: standard phase name | stable in 7 of 7 calculated diagram(s): 300–1157.68 K, x(B) 0–0.00164 | 6 | 7 |
| [LIQUID](#phase-b-ti-liquid); _phase:b-ti:liquid_ | liquid | liquid | stable in 7 of 7 calculated diagram(s): 1780–4000 K, x(B) 0–1 | 64 | 7 |
| [TI3B4_D7B](#phase-b-ti-ti3b4-d7b); _phase:b-ti:ti3b4-d7b_ | Ta3B4 · D7_b · oI14 · Immm (71) | tier A: standard phase name | stable in 7 of 7 calculated diagram(s): 300–2481.63 K, x(B) 0.57143–0.57143 | 19 | 7 |
| [TIB_B27](#phase-b-ti-tib-b27); _phase:b-ti:tib-b27_ | FeB · B27 · oP8 · Pnma (62) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 5 of 5 calculated diagram(s): 300–2459.71 K, x(B) 0.48221–0.5 | 32 | 5 |
| [TIB2_C32](#phase-b-ti-tib2-c32); _phase:b-ti:tib2-c32_ | AlB2 · C32 · hP3 · P6/mmm (191) | tier A: standard phase name | stable in 6 of 6 calculated diagram(s): 300–3496.05 K, x(B) 0.63954–0.6769 | 48 | 6 |
## BETA_RHOMBO_B (B–Ti)
- Id: `phase:b-ti:b-beta-rhombo`; status `needs_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 — TiB-04Ma.tdb: 'Prototype beta-B (hR105, R-3m)'
- Candidate (tdb_comment): beta-B · hR105 · R-3m — TiB-08Wit.tdb: 'Prototype beta-B (hR105, R-3m)'
- Candidate (tdb_comment): beta-B · hR105 · R-3m — TiB-09Nak.tdb: 'Prototype beta-B (hR105, R-3m)'
- Candidate (tdb_comment): beta-B · hR105 · R-3m — TiB-11Cac.tdb: 'Prototype beta-B (hR105, R-3m)'
- Candidate (tdb_comment): beta-B · hR105 · R-3m — TiB-16Wit.tdb: 'Prototype beta-B (hR105, R-3m)'
- Candidate (tdb_comment): beta-B · hR105 · R-3m — TiB-19Wit.tdb: 'Prototype beta-B (hR105, R-3m)'
- Candidate (tdb_comment): beta-B · hR105 · R-3m — TiB-94Bat-LB.tdb: 'Prototype beta-B (hR105, R-3m)'
- Stability: stable in 7 of 7 calculated diagram(s): 300–2549.98 K, x(B) 1–1
- Literature: 7 values (6 accepted) from 3 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:b-ti:b-beta-rhombo)
Names (12): _corpus: _corpus:phase:b-ti:b-beta-rhombo, corpus:phase:b-ti:beta-rhombo-b
_paper: _paper:10.1016/j.calphad.2011.10.003:B, paper:10.1016/j.jallcom.2003.09.017:(βB), paper:10.1016/j.jallcom.2006.10.034:(β-B)
_tdb: _tdb:TiB-04Ma.tdb:BETA_RHOMBO_B, tdb:TiB-08Wit.tdb:BETA_RHOMBO_B, tdb:TiB-09Nak.tdb:BETA_RHOMBO_B, tdb:TiB-11Cac.tdb:BETA_RHOMBO_B, tdb:TiB-16Wit.tdb:BETA_RHOMBO_B, tdb:TiB-19Wit.tdb:BETA_RHOMBO_B, tdb:TiB-94Bat-LB.tdb:BETA_RHOMBO_B
### TDB models of BETA_RHOMBO_B (7): PHASE and CONSTITUENT statements as written
[TiB-04Ma.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-04Ma.tdb): BETA_RHOMBO_B, type code %, sha256 `1bea624752196864…`
~~~~text
46: PHASE BETA_RHOMBO_B % 1 1 !
47: CONST BETA_RHOMBO_B : B : !
~~~~
[TiB-08Wit.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-08Wit.tdb): BETA_RHOMBO_B, type code %, sha256 `1d8367fa30ef15c2…`
~~~~text
44: PHASE BETA_RHOMBO_B % 1 1 !
45: CONST BETA_RHOMBO_B : B% TI : !
~~~~
[TiB-09Nak.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-09Nak.tdb): BETA_RHOMBO_B, type code %, sha256 `1b4af84d09dba0c7…`
~~~~text
45: PHASE BETA_RHOMBO_B % 1 1 !
46: CONST BETA_RHOMBO_B : B : !
~~~~
[TiB-11Cac.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-11Cac.tdb): BETA_RHOMBO_B, type code %, sha256 `4e632683d15fe800…`
~~~~text
46: PHASE BETA_RHOMBO_B % 1 1 !
47: CONST BETA_RHOMBO_B : B : !
~~~~
[TiB-16Wit.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-16Wit.tdb): BETA_RHOMBO_B, type code %, sha256 `f17559a1695b8573…`
~~~~text
44: PHASE BETA_RHOMBO_B % 1 1 !
45: CONST BETA_RHOMBO_B : B% TI : !
~~~~
[TiB-19Wit.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-19Wit.tdb): BETA_RHOMBO_B, type code %, sha256 `13ea870c397a4aba…`
~~~~text
44: PHASE BETA_RHOMBO_B % 1 1 !
45: CONST BETA_RHOMBO_B : B% TI : !
~~~~
[TiB-94Bat-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-94Bat-LB.tdb): BETA_RHOMBO_B, type code %, sha256 `0fb6180a65bd872e…`
~~~~text
42: PHASE BETA_RHOMBO_B % 2 93 12 !
43: CONST BETA_RHOMBO_B : B : B : !
~~~~
Example references (6 of 6; assessments first):
- [doi:10.1016/j.jallcom.2006.10.034](https://doi.org/10.1016/j.jallcom.2006.10.034) V.T. Witusiewicz, A.A. Bondar, U. Hecht, S. Rex, T.Ya. Velikanova, The Al–B–Nb–Ti system, Journal of Alloys and Compounds 448, 185-194 (2008).
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.jallcom.2003.09.017](https://doi.org/10.1016/j.jallcom.2003.09.017) Xiaoyan Ma, Changrong Li, Zhenmin Du, Weijing Zhang, Thermodynamic assessment of the Ti–B system, Journal of Alloys and Compounds 370, 149-158 (2004).
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1016/j.calphad.2011.10.003](https://doi.org/10.1016/j.calphad.2011.10.003) G. Cacciamani, P. Riani, F. Valenza, Equilibrium between MB2 (M=Ti,Zr,Hf) UHTC and Ni: A thermodynamic database for the B–Hf–Ni–Ti–Zr system, Calphad 35, 601-619 (2011).
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.jallcom.2015.09.158](https://doi.org/10.1016/j.jallcom.2015.09.158) V.T. Witusiewicz, A.A. Bondar, U. Hecht, O.A. Potazhevska, T.Ya Velikanova, Thermodynamic modelling of the ternary B–Mo–Ti system with refined B–Mo description, Journal of Alloys and Compounds 655, 336-352 (2016).
_assessment that models this phase_
- [doi:10.1016/j.jallcom.2019.05.341](https://doi.org/10.1016/j.jallcom.2019.05.341) V.T. Witusiewicz, A.A. Bondar, U. Hecht, A. Theofilatos, N.I. Tsyganenko, S.V. Utkin et al., Experimental study and thermodynamic re-modelling of the constituent binaries and ternary B–Fe–Ti system, Journal of Alloys and Compounds 800, 419-449 (2019).
_assessment that models this phase_
- [doi:10.2320/matertrans.MC200820](https://doi.org/10.2320/matertrans.MC200820) Y. Nakama, H. Ohtani, M. Hasebe, Mater. Trans. (JIM), 50, 984-93(2009).
_assessment that models this phase_
## MB_B27 (B–Ti)
- Id: `phase:b-ti:b27-mb`; status `assigned`
- Structure: FeB · B27 · oP8 · Pnma (62); type `st:b27-feb-op8`; 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 (name_has_descriptive_tokens:MB, no_structure_token, structure_token_is_also_a_formula); structure as stated in the SGTE crystallographic table for this phase name and system
- Stoichiometry: B 0.5000, Ti 0.5000
- Stability: stable in 2 of 2 calculated diagram(s): 300–2456.06 K, x(B) 0.5–0.5
- Literature: 2 values (2 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:b-ti:b27-mb)
Names (5): _corpus: _corpus:phase:b-ti:b27-mb, corpus:phase:b-ti:mb-b27
_paper: _paper:10.1016/j.calphad.2011.10.003:TiB
_tdb: _tdb:TiB-11Cac.tdb:MB_B27, tdb:TiB-94Bat-LB.tdb:MB_B27
### TDB models of MB_B27 (2): PHASE and CONSTITUENT statements as written
[TiB-11Cac.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-11Cac.tdb): MB_B27, type code %, sha256 `4e632683d15fe800…`
~~~~text
51: PHASE MB_B27 % 2 1 1 !
52: CONST MB_B27 : TI : B : !
~~~~
[TiB-94Bat-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-94Bat-LB.tdb): MB_B27, type code %, sha256 `0fb6180a65bd872e…`
~~~~text
47: PHASE MB_B27 % 2 1 1 !
48: CONST MB_B27 : TI : B : !
~~~~
Example references (1 of 1; assessments first):
- [doi:10.1016/j.calphad.2011.10.003](https://doi.org/10.1016/j.calphad.2011.10.003) G. Cacciamani, P. Riani, F. Valenza, Equilibrium between MB2 (M=Ti,Zr,Hf) UHTC and Ni: A thermodynamic database for the B–Hf–Ni–Ti–Zr system, Calphad 35, 601-619 (2011).
_assessment that models this phase; reports values for this phase_
## BCC_A2 (B–Ti)
- Id: `phase:b-ti: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 7 of 7 calculated diagram(s): 300.18–3999.73 K, x(B) 0–0.0108
- Literature: 18 values (18 accepted) from 5 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:b-ti:bcc-a2)
Names (13): _corpus: _corpus:phase:b-ti:bcc-a2
_paper: _paper:10.1007/bf02646248:βTi, paper:10.1016/j.calphad.2011.10.003:bcc-Ti, paper:10.1016/j.jallcom.2003.09.017:(βTi), paper:10.1016/j.jallcom.2006.10.034:bcc, paper:sha256-85fd53a1a176b694:bcc-A2
_tdb: _tdb:TiB-04Ma.tdb:BCC_A2, tdb:TiB-08Wit.tdb:BCC_A2, tdb:TiB-09Nak.tdb:BCC_A2, tdb:TiB-11Cac.tdb:BCC_A2, tdb:TiB-16Wit.tdb:BCC_A2, tdb:TiB-19Wit.tdb:BCC_A2, tdb:TiB-94Bat-LB.tdb:BCC_A2
### TDB models of BCC_A2 (7): PHASE and CONSTITUENT statements as written
[TiB-04Ma.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-04Ma.tdb): BCC_A2, type code %B, sha256 `1bea624752196864…`
~~~~text
36: PHASE BCC_A2 %B 2 1 3 !
37: CONST BCC_A2 : TI% : B VA% : !
~~~~
[TiB-08Wit.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-08Wit.tdb): BCC_A2, type code %B, sha256 `1d8367fa30ef15c2…`
~~~~text
34: PHASE BCC_A2 %B 2 1 3 !
35: CONST BCC_A2 : TI% : B VA% : !
~~~~
[TiB-09Nak.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-09Nak.tdb): BCC_A2, type code %B, sha256 `1b4af84d09dba0c7…`
~~~~text
35: PHASE BCC_A2 %B 2 1 3 !
36: CONST BCC_A2 : B TI% : VA : !
~~~~
[TiB-11Cac.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-11Cac.tdb): BCC_A2, type code %B, sha256 `4e632683d15fe800…`
~~~~text
36: PHASE BCC_A2 %B 2 1 3 !
37: CONST BCC_A2 : TI% : B VA% : !
~~~~
[TiB-16Wit.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-16Wit.tdb): BCC_A2, type code %B, sha256 `f17559a1695b8573…`
~~~~text
34: PHASE BCC_A2 %B 2 1 3 !
35: CONST BCC_A2 : TI% : B VA% : !
~~~~
[TiB-19Wit.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-19Wit.tdb): BCC_A2, type code %B, sha256 `13ea870c397a4aba…`
~~~~text
34: PHASE BCC_A2 %B 2 1 3 !
35: CONST BCC_A2 : TI% : B VA% : !
~~~~
[TiB-94Bat-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-94Bat-LB.tdb): BCC_A2, type code %B, sha256 `0fb6180a65bd872e…`
~~~~text
32: PHASE BCC_A2 %B 2 1 3 !
33: CONST BCC_A2 : TI% : B VA% : !
~~~~
Example references (7 of 7; assessments first):
- [doi:10.1016/j.jallcom.2006.10.034](https://doi.org/10.1016/j.jallcom.2006.10.034) V.T. Witusiewicz, A.A. Bondar, U. Hecht, S. Rex, T.Ya. Velikanova, The Al–B–Nb–Ti system, Journal of Alloys and Compounds 448, 185-194 (2008).
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.jallcom.2003.09.017](https://doi.org/10.1016/j.jallcom.2003.09.017) Xiaoyan Ma, Changrong Li, Zhenmin Du, Weijing Zhang, Thermodynamic assessment of the Ti–B system, Journal of Alloys and Compounds 370, 149-158 (2004).
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1016/j.calphad.2011.10.003](https://doi.org/10.1016/j.calphad.2011.10.003) G. Cacciamani, P. Riani, F. Valenza, Equilibrium between MB2 (M=Ti,Zr,Hf) UHTC and Ni: A thermodynamic database for the B–Hf–Ni–Ti–Zr system, Calphad 35, 601-619 (2011).
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.jallcom.2015.09.158](https://doi.org/10.1016/j.jallcom.2015.09.158) V.T. Witusiewicz, A.A. Bondar, U. Hecht, O.A. Potazhevska, T.Ya Velikanova, Thermodynamic modelling of the ternary B–Mo–Ti system with refined B–Mo description, Journal of Alloys and Compounds 655, 336-352 (2016).
_assessment that models this phase_
- [doi:10.1016/j.jallcom.2019.05.341](https://doi.org/10.1016/j.jallcom.2019.05.341) V.T. Witusiewicz, A.A. Bondar, U. Hecht, A. Theofilatos, N.I. Tsyganenko, S.V. Utkin et al., Experimental study and thermodynamic re-modelling of the constituent binaries and ternary B–Fe–Ti system, Journal of Alloys and Compounds 800, 419-449 (2019).
_assessment that models this phase_
- [doi:10.2320/matertrans.MC200820](https://doi.org/10.2320/matertrans.MC200820) Y. Nakama, H. Ohtani, M. Hasebe, Mater. Trans. (JIM), 50, 984-93(2009).
_assessment that models this phase_
- [doi:10.1007/bf02646248](https://doi.org/10.1007/bf02646248) H. Duschanek, P. Rogl, H. L. Lukas, A critical assessment and thermodynamic calculation of the boron-carbon-titanium (B-C-Ti) ternary system, JPE 16, 46-60 (1995).
_reports values for this phase_
## MB2_C32 (B–Ti)
- Id: `phase:b-ti:c32-mb2`; status `assigned`
- Structure: AlB2 · C32 · hP3 · P6/mmm (191); type `st:c32-alb2-hp3`; 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: DFT agrees: on-hull mp-aaaaabsb and oqmd-5808, space group 191
- Caveat: not certain from the name or DFT alone (unrecognised_name_tokens:MB2); structure as stated in the SGTE crystallographic table for this phase name and system
- Stoichiometry: B 0.6667, Ti 0.3333
- Stability: stable in 1 of 1 calculated diagram(s): 300–3488.99 K, x(B) 0.66667–0.66667
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:b-ti:c32-mb2)
Names (4): _corpus: _corpus:phase:b-ti:c32-mb2
_mp: _mp:mp-aaaaabsb
_oqmd: _oqmd:oqmd-5808
_tdb: _tdb:TiB-94Bat-LB.tdb:MB2_C32
### TDB models of MB2_C32 (1): PHASE and CONSTITUENT statements as written
[TiB-94Bat-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-94Bat-LB.tdb): MB2_C32, type code %, sha256 `0fb6180a65bd872e…`
~~~~text
57: PHASE MB2_C32 % 2 1 2 !
58: CONST MB2_C32 : TI : B : !
~~~~
## FCC_A1 (B–Ti)
- Id: `phase:b-ti:fcc-a1`; status `assigned`
- Structure: Cu · A1 · cF4 · Fm-3m (225); type `st:a1-cu-cf4`; tier A: standard phase name; confidence high
- Stability: not stable in 7 calculated diagram(s)
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:b-ti:fcc-a1)
Names (8): _corpus: _corpus:phase:b-ti:fcc-a1
_tdb: _tdb:TiB-04Ma.tdb:FCC_A1, tdb:TiB-08Wit.tdb:FCC_A1, tdb:TiB-09Nak.tdb:FCC_A1, tdb:TiB-11Cac.tdb:FCC_A1, tdb:TiB-16Wit.tdb:FCC_A1, tdb:TiB-19Wit.tdb:FCC_A1, tdb:TiB-94Bat-LB.tdb:FCC_A1
### TDB models of FCC_A1 (7): PHASE and CONSTITUENT statements as written
[TiB-04Ma.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-04Ma.tdb): FCC_A1, type code %A, sha256 `1bea624752196864…`
~~~~text
31: PHASE FCC_A1 %A 2 1 1 !
32: CONST FCC_A1 : TI : B VA% : !
~~~~
[TiB-08Wit.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-08Wit.tdb): FCC_A1, type code %A, sha256 `1d8367fa30ef15c2…`
~~~~text
29: PHASE FCC_A1 %A 2 1 1 !
30: CONST FCC_A1 : TI : B VA% : !
~~~~
[TiB-09Nak.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-09Nak.tdb): FCC_A1, type code %A, sha256 `1b4af84d09dba0c7…`
~~~~text
30: PHASE FCC_A1 %A 2 1 1 !
31: CONST FCC_A1 : B TI : VA : !
~~~~
[TiB-11Cac.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-11Cac.tdb): FCC_A1, type code %A, sha256 `4e632683d15fe800…`
~~~~text
31: PHASE FCC_A1 %A 2 1 1 !
32: CONST FCC_A1 : TI : B VA% : !
~~~~
[TiB-16Wit.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-16Wit.tdb): FCC_A1, type code %A, sha256 `f17559a1695b8573…`
~~~~text
29: PHASE FCC_A1 %A 2 1 1 !
30: CONST FCC_A1 : TI : B VA% : !
~~~~
[TiB-19Wit.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-19Wit.tdb): FCC_A1, type code %A, sha256 `13ea870c397a4aba…`
~~~~text
29: PHASE FCC_A1 %A 2 1 1 !
30: CONST FCC_A1 : TI : B VA% : !
~~~~
[TiB-94Bat-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-94Bat-LB.tdb): FCC_A1, type code %A, sha256 `0fb6180a65bd872e…`
~~~~text
27: PHASE FCC_A1 %A 2 1 1 !
28: CONST FCC_A1 : TI : B VA% : !
~~~~
Example references (6 of 6; assessments first):
- [doi:10.1016/j.calphad.2011.10.003](https://doi.org/10.1016/j.calphad.2011.10.003) G. Cacciamani, P. Riani, F. Valenza, Equilibrium between MB2 (M=Ti,Zr,Hf) UHTC and Ni: A thermodynamic database for the B–Hf–Ni–Ti–Zr system, Calphad 35, 601-619 (2011).
_assessment that models this phase_
- [doi:10.1016/j.jallcom.2003.09.017](https://doi.org/10.1016/j.jallcom.2003.09.017) Xiaoyan Ma, Changrong Li, Zhenmin Du, Weijing Zhang, Thermodynamic assessment of the Ti–B system, Journal of Alloys and Compounds 370, 149-158 (2004).
_assessment that models this phase_
- [doi:10.1016/j.jallcom.2006.10.034](https://doi.org/10.1016/j.jallcom.2006.10.034) V.T. Witusiewicz, A.A. Bondar, U. Hecht, S. Rex, T.Ya. Velikanova, The Al–B–Nb–Ti system, Journal of Alloys and Compounds 448, 185-194 (2008).
_assessment that models this phase_
- [doi:10.1016/j.jallcom.2015.09.158](https://doi.org/10.1016/j.jallcom.2015.09.158) V.T. Witusiewicz, A.A. Bondar, U. Hecht, O.A. Potazhevska, T.Ya Velikanova, Thermodynamic modelling of the ternary B–Mo–Ti system with refined B–Mo description, Journal of Alloys and Compounds 655, 336-352 (2016).
_assessment that models this phase_
- [doi:10.1016/j.jallcom.2019.05.341](https://doi.org/10.1016/j.jallcom.2019.05.341) V.T. Witusiewicz, A.A. Bondar, U. Hecht, A. Theofilatos, N.I. Tsyganenko, S.V. Utkin et al., Experimental study and thermodynamic re-modelling of the constituent binaries and ternary B–Fe–Ti system, Journal of Alloys and Compounds 800, 419-449 (2019).
_assessment that models this phase_
- [doi:10.2320/matertrans.MC200820](https://doi.org/10.2320/matertrans.MC200820) Y. Nakama, H. Ohtani, M. Hasebe, Mater. Trans. (JIM), 50, 984-93(2009).
_assessment that models this phase_
## HCP_A3 (B–Ti)
- Id: `phase:b-ti: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 7 of 7 calculated diagram(s): 300–1157.68 K, x(B) 0–0.00164
- Literature: 6 values (6 accepted) from 3 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:b-ti:hcp-a3)
Names (11): _corpus: _corpus:phase:b-ti:hcp-a3
_paper: _paper:10.1016/j.jallcom.2003.09.017:(αTi), paper:10.1016/j.jallcom.2006.10.034:hcp, paper:sha256-85fd53a1a176b694:hcp-A3
_tdb: _tdb:TiB-04Ma.tdb:HCP_A3, tdb:TiB-08Wit.tdb:HCP_A3, tdb:TiB-09Nak.tdb:HCP_A3, tdb:TiB-11Cac.tdb:HCP_A3, tdb:TiB-16Wit.tdb:HCP_A3, tdb:TiB-19Wit.tdb:HCP_A3, tdb:TiB-94Bat-LB.tdb:HCP_A3
### TDB models of HCP_A3 (7): PHASE and CONSTITUENT statements as written
[TiB-04Ma.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-04Ma.tdb): HCP_A3, type code %A, sha256 `1bea624752196864…`
~~~~text
41: PHASE HCP_A3 %A 2 1 0.5 !
42: CONST HCP_A3 : TI% : B VA% : !
~~~~
[TiB-08Wit.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-08Wit.tdb): HCP_A3, type code %A, sha256 `1d8367fa30ef15c2…`
~~~~text
39: PHASE HCP_A3 %A 2 1 0.5 !
40: CONST HCP_A3 : TI% : B VA% : !
~~~~
[TiB-09Nak.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-09Nak.tdb): HCP_A3, type code %A, sha256 `1b4af84d09dba0c7…`
~~~~text
40: PHASE HCP_A3 %A 2 1 0.5 !
41: CONST HCP_A3 : B TI% : VA : !
~~~~
[TiB-11Cac.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-11Cac.tdb): HCP_A3, type code %A, sha256 `4e632683d15fe800…`
~~~~text
41: PHASE HCP_A3 %A 2 1 0.5 !
42: CONST HCP_A3 : TI% : B VA% : !
~~~~
[TiB-16Wit.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-16Wit.tdb): HCP_A3, type code %A, sha256 `f17559a1695b8573…`
~~~~text
39: PHASE HCP_A3 %A 2 1 0.5 !
40: CONST HCP_A3 : TI% : B VA% : !
~~~~
[TiB-19Wit.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-19Wit.tdb): HCP_A3, type code %A, sha256 `13ea870c397a4aba…`
~~~~text
39: PHASE HCP_A3 %A 2 1 0.5 !
40: CONST HCP_A3 : TI% : B VA% : !
~~~~
[TiB-94Bat-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-94Bat-LB.tdb): HCP_A3, type code %A, sha256 `0fb6180a65bd872e…`
~~~~text
37: PHASE HCP_A3 %A 2 1 0.5 !
38: CONST HCP_A3 : TI% : B VA% : !
~~~~
Example references (6 of 6; assessments first):
- [doi:10.1016/j.jallcom.2006.10.034](https://doi.org/10.1016/j.jallcom.2006.10.034) V.T. Witusiewicz, A.A. Bondar, U. Hecht, S. Rex, T.Ya. Velikanova, The Al–B–Nb–Ti system, Journal of Alloys and Compounds 448, 185-194 (2008).
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.jallcom.2003.09.017](https://doi.org/10.1016/j.jallcom.2003.09.017) Xiaoyan Ma, Changrong Li, Zhenmin Du, Weijing Zhang, Thermodynamic assessment of the Ti–B system, Journal of Alloys and Compounds 370, 149-158 (2004).
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1016/j.calphad.2011.10.003](https://doi.org/10.1016/j.calphad.2011.10.003) G. Cacciamani, P. Riani, F. Valenza, Equilibrium between MB2 (M=Ti,Zr,Hf) UHTC and Ni: A thermodynamic database for the B–Hf–Ni–Ti–Zr system, Calphad 35, 601-619 (2011).
_assessment that models this phase_
- [doi:10.1016/j.jallcom.2015.09.158](https://doi.org/10.1016/j.jallcom.2015.09.158) V.T. Witusiewicz, A.A. Bondar, U. Hecht, O.A. Potazhevska, T.Ya Velikanova, Thermodynamic modelling of the ternary B–Mo–Ti system with refined B–Mo description, Journal of Alloys and Compounds 655, 336-352 (2016).
_assessment that models this phase_
- [doi:10.1016/j.jallcom.2019.05.341](https://doi.org/10.1016/j.jallcom.2019.05.341) V.T. Witusiewicz, A.A. Bondar, U. Hecht, A. Theofilatos, N.I. Tsyganenko, S.V. Utkin et al., Experimental study and thermodynamic re-modelling of the constituent binaries and ternary B–Fe–Ti system, Journal of Alloys and Compounds 800, 419-449 (2019).
_assessment that models this phase_
- [doi:10.2320/matertrans.MC200820](https://doi.org/10.2320/matertrans.MC200820) Y. Nakama, H. Ohtani, M. Hasebe, Mater. Trans. (JIM), 50, 984-93(2009).
_assessment that models this phase_
## LIQUID (B–Ti)
- Id: `phase:b-ti:liquid`; status `assigned`
- Structure: liquid; type `st:liquid`; liquid; confidence high
- Stability: stable in 7 of 7 calculated diagram(s): 1780–4000 K, x(B) 0–1
- Literature: 64 values (63 accepted) from 5 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:b-ti:liquid)
Names (14): _corpus: _corpus:phase:b-ti:liquid
_paper: _paper:10.1007/bf02646757:L, paper:10.1016/j.calphad.2011.10.003:L, paper:10.1016/j.jallcom.2003.09.017:L, paper:10.1016/j.jallcom.2003.09.017:liquid, paper:10.1016/j.jallcom.2006.10.034:L, paper:sha256-85fd53a1a176b694:Liquid
_tdb: _tdb:TiB-04Ma.tdb:LIQUID, tdb:TiB-08Wit.tdb:LIQUID, tdb:TiB-09Nak.tdb:LIQUID, tdb:TiB-11Cac.tdb:LIQUID, tdb:TiB-16Wit.tdb:LIQUID, tdb:TiB-19Wit.tdb:LIQUID, tdb:TiB-94Bat-LB.tdb:LIQUID
### TDB models of LIQUID (7): PHASE and CONSTITUENT statements as written
[TiB-04Ma.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-04Ma.tdb): LIQUID, type code %, sha256 `1bea624752196864…`
~~~~text
26: PHASE LIQUID:L % 1 1 !
27: CONST LIQUID:L : B TI : !
~~~~
[TiB-08Wit.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-08Wit.tdb): LIQUID, type code %, sha256 `1d8367fa30ef15c2…`
~~~~text
24: PHASE LIQUID:L % 1 1 !
25: CONST LIQUID:L : B TI : !
~~~~
[TiB-09Nak.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-09Nak.tdb): LIQUID, type code %, sha256 `1b4af84d09dba0c7…`
~~~~text
25: PHASE LIQUID:L % 1 1 !
26: CONST LIQUID:L : B TI : !
~~~~
[TiB-11Cac.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-11Cac.tdb): LIQUID, type code %, sha256 `4e632683d15fe800…`
~~~~text
26: PHASE LIQUID:L % 1 1 !
27: CONST LIQUID:L : B TI : !
~~~~
[TiB-16Wit.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-16Wit.tdb): LIQUID, type code %, sha256 `f17559a1695b8573…`
~~~~text
24: PHASE LIQUID:L % 1 1 !
25: CONST LIQUID:L : B TI : !
~~~~
[TiB-19Wit.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-19Wit.tdb): LIQUID, type code %, sha256 `13ea870c397a4aba…`
~~~~text
24: PHASE LIQUID:L % 1 1 !
25: CONST LIQUID:L : B TI : !
~~~~
[TiB-94Bat-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-94Bat-LB.tdb): LIQUID, type code %, sha256 `0fb6180a65bd872e…`
~~~~text
22: PHASE LIQUID:L % 1 1 !
23: CONST LIQUID:L : B TI : !
~~~~
Example references (10 of 10; assessments first):
- [doi:10.1016/j.jallcom.2006.10.034](https://doi.org/10.1016/j.jallcom.2006.10.034) V.T. Witusiewicz, A.A. Bondar, U. Hecht, S. Rex, T.Ya. Velikanova, The Al–B–Nb–Ti system, Journal of Alloys and Compounds 448, 185-194 (2008).
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.jallcom.2003.09.017](https://doi.org/10.1016/j.jallcom.2003.09.017) Xiaoyan Ma, Changrong Li, Zhenmin Du, Weijing Zhang, Thermodynamic assessment of the Ti–B system, Journal of Alloys and Compounds 370, 149-158 (2004).
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1016/j.calphad.2011.10.003](https://doi.org/10.1016/j.calphad.2011.10.003) G. Cacciamani, P. Riani, F. Valenza, Equilibrium between MB2 (M=Ti,Zr,Hf) UHTC and Ni: A thermodynamic database for the B–Hf–Ni–Ti–Zr system, Calphad 35, 601-619 (2011).
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.jallcom.2015.09.158](https://doi.org/10.1016/j.jallcom.2015.09.158) V.T. Witusiewicz, A.A. Bondar, U. Hecht, O.A. Potazhevska, T.Ya Velikanova, Thermodynamic modelling of the ternary B–Mo–Ti system with refined B–Mo description, Journal of Alloys and Compounds 655, 336-352 (2016).
_assessment that models this phase_
- [doi:10.1016/j.jallcom.2019.05.341](https://doi.org/10.1016/j.jallcom.2019.05.341) V.T. Witusiewicz, A.A. Bondar, U. Hecht, A. Theofilatos, N.I. Tsyganenko, S.V. Utkin et al., Experimental study and thermodynamic re-modelling of the constituent binaries and ternary B–Fe–Ti system, Journal of Alloys and Compounds 800, 419-449 (2019).
_assessment that models this phase_
- [doi:10.2320/matertrans.MC200820](https://doi.org/10.2320/matertrans.MC200820) Y. Nakama, H. Ohtani, M. Hasebe, Mater. Trans. (JIM), 50, 984-93(2009).
_assessment that models this phase_
- [doi:10.1002/zaac.19522680308](https://doi.org/10.1002/zaac.19522680308) R. Kieffer, F. Benesovsky, E. R. Honak, Über ein neues Verfahren zur Herstellung von Metallboriden der Übergangsmetalle, insbesondere von Titan‐und Zirkonborid, Zeitschrift anorg allge chemie 268, 191-200 (1952).
_cited as the source of values for this phase_
- [doi:10.1007/bf02646757](https://doi.org/10.1007/bf02646757) H. Bittermann, P. Rogl, Critical assessment and thermodynamic calculation of the ternary system boron-hafnium-titanium (B-Hf-Ti), JPE 18, 24-47 (1997).
_reports values for this phase_
- [doi:10.1016/0001-6160(54)90090-5](https://doi.org/10.1016/0001-6160%2854%2990090-5) Benjamin Post, Frank W. Glaser, David Moskowitz, Transition metal diborides, Acta Metallurgica 2, 20-25 (1954).
_cited as the source of values for this phase_
- [doi:10.1116/1.573700](https://doi.org/10.1116/1.573700) H. Holleck, Material selection for hard coatings, Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films 4, 2661-2669 (1986).
_cited as the source of values for this phase_
## TI3B4_D7B (B–Ti)
- Id: `phase:b-ti:ti3b4-d7b`; status `assigned`
- Structure: Ta3B4 · D7_b · oI14 · Immm (71); type `st:d7-b-ta3b4-oi14`; tier A: standard phase name; confidence high
- Caveat: DFT agrees: on-hull mp-aaacginq and oqmd-28622, space group 71
- Stoichiometry: B 0.5714, Ti 0.4286
- Stability: stable in 7 of 7 calculated diagram(s): 300–2481.63 K, x(B) 0.57143–0.57143
- Literature: 19 values (19 accepted) from 5 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:b-ti:ti3b4-d7b)
Names (15): _corpus: _corpus:phase:b-ti:ti3b4-d7b
_mp: _mp:mp-aaacginq
_oqmd: _oqmd:oqmd-28622
_paper: _paper:10.1016/j.calphad.2011.10.003:Ti3B4, paper:10.1016/j.jallcom.2003.09.017:Ti3B4, paper:10.1016/j.jallcom.2006.10.034:Ti3B4, paper:10.2320/matertrans.mc200820:Ti3B4, paper:sha256-85fd53a1a176b694:B4Ti3
_tdb: _tdb:TiB-04Ma.tdb:TI3B4_D7B, tdb:TiB-08Wit.tdb:TI3B4_D7B, tdb:TiB-09Nak.tdb:TI3B4_D7B, tdb:TiB-11Cac.tdb:TI3B4_D7B, tdb:TiB-16Wit.tdb:TI3B4_D7B, tdb:TiB-19Wit.tdb:TI3B4_D7B, tdb:TiB-94Bat-LB.tdb:TI3B4_D7B
### TDB models of TI3B4_D7B (7): PHASE and CONSTITUENT statements as written
[TiB-04Ma.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-04Ma.tdb): TI3B4_D7B, type code %, sha256 `1bea624752196864…`
~~~~text
56: PHASE TI3B4_D7B % 2 3 4 !
57: CONST TI3B4_D7B : TI : B : !
~~~~
[TiB-08Wit.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-08Wit.tdb): TI3B4_D7B, type code %, sha256 `1d8367fa30ef15c2…`
~~~~text
54: PHASE TI3B4_D7B % 2 3 4 !
55: CONST TI3B4_D7B : TI : B : !
~~~~
[TiB-09Nak.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-09Nak.tdb): TI3B4_D7B, type code %, sha256 `1b4af84d09dba0c7…`
~~~~text
55: PHASE TI3B4_D7B % 2 3 4 !
56: CONST TI3B4_D7B : TI : B : !
~~~~
[TiB-11Cac.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-11Cac.tdb): TI3B4_D7B, type code %, sha256 `4e632683d15fe800…`
~~~~text
56: PHASE TI3B4_D7B % 2 3 4 !
57: CONST TI3B4_D7B : TI : B : !
~~~~
[TiB-16Wit.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-16Wit.tdb): TI3B4_D7B, type code %, sha256 `f17559a1695b8573…`
~~~~text
54: PHASE TI3B4_D7B % 2 3 4 !
55: CONST TI3B4_D7B : TI : B : !
~~~~
[TiB-19Wit.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-19Wit.tdb): TI3B4_D7B, type code %, sha256 `13ea870c397a4aba…`
~~~~text
54: PHASE TI3B4_D7B % 2 3 4 !
55: CONST TI3B4_D7B : TI : B : !
~~~~
[TiB-94Bat-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-94Bat-LB.tdb): TI3B4_D7B, type code %, sha256 `0fb6180a65bd872e…`
~~~~text
52: PHASE TI3B4_D7B % 2 3 4 !
53: CONST TI3B4_D7B : TI : B : !
~~~~
Example references (7 of 7; assessments first):
- [doi:10.1016/j.jallcom.2006.10.034](https://doi.org/10.1016/j.jallcom.2006.10.034) V.T. Witusiewicz, A.A. Bondar, U. Hecht, S. Rex, T.Ya. Velikanova, The Al–B–Nb–Ti system, Journal of Alloys and Compounds 448, 185-194 (2008).
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.jallcom.2003.09.017](https://doi.org/10.1016/j.jallcom.2003.09.017) Xiaoyan Ma, Changrong Li, Zhenmin Du, Weijing Zhang, Thermodynamic assessment of the Ti–B system, Journal of Alloys and Compounds 370, 149-158 (2004).
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1016/j.calphad.2011.10.003](https://doi.org/10.1016/j.calphad.2011.10.003) G. Cacciamani, P. Riani, F. Valenza, Equilibrium between MB2 (M=Ti,Zr,Hf) UHTC and Ni: A thermodynamic database for the B–Hf–Ni–Ti–Zr system, Calphad 35, 601-619 (2011).
_assessment that models this phase; reports values for this phase_
- [doi:10.2320/matertrans.MC200820](https://doi.org/10.2320/matertrans.MC200820) Y. Nakama, H. Ohtani, M. Hasebe, Mater. Trans. (JIM), 50, 984-93(2009).
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.jallcom.2015.09.158](https://doi.org/10.1016/j.jallcom.2015.09.158) V.T. Witusiewicz, A.A. Bondar, U. Hecht, O.A. Potazhevska, T.Ya Velikanova, Thermodynamic modelling of the ternary B–Mo–Ti system with refined B–Mo description, Journal of Alloys and Compounds 655, 336-352 (2016).
_assessment that models this phase_
- [doi:10.1016/j.jallcom.2019.05.341](https://doi.org/10.1016/j.jallcom.2019.05.341) V.T. Witusiewicz, A.A. Bondar, U. Hecht, A. Theofilatos, N.I. Tsyganenko, S.V. Utkin et al., Experimental study and thermodynamic re-modelling of the constituent binaries and ternary B–Fe–Ti system, Journal of Alloys and Compounds 800, 419-449 (2019).
_assessment that models this phase_
- [doi:10.1016/j.jallcom.2007.02.030](https://doi.org/10.1016/j.jallcom.2007.02.030) V.T. Witusiewicz, A.A. Bondar, U. Hecht, S. Rex, T.Ya. Velikanova, The Al–B–Nb–Ti system, Journal of Alloys and Compounds 456, 143-150 (2008).
_cited as the source of values for this phase_
## TIB_B27 (B–Ti)
- Id: `phase:b-ti:tib-b27`; status `assigned`
- Structure: FeB · B27 · oP8 · Pnma (62); type `st:b27-feb-op8`; 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 (no_structure_token, off_stoichiometric_model, structure_token_is_also_a_formula); structure as stated in the SGTE crystallographic table for this phase name and system
- Stability: stable in 5 of 5 calculated diagram(s): 300–2459.71 K, x(B) 0.48221–0.5
- Literature: 32 values (32 accepted) from 4 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:b-ti:tib-b27)
Names (10): _corpus: _corpus:phase:b-ti:tib-b27
_paper: _paper:10.1016/j.jallcom.2003.09.017:TiB, paper:10.1016/j.jallcom.2006.10.034:TiB, paper:10.2320/matertrans.mc200820:TiB, paper:sha256-85fd53a1a176b694:BTi
_tdb: _tdb:TiB-04Ma.tdb:TIB_B27, tdb:TiB-08Wit.tdb:TIB_B27, tdb:TiB-09Nak.tdb:TIB_B27, tdb:TiB-16Wit.tdb:TIB_B27, tdb:TiB-19Wit.tdb:TIB_B27
### TDB models of TIB_B27 (5): PHASE and CONSTITUENT statements as written
[TiB-04Ma.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-04Ma.tdb): TIB_B27, type code %, sha256 `1bea624752196864…`
~~~~text
51: PHASE TIB_B27 % 2 1 1 !
52: CONST TIB_B27 : TI : B% TI : !
~~~~
[TiB-08Wit.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-08Wit.tdb): TIB_B27, type code %, sha256 `1d8367fa30ef15c2…`
~~~~text
49: PHASE TIB_B27 % 2 1 1 !
50: CONST TIB_B27 : TI : B% TI : !
~~~~
[TiB-09Nak.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-09Nak.tdb): TIB_B27, type code %, sha256 `1b4af84d09dba0c7…`
~~~~text
50: PHASE TIB_B27 % 2 1 1 !
51: CONST TIB_B27 : TI : B : !
~~~~
[TiB-16Wit.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-16Wit.tdb): TIB_B27, type code %, sha256 `f17559a1695b8573…`
~~~~text
49: PHASE TIB_B27 % 2 1 1 !
50: CONST TIB_B27 : TI : B% TI : !
~~~~
[TiB-19Wit.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-19Wit.tdb): TIB_B27, type code %, sha256 `13ea870c397a4aba…`
~~~~text
49: PHASE TIB_B27 % 2 1 1 !
50: CONST TIB_B27 : B TI% : B% TI : !
~~~~
Example references (7 of 7; assessments first):
- [doi:10.1016/j.jallcom.2006.10.034](https://doi.org/10.1016/j.jallcom.2006.10.034) V.T. Witusiewicz, A.A. Bondar, U. Hecht, S. Rex, T.Ya. Velikanova, The Al–B–Nb–Ti system, Journal of Alloys and Compounds 448, 185-194 (2008).
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.jallcom.2003.09.017](https://doi.org/10.1016/j.jallcom.2003.09.017) Xiaoyan Ma, Changrong Li, Zhenmin Du, Weijing Zhang, Thermodynamic assessment of the Ti–B system, Journal of Alloys and Compounds 370, 149-158 (2004).
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.2320/matertrans.MC200820](https://doi.org/10.2320/matertrans.MC200820) Y. Nakama, H. Ohtani, M. Hasebe, Mater. Trans. (JIM), 50, 984-93(2009).
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.jallcom.2015.09.158](https://doi.org/10.1016/j.jallcom.2015.09.158) V.T. Witusiewicz, A.A. Bondar, U. Hecht, O.A. Potazhevska, T.Ya Velikanova, Thermodynamic modelling of the ternary B–Mo–Ti system with refined B–Mo description, Journal of Alloys and Compounds 655, 336-352 (2016).
_assessment that models this phase_
- [doi:10.1016/j.jallcom.2019.05.341](https://doi.org/10.1016/j.jallcom.2019.05.341) V.T. Witusiewicz, A.A. Bondar, U. Hecht, A. Theofilatos, N.I. Tsyganenko, S.V. Utkin et al., Experimental study and thermodynamic re-modelling of the constituent binaries and ternary B–Fe–Ti system, Journal of Alloys and Compounds 800, 419-449 (2019).
_assessment that models this phase_
- [doi:10.1021/j100814a027](https://doi.org/10.1021/j100814a027) P. O. Schissel, O. C. Trulson, MASS SPECTROMETRIC STUDY OF THE VAPORIZATION OF THE TITANIUM-BORON SYSTEM\1\, J. Phys. Chem. 66, 1492-1496 (1962).
_cited as the source of values for this phase_
- [doi:10.1016/j.jallcom.2007.02.030](https://doi.org/10.1016/j.jallcom.2007.02.030) V.T. Witusiewicz, A.A. Bondar, U. Hecht, S. Rex, T.Ya. Velikanova, The Al–B–Nb–Ti system, Journal of Alloys and Compounds 456, 143-150 (2008).
_cited as the source of values for this phase_
## TIB2_C32 (B–Ti)
- Id: `phase:b-ti:tib2-c32`; status `assigned`
- Structure: AlB2 · C32 · hP3 · P6/mmm (191); type `st:c32-alb2-hp3`; tier A: standard phase name; confidence high
- Caveat: partitioned order/disorder model in TiB-04Ma.tdb also describes the disordered state
- Caveat: partitioned order/disorder model in TiB-08Wit.tdb also describes the disordered state
- Caveat: partitioned order/disorder model in TiB-16Wit.tdb also describes the disordered state
- Caveat: partitioned order/disorder model in TiB-19Wit.tdb also describes the disordered state
- Stability: stable in 6 of 6 calculated diagram(s): 300–3496.05 K, x(B) 0.63954–0.6769
- Literature: 48 values (48 accepted) from 5 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:b-ti:tib2-c32)
Names (12): _corpus: _corpus:phase:b-ti:tib2-c32
_paper: _paper:10.1016/j.calphad.2011.10.003:TiB2, paper:10.1016/j.jallcom.2003.09.017:TiB2, paper:10.1016/j.jallcom.2006.10.034:TiB2, paper:10.2320/matertrans.mc200820:TiB2, paper:sha256-85fd53a1a176b694:B2Ti
_tdb: _tdb:TiB-04Ma.tdb:TIB2_C32, tdb:TiB-08Wit.tdb:TIB2_C32, tdb:TiB-09Nak.tdb:TIB2_C32, tdb:TiB-11Cac.tdb:TIB2_C32, tdb:TiB-16Wit.tdb:TIB2_C32, tdb:TiB-19Wit.tdb:TIB2_C32
### TDB models of TIB2_C32 (6): PHASE and CONSTITUENT statements as written
[TiB-04Ma.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-04Ma.tdb): TIB2_C32, type code %, sha256 `1bea624752196864…`
~~~~text
61: PHASE TIB2_C32 % 2 1 2 !
62: CONST TIB2_C32 : B TI% : B% TI : !
~~~~
[TiB-08Wit.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-08Wit.tdb): TIB2_C32, type code %, sha256 `1d8367fa30ef15c2…`
~~~~text
59: PHASE TIB2_C32 % 2 1 2 !
60: CONST TIB2_C32 : B TI% : B% TI : !
~~~~
[TiB-09Nak.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-09Nak.tdb): TIB2_C32, type code %, sha256 `1b4af84d09dba0c7…`
~~~~text
60: PHASE TIB2_C32 % 2 1 2 !
61: CONST TIB2_C32 : TI% VA : B% VA : !
~~~~
[TiB-11Cac.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-11Cac.tdb): TIB2_C32, type code %, sha256 `4e632683d15fe800…`
~~~~text
61: PHASE TIB2_C32 % 2 1 2 !
62: CONST TIB2_C32 : TI VA : B : !
~~~~
[TiB-16Wit.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-16Wit.tdb): TIB2_C32, type code %, sha256 `f17559a1695b8573…`
~~~~text
59: PHASE TIB2_C32 % 2 1 2 !
60: CONST TIB2_C32 : B TI% : B% TI : !
~~~~
[TiB-19Wit.tdb](https://orchid-project.org/data/databases/sgte-binary/TiB-19Wit.tdb): TIB2_C32, type code %, sha256 `13ea870c397a4aba…`
~~~~text
59: PHASE TIB2_C32 % 2 1 2 !
60: CONST TIB2_C32 : B TI% : B% TI : !
~~~~
Example references (10 of 13; assessments first):
- [doi:10.1016/j.jallcom.2003.09.017](https://doi.org/10.1016/j.jallcom.2003.09.017) Xiaoyan Ma, Changrong Li, Zhenmin Du, Weijing Zhang, Thermodynamic assessment of the Ti–B system, Journal of Alloys and Compounds 370, 149-158 (2004).
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1016/j.jallcom.2006.10.034](https://doi.org/10.1016/j.jallcom.2006.10.034) V.T. Witusiewicz, A.A. Bondar, U. Hecht, S. Rex, T.Ya. Velikanova, The Al–B–Nb–Ti system, Journal of Alloys and Compounds 448, 185-194 (2008).
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.calphad.2011.10.003](https://doi.org/10.1016/j.calphad.2011.10.003) G. Cacciamani, P. Riani, F. Valenza, Equilibrium between MB2 (M=Ti,Zr,Hf) UHTC and Ni: A thermodynamic database for the B–Hf–Ni–Ti–Zr system, Calphad 35, 601-619 (2011).
_assessment that models this phase; reports values for this phase_
- [doi:10.2320/matertrans.MC200820](https://doi.org/10.2320/matertrans.MC200820) Y. Nakama, H. Ohtani, M. Hasebe, Mater. Trans. (JIM), 50, 984-93(2009).
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.jallcom.2015.09.158](https://doi.org/10.1016/j.jallcom.2015.09.158) V.T. Witusiewicz, A.A. Bondar, U. Hecht, O.A. Potazhevska, T.Ya Velikanova, Thermodynamic modelling of the ternary B–Mo–Ti system with refined B–Mo description, Journal of Alloys and Compounds 655, 336-352 (2016).
_assessment that models this phase_
- [doi:10.1016/j.jallcom.2019.05.341](https://doi.org/10.1016/j.jallcom.2019.05.341) V.T. Witusiewicz, A.A. Bondar, U. Hecht, A. Theofilatos, N.I. Tsyganenko, S.V. Utkin et al., Experimental study and thermodynamic re-modelling of the constituent binaries and ternary B–Fe–Ti system, Journal of Alloys and Compounds 800, 419-449 (2019).
_assessment that models this phase_
- [doi:10.1002/zaac.19522680308](https://doi.org/10.1002/zaac.19522680308) R. Kieffer, F. Benesovsky, E. R. Honak, Über ein neues Verfahren zur Herstellung von Metallboriden der Übergangsmetalle, insbesondere von Titan‐und Zirkonborid, Zeitschrift anorg allge chemie 268, 191-200 (1952).
_cited as the source of values for this phase_
- [doi:10.1016/0001-6160(54)90090-5](https://doi.org/10.1016/0001-6160%2854%2990090-5) Benjamin Post, Frank W. Glaser, David Moskowitz, Transition metal diborides, Acta Metallurgica 2, 20-25 (1954).
_cited as the source of values for this phase_
- [doi:10.1016/0042-207x(95)00080-1](https://doi.org/10.1016/0042-207x%2895%2900080-1) L Guzman, M Elena, A Miotello, PM Ossi, DC Kothari, Phase formation in the N-B-Ti system, Vacuum 46, 951-954 (1995).
_cited as the source of values for this phase_
- [doi:10.1021/j100814a027](https://doi.org/10.1021/j100814a027) P. O. Schissel, O. C. Trulson, MASS SPECTROMETRIC STUDY OF THE VAPORIZATION OF THE TITANIUM-BORON SYSTEM\1\, J. Phys. Chem. 66, 1492-1496 (1962).
_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). 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).