# Mn–Ti phases

> Mn–Ti system: 18 phases (tier A 8, tier C 2, liquid 1, needs_review 7); 15 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/MN-TI.html · Markdown: https://data.orchid-project.org/phases/pages/MN-TI.md

18 phases (tier A 8, tier C 2, liquid 1, needs_review 7); 15 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=MN-TI) · [full JSON](https://data.orchid-project.org/phases/systems/MN-TI.json) · [Mn–Ti system page](https://data.orchid-project.org/systems/MN-TI.html) · [Markdown](https://data.orchid-project.org/phases/pages/MN-TI.md) · [field reference](https://data.orchid-project.org/phases/SCHEMA.md)

Table: Phases of the Mn–Ti system (18)

| Phase | Structure | Basis | Stability (calculated) | Literature values | TDB models |
|---|---|---|---|---:|---:|
| [DIS_A12](#phase-mn-ti-a12-dis); _phase:mn-ti:a12-dis_ |  | needs_review | no calculated diagram | 0 | 1 |
| [DIS_A13](#phase-mn-ti-a13-dis); _phase:mn-ti:a13-dis_ |  | needs_review | no calculated diagram | 0 | 1 |
| [BCC_A2](#phase-mn-ti-bcc-a2); _phase:mn-ti:bcc-a2_ | W · A2 · cI2 · Im-3m (229) | tier A: standard phase name | stable in 4 of 4 calculated diagram(s): 811.38–2499.81 K, x(Ti) 0–1 | 59 | 5 |
| [C14_LAVES](#phase-mn-ti-c14-laves); _phase:mn-ti:c14-laves_ | MgZn2 · C14 · hP12 · P6_3/mmc (194) | tier A: standard phase name | stable in 4 of 4 calculated diagram(s): 300–1639.22 K, x(Ti) 0.29184–0.4119 | 35 | 5 |
| [CBCC_A12](#phase-mn-ti-cbcc-a12); _phase:mn-ti:cbcc-a12_ | alpha-Mn · A12 · cI58 · I-43m (217) | tier A: standard phase name | stable in 4 of 4 calculated diagram(s): 300–1451.9 K, x(Ti) 0–0.12352 | 26 | 5 |
| [CUB_A13](#phase-mn-ti-cub-a13); _phase:mn-ti:cub-a13_ | beta-Mn · A13 · cP20 · P4_132 (213) | tier A: standard phase name | stable in 4 of 4 calculated diagram(s): 945.04–1434.69 K, x(Ti) 0–0.07985 | 10 | 5 |
| [FCC_A1](#phase-mn-ti-fcc-a1); _phase:mn-ti:fcc-a1_ | Cu · A1 · cF4 · Fm-3m (225) | tier A: standard phase name | stable in 4 of 4 calculated diagram(s): 1345–1521 K, x(Ti) 0–0.00547 | 5 | 5 |
| [HCP_A3](#phase-mn-ti-hcp-a3); _phase:mn-ti:hcp-a3_ | Mg · A3 · hP2 · P6_3/mmc (194) | tier A: standard phase name | stable in 4 of 4 calculated diagram(s): 300–1939.99 K, x(Ti) 0.99156–1 | 7 | 5 |
| [LIQUID](#phase-mn-ti-liquid); _phase:mn-ti:liquid_ | liquid | liquid | stable in 4 of 4 calculated diagram(s): 1454.45–2500 K, x(Ti) 0–1 | 64 | 5 |
| [MN11TI9](#phase-mn-ti-mn11ti9); _phase:mn-ti:mn11ti9_ | Re25Zr21 · hR92 · R-3c (167) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 2 of 2 calculated diagram(s): 300–1496.79 K, x(Ti) 0.45–0.45 | 23 | 3 |
| [MN2TI_C14](#phase-mn-ti-mn2ti-c14); _phase:mn-ti:mn2ti-c14_ | MgZn2 · C14 · hP12 · P6_3/mmc (194) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 1421.32–1580 K, x(Ti) 0.29758–0.40288 | 0 | 1 |
| [MN3TI](#phase-mn-ti-mn3ti); _phase:mn-ti:mn3ti_ | Mn3Ti · oP74 · Pbam (55) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 4 of 4 calculated diagram(s): 1094.35–1570 K, x(Ti) 0.25–0.25 | 33 | 5 |
| [MN4TI](#phase-mn-ti-mn4ti); _phase:mn-ti:mn4ti_ |  | needs_review | stable in 4 of 4 calculated diagram(s): 1122.03–1515.91 K, x(Ti) 0.185–0.185 | 45 | 5 |
| [MN9TI11](#phase-mn-ti-mn9ti11); _phase:mn-ti:mn9ti11_ |  | needs_review | stable in 2 of 2 calculated diagram(s): 300–1243.85 K, x(Ti) 0.55–0.55 | 14 | 3 |
| [MNTI](#phase-mn-ti-mnti); _phase:mn-ti:mnti_ |  | needs_review | stable in 1 of 1 calculated diagram(s): 300–1202.92 K, x(Ti) 0.5–0.5 | 2 | 1 |
| [MNTI_ALPHA](#phase-mn-ti-mnti-alpha); _phase:mn-ti:mnti-alpha_ |  | needs_review | stable in 2 of 2 calculated diagram(s): 433.19–1223.96 K, x(Ti) 0.5–0.5 | 3 | 2 |
| [MNTI_BETA](#phase-mn-ti-mnti-beta); _phase:mn-ti:mnti-beta_ |  | needs_review | stable in 2 of 2 calculated diagram(s): 1071.29–1500.16 K, x(Ti) 0.485–0.485 | 11 | 2 |
| [MNTI_D8B](#phase-mn-ti-mnti-d8b); _phase:mn-ti:mnti-d8b_ | sigma-CrFe · D8_b · tP30 · P4_2/mnm (136) | tier A: standard phase name | no calculated diagram | 0 | 1 |

## DIS_A12 (Mn–Ti)

- Id: `phase:mn-ti:a12-dis`; status `needs_review`
- No structure assigned. Why: unrecognised_name_tokens:DIS
- Candidate (name_token): alpha-Mn · A12 · cI58 · I-43m (217) — Strukturbericht/word 'A12' in the TDB name
- Candidate (tdb_comment): alpha-Mn · cI58 · I-43m — MnTi-23Wal-3g.tdb: 'Prototype alpha-Mn (cI58, I-43m)'
- Stability: no calculated diagram
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:mn-ti:a12-dis)

Names (2): _corpus: _corpus:phase:mn-ti:a12-dis  
_tdb: _tdb:MnTi-23Wal-3g.tdb:DIS_A12  


### TDB models of DIS_A12 (1): PHASE and CONSTITUENT statements as written

[MnTi-23Wal-3g.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-23Wal-3g.tdb): DIS_A12, type code %A, sha256 `d277a6ab26486e94…`

~~~~text
53: PHASE DIS_A12 %A 1 1 !
54: CONST DIS_A12 : MN% TI : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1016/j.calphad.2023.102555](https://doi.org/10.1016/j.calphad.2023.102555) A. Walnsch, A. Leineweber, M.J. Kriegel, Calphad, 81, 102555(2023).  
_assessment that models this phase_

## DIS_A13 (Mn–Ti)

- Id: `phase:mn-ti:a13-dis`; status `needs_review`
- No structure assigned. Why: unrecognised_name_tokens:DIS
- Candidate (name_token): beta-Mn · A13 · cP20 · P4_132 (213) — Strukturbericht/word 'A13' in the TDB name
- Candidate (tdb_comment): beta-Mn · cP20 · P4_132 — MnTi-23Wal-3g.tdb: 'Prototype beta-Mn (cP20, P4_132)'
- Stability: no calculated diagram
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:mn-ti:a13-dis)

Names (2): _corpus: _corpus:phase:mn-ti:a13-dis  
_tdb: _tdb:MnTi-23Wal-3g.tdb:DIS_A13  


### TDB models of DIS_A13 (1): PHASE and CONSTITUENT statements as written

[MnTi-23Wal-3g.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-23Wal-3g.tdb): DIS_A13, type code %, sha256 `d277a6ab26486e94…`

~~~~text
63: PHASE DIS_A13 % 2 1 1 !
64: CONST DIS_A13 : MN% TI : VA : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1016/j.calphad.2023.102555](https://doi.org/10.1016/j.calphad.2023.102555) A. Walnsch, A. Leineweber, M.J. Kriegel, Calphad, 81, 102555(2023).  
_assessment that models this phase_

## BCC_A2 (Mn–Ti)

- Id: `phase:mn-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 4 of 4 calculated diagram(s): 811.38–2499.81 K, x(Ti) 0–1
- Literature: 59 values (45 accepted) from 4 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:mn-ti:bcc-a2)

Names (13): _corpus: _corpus:phase:mn-ti:bcc-a2  
_paper: _paper:10.1016/j.calphad.2009.08.002:bcc(βTi), paper:10.1016/j.calphad.2009.08.002:bcc(δMn), paper:10.1016/j.jallcom.2021.161957:βTi, paper:10.1016/j.jallcom.2021.161957:δMn, paper:10.1039/c6cp04542a:(βTi), paper:10.1039/c6cp04542a:(δMn), paper:sha256-85fd53a1a176b694:bcc-A2  
_tdb: _tdb:MnTi-09Che.tdb:BCC_A2, tdb:MnTi-16Kha.tdb:BCC_A2, tdb:MnTi-22Zhe.tdb:BCC_A2, tdb:MnTi-23Wal-3g.tdb:BCC_A2, tdb:MnTi-98Sau-LB.tdb:BCC_A2  


### TDB models of BCC_A2 (5): PHASE and CONSTITUENT statements as written

[MnTi-09Che.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-09Che.tdb): BCC_A2, type code %B, sha256 `90819a39b26e29cd…`

~~~~text
32: PHASE BCC_A2 %B 2 1 3 !
33: CONST BCC_A2 : MN% TI% : VA : !
~~~~

[MnTi-16Kha.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-16Kha.tdb): BCC_A2, type code %B, sha256 `dc339ab958115ef9…`

~~~~text
30: PHASE BCC_A2 %B 2 1 3 !
31: CONST BCC_A2 : MN% TI% : VA : !
~~~~

[MnTi-22Zhe.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-22Zhe.tdb): BCC_A2, type code %B, sha256 `99449a8d5fb4479a…`

~~~~text
39: PHASE BCC_A2 %B 2 1 3 !
40: CONST BCC_A2 : MN% TI% : VA : !
~~~~

[MnTi-23Wal-3g.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-23Wal-3g.tdb): BCC_A2, type code %B, sha256 `d277a6ab26486e94…`

~~~~text
43: PHASE BCC_A2 %B 2 1 3 !
44: CONST BCC_A2 : MN% TI% : VA : !
~~~~

[MnTi-98Sau-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-98Sau-LB.tdb): BCC_A2, type code %B, sha256 `69981aa4700ea97a…`

~~~~text
47: PHASE BCC_A2 %B 2 1 3 !
48: CONST BCC_A2 : MN% TI% : VA : !
~~~~

Example references (5 of 5; assessments first): 

- [doi:10.1039/c6cp04542a](https://doi.org/10.1039/c6cp04542a) A. U. Khan, P. Brož, M. Premović, J. Pavlů, J. Vřeštál, X. Yan et al., The Ti–Mn system revisited: experimental investigation and thermodynamic modelling, Phys. Chem. Chem. Phys. 18, 23326-23339 (2016).  
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1016/j.jallcom.2021.161957](https://doi.org/10.1016/j.jallcom.2021.161957) Weisen Zheng, Wei Song, Tong Wu, Jingya Wang, Yanlin He, Xiao-Gang Lu, Experimental investigation and thermodynamic modeling of the ternary Ti–Fe–Mn system for hydrogen storage applications, Journal of Alloys and Compounds 891, 161957 (2022).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.calphad.2009.08.002](https://doi.org/10.1016/j.calphad.2009.08.002) Le Yi Chen, Chong He Li, Kun Wang, He Quan Dong, Xiong Gang Lu, Wei Zhong Ding, Thermodynamic modeling of Ti–Cr–Mn ternary system, Calphad 33, 658-663 (2009).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.calphad.2023.102555](https://doi.org/10.1016/j.calphad.2023.102555) A. Walnsch, A. Leineweber, M.J. Kriegel, Calphad, 81, 102555(2023).  
_assessment that models this phase_
- [doi:10.1007/bf02868287](https://doi.org/10.1007/bf02868287) J.L. Murray, The Mn–Ti (Manganese-Titanium) system, Bull. Alloy Phase Diagr. 2 (1981) 334–343.  
_cited as the source of values for this phase_

## C14_LAVES (Mn–Ti)

- Id: `phase:mn-ti:c14-laves`; status `assigned`
- Structure: MgZn2 · C14 · hP12 · P6_3/mmc (194); type `st:c14-mgzn2-hp12`; tier A: standard phase name; confidence high
- Caveat: partitioned order/disorder model in MnTi-09Che.tdb also describes the disordered state
- Caveat: partitioned order/disorder model in MnTi-16Kha.tdb also describes the disordered state
- Caveat: partitioned order/disorder model in MnTi-22Zhe.tdb also describes the disordered state
- Caveat: partitioned order/disorder model in MnTi-23Wal-3g.tdb also describes the disordered state
- Caveat: partitioned order/disorder model in MnTi-98Sau-LB.tdb also describes the disordered state
- Stability: stable in 4 of 4 calculated diagram(s): 300–1639.22 K, x(Ti) 0.29184–0.4119
- Literature: 35 values (35 accepted) from 4 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:mn-ti:c14-laves)

Names (10): _corpus: _corpus:phase:mn-ti:c14-laves  
_paper: _paper:10.1016/j.calphad.2009.08.002:LavesC14, paper:10.1016/j.jallcom.2021.161957:C14Laves, paper:10.1039/c6cp04542a:TiMn2, paper:sha256-85fd53a1a176b694:Laves-C14  
_tdb: _tdb:MnTi-09Che.tdb:C14_LAVES, tdb:MnTi-16Kha.tdb:C14_LAVES, tdb:MnTi-22Zhe.tdb:C14_LAVES, tdb:MnTi-23Wal-3g.tdb:C14_LAVES, tdb:MnTi-98Sau-LB.tdb:C14_LAVES  


### TDB models of C14_LAVES (5): PHASE and CONSTITUENT statements as written

[MnTi-09Che.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-09Che.tdb): C14_LAVES, type code %, sha256 `90819a39b26e29cd…`

~~~~text
62: PHASE C14_LAVES % 2 2 1 !
63: CONST C14_LAVES : MN% TI : MN TI% : !
~~~~

[MnTi-16Kha.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-16Kha.tdb): C14_LAVES, type code %, sha256 `dc339ab958115ef9…`

~~~~text
60: PHASE C14_LAVES % 2 2 1 !
61: CONST C14_LAVES : MN% TI : MN TI% : !
~~~~

[MnTi-22Zhe.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-22Zhe.tdb): C14_LAVES, type code %, sha256 `99449a8d5fb4479a…`

~~~~text
69: PHASE C14_LAVES % 2 2 1 !
70: CONST C14_LAVES : MN% TI : MN TI% : !
~~~~

[MnTi-23Wal-3g.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-23Wal-3g.tdb): C14_LAVES, type code %, sha256 `d277a6ab26486e94…`

~~~~text
83: PHASE C14_LAVES % 3 0.16667 0.33333 0.5 !
84: CONST C14_LAVES : MN% TI : MN TI% : MN% TI : !
~~~~

[MnTi-98Sau-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-98Sau-LB.tdb): C14_LAVES, type code %, sha256 `69981aa4700ea97a…`

~~~~text
82: PHASE C14_LAVES % 2 2 1 !
83: CONST C14_LAVES : MN% TI : MN TI% : !
~~~~

Example references (5 of 5; assessments first): 

- [doi:10.1039/c6cp04542a](https://doi.org/10.1039/c6cp04542a) A. U. Khan, P. Brož, M. Premović, J. Pavlů, J. Vřeštál, X. Yan et al., The Ti–Mn system revisited: experimental investigation and thermodynamic modelling, Phys. Chem. Chem. Phys. 18, 23326-23339 (2016).  
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1016/j.jallcom.2021.161957](https://doi.org/10.1016/j.jallcom.2021.161957) Weisen Zheng, Wei Song, Tong Wu, Jingya Wang, Yanlin He, Xiao-Gang Lu, Experimental investigation and thermodynamic modeling of the ternary Ti–Fe–Mn system for hydrogen storage applications, Journal of Alloys and Compounds 891, 161957 (2022).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.calphad.2009.08.002](https://doi.org/10.1016/j.calphad.2009.08.002) Le Yi Chen, Chong He Li, Kun Wang, He Quan Dong, Xiong Gang Lu, Wei Zhong Ding, Thermodynamic modeling of Ti–Cr–Mn ternary system, Calphad 33, 658-663 (2009).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.calphad.2023.102555](https://doi.org/10.1016/j.calphad.2023.102555) A. Walnsch, A. Leineweber, M.J. Kriegel, Calphad, 81, 102555(2023).  
_assessment that models this phase_
- [doi:10.1007/bf02868287](https://doi.org/10.1007/bf02868287) J.L. Murray, The Mn–Ti (Manganese-Titanium) system, Bull. Alloy Phase Diagr. 2 (1981) 334–343.  
_cited as the source of values for this phase_

## CBCC_A12 (Mn–Ti)

- Id: `phase:mn-ti:cbcc-a12`; status `assigned`
- Structure: alpha-Mn · A12 · cI58 · I-43m (217); type `st:a12-alpha-mn-ci58`; tier A: standard phase name; confidence high
- Caveat: MnTi-23Wal-3g.tdb: ordered phase with disordered part DIS_A12,,, (order/disorder model)
- Stability: stable in 4 of 4 calculated diagram(s): 300–1451.9 K, x(Ti) 0–0.12352
- Literature: 26 values (22 accepted) from 4 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:mn-ti:cbcc-a12)

Names (10): _corpus: _corpus:phase:mn-ti:cbcc-a12  
_paper: _paper:10.1016/j.calphad.2009.08.002:αMn, paper:10.1016/j.jallcom.2021.161957:αMn, paper:10.1039/c6cp04542a:(αMn), paper:sha256-85fd53a1a176b694:cbcc-A12  
_tdb: _tdb:MnTi-09Che.tdb:CBCC_A12, tdb:MnTi-16Kha.tdb:CBCC_A12, tdb:MnTi-22Zhe.tdb:CBCC_A12, tdb:MnTi-23Wal-3g.tdb:CBCC_A12, tdb:MnTi-98Sau-LB.tdb:CBCC_A12  


### TDB models of CBCC_A12 (5): PHASE and CONSTITUENT statements as written

[MnTi-09Che.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-09Che.tdb): CBCC_A12, type code %A, sha256 `90819a39b26e29cd…`

~~~~text
42: PHASE CBCC_A12 %A 2 1 1 !
43: CONST CBCC_A12 : MN% TI : VA : !
~~~~

[MnTi-16Kha.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-16Kha.tdb): CBCC_A12, type code %A, sha256 `dc339ab958115ef9…`

~~~~text
40: PHASE CBCC_A12 %A 2 1 1 !
41: CONST CBCC_A12 : MN% TI : VA : !
~~~~

[MnTi-22Zhe.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-22Zhe.tdb): CBCC_A12, type code %A, sha256 `99449a8d5fb4479a…`

~~~~text
49: PHASE CBCC_A12 %A 2 1 1 !
50: CONST CBCC_A12 : MN% TI : VA : !
~~~~

[MnTi-23Wal-3g.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-23Wal-3g.tdb): CBCC_A12, type code %VM, sha256 `d277a6ab26486e94…`

~~~~text
58: PHASE CBCC_A12 %VM 3 0.1724 0.4138 0.4138 !
59: CONST CBCC_A12 : MN TI : MN TI : MN TI : !
~~~~

[MnTi-98Sau-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-98Sau-LB.tdb): CBCC_A12, type code %A, sha256 `69981aa4700ea97a…`

~~~~text
57: PHASE CBCC_A12 %A 2 1 1 !
58: CONST CBCC_A12 : MN% TI : VA : !
~~~~

Example references (5 of 5; assessments first): 

- [doi:10.1039/c6cp04542a](https://doi.org/10.1039/c6cp04542a) A. U. Khan, P. Brož, M. Premović, J. Pavlů, J. Vřeštál, X. Yan et al., The Ti–Mn system revisited: experimental investigation and thermodynamic modelling, Phys. Chem. Chem. Phys. 18, 23326-23339 (2016).  
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1016/j.jallcom.2021.161957](https://doi.org/10.1016/j.jallcom.2021.161957) Weisen Zheng, Wei Song, Tong Wu, Jingya Wang, Yanlin He, Xiao-Gang Lu, Experimental investigation and thermodynamic modeling of the ternary Ti–Fe–Mn system for hydrogen storage applications, Journal of Alloys and Compounds 891, 161957 (2022).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.calphad.2009.08.002](https://doi.org/10.1016/j.calphad.2009.08.002) Le Yi Chen, Chong He Li, Kun Wang, He Quan Dong, Xiong Gang Lu, Wei Zhong Ding, Thermodynamic modeling of Ti–Cr–Mn ternary system, Calphad 33, 658-663 (2009).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.calphad.2023.102555](https://doi.org/10.1016/j.calphad.2023.102555) A. Walnsch, A. Leineweber, M.J. Kriegel, Calphad, 81, 102555(2023).  
_assessment that models this phase_
- [doi:10.1007/bf02868287](https://doi.org/10.1007/bf02868287) J.L. Murray, The Mn–Ti (Manganese-Titanium) system, Bull. Alloy Phase Diagr. 2 (1981) 334–343.  
_cited as the source of values for this phase_

## CUB_A13 (Mn–Ti)

- Id: `phase:mn-ti:cub-a13`; status `assigned`
- Structure: beta-Mn · A13 · cP20 · P4_132 (213); type `st:a13-beta-mn-cp20`; tier A: standard phase name; confidence high
- Caveat: MnTi-23Wal-3g.tdb: ordered phase with disordered part DIS_A13,,, (order/disorder model)
- Stability: stable in 4 of 4 calculated diagram(s): 945.04–1434.69 K, x(Ti) 0–0.07985
- Literature: 10 values (6 accepted) from 3 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:mn-ti:cub-a13)

Names (9): _corpus: _corpus:phase:mn-ti:cub-a13  
_paper: _paper:10.1016/j.calphad.2009.08.002:βMn, paper:10.1039/c6cp04542a:(βMn), paper:sha256-85fd53a1a176b694:cub-A13  
_tdb: _tdb:MnTi-09Che.tdb:CUB_A13, tdb:MnTi-16Kha.tdb:CUB_A13, tdb:MnTi-22Zhe.tdb:CUB_A13, tdb:MnTi-23Wal-3g.tdb:CUB_A13, tdb:MnTi-98Sau-LB.tdb:CUB_A13  


### TDB models of CUB_A13 (5): PHASE and CONSTITUENT statements as written

[MnTi-09Che.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-09Che.tdb): CUB_A13, type code %, sha256 `90819a39b26e29cd…`

~~~~text
47: PHASE CUB_A13 % 2 1 1 !
48: CONST CUB_A13 : MN% TI : VA : !
~~~~

[MnTi-16Kha.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-16Kha.tdb): CUB_A13, type code %, sha256 `dc339ab958115ef9…`

~~~~text
45: PHASE CUB_A13 % 2 1 1 !
46: CONST CUB_A13 : MN% TI : VA : !
~~~~

[MnTi-22Zhe.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-22Zhe.tdb): CUB_A13, type code %, sha256 `99449a8d5fb4479a…`

~~~~text
54: PHASE CUB_A13 % 2 1 1 !
55: CONST CUB_A13 : MN% TI : VA : !
~~~~

[MnTi-23Wal-3g.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-23Wal-3g.tdb): CUB_A13, type code %K, sha256 `d277a6ab26486e94…`

~~~~text
68: PHASE CUB_A13 %K 3 0.4 0.6 1 !
69: CONST CUB_A13 : MN TI : MN TI : VA : !
~~~~

[MnTi-98Sau-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-98Sau-LB.tdb): CUB_A13, type code %, sha256 `69981aa4700ea97a…`

~~~~text
62: PHASE CUB_A13 % 2 1 1 !
63: CONST CUB_A13 : MN% TI : VA : !
~~~~

Example references (4 of 4; assessments first): 

- [doi:10.1039/c6cp04542a](https://doi.org/10.1039/c6cp04542a) A. U. Khan, P. Brož, M. Premović, J. Pavlů, J. Vřeštál, X. Yan et al., The Ti–Mn system revisited: experimental investigation and thermodynamic modelling, Phys. Chem. Chem. Phys. 18, 23326-23339 (2016).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.calphad.2009.08.002](https://doi.org/10.1016/j.calphad.2009.08.002) Le Yi Chen, Chong He Li, Kun Wang, He Quan Dong, Xiong Gang Lu, Wei Zhong Ding, Thermodynamic modeling of Ti–Cr–Mn ternary system, Calphad 33, 658-663 (2009).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.calphad.2023.102555](https://doi.org/10.1016/j.calphad.2023.102555) A. Walnsch, A. Leineweber, M.J. Kriegel, Calphad, 81, 102555(2023).  
_assessment that models this phase_
- [doi:10.1016/j.jallcom.2021.161957](https://doi.org/10.1016/j.jallcom.2021.161957) Weisen Zheng, Wei Song, Tong Wu, Jingya Wang, Yanlin He, Xiao-Gang Lu, Experimental investigation and thermodynamic modeling of the ternary Ti–Fe–Mn system for hydrogen storage applications, Journal of Alloys and Compounds 891, 161957 (2022).  
_assessment that models this phase_

## FCC_A1 (Mn–Ti)

- Id: `phase:mn-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: stable in 4 of 4 calculated diagram(s): 1345–1521 K, x(Ti) 0–0.00547
- Literature: 5 values (1 accepted) from 2 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:mn-ti:fcc-a1)

Names (8): _corpus: _corpus:phase:mn-ti:fcc-a1  
_paper: _paper:10.1039/c6cp04542a:(γMn), paper:sha256-85fd53a1a176b694:fcc-A1  
_tdb: _tdb:MnTi-09Che.tdb:FCC_A1, tdb:MnTi-16Kha.tdb:FCC_A1, tdb:MnTi-22Zhe.tdb:FCC_A1, tdb:MnTi-23Wal-3g.tdb:FCC_A1, tdb:MnTi-98Sau-LB.tdb:FCC_A1  


### TDB models of FCC_A1 (5): PHASE and CONSTITUENT statements as written

[MnTi-09Che.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-09Che.tdb): FCC_A1, type code %A, sha256 `90819a39b26e29cd…`

~~~~text
27: PHASE FCC_A1 %A 2 1 1 !
28: CONST FCC_A1 : MN% TI : VA : !
~~~~

[MnTi-16Kha.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-16Kha.tdb): FCC_A1, type code %A, sha256 `dc339ab958115ef9…`

~~~~text
25: PHASE FCC_A1 %A 2 1 1 !
26: CONST FCC_A1 : MN% TI : VA : !
~~~~

[MnTi-22Zhe.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-22Zhe.tdb): FCC_A1, type code %A, sha256 `99449a8d5fb4479a…`

~~~~text
34: PHASE FCC_A1 %A 2 1 1 !
35: CONST FCC_A1 : MN% TI : VA : !
~~~~

[MnTi-23Wal-3g.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-23Wal-3g.tdb): FCC_A1, type code %A, sha256 `d277a6ab26486e94…`

~~~~text
38: PHASE FCC_A1 %A 2 1 1 !
39: CONST FCC_A1 : MN% TI : VA : !
~~~~

[MnTi-98Sau-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-98Sau-LB.tdb): FCC_A1, type code %A, sha256 `69981aa4700ea97a…`

~~~~text
42: PHASE FCC_A1 %A 2 1 1 !
43: CONST FCC_A1 : MN% TI : VA : !
~~~~

Example references (4 of 4; assessments first): 

- [doi:10.1039/c6cp04542a](https://doi.org/10.1039/c6cp04542a) A. U. Khan, P. Brož, M. Premović, J. Pavlů, J. Vřeštál, X. Yan et al., The Ti–Mn system revisited: experimental investigation and thermodynamic modelling, Phys. Chem. Chem. Phys. 18, 23326-23339 (2016).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.calphad.2009.08.002](https://doi.org/10.1016/j.calphad.2009.08.002) Le Yi Chen, Chong He Li, Kun Wang, He Quan Dong, Xiong Gang Lu, Wei Zhong Ding, Thermodynamic modeling of Ti–Cr–Mn ternary system, Calphad 33, 658-663 (2009).  
_assessment that models this phase_
- [doi:10.1016/j.calphad.2023.102555](https://doi.org/10.1016/j.calphad.2023.102555) A. Walnsch, A. Leineweber, M.J. Kriegel, Calphad, 81, 102555(2023).  
_assessment that models this phase_
- [doi:10.1016/j.jallcom.2021.161957](https://doi.org/10.1016/j.jallcom.2021.161957) Weisen Zheng, Wei Song, Tong Wu, Jingya Wang, Yanlin He, Xiao-Gang Lu, Experimental investigation and thermodynamic modeling of the ternary Ti–Fe–Mn system for hydrogen storage applications, Journal of Alloys and Compounds 891, 161957 (2022).  
_assessment that models this phase_

## HCP_A3 (Mn–Ti)

- Id: `phase:mn-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 4 of 4 calculated diagram(s): 300–1939.99 K, x(Ti) 0.99156–1
- Literature: 7 values (7 accepted) from 3 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:mn-ti:hcp-a3)

Names (9): _corpus: _corpus:phase:mn-ti:hcp-a3  
_paper: _paper:10.1016/j.jallcom.2021.161957:αTi, paper:10.1039/c6cp04542a:(αTi), paper:sha256-85fd53a1a176b694:hcp-A3  
_tdb: _tdb:MnTi-09Che.tdb:HCP_A3, tdb:MnTi-16Kha.tdb:HCP_A3, tdb:MnTi-22Zhe.tdb:HCP_A3, tdb:MnTi-23Wal-3g.tdb:HCP_A3, tdb:MnTi-98Sau-LB.tdb:HCP_A3  


### TDB models of HCP_A3 (5): PHASE and CONSTITUENT statements as written

[MnTi-09Che.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-09Che.tdb): HCP_A3, type code %, sha256 `90819a39b26e29cd…`

~~~~text
37: PHASE HCP_A3 % 2 1 0.5 !
38: CONST HCP_A3 : MN TI% : VA : !
~~~~

[MnTi-16Kha.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-16Kha.tdb): HCP_A3, type code %, sha256 `dc339ab958115ef9…`

~~~~text
35: PHASE HCP_A3 % 2 1 0.5 !
36: CONST HCP_A3 : MN TI% : VA : !
~~~~

[MnTi-22Zhe.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-22Zhe.tdb): HCP_A3, type code %, sha256 `99449a8d5fb4479a…`

~~~~text
44: PHASE HCP_A3 % 2 1 0.5 !
45: CONST HCP_A3 : MN TI% : VA : !
~~~~

[MnTi-23Wal-3g.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-23Wal-3g.tdb): HCP_A3, type code %, sha256 `d277a6ab26486e94…`

~~~~text
48: PHASE HCP_A3 % 2 1 0.5 !
49: CONST HCP_A3 : MN TI% : VA : !
~~~~

[MnTi-98Sau-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-98Sau-LB.tdb): HCP_A3, type code %, sha256 `69981aa4700ea97a…`

~~~~text
52: PHASE HCP_A3 % 2 1 0.5 !
53: CONST HCP_A3 : MN TI% : VA : !
~~~~

Example references (5 of 5; assessments first): 

- [doi:10.1016/j.jallcom.2021.161957](https://doi.org/10.1016/j.jallcom.2021.161957) Weisen Zheng, Wei Song, Tong Wu, Jingya Wang, Yanlin He, Xiao-Gang Lu, Experimental investigation and thermodynamic modeling of the ternary Ti–Fe–Mn system for hydrogen storage applications, Journal of Alloys and Compounds 891, 161957 (2022).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1039/c6cp04542a](https://doi.org/10.1039/c6cp04542a) A. U. Khan, P. Brož, M. Premović, J. Pavlů, J. Vřeštál, X. Yan et al., The Ti–Mn system revisited: experimental investigation and thermodynamic modelling, Phys. Chem. Chem. Phys. 18, 23326-23339 (2016).  
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1016/j.calphad.2009.08.002](https://doi.org/10.1016/j.calphad.2009.08.002) Le Yi Chen, Chong He Li, Kun Wang, He Quan Dong, Xiong Gang Lu, Wei Zhong Ding, Thermodynamic modeling of Ti–Cr–Mn ternary system, Calphad 33, 658-663 (2009).  
_assessment that models this phase_
- [doi:10.1016/j.calphad.2023.102555](https://doi.org/10.1016/j.calphad.2023.102555) A. Walnsch, A. Leineweber, M.J. Kriegel, Calphad, 81, 102555(2023).  
_assessment that models this phase_
- [doi:10.1007/bf02868287](https://doi.org/10.1007/bf02868287) J.L. Murray, The Mn–Ti (Manganese-Titanium) system, Bull. Alloy Phase Diagr. 2 (1981) 334–343.  
_cited as the source of values for this phase_

## LIQUID (Mn–Ti)

- Id: `phase:mn-ti:liquid`; status `assigned`
- Structure: liquid; type `st:liquid`; liquid; confidence high
- Stability: stable in 4 of 4 calculated diagram(s): 1454.45–2500 K, x(Ti) 0–1
- Literature: 64 values (58 accepted) from 4 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:mn-ti:liquid)

Names (12): _corpus: _corpus:phase:mn-ti:liquid  
_paper: _paper:10.1016/j.calphad.2009.08.002:Liquid, paper:10.1016/j.calphad.2009.08.002:liquid, paper:10.1016/j.jallcom.2021.161957:L, paper:10.1016/j.jallcom.2021.161957:liquid, paper:10.1039/c6cp04542a:L, paper:sha256-85fd53a1a176b694:Liquid  
_tdb: _tdb:MnTi-09Che.tdb:LIQUID, tdb:MnTi-16Kha.tdb:LIQUID, tdb:MnTi-22Zhe.tdb:LIQUID, tdb:MnTi-23Wal-3g.tdb:LIQUID, tdb:MnTi-98Sau-LB.tdb:LIQUID  


### TDB models of LIQUID (5): PHASE and CONSTITUENT statements as written

[MnTi-09Che.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-09Che.tdb): LIQUID, type code %, sha256 `90819a39b26e29cd…`

~~~~text
22: PHASE LIQUID:L % 1 1 !
23: CONST LIQUID:L : MN TI : !
~~~~

[MnTi-16Kha.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-16Kha.tdb): LIQUID, type code %, sha256 `dc339ab958115ef9…`

~~~~text
20: PHASE LIQUID:L % 1 1 !
21: CONST LIQUID:L : MN TI : !
~~~~

[MnTi-22Zhe.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-22Zhe.tdb): LIQUID, type code %, sha256 `99449a8d5fb4479a…`

~~~~text
29: PHASE LIQUID:L % 1 1 !
30: CONST LIQUID:L : MN TI : !
~~~~

[MnTi-23Wal-3g.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-23Wal-3g.tdb): LIQUID, type code %, sha256 `d277a6ab26486e94…`

~~~~text
33: PHASE LIQUID:L % 1 1 !
34: CONST LIQUID:L : MN TI : !
~~~~

[MnTi-98Sau-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-98Sau-LB.tdb): LIQUID, type code %, sha256 `69981aa4700ea97a…`

~~~~text
37: PHASE LIQUID:L % 1 1 !
38: CONST LIQUID:L : MN TI : !
~~~~

Example references (5 of 5; assessments first): 

- [doi:10.1016/j.jallcom.2021.161957](https://doi.org/10.1016/j.jallcom.2021.161957) Weisen Zheng, Wei Song, Tong Wu, Jingya Wang, Yanlin He, Xiao-Gang Lu, Experimental investigation and thermodynamic modeling of the ternary Ti–Fe–Mn system for hydrogen storage applications, Journal of Alloys and Compounds 891, 161957 (2022).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1039/c6cp04542a](https://doi.org/10.1039/c6cp04542a) A. U. Khan, P. Brož, M. Premović, J. Pavlů, J. Vřeštál, X. Yan et al., The Ti–Mn system revisited: experimental investigation and thermodynamic modelling, Phys. Chem. Chem. Phys. 18, 23326-23339 (2016).  
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1016/j.calphad.2009.08.002](https://doi.org/10.1016/j.calphad.2009.08.002) Le Yi Chen, Chong He Li, Kun Wang, He Quan Dong, Xiong Gang Lu, Wei Zhong Ding, Thermodynamic modeling of Ti–Cr–Mn ternary system, Calphad 33, 658-663 (2009).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.calphad.2023.102555](https://doi.org/10.1016/j.calphad.2023.102555) A. Walnsch, A. Leineweber, M.J. Kriegel, Calphad, 81, 102555(2023).  
_assessment that models this phase_
- [doi:10.1007/bf02868287](https://doi.org/10.1007/bf02868287) J.L. Murray, The Mn–Ti (Manganese-Titanium) system, Bull. Alloy Phase Diagr. 2 (1981) 334–343.  
_cited as the source of values for this phase_

## MN11TI9 (Mn–Ti)

- Id: `phase:mn-ti:mn11ti9`; status `assigned`
- Structure: Re25Zr21 · hR92 · R-3c (167); type `st:re25zr21-hr92`; 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_on_hull_entry_in_both, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
- Stoichiometry: Mn 0.5500, Ti 0.4500
- Stability: stable in 2 of 2 calculated diagram(s): 300–1496.79 K, x(Ti) 0.45–0.45
- Literature: 23 values (22 accepted) from 2 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:mn-ti:mn11ti9)

Names (6): _corpus: _corpus:phase:mn-ti:mn11ti9  
_paper: _paper:10.1016/j.jallcom.2021.161957:βTiMn, paper:10.1039/c6cp04542a:TiMn1+x  
_tdb: _tdb:MnTi-16Kha.tdb:MN11TI9, tdb:MnTi-22Zhe.tdb:MN11TI9, tdb:MnTi-23Wal-3g.tdb:MN11TI9  


### TDB models of MN11TI9 (3): PHASE and CONSTITUENT statements as written

[MnTi-16Kha.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-16Kha.tdb): MN11TI9, type code %, sha256 `dc339ab958115ef9…`

~~~~text
65: PHASE MN11TI9 % 2 0.55 0.45 !
66: CONST MN11TI9 : MN : TI : !
~~~~

[MnTi-22Zhe.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-22Zhe.tdb): MN11TI9, type code %, sha256 `99449a8d5fb4479a…`

~~~~text
74: PHASE MN11TI9 % 2 0.55 0.45 !
75: CONST MN11TI9 : MN : TI : !
~~~~

[MnTi-23Wal-3g.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-23Wal-3g.tdb): MN11TI9, type code %, sha256 `d277a6ab26486e94…`

~~~~text
88: PHASE MN11TI9 % 2 0.55 0.45 !
89: CONST MN11TI9 : MN : TI : !
~~~~

Example references (4 of 4; assessments first): 

- [doi:10.1016/j.jallcom.2021.161957](https://doi.org/10.1016/j.jallcom.2021.161957) Weisen Zheng, Wei Song, Tong Wu, Jingya Wang, Yanlin He, Xiao-Gang Lu, Experimental investigation and thermodynamic modeling of the ternary Ti–Fe–Mn system for hydrogen storage applications, Journal of Alloys and Compounds 891, 161957 (2022).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1039/c6cp04542a](https://doi.org/10.1039/c6cp04542a) A. U. Khan, P. Brož, M. Premović, J. Pavlů, J. Vřeštál, X. Yan et al., The Ti–Mn system revisited: experimental investigation and thermodynamic modelling, Phys. Chem. Chem. Phys. 18, 23326-23339 (2016).  
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1016/j.calphad.2023.102555](https://doi.org/10.1016/j.calphad.2023.102555) A. Walnsch, A. Leineweber, M.J. Kriegel, Calphad, 81, 102555(2023).  
_assessment that models this phase_
- [doi:10.1007/bf02868287](https://doi.org/10.1007/bf02868287) J.L. Murray, The Mn–Ti (Manganese-Titanium) system, Bull. Alloy Phase Diagr. 2 (1981) 334–343.  
_cited as the source of values for this phase_

## MN2TI_C14 (Mn–Ti)

- Id: `phase:mn-ti:mn2ti-c14`; status `assigned`
- Structure: MgZn2 · C14 · hP12 · P6_3/mmc (194); type `st:c14-mgzn2-hp12`; tier A: standard phase name; confidence high
- Caveat: partitioned order/disorder model in MnTi-98Sau-LB.tdb also describes the disordered state
- Stability: stable in 1 of 1 calculated diagram(s): 1421.32–1580 K, x(Ti) 0.29758–0.40288
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:mn-ti:mn2ti-c14)

Names (2): _corpus: _corpus:phase:mn-ti:mn2ti-c14  
_tdb: _tdb:MnTi-98Sau-LB.tdb:MN2TI_C14  


### TDB models of MN2TI_C14 (1): PHASE and CONSTITUENT statements as written

[MnTi-98Sau-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-98Sau-LB.tdb): MN2TI_C14, type code %, sha256 `69981aa4700ea97a…`

~~~~text
77: PHASE MN2TI_C14 % 2 2 1 !
78: CONST MN2TI_C14 : MN% TI : MN TI% : !
~~~~

## MN3TI (Mn–Ti)

- Id: `phase:mn-ti:mn3ti`; status `assigned`
- Structure: Mn3Ti · oP74 · Pbam (55); type `st:mn3ti-op74`; 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_on_hull_entry_in_both, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
- Stoichiometry: Mn 0.7500, Ti 0.2500
- Stability: stable in 4 of 4 calculated diagram(s): 1094.35–1570 K, x(Ti) 0.25–0.25
- Literature: 33 values (33 accepted) from 4 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:mn-ti:mn3ti)

Names (10): _corpus: _corpus:phase:mn-ti:mn3ti  
_paper: _paper:10.1016/j.calphad.2009.08.002:TiMn3, paper:10.1016/j.jallcom.2021.161957:TiMn3, paper:10.1039/c6cp04542a:TiMn3, paper:sha256-85fd53a1a176b694:Mn3Ti  
_tdb: _tdb:MnTi-09Che.tdb:MN3TI, tdb:MnTi-16Kha.tdb:MN3TI, tdb:MnTi-22Zhe.tdb:MN3TI, tdb:MnTi-23Wal-3g.tdb:MN3TI, tdb:MnTi-98Sau-LB.tdb:MN3TI  


### TDB models of MN3TI (5): PHASE and CONSTITUENT statements as written

[MnTi-09Che.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-09Che.tdb): MN3TI, type code %, sha256 `90819a39b26e29cd…`

~~~~text
57: PHASE MN3TI % 2 3 1 !
58: CONST MN3TI : MN : TI : !
~~~~

[MnTi-16Kha.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-16Kha.tdb): MN3TI, type code %, sha256 `dc339ab958115ef9…`

~~~~text
55: PHASE MN3TI % 2 3 1 !
56: CONST MN3TI : MN : TI : !
~~~~

[MnTi-22Zhe.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-22Zhe.tdb): MN3TI, type code %, sha256 `99449a8d5fb4479a…`

~~~~text
64: PHASE MN3TI % 2 3 1 !
65: CONST MN3TI : MN : TI : !
~~~~

[MnTi-23Wal-3g.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-23Wal-3g.tdb): MN3TI, type code %, sha256 `d277a6ab26486e94…`

~~~~text
78: PHASE MN3TI % 2 0.75 0.25 !
79: CONST MN3TI : MN : TI : !
~~~~

[MnTi-98Sau-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-98Sau-LB.tdb): MN3TI, type code %, sha256 `69981aa4700ea97a…`

~~~~text
72: PHASE MN3TI % 2 3 1 !
73: CONST MN3TI : MN : TI : !
~~~~

Example references (5 of 5; assessments first): 

- [doi:10.1016/j.jallcom.2021.161957](https://doi.org/10.1016/j.jallcom.2021.161957) Weisen Zheng, Wei Song, Tong Wu, Jingya Wang, Yanlin He, Xiao-Gang Lu, Experimental investigation and thermodynamic modeling of the ternary Ti–Fe–Mn system for hydrogen storage applications, Journal of Alloys and Compounds 891, 161957 (2022).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1039/c6cp04542a](https://doi.org/10.1039/c6cp04542a) A. U. Khan, P. Brož, M. Premović, J. Pavlů, J. Vřeštál, X. Yan et al., The Ti–Mn system revisited: experimental investigation and thermodynamic modelling, Phys. Chem. Chem. Phys. 18, 23326-23339 (2016).  
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1016/j.calphad.2009.08.002](https://doi.org/10.1016/j.calphad.2009.08.002) Le Yi Chen, Chong He Li, Kun Wang, He Quan Dong, Xiong Gang Lu, Wei Zhong Ding, Thermodynamic modeling of Ti–Cr–Mn ternary system, Calphad 33, 658-663 (2009).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.calphad.2023.102555](https://doi.org/10.1016/j.calphad.2023.102555) A. Walnsch, A. Leineweber, M.J. Kriegel, Calphad, 81, 102555(2023).  
_assessment that models this phase_
- [doi:10.1007/bf02868287](https://doi.org/10.1007/bf02868287) J.L. Murray, The Mn–Ti (Manganese-Titanium) system, Bull. Alloy Phase Diagr. 2 (1981) 334–343.  
_cited as the source of values for this phase_

## MN4TI (Mn–Ti)

- Id: `phase:mn-ti:mn4ti`; status `needs_review`
- No structure assigned. Why: assessment_declared_compound_differs_from_model_composition; no_on_hull_entry_in_both; no_structure_token
- Candidate (literature_printed): R-(Co,Cr,Mo) · hR53 — printed with a label mapped to this phase
- Candidate (sgte_mmc2): R-(Co,Cr,Mo) · hR53 · R-3 (148) — Hallstedt 2025 mmc2 row for MN4TI: Mn4Ti
- Candidate (tdb_comment): R- · Co · Cr,Mo — MnTi-09Che.tdb: 'Prototype R-(Co,Cr,Mo) (hR53, R-3)'
- Candidate (tdb_comment): R- · Co · Cr,Mo — MnTi-16Kha.tdb: 'Prototype R-(Co,Cr,Mo) (hR53, R-3)'
- Candidate (tdb_comment): R- · Co · Cr,Mo — MnTi-22Zhe.tdb: 'Prototype R-(Co,Cr,Mo) (hR53, R-3)'
- Candidate (tdb_comment): R- · Co · Cr,Mo — MnTi-23Wal-3g.tdb: 'Prototype R-(Co,Cr,Mo) (hR53, R-3)'
- Candidate (tdb_comment): R- · Co · Cr,Mo — MnTi-98Sau-LB.tdb: 'Prototype R-(Co,Cr,Mo) (hR53, R-3)'
- Stoichiometry: Mn 0.8150, Ti 0.1850
- Stability: stable in 4 of 4 calculated diagram(s): 1122.03–1515.91 K, x(Ti) 0.185–0.185
- Literature: 45 values (41 accepted) from 4 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:mn-ti:mn4ti)

Names (10): _corpus: _corpus:phase:mn-ti:mn4ti  
_paper: _paper:10.1016/j.calphad.2009.08.002:TiMn4, paper:10.1016/j.jallcom.2021.161957:TiMn4, paper:10.1039/c6cp04542a:TiMn4, paper:sha256-85fd53a1a176b694:Mn4Ti  
_tdb: _tdb:MnTi-09Che.tdb:MN4TI, tdb:MnTi-16Kha.tdb:MN4TI, tdb:MnTi-22Zhe.tdb:MN4TI, tdb:MnTi-23Wal-3g.tdb:MN4TI, tdb:MnTi-98Sau-LB.tdb:MN4TI  


### TDB models of MN4TI (5): PHASE and CONSTITUENT statements as written

[MnTi-09Che.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-09Che.tdb): MN4TI, type code %, sha256 `90819a39b26e29cd…`

~~~~text
52: PHASE MN4TI % 2 0.815 0.185 !
53: CONST MN4TI : MN : TI : !
~~~~

[MnTi-16Kha.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-16Kha.tdb): MN4TI, type code %, sha256 `dc339ab958115ef9…`

~~~~text
50: PHASE MN4TI % 2 0.815 0.185 !
51: CONST MN4TI : MN : TI : !
~~~~

[MnTi-22Zhe.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-22Zhe.tdb): MN4TI, type code %, sha256 `99449a8d5fb4479a…`

~~~~text
59: PHASE MN4TI % 2 0.815 0.185 !
60: CONST MN4TI : MN : TI : !
~~~~

[MnTi-23Wal-3g.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-23Wal-3g.tdb): MN4TI, type code %, sha256 `d277a6ab26486e94…`

~~~~text
73: PHASE MN4TI % 2 0.815 0.185 !
74: CONST MN4TI : MN : TI : !
~~~~

[MnTi-98Sau-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-98Sau-LB.tdb): MN4TI, type code %, sha256 `69981aa4700ea97a…`

~~~~text
67: PHASE MN4TI % 2 0.815 0.185 !
68: CONST MN4TI : MN : TI : !
~~~~

Example references (5 of 5; assessments first): 

- [doi:10.1016/j.jallcom.2021.161957](https://doi.org/10.1016/j.jallcom.2021.161957) Weisen Zheng, Wei Song, Tong Wu, Jingya Wang, Yanlin He, Xiao-Gang Lu, Experimental investigation and thermodynamic modeling of the ternary Ti–Fe–Mn system for hydrogen storage applications, Journal of Alloys and Compounds 891, 161957 (2022).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1039/c6cp04542a](https://doi.org/10.1039/c6cp04542a) A. U. Khan, P. Brož, M. Premović, J. Pavlů, J. Vřeštál, X. Yan et al., The Ti–Mn system revisited: experimental investigation and thermodynamic modelling, Phys. Chem. Chem. Phys. 18, 23326-23339 (2016).  
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1016/j.calphad.2009.08.002](https://doi.org/10.1016/j.calphad.2009.08.002) Le Yi Chen, Chong He Li, Kun Wang, He Quan Dong, Xiong Gang Lu, Wei Zhong Ding, Thermodynamic modeling of Ti–Cr–Mn ternary system, Calphad 33, 658-663 (2009).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.calphad.2023.102555](https://doi.org/10.1016/j.calphad.2023.102555) A. Walnsch, A. Leineweber, M.J. Kriegel, Calphad, 81, 102555(2023).  
_assessment that models this phase_
- [doi:10.1007/bf02868287](https://doi.org/10.1007/bf02868287) J.L. Murray, The Mn–Ti (Manganese-Titanium) system, Bull. Alloy Phase Diagr. 2 (1981) 334–343.  
_cited as the source of values for this phase_

## MN9TI11 (Mn–Ti)

- Id: `phase:mn-ti:mn9ti11`; status `needs_review`
- No structure assigned. Why: no_on_hull_entry_in_both; no_structure_token; sgte_mmc2_rows_disagree
- Candidate (literature_printed): CrFe · tP30 — printed with a label mapped to this phase
- Candidate (sgte_mmc2): sigma-CrFe · D8_b · tP30 · P4_2/mnm (136) — Hallstedt 2025 mmc2 row for MN9TI11: Mn9Ti11
- Candidate (sgte_mmc2): (Mn11Ti9) — Hallstedt 2025 mmc2 row for MN9TI11: Mn9Ti11 (not clear if this is a separate phase)
- Candidate (tdb_comment): CrFe · tP30 · P4_2/mnm — MnTi-22Zhe.tdb: 'Prototype CrFe (tP30, P4_2/mnm)'
- Stoichiometry: Mn 0.4500, Ti 0.5500
- Stability: stable in 2 of 2 calculated diagram(s): 300–1243.85 K, x(Ti) 0.55–0.55
- Literature: 14 values (14 accepted) from 2 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:mn-ti:mn9ti11)

Names (7): _corpus: _corpus:phase:mn-ti:mn9ti11  
_paper: _paper:10.1016/j.jallcom.2021.161957:αTiMn, paper:10.1039/c6cp04542a:TiMn1-x, paper:10.1039/c6cp04542a:TiMn1−x  
_tdb: _tdb:MnTi-16Kha.tdb:MN9TI11, tdb:MnTi-22Zhe.tdb:MN9TI11, tdb:MnTi-23Wal-3g.tdb:MN9TI11  


### TDB models of MN9TI11 (3): PHASE and CONSTITUENT statements as written

[MnTi-16Kha.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-16Kha.tdb): MN9TI11, type code %, sha256 `dc339ab958115ef9…`

~~~~text
75: PHASE MN9TI11 % 2 0.45 0.55 !
76: CONST MN9TI11 : MN : TI : !
~~~~

[MnTi-22Zhe.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-22Zhe.tdb): MN9TI11, type code %, sha256 `99449a8d5fb4479a…`

~~~~text
79: PHASE MN9TI11 % 2 0.45 0.55 !
80: CONST MN9TI11 : MN : TI : !
~~~~

[MnTi-23Wal-3g.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-23Wal-3g.tdb): MN9TI11, type code %, sha256 `d277a6ab26486e94…`

~~~~text
98: PHASE MN9TI11 % 2 0.45 0.55 !
99: CONST MN9TI11 : MN : TI : !
~~~~

Example references (4 of 4; assessments first): 

- [doi:10.1039/c6cp04542a](https://doi.org/10.1039/c6cp04542a) A. U. Khan, P. Brož, M. Premović, J. Pavlů, J. Vřeštál, X. Yan et al., The Ti–Mn system revisited: experimental investigation and thermodynamic modelling, Phys. Chem. Chem. Phys. 18, 23326-23339 (2016).  
_assessment that models this phase; cited as the source of values for this phase; reports values for this phase_
- [doi:10.1016/j.jallcom.2021.161957](https://doi.org/10.1016/j.jallcom.2021.161957) Weisen Zheng, Wei Song, Tong Wu, Jingya Wang, Yanlin He, Xiao-Gang Lu, Experimental investigation and thermodynamic modeling of the ternary Ti–Fe–Mn system for hydrogen storage applications, Journal of Alloys and Compounds 891, 161957 (2022).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/j.calphad.2023.102555](https://doi.org/10.1016/j.calphad.2023.102555) A. Walnsch, A. Leineweber, M.J. Kriegel, Calphad, 81, 102555(2023).  
_assessment that models this phase_
- [doi:10.1007/bf02868287](https://doi.org/10.1007/bf02868287) J.L. Murray, The Mn–Ti (Manganese-Titanium) system, Bull. Alloy Phase Diagr. 2 (1981) 334–343.  
_cited as the source of values for this phase_

## MNTI (Mn–Ti)

- Id: `phase:mn-ti:mnti`; status `needs_review`
- No structure assigned. Why: no_structure_token; polymorph_family:other phases of this system have the same composition
- Candidate (dft_oqmd): Pm-3m (221) — on-hull OQMD Mn1 Ti1 at x(TI)=0.5000
- Candidate (tdb_comment): CrFe · tP30 · P4_2/mnm — MnTi-16Kha.tdb: 'Prototype CrFe (tP30, P4_2/mnm)'
- Stoichiometry: Mn 0.5000, Ti 0.5000
- Stability: stable in 1 of 1 calculated diagram(s): 300–1202.92 K, x(Ti) 0.5–0.5
- Literature: 2 values (2 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:mn-ti:mnti)

Names (3): _corpus: _corpus:phase:mn-ti:mnti  
_paper: _paper:10.1039/c6cp04542a:Ti50Mn50  
_tdb: _tdb:MnTi-16Kha.tdb:MNTI  


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

[MnTi-16Kha.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-16Kha.tdb): MNTI, type code %, sha256 `dc339ab958115ef9…`

~~~~text
70: PHASE MNTI % 2 1 1 !
71: CONST MNTI : MN : TI : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1039/c6cp04542a](https://doi.org/10.1039/c6cp04542a) A. U. Khan, P. Brož, M. Premović, J. Pavlů, J. Vřeštál, X. Yan et al., The Ti–Mn system revisited: experimental investigation and thermodynamic modelling, Phys. Chem. Chem. Phys. 18, 23326-23339 (2016).  
_assessment that models this phase; reports values for this phase_

## MNTI_ALPHA (Mn–Ti)

- Id: `phase:mn-ti:mnti-alpha`; status `needs_review`
- No structure assigned. Why: no_structure_token; polymorph_family:other phases of this system have the same composition
- Candidate (dft_oqmd): Pm-3m (221) — on-hull OQMD Mn1 Ti1 at x(TI)=0.5000
- Candidate (tdb_comment): CrFe · tP30 · P4_2/mnm — MnTi-09Che.tdb: 'Prototype CrFe (tP30, P4_2/mnm)'
- Candidate (tdb_comment): CrFe · tP30 · P4_2/mnm — MnTi-98Sau-LB.tdb: 'Prototype CrFe (tP30, P4_2/mnm)'
- Stoichiometry: Mn 0.5000, Ti 0.5000
- Stability: stable in 2 of 2 calculated diagram(s): 433.19–1223.96 K, x(Ti) 0.5–0.5
- Literature: 3 values (3 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:mn-ti:mnti-alpha)

Names (4): _corpus: _corpus:phase:mn-ti:mnti-alpha  
_paper: _paper:sha256-85fd53a1a176b694:MnTi-α  
_tdb: _tdb:MnTi-09Che.tdb:MNTI_ALPHA, tdb:MnTi-98Sau-LB.tdb:MNTI_ALPHA  


### TDB models of MNTI_ALPHA (2): PHASE and CONSTITUENT statements as written

[MnTi-09Che.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-09Che.tdb): MNTI_ALPHA, type code %, sha256 `90819a39b26e29cd…`

~~~~text
67: PHASE MNTI_ALPHA % 2 1 1 !
68: CONST MNTI_ALPHA : MN : TI : !
~~~~

[MnTi-98Sau-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-98Sau-LB.tdb): MNTI_ALPHA, type code %, sha256 `69981aa4700ea97a…`

~~~~text
87: PHASE MNTI_ALPHA % 2 1 1 !
88: CONST MNTI_ALPHA : MN : TI : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1016/j.calphad.2009.08.002](https://doi.org/10.1016/j.calphad.2009.08.002) Le Yi Chen, Chong He Li, Kun Wang, He Quan Dong, Xiong Gang Lu, Wei Zhong Ding, Thermodynamic modeling of Ti–Cr–Mn ternary system, Calphad 33, 658-663 (2009).  
_assessment that models this phase_

## MNTI_BETA (Mn–Ti)

- Id: `phase:mn-ti:mnti-beta`; status `needs_review`
- No structure assigned. Why: no_on_hull_entry_in_both; no_structure_token
- Candidate (sgte_mmc2): Re25Zr21 · hR92 · R-3c (167) — Hallstedt 2025 mmc2 row for MNTI_BETA: MnTi-beta
- Candidate (tdb_comment): Re25Zr21 · hR92 · R-3c — MnTi-09Che.tdb: 'Prototype Re25Zr21 (hR92, R-3c)'
- Candidate (tdb_comment): Re25Zr21 · hR92 · R-3c — MnTi-98Sau-LB.tdb: 'Prototype Re25Zr21 (hR92, R-3c)'
- Stoichiometry: Mn 0.5150, Ti 0.4850
- Stability: stable in 2 of 2 calculated diagram(s): 1071.29–1500.16 K, x(Ti) 0.485–0.485
- Literature: 11 values (10 accepted) from 2 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:mn-ti:mnti-beta)

Names (5): _corpus: _corpus:phase:mn-ti:mnti-beta  
_paper: _paper:10.1016/j.calphad.2009.08.002:βTiMn, paper:sha256-85fd53a1a176b694:MnTi-β  
_tdb: _tdb:MnTi-09Che.tdb:MNTI_BETA, tdb:MnTi-98Sau-LB.tdb:MNTI_BETA  


### TDB models of MNTI_BETA (2): PHASE and CONSTITUENT statements as written

[MnTi-09Che.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-09Che.tdb): MNTI_BETA, type code %, sha256 `90819a39b26e29cd…`

~~~~text
72: PHASE MNTI_BETA % 2 0.515 0.485 !
73: CONST MNTI_BETA : MN : TI : !
~~~~

[MnTi-98Sau-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-98Sau-LB.tdb): MNTI_BETA, type code %, sha256 `69981aa4700ea97a…`

~~~~text
92: PHASE MNTI_BETA % 2 0.515 0.485 !
93: CONST MNTI_BETA : MN : TI : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1016/j.calphad.2009.08.002](https://doi.org/10.1016/j.calphad.2009.08.002) Le Yi Chen, Chong He Li, Kun Wang, He Quan Dong, Xiong Gang Lu, Wei Zhong Ding, Thermodynamic modeling of Ti–Cr–Mn ternary system, Calphad 33, 658-663 (2009).  
_assessment that models this phase; reports values for this phase_

## MNTI_D8B (Mn–Ti)

- Id: `phase:mn-ti:mnti-d8b`; status `assigned`
- Structure: sigma-CrFe · D8_b · tP30 · P4_2/mnm (136); type `st:d8-b-sigma-crfe-tp30`; tier A: standard phase name; confidence high
- Stoichiometry: Mn 0.5000, Ti 0.5000
- Stability: no calculated diagram
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:mn-ti:mnti-d8b)

Names (2): _corpus: _corpus:phase:mn-ti:mnti-d8b  
_tdb: _tdb:MnTi-23Wal-3g.tdb:MNTI_D8B  


### TDB models of MNTI_D8B (1): PHASE and CONSTITUENT statements as written

[MnTi-23Wal-3g.tdb](https://orchid-project.org/data/databases/sgte-binary/MnTi-23Wal-3g.tdb): MNTI_D8B, type code %, sha256 `d277a6ab26486e94…`

~~~~text
93: PHASE MNTI_D8B % 2 0.5 0.5 !
94: CONST MNTI_D8B : MN : TI : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1016/j.calphad.2023.102555](https://doi.org/10.1016/j.calphad.2023.102555) A. Walnsch, A. Leineweber, M.J. Kriegel, Calphad, 81, 102555(2023).  
_assessment that models 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).
