# Co–W phases

> Co–W system: 10 phases (tier A 6, tier C 1, liquid 1, needs_review 2); 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/CO-W.html · Markdown: https://data.orchid-project.org/phases/pages/CO-W.md

10 phases (tier A 6, tier C 1, liquid 1, needs_review 2); 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=CO-W) · [full JSON](https://data.orchid-project.org/phases/systems/CO-W.json) · [Co–W system page](https://data.orchid-project.org/systems/CO-W.html) · [Markdown](https://data.orchid-project.org/phases/pages/CO-W.md) · [field reference](https://data.orchid-project.org/phases/SCHEMA.md)

Table: Phases of the Co–W system (10)

| Phase | Structure | Basis | Stability (calculated) | Literature values | TDB models |
|---|---|---|---|---:|---:|
| [BCC_A2](#phase-co-w-bcc-a2); _phase:co-w:bcc-a2_ | W · A2 · cI2 · Im-3m (229) | tier A: standard phase name | stable in 10 of 10 calculated diagram(s): 300–3999.94 K, x(W) 0.96379–1 | 4 | 10 |
| [CO3W_D019](#phase-co-w-co3w-d019); _phase:co-w:co3w-d019_ | Ni3Sn · D0_19 · hP8 · P6_3/mmc (194) | tier A: standard phase name | stable in 9 of 9 calculated diagram(s): 300–1420 K, x(W) 0.15–0.2683 | 10 | 9 |
| [CO7W6_D85](#phase-co-w-co7w6-d85); _phase:co-w:co7w6-d85_ | Fe7W6 · D8_5 · hR13 · R-3m (166) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–1986.19 K, x(W) 0.46154–0.46154 | 0 | 1 |
| [MU_D85](#phase-co-w-d85-mu); _phase:co-w:d85-mu_ | Fe7W6 · D8_5 · hR13 · R-3m (166) | tier A: standard phase name | stable in 9 of 9 calculated diagram(s): 300–2021.78 K, x(W) 0.41701–0.49493 | 20 | 9 |
| [DIS_MU](#phase-co-w-dis-mu); _phase:co-w:dis-mu_ |  | needs_review | not stable in 1 calculated diagram(s) | 0 | 1 |
| [FCC_4SL](#phase-co-w-fcc-4sl); _phase:co-w:fcc-4sl_ |  | needs_review | stable in 1 of 1 calculated diagram(s): 694.23–1780.6 K, x(W) 0–0.17103 | 0 | 1 |
| [FCC_A1](#phase-co-w-fcc-a1); _phase:co-w:fcc-a1_ | Cu · A1 · cF4 · Fm-3m (225) | tier A: standard phase name | stable in 10 of 10 calculated diagram(s): 693.26–1782.48 K, x(W) 0–0.17859 | 30 | 11 |
| [HCP_A3](#phase-co-w-hcp-a3); _phase:co-w:hcp-a3_ | Mg · A3 · hP2 · P6_3/mmc (194) | tier A: standard phase name | stable in 10 of 10 calculated diagram(s): 300–718.77 K, x(W) 0–0.0184 | 3 | 10 |
| [LIQUID](#phase-co-w-liquid); _phase:co-w:liquid_ | liquid | liquid | stable in 10 of 10 calculated diagram(s): 1679.34–4000 K, x(W) 0–1 | 12 | 10 |
| [R_PHASE](#phase-co-w-phase-r); _phase:co-w:phase-r_ | R-(Co,Cr,Mo) · hR53 · R-3 (148) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 2 of 2 calculated diagram(s): 300–579.59 K, x(W) 0.48262–0.49034 | 0 | 2 |

## BCC_A2 (Co–W)

- Id: `phase:co-w: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 10 of 10 calculated diagram(s): 300–3999.94 K, x(W) 0.96379–1
- Literature: 4 values (4 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:co-w:bcc-a2)

Names (12): _corpus: _corpus:phase:co-w:bcc-a2  
_paper: _paper:10.1016/j.calphad.2017.09.007:(W)  
_tdb: _tdb:CoW-05Mar.tdb:BCC_A2, tdb:CoW-05Sat.tdb:BCC_A2, tdb:CoW-15Kap.tdb:BCC_A2, tdb:CoW-17Wan.tdb:BCC_A2, tdb:CoW-18Cac.tdb:BCC_A2, tdb:CoW-18Liu.tdb:BCC_A2, tdb:CoW-19Kap.tdb:BCC_A2, tdb:CoW-19Wan.tdb:BCC_A2, tdb:CoW-85Gab.tdb:BCC_A2, tdb:CoW-89Fer-LB.tdb:BCC_A2  


### TDB models of BCC_A2 (10): PHASE and CONSTITUENT statements as written

[CoW-05Mar.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-05Mar.tdb): BCC_A2, type code %B, sha256 `01a3c66282bd5b1d…`

~~~~text
33: PHASE BCC_A2 %B 2 1 3 !
34: CONST BCC_A2 : CO W% : VA : !
~~~~

[CoW-05Sat.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-05Sat.tdb): BCC_A2, type code %B, sha256 `1f1f9784293cea69…`

~~~~text
30: PHASE BCC_A2 %B 2 1 3 !
31: CONST BCC_A2 : CO W% : VA : !
~~~~

[CoW-15Kap.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-15Kap.tdb): BCC_A2, type code %B, sha256 `200261711d9333d5…`

~~~~text
31: PHASE BCC_A2 %B 2 1 3 !
32: CONST BCC_A2 : CO W% : VA : !
~~~~

[CoW-17Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-17Wan.tdb): BCC_A2, type code %B, sha256 `4b8a669596d303a4…`

~~~~text
40: PHASE BCC_A2 %B 2 1 3 !
41: CONST BCC_A2 : CO W% : VA : !
~~~~

[CoW-18Cac.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-18Cac.tdb): BCC_A2, type code %B, sha256 `ea38c8c1cc7a87aa…`

~~~~text
32: PHASE BCC_A2 %B 2 1 3 !
33: CONST BCC_A2 : CO W% : VA : !
~~~~

[CoW-18Liu.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-18Liu.tdb): BCC_A2, type code %B, sha256 `9597878804aaa859…`

~~~~text
32: PHASE BCC_A2 %B 2 1 3 !
33: CONST BCC_A2 : CO W% : VA : !
~~~~

[CoW-19Kap.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-19Kap.tdb): BCC_A2, type code %B, sha256 `b705eaf27f721bc9…`

~~~~text
31: PHASE BCC_A2 %B 2 1 3 !
32: CONST BCC_A2 : CO W% : VA : !
~~~~

[CoW-19Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-19Wan.tdb): BCC_A2, type code %B, sha256 `9fc3705c1fb52800…`

~~~~text
43: PHASE BCC_A2 %B 2 1 3 !
44: CONST BCC_A2 : CO W% : VA : !
~~~~

[CoW-85Gab.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-85Gab.tdb): BCC_A2, type code %B, sha256 `e50d980889fc6e3e…`

~~~~text
37: PHASE BCC_A2 %B 2 1 3 !
38: CONST BCC_A2 : CO W% : VA : !
~~~~

[CoW-89Fer-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-89Fer-LB.tdb): BCC_A2, type code %B, sha256 `2723d34dfa7f67d2…`

~~~~text
30: PHASE BCC_A2 %B 2 1 3 !
31: CONST BCC_A2 : CO W% : VA : !
~~~~

Example references (10 of 10; assessments first): 

- [doi:10.1016/j.calphad.2017.09.007](https://doi.org/10.1016/j.calphad.2017.09.007) Peisheng Wang, Wei Xiong, Ursula R. Kattner, Carelyn E. Campbell, Eric A. Lass, Oleg Y. Kontsevoi et al., Thermodynamic re-assessment of the Al-Co-W system, Calphad 59, 112-130 (2017).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1007/BF02651660](https://doi.org/10.1007/BF02651660) A. Fernandez Guillermet, Metall. Trans. A, 20A, 935-56(1989).  
_assessment that models this phase_
- [doi:10.1007/s10853-019-03616-3](https://doi.org/10.1007/s10853-019-03616-3) Peisheng Wang, Oleg Y. Kontsevoi, Gregory B. Olson, Thermodynamic analysis of the Co–W system, J Mater Sci 54, 10261-10269 (2019).  
_assessment that models this phase_
- [doi:10.1016/j.calphad.2015.04.012](https://doi.org/10.1016/j.calphad.2015.04.012) B. Kaplan, A. Blomqvist, M. Selleby, S. Norgren, Calphad, 50, 59-67(2015).  
_assessment that models this phase_
- [doi:10.1016/j.calphad.2019.05.003](https://doi.org/10.1016/j.calphad.2019.05.003) B. Kaplan, Calphad, 66, 101626(2019).  
_assessment that models this phase_
- [doi:10.1016/j.jallcom.2017.09.327](https://doi.org/10.1016/j.jallcom.2017.09.327) G. Cacciamani, G. Roncallo, Y. Wang, E. Vacchieri, A. Costa, J. Alloys Compd., 730, 291-310(2018).  
_assessment that models this phase_
- [doi:10.1016/S1875-5372(18)30212-1](https://doi.org/10.1016/S1875-5372%2818%2930212-1) X. Liu, Z. Niu, Y. Lu, Y. Guo, J. Han, Y. Chen, C. Wang, Rare Met. Mater. Eng., 47, 2919-26(2018).  
_assessment that models this phase_
- [doi:10.1361/15477030522473](https://doi.org/10.1361/15477030522473) Andreas Markström, Bo Sundman, Karin Frisk, A Revised Thermodynamic Description of the Co-W-C System, Journal of Phase Equilibria & Diffusion 26, 152-160 (2005).  
_assessment that models this phase_
- [doi:10.1515/ijmr-1985-760902](https://doi.org/10.1515/ijmr-1985-760902) A. Gabriel, H.L. Lukas, C.H. Allibert, I. Ansara, Z. Metallkd., 76, 589-95(1985).  
_assessment that models this phase_
- [doi:10.2320/matertrans.46.1199](https://doi.org/10.2320/matertrans.46.1199) Jun Sato, Katsunari Oikawa, Ryosuke Kainuma, Kiyohito Ishida, Experimental Verification of Magnetically Induced Phase Separation in αCo Phase and Thermodynamic Calculations of Phase Equilibria in the Co–W System, Mater. Trans. 46, 1199-1207 (2005).  
_assessment that models this phase_

## CO3W_D019 (Co–W)

- Id: `phase:co-w:co3w-d019`; status `assigned`
- Structure: Ni3Sn · D0_19 · hP8 · P6_3/mmc (194); type `st:d0-19-ni3sn-hp8`; tier A: standard phase name; confidence high
- Caveat: partitioned order/disorder model in CoW-17Wan.tdb also describes the disordered state
- Caveat: partitioned order/disorder model in CoW-18Cac.tdb also describes the disordered state
- Caveat: partitioned order/disorder model in CoW-19Wan.tdb also describes the disordered state
- Stability: stable in 9 of 9 calculated diagram(s): 300–1420 K, x(W) 0.15–0.2683
- Literature: 10 values (10 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:co-w:co3w-d019)

Names (11): _corpus: _corpus:phase:co-w:co3w-d019  
_paper: _paper:10.1016/j.calphad.2017.09.007:Co3W  
_tdb: _tdb:CoW-05Mar.tdb:CO3W_D019, tdb:CoW-05Sat.tdb:CO3W_D019, tdb:CoW-15Kap.tdb:CO3W_D019, tdb:CoW-17Wan.tdb:CO3W_D019, tdb:CoW-18Cac.tdb:CO3W_D019, tdb:CoW-18Liu.tdb:CO3W_D019, tdb:CoW-19Kap.tdb:CO3W_D019, tdb:CoW-19Wan.tdb:CO3W_D019, tdb:CoW-89Fer-LB.tdb:CO3W_D019  


### TDB models of CO3W_D019 (9): PHASE and CONSTITUENT statements as written

[CoW-05Mar.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-05Mar.tdb): CO3W_D019, type code %, sha256 `01a3c66282bd5b1d…`

~~~~text
43: PHASE CO3W_D019 % 2 3 1 !
44: CONST CO3W_D019 : CO : W : !
~~~~

[CoW-05Sat.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-05Sat.tdb): CO3W_D019, type code %, sha256 `1f1f9784293cea69…`

~~~~text
40: PHASE CO3W_D019 % 2 3 1 !
41: CONST CO3W_D019 : CO : W : !
~~~~

[CoW-15Kap.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-15Kap.tdb): CO3W_D019, type code %, sha256 `200261711d9333d5…`

~~~~text
41: PHASE CO3W_D019 % 2 3 1 !
42: CONST CO3W_D019 : CO : W : !
~~~~

[CoW-17Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-17Wan.tdb): CO3W_D019, type code %, sha256 `4b8a669596d303a4…`

~~~~text
50: PHASE CO3W_D019 % 2 3 1 !
51: CONST CO3W_D019 : CO% W : CO W% : !
~~~~

[CoW-18Cac.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-18Cac.tdb): CO3W_D019, type code %, sha256 `ea38c8c1cc7a87aa…`

~~~~text
42: PHASE CO3W_D019 % 2 3 1 !
43: CONST CO3W_D019 : CO% W : CO W% : !
~~~~

[CoW-18Liu.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-18Liu.tdb): CO3W_D019, type code %, sha256 `9597878804aaa859…`

~~~~text
42: PHASE CO3W_D019 % 2 3 1 !
43: CONST CO3W_D019 : CO : CO W% : !
~~~~

[CoW-19Kap.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-19Kap.tdb): CO3W_D019, type code %, sha256 `b705eaf27f721bc9…`

~~~~text
41: PHASE CO3W_D019 % 2 3 1 !
42: CONST CO3W_D019 : CO : W : !
~~~~

[CoW-19Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-19Wan.tdb): CO3W_D019, type code %, sha256 `9fc3705c1fb52800…`

~~~~text
53: PHASE CO3W_D019 % 2 3 1 !
54: CONST CO3W_D019 : CO% W : CO W% : !
~~~~

[CoW-89Fer-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-89Fer-LB.tdb): CO3W_D019, type code %, sha256 `2723d34dfa7f67d2…`

~~~~text
40: PHASE CO3W_D019 % 2 3 1 !
41: CONST CO3W_D019 : CO : W : !
~~~~

Example references (9 of 9; assessments first): 

- [doi:10.1016/j.calphad.2017.09.007](https://doi.org/10.1016/j.calphad.2017.09.007) Peisheng Wang, Wei Xiong, Ursula R. Kattner, Carelyn E. Campbell, Eric A. Lass, Oleg Y. Kontsevoi et al., Thermodynamic re-assessment of the Al-Co-W system, Calphad 59, 112-130 (2017).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1007/BF02651660](https://doi.org/10.1007/BF02651660) A. Fernandez Guillermet, Metall. Trans. A, 20A, 935-56(1989).  
_assessment that models this phase_
- [doi:10.1007/s10853-019-03616-3](https://doi.org/10.1007/s10853-019-03616-3) Peisheng Wang, Oleg Y. Kontsevoi, Gregory B. Olson, Thermodynamic analysis of the Co–W system, J Mater Sci 54, 10261-10269 (2019).  
_assessment that models this phase_
- [doi:10.1016/j.calphad.2015.04.012](https://doi.org/10.1016/j.calphad.2015.04.012) B. Kaplan, A. Blomqvist, M. Selleby, S. Norgren, Calphad, 50, 59-67(2015).  
_assessment that models this phase_
- [doi:10.1016/j.calphad.2019.05.003](https://doi.org/10.1016/j.calphad.2019.05.003) B. Kaplan, Calphad, 66, 101626(2019).  
_assessment that models this phase_
- [doi:10.1016/j.jallcom.2017.09.327](https://doi.org/10.1016/j.jallcom.2017.09.327) G. Cacciamani, G. Roncallo, Y. Wang, E. Vacchieri, A. Costa, J. Alloys Compd., 730, 291-310(2018).  
_assessment that models this phase_
- [doi:10.1016/S1875-5372(18)30212-1](https://doi.org/10.1016/S1875-5372%2818%2930212-1) X. Liu, Z. Niu, Y. Lu, Y. Guo, J. Han, Y. Chen, C. Wang, Rare Met. Mater. Eng., 47, 2919-26(2018).  
_assessment that models this phase_
- [doi:10.1361/15477030522473](https://doi.org/10.1361/15477030522473) Andreas Markström, Bo Sundman, Karin Frisk, A Revised Thermodynamic Description of the Co-W-C System, Journal of Phase Equilibria & Diffusion 26, 152-160 (2005).  
_assessment that models this phase_
- [doi:10.2320/matertrans.46.1199](https://doi.org/10.2320/matertrans.46.1199) Jun Sato, Katsunari Oikawa, Ryosuke Kainuma, Kiyohito Ishida, Experimental Verification of Magnetically Induced Phase Separation in αCo Phase and Thermodynamic Calculations of Phase Equilibria in the Co–W System, Mater. Trans. 46, 1199-1207 (2005).  
_assessment that models this phase_

## CO7W6_D85 (Co–W)

- Id: `phase:co-w:co7w6-d85`; status `assigned`
- Structure: Fe7W6 · D8_5 · hR13 · R-3m (166); type `st:d8-5-fe7w6-hr13`; tier A: standard phase name; confidence high
- Stoichiometry: Co 0.5385, W 0.4615
- Stability: stable in 1 of 1 calculated diagram(s): 300–1986.19 K, x(W) 0.46154–0.46154
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:co-w:co7w6-d85)

Names (2): _corpus: _corpus:phase:co-w:co7w6-d85  
_tdb: _tdb:CoW-85Gab.tdb:CO7W6_D85  


### TDB models of CO7W6_D85 (1): PHASE and CONSTITUENT statements as written

[CoW-85Gab.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-85Gab.tdb): CO7W6_D85, type code %, sha256 `e50d980889fc6e3e…`

~~~~text
47: PHASE CO7W6_D85 % 2 7 6 !
48: CONST CO7W6_D85 : CO : W : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1515/ijmr-1985-760902](https://doi.org/10.1515/ijmr-1985-760902) A. Gabriel, H.L. Lukas, C.H. Allibert, I. Ansara, Z. Metallkd., 76, 589-95(1985).  
_assessment that models this phase_

## MU_D85 (Co–W)

- Id: `phase:co-w:d85-mu`; status `assigned`
- Structure: Fe7W6 · D8_5 · hR13 · R-3m (166); type `st:d8-5-fe7w6-hr13`; tier A: standard phase name; confidence high
- Caveat: partitioned order/disorder model in CoW-05Sat.tdb also describes the disordered state
- Caveat: partitioned order/disorder model in CoW-17Wan.tdb also describes the disordered state
- Caveat: partitioned order/disorder model in CoW-18Cac.tdb also describes the disordered state
- Caveat: partitioned order/disorder model in CoW-19Wan.tdb also describes the disordered state
- Stability: stable in 9 of 9 calculated diagram(s): 300–2021.78 K, x(W) 0.41701–0.49493
- Literature: 20 values (20 accepted) from 2 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:co-w:d85-mu)

Names (13): _corpus: _corpus:phase:co-w:d85-mu, corpus:phase:co-w:mu-d85  
_paper: _paper:10.1016/j.calphad.2017.09.007:µ, paper:10.2320/matertrans.46.1199:μ  
_tdb: _tdb:CoW-05Mar.tdb:MU_D85, tdb:CoW-05Sat.tdb:MU_D85, tdb:CoW-15Kap.tdb:MU_D85, tdb:CoW-17Wan.tdb:MU_D85, tdb:CoW-18Cac.tdb:MU_D85, tdb:CoW-18Liu.tdb:MU_D85, tdb:CoW-19Kap.tdb:MU_D85, tdb:CoW-19Wan.tdb:MU_D85, tdb:CoW-89Fer-LB.tdb:MU_D85  


### TDB models of MU_D85 (9): PHASE and CONSTITUENT statements as written

[CoW-05Mar.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-05Mar.tdb): MU_D85, type code %, sha256 `01a3c66282bd5b1d…`

~~~~text
48: PHASE MU_D85 % 3 7 2 4 !
49: CONST MU_D85 : CO : W : CO W : !
~~~~

[CoW-05Sat.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-05Sat.tdb): MU_D85, type code %, sha256 `1f1f9784293cea69…`

~~~~text
45: PHASE MU_D85 % 3 7 2 4 !
46: CONST MU_D85 : CO W : W : CO W : !
~~~~

[CoW-15Kap.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-15Kap.tdb): MU_D85, type code %, sha256 `200261711d9333d5…`

~~~~text
46: PHASE MU_D85 % 3 7 2 4 !
47: CONST MU_D85 : CO : W : CO W : !
~~~~

[CoW-17Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-17Wan.tdb): MU_D85, type code %, sha256 `4b8a669596d303a4…`

~~~~text
55: PHASE MU_D85 % 4 1 4 2 6 !
56: CONST MU_D85 : CO W : CO W : CO W : CO W : !
~~~~

[CoW-18Cac.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-18Cac.tdb): MU_D85, type code %, sha256 `ea38c8c1cc7a87aa…`

~~~~text
47: PHASE MU_D85 % 4 1 4 2 6 !
48: CONST MU_D85 : CO W : CO W : CO W : CO W : !
~~~~

[CoW-18Liu.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-18Liu.tdb): MU_D85, type code %, sha256 `9597878804aaa859…`

~~~~text
47: PHASE MU_D85 % 3 7 2 4 !
48: CONST MU_D85 : CO : W : CO W : !
~~~~

[CoW-19Kap.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-19Kap.tdb): MU_D85, type code %, sha256 `b705eaf27f721bc9…`

~~~~text
46: PHASE MU_D85 % 3 7 2 4 !
47: CONST MU_D85 : CO : W : CO W : !
~~~~

[CoW-19Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-19Wan.tdb): MU_D85, type code %AP, sha256 `9fc3705c1fb52800…`

~~~~text
63: PHASE MU_D85 %AP 4 1 4 2 6 !
64: CONST MU_D85 : CO W : CO W : CO W : CO W : !
~~~~

[CoW-89Fer-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-89Fer-LB.tdb): MU_D85, type code %, sha256 `2723d34dfa7f67d2…`

~~~~text
45: PHASE MU_D85 % 3 7 2 4 !
46: CONST MU_D85 : CO : W : CO W : !
~~~~

Example references (9 of 9; assessments first): 

- [doi:10.1016/j.calphad.2017.09.007](https://doi.org/10.1016/j.calphad.2017.09.007) Peisheng Wang, Wei Xiong, Ursula R. Kattner, Carelyn E. Campbell, Eric A. Lass, Oleg Y. Kontsevoi et al., Thermodynamic re-assessment of the Al-Co-W system, Calphad 59, 112-130 (2017).  
_assessment that models this phase; reports values for this phase_
- [doi:10.2320/matertrans.46.1199](https://doi.org/10.2320/matertrans.46.1199) Jun Sato, Katsunari Oikawa, Ryosuke Kainuma, Kiyohito Ishida, Experimental Verification of Magnetically Induced Phase Separation in αCo Phase and Thermodynamic Calculations of Phase Equilibria in the Co–W System, Mater. Trans. 46, 1199-1207 (2005).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1007/BF02651660](https://doi.org/10.1007/BF02651660) A. Fernandez Guillermet, Metall. Trans. A, 20A, 935-56(1989).  
_assessment that models this phase_
- [doi:10.1007/s10853-019-03616-3](https://doi.org/10.1007/s10853-019-03616-3) Peisheng Wang, Oleg Y. Kontsevoi, Gregory B. Olson, Thermodynamic analysis of the Co–W system, J Mater Sci 54, 10261-10269 (2019).  
_assessment that models this phase_
- [doi:10.1016/j.calphad.2015.04.012](https://doi.org/10.1016/j.calphad.2015.04.012) B. Kaplan, A. Blomqvist, M. Selleby, S. Norgren, Calphad, 50, 59-67(2015).  
_assessment that models this phase_
- [doi:10.1016/j.calphad.2019.05.003](https://doi.org/10.1016/j.calphad.2019.05.003) B. Kaplan, Calphad, 66, 101626(2019).  
_assessment that models this phase_
- [doi:10.1016/j.jallcom.2017.09.327](https://doi.org/10.1016/j.jallcom.2017.09.327) G. Cacciamani, G. Roncallo, Y. Wang, E. Vacchieri, A. Costa, J. Alloys Compd., 730, 291-310(2018).  
_assessment that models this phase_
- [doi:10.1016/S1875-5372(18)30212-1](https://doi.org/10.1016/S1875-5372%2818%2930212-1) X. Liu, Z. Niu, Y. Lu, Y. Guo, J. Han, Y. Chen, C. Wang, Rare Met. Mater. Eng., 47, 2919-26(2018).  
_assessment that models this phase_
- [doi:10.1361/15477030522473](https://doi.org/10.1361/15477030522473) Andreas Markström, Bo Sundman, Karin Frisk, A Revised Thermodynamic Description of the Co-W-C System, Journal of Phase Equilibria & Diffusion 26, 152-160 (2005).  
_assessment that models this phase_

## DIS_MU (Co–W)

- Id: `phase:co-w:dis-mu`; status `needs_review`
- No structure assigned. Why: unrecognised_name_tokens:DIS
- Candidate (name_token): Fe7W6 · D8_5 · hR13 · R-3m (166) — Strukturbericht/word 'D85' in the TDB name
- Stability: not stable in 1 calculated diagram(s)
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:co-w:dis-mu)

Names (2): _corpus: _corpus:phase:co-w:dis-mu  
_tdb: _tdb:CoW-19Wan.tdb:DIS_MU  


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

[CoW-19Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-19Wan.tdb): DIS_MU, type code %A, sha256 `9fc3705c1fb52800…`

~~~~text
58: PHASE DIS_MU %A 1 1 !
59: CONST DIS_MU : CO W : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1007/s10853-019-03616-3](https://doi.org/10.1007/s10853-019-03616-3) Peisheng Wang, Oleg Y. Kontsevoi, Gregory B. Olson, Thermodynamic analysis of the Co–W system, J Mater Sci 54, 10261-10269 (2019).  
_assessment that models this phase_

## FCC_4SL (Co–W)

- Id: `phase:co-w:fcc-4sl`; status `needs_review`
- No structure assigned. Why: order_disorder_ambiguity:CoW-19Wan.tdb_model_is_partitioned; unrecognised_name_tokens:4SL
- Candidate (name_token): Cu · A1 · cF4 · Fm-3m (225) — Strukturbericht/word 'A1' in the TDB name
- Candidate (tdb_comment): AuCu3 · cP4 · Pm-3m, L1_2 — CoW-19Wan.tdb: 'Prototype AuCu3 (cP4, Pm-3m, L1_2) and AuCu (tP4, P4/mmm, L1_0)'
- Stability: stable in 1 of 1 calculated diagram(s): 694.23–1780.6 K, x(W) 0–0.17103
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:co-w:fcc-4sl)

Names (2): _corpus: _corpus:phase:co-w:fcc-4sl  
_tdb: _tdb:CoW-19Wan.tdb:FCC_4SL  


### TDB models of FCC_4SL (1): PHASE and CONSTITUENT statements as written

[CoW-19Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-19Wan.tdb): FCC_4SL, type code %AY, sha256 `9fc3705c1fb52800…`

~~~~text
38: PHASE FCC_4SL:F %AY 5 0.25 0.25 0.25 0.25 1 !
39: CONST FCC_4SL:F : CO W : CO W : CO W : CO W : VA : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1007/s10853-019-03616-3](https://doi.org/10.1007/s10853-019-03616-3) Peisheng Wang, Oleg Y. Kontsevoi, Gregory B. Olson, Thermodynamic analysis of the Co–W system, J Mater Sci 54, 10261-10269 (2019).  
_assessment that models this phase_

## FCC_A1 (Co–W)

- Id: `phase:co-w: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 10 of 10 calculated diagram(s): 693.26–1782.48 K, x(W) 0–0.17859
- Literature: 30 values (30 accepted) from 2 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:co-w:fcc-a1)

Names (15): _corpus: _corpus:phase:co-w:fcc-a1  
_paper: _paper:10.1007/bf02651660:fcc, paper:10.1016/j.calphad.2017.09.007:(αCo), paper:10.1016/j.calphad.2017.09.007:(αCo)fm  
_tdb: _tdb:CoW-05Mar.tdb:FCC_A1, tdb:CoW-05Sat.tdb:FCC_A1, tdb:CoW-15Kap.tdb:FCC_A1, tdb:CoW-17Wan.tdb:FCC_A1, tdb:CoW-18Cac.tdb:FCC_A1, tdb:CoW-18Liu.tdb:FCC_A1, tdb:CoW-19Kap.tdb:FCC_A1, tdb:CoW-19Wan.tdb:A1_FCC, tdb:CoW-19Wan.tdb:FCC_A1, tdb:CoW-85Gab.tdb:FCC_A1, tdb:CoW-89Fer-LB.tdb:FCC_A1  


### TDB models of FCC_A1 (11): PHASE and CONSTITUENT statements as written

[CoW-05Mar.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-05Mar.tdb): FCC_A1, type code %A, sha256 `01a3c66282bd5b1d…`

~~~~text
28: PHASE FCC_A1 %A 2 1 1 !
29: CONST FCC_A1 : CO% W : VA : !
~~~~

[CoW-05Sat.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-05Sat.tdb): FCC_A1, type code %A, sha256 `1f1f9784293cea69…`

~~~~text
25: PHASE FCC_A1 %A 2 1 1 !
26: CONST FCC_A1 : CO% W : VA : !
~~~~

[CoW-15Kap.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-15Kap.tdb): FCC_A1, type code %A, sha256 `200261711d9333d5…`

~~~~text
26: PHASE FCC_A1 %A 2 1 1 !
27: CONST FCC_A1 : CO% W : VA : !
~~~~

[CoW-17Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-17Wan.tdb): FCC_A1, type code %A, sha256 `4b8a669596d303a4…`

~~~~text
35: PHASE FCC_A1 %A 2 1 1 !
36: CONST FCC_A1 : CO% W : VA : !
~~~~

[CoW-18Cac.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-18Cac.tdb): FCC_A1, type code %A, sha256 `ea38c8c1cc7a87aa…`

~~~~text
27: PHASE FCC_A1 %A 2 1 1 !
28: CONST FCC_A1 : CO% W : VA : !
~~~~

[CoW-18Liu.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-18Liu.tdb): FCC_A1, type code %A, sha256 `9597878804aaa859…`

~~~~text
27: PHASE FCC_A1 %A 2 1 1 !
28: CONST FCC_A1 : CO% W : VA : !
~~~~

[CoW-19Kap.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-19Kap.tdb): FCC_A1, type code %A, sha256 `b705eaf27f721bc9…`

~~~~text
26: PHASE FCC_A1 %A 2 1 1 !
27: CONST FCC_A1 : CO% W : VA : !
~~~~

[CoW-19Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-19Wan.tdb): A1_FCC, type code %A, sha256 `9fc3705c1fb52800…`

~~~~text
33: PHASE A1_FCC %A 2 1 1 !
34: CONST A1_FCC : CO% W : VA : !
~~~~

[CoW-19Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-19Wan.tdb): FCC_A1, type code %A, sha256 `9fc3705c1fb52800…`

~~~~text
28: PHASE FCC_A1 %A 2 1 1 !
29: CONST FCC_A1 : CO% W : VA : !
~~~~

[CoW-85Gab.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-85Gab.tdb): FCC_A1, type code %A, sha256 `e50d980889fc6e3e…`

~~~~text
32: PHASE FCC_A1 %A 2 1 1 !
33: CONST FCC_A1 : CO% W : VA : !
~~~~

[CoW-89Fer-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-89Fer-LB.tdb): FCC_A1, type code %A, sha256 `2723d34dfa7f67d2…`

~~~~text
25: PHASE FCC_A1 %A 2 1 1 !
26: CONST FCC_A1 : CO% W : VA : !
~~~~

Example references (10 of 11; assessments first): 

- [doi:10.1016/j.calphad.2017.09.007](https://doi.org/10.1016/j.calphad.2017.09.007) Peisheng Wang, Wei Xiong, Ursula R. Kattner, Carelyn E. Campbell, Eric A. Lass, Oleg Y. Kontsevoi et al., Thermodynamic re-assessment of the Al-Co-W system, Calphad 59, 112-130 (2017).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1007/BF02651660](https://doi.org/10.1007/BF02651660) A. Fernandez Guillermet, Metall. Trans. A, 20A, 935-56(1989).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1007/s10853-019-03616-3](https://doi.org/10.1007/s10853-019-03616-3) Peisheng Wang, Oleg Y. Kontsevoi, Gregory B. Olson, Thermodynamic analysis of the Co–W system, J Mater Sci 54, 10261-10269 (2019).  
_assessment that models this phase_
- [doi:10.1016/j.calphad.2015.04.012](https://doi.org/10.1016/j.calphad.2015.04.012) B. Kaplan, A. Blomqvist, M. Selleby, S. Norgren, Calphad, 50, 59-67(2015).  
_assessment that models this phase_
- [doi:10.1016/j.calphad.2019.05.003](https://doi.org/10.1016/j.calphad.2019.05.003) B. Kaplan, Calphad, 66, 101626(2019).  
_assessment that models this phase_
- [doi:10.1016/j.jallcom.2017.09.327](https://doi.org/10.1016/j.jallcom.2017.09.327) G. Cacciamani, G. Roncallo, Y. Wang, E. Vacchieri, A. Costa, J. Alloys Compd., 730, 291-310(2018).  
_assessment that models this phase_
- [doi:10.1016/S1875-5372(18)30212-1](https://doi.org/10.1016/S1875-5372%2818%2930212-1) X. Liu, Z. Niu, Y. Lu, Y. Guo, J. Han, Y. Chen, C. Wang, Rare Met. Mater. Eng., 47, 2919-26(2018).  
_assessment that models this phase_
- [doi:10.1361/15477030522473](https://doi.org/10.1361/15477030522473) Andreas Markström, Bo Sundman, Karin Frisk, A Revised Thermodynamic Description of the Co-W-C System, Journal of Phase Equilibria & Diffusion 26, 152-160 (2005).  
_assessment that models this phase_
- [doi:10.1515/ijmr-1985-760902](https://doi.org/10.1515/ijmr-1985-760902) A. Gabriel, H.L. Lukas, C.H. Allibert, I. Ansara, Z. Metallkd., 76, 589-95(1985).  
_assessment that models this phase_
- [doi:10.2320/matertrans.46.1199](https://doi.org/10.2320/matertrans.46.1199) Jun Sato, Katsunari Oikawa, Ryosuke Kainuma, Kiyohito Ishida, Experimental Verification of Magnetically Induced Phase Separation in αCo Phase and Thermodynamic Calculations of Phase Equilibria in the Co–W System, Mater. Trans. 46, 1199-1207 (2005).  
_assessment that models this phase_

## HCP_A3 (Co–W)

- Id: `phase:co-w: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 10 of 10 calculated diagram(s): 300–718.77 K, x(W) 0–0.0184
- Literature: 3 values (3 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:co-w:hcp-a3)

Names (12): _corpus: _corpus:phase:co-w:hcp-a3  
_paper: _paper:10.1016/j.calphad.2017.09.007:(εCo)  
_tdb: _tdb:CoW-05Mar.tdb:HCP_A3, tdb:CoW-05Sat.tdb:HCP_A3, tdb:CoW-15Kap.tdb:HCP_A3, tdb:CoW-17Wan.tdb:HCP_A3, tdb:CoW-18Cac.tdb:HCP_A3, tdb:CoW-18Liu.tdb:HCP_A3, tdb:CoW-19Kap.tdb:HCP_A3, tdb:CoW-19Wan.tdb:HCP_A3, tdb:CoW-85Gab.tdb:HCP_A3, tdb:CoW-89Fer-LB.tdb:HCP_A3  


### TDB models of HCP_A3 (10): PHASE and CONSTITUENT statements as written

[CoW-05Mar.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-05Mar.tdb): HCP_A3, type code %A, sha256 `01a3c66282bd5b1d…`

~~~~text
38: PHASE HCP_A3 %A 2 1 0.5 !
39: CONST HCP_A3 : CO% W : VA : !
~~~~

[CoW-05Sat.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-05Sat.tdb): HCP_A3, type code %A, sha256 `1f1f9784293cea69…`

~~~~text
35: PHASE HCP_A3 %A 2 1 0.5 !
36: CONST HCP_A3 : CO% W : VA : !
~~~~

[CoW-15Kap.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-15Kap.tdb): HCP_A3, type code %A, sha256 `200261711d9333d5…`

~~~~text
36: PHASE HCP_A3 %A 2 1 0.5 !
37: CONST HCP_A3 : CO% W : VA : !
~~~~

[CoW-17Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-17Wan.tdb): HCP_A3, type code %A, sha256 `4b8a669596d303a4…`

~~~~text
45: PHASE HCP_A3 %A 2 1 0.5 !
46: CONST HCP_A3 : CO% W : VA : !
~~~~

[CoW-18Cac.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-18Cac.tdb): HCP_A3, type code %A, sha256 `ea38c8c1cc7a87aa…`

~~~~text
37: PHASE HCP_A3 %A 2 1 0.5 !
38: CONST HCP_A3 : CO% W : VA : !
~~~~

[CoW-18Liu.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-18Liu.tdb): HCP_A3, type code %A, sha256 `9597878804aaa859…`

~~~~text
37: PHASE HCP_A3 %A 2 1 0.5 !
38: CONST HCP_A3 : CO% W : VA : !
~~~~

[CoW-19Kap.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-19Kap.tdb): HCP_A3, type code %A, sha256 `b705eaf27f721bc9…`

~~~~text
36: PHASE HCP_A3 %A 2 1 0.5 !
37: CONST HCP_A3 : CO% W : VA : !
~~~~

[CoW-19Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-19Wan.tdb): HCP_A3, type code %A, sha256 `9fc3705c1fb52800…`

~~~~text
48: PHASE HCP_A3 %A 2 1 0.5 !
49: CONST HCP_A3 : CO% W : VA : !
~~~~

[CoW-85Gab.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-85Gab.tdb): HCP_A3, type code %A, sha256 `e50d980889fc6e3e…`

~~~~text
42: PHASE HCP_A3 %A 2 1 0.5 !
43: CONST HCP_A3 : CO% W : VA : !
~~~~

[CoW-89Fer-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-89Fer-LB.tdb): HCP_A3, type code %A, sha256 `2723d34dfa7f67d2…`

~~~~text
35: PHASE HCP_A3 %A 2 1 0.5 !
36: CONST HCP_A3 : CO% W : VA : !
~~~~

Example references (10 of 10; assessments first): 

- [doi:10.1016/j.calphad.2017.09.007](https://doi.org/10.1016/j.calphad.2017.09.007) Peisheng Wang, Wei Xiong, Ursula R. Kattner, Carelyn E. Campbell, Eric A. Lass, Oleg Y. Kontsevoi et al., Thermodynamic re-assessment of the Al-Co-W system, Calphad 59, 112-130 (2017).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1007/BF02651660](https://doi.org/10.1007/BF02651660) A. Fernandez Guillermet, Metall. Trans. A, 20A, 935-56(1989).  
_assessment that models this phase_
- [doi:10.1007/s10853-019-03616-3](https://doi.org/10.1007/s10853-019-03616-3) Peisheng Wang, Oleg Y. Kontsevoi, Gregory B. Olson, Thermodynamic analysis of the Co–W system, J Mater Sci 54, 10261-10269 (2019).  
_assessment that models this phase_
- [doi:10.1016/j.calphad.2015.04.012](https://doi.org/10.1016/j.calphad.2015.04.012) B. Kaplan, A. Blomqvist, M. Selleby, S. Norgren, Calphad, 50, 59-67(2015).  
_assessment that models this phase_
- [doi:10.1016/j.calphad.2019.05.003](https://doi.org/10.1016/j.calphad.2019.05.003) B. Kaplan, Calphad, 66, 101626(2019).  
_assessment that models this phase_
- [doi:10.1016/j.jallcom.2017.09.327](https://doi.org/10.1016/j.jallcom.2017.09.327) G. Cacciamani, G. Roncallo, Y. Wang, E. Vacchieri, A. Costa, J. Alloys Compd., 730, 291-310(2018).  
_assessment that models this phase_
- [doi:10.1016/S1875-5372(18)30212-1](https://doi.org/10.1016/S1875-5372%2818%2930212-1) X. Liu, Z. Niu, Y. Lu, Y. Guo, J. Han, Y. Chen, C. Wang, Rare Met. Mater. Eng., 47, 2919-26(2018).  
_assessment that models this phase_
- [doi:10.1361/15477030522473](https://doi.org/10.1361/15477030522473) Andreas Markström, Bo Sundman, Karin Frisk, A Revised Thermodynamic Description of the Co-W-C System, Journal of Phase Equilibria & Diffusion 26, 152-160 (2005).  
_assessment that models this phase_
- [doi:10.1515/ijmr-1985-760902](https://doi.org/10.1515/ijmr-1985-760902) A. Gabriel, H.L. Lukas, C.H. Allibert, I. Ansara, Z. Metallkd., 76, 589-95(1985).  
_assessment that models this phase_
- [doi:10.2320/matertrans.46.1199](https://doi.org/10.2320/matertrans.46.1199) Jun Sato, Katsunari Oikawa, Ryosuke Kainuma, Kiyohito Ishida, Experimental Verification of Magnetically Induced Phase Separation in αCo Phase and Thermodynamic Calculations of Phase Equilibria in the Co–W System, Mater. Trans. 46, 1199-1207 (2005).  
_assessment that models this phase_

## LIQUID (Co–W)

- Id: `phase:co-w:liquid`; status `assigned`
- Structure: liquid; type `st:liquid`; liquid; confidence high
- Stability: stable in 10 of 10 calculated diagram(s): 1679.34–4000 K, x(W) 0–1
- Literature: 12 values (12 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:co-w:liquid)

Names (12): _corpus: _corpus:phase:co-w:liquid  
_paper: _paper:10.1016/j.calphad.2017.09.007:Liq  
_tdb: _tdb:CoW-05Mar.tdb:LIQUID, tdb:CoW-05Sat.tdb:LIQUID, tdb:CoW-15Kap.tdb:LIQUID, tdb:CoW-17Wan.tdb:LIQUID, tdb:CoW-18Cac.tdb:LIQUID, tdb:CoW-18Liu.tdb:LIQUID, tdb:CoW-19Kap.tdb:LIQUID, tdb:CoW-19Wan.tdb:LIQUID, tdb:CoW-85Gab.tdb:LIQUID, tdb:CoW-89Fer-LB.tdb:LIQUID  


### TDB models of LIQUID (10): PHASE and CONSTITUENT statements as written

[CoW-05Mar.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-05Mar.tdb): LIQUID, type code %, sha256 `01a3c66282bd5b1d…`

~~~~text
23: PHASE LIQUID:L % 1 1 !
24: CONST LIQUID:L : CO W : !
~~~~

[CoW-05Sat.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-05Sat.tdb): LIQUID, type code %, sha256 `1f1f9784293cea69…`

~~~~text
20: PHASE LIQUID:L % 1 1 !
21: CONST LIQUID:L : CO W : !
~~~~

[CoW-15Kap.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-15Kap.tdb): LIQUID, type code %, sha256 `200261711d9333d5…`

~~~~text
21: PHASE LIQUID:L % 1 1 !
22: CONST LIQUID:L : CO W : !
~~~~

[CoW-17Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-17Wan.tdb): LIQUID, type code %, sha256 `4b8a669596d303a4…`

~~~~text
30: PHASE LIQUID:L % 1 1 !
31: CONST LIQUID:L : CO W : !
~~~~

[CoW-18Cac.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-18Cac.tdb): LIQUID, type code %, sha256 `ea38c8c1cc7a87aa…`

~~~~text
22: PHASE LIQUID:L % 1 1 !
23: CONST LIQUID:L : CO W : !
~~~~

[CoW-18Liu.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-18Liu.tdb): LIQUID, type code %, sha256 `9597878804aaa859…`

~~~~text
22: PHASE LIQUID:L % 1 1 !
23: CONST LIQUID:L : CO W : !
~~~~

[CoW-19Kap.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-19Kap.tdb): LIQUID, type code %, sha256 `b705eaf27f721bc9…`

~~~~text
21: PHASE LIQUID:L % 1 1 !
22: CONST LIQUID:L : CO W : !
~~~~

[CoW-19Wan.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-19Wan.tdb): LIQUID, type code %, sha256 `9fc3705c1fb52800…`

~~~~text
23: PHASE LIQUID:L % 1 1 !
24: CONST LIQUID:L : CO W : !
~~~~

[CoW-85Gab.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-85Gab.tdb): LIQUID, type code %, sha256 `e50d980889fc6e3e…`

~~~~text
27: PHASE LIQUID:L % 1 1 !
28: CONST LIQUID:L : CO W : !
~~~~

[CoW-89Fer-LB.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-89Fer-LB.tdb): LIQUID, type code %, sha256 `2723d34dfa7f67d2…`

~~~~text
20: PHASE LIQUID:L % 1 1 !
21: CONST LIQUID:L : CO W : !
~~~~

Example references (10 of 10; assessments first): 

- [doi:10.1016/j.calphad.2017.09.007](https://doi.org/10.1016/j.calphad.2017.09.007) Peisheng Wang, Wei Xiong, Ursula R. Kattner, Carelyn E. Campbell, Eric A. Lass, Oleg Y. Kontsevoi et al., Thermodynamic re-assessment of the Al-Co-W system, Calphad 59, 112-130 (2017).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1007/BF02651660](https://doi.org/10.1007/BF02651660) A. Fernandez Guillermet, Metall. Trans. A, 20A, 935-56(1989).  
_assessment that models this phase_
- [doi:10.1007/s10853-019-03616-3](https://doi.org/10.1007/s10853-019-03616-3) Peisheng Wang, Oleg Y. Kontsevoi, Gregory B. Olson, Thermodynamic analysis of the Co–W system, J Mater Sci 54, 10261-10269 (2019).  
_assessment that models this phase_
- [doi:10.1016/j.calphad.2015.04.012](https://doi.org/10.1016/j.calphad.2015.04.012) B. Kaplan, A. Blomqvist, M. Selleby, S. Norgren, Calphad, 50, 59-67(2015).  
_assessment that models this phase_
- [doi:10.1016/j.calphad.2019.05.003](https://doi.org/10.1016/j.calphad.2019.05.003) B. Kaplan, Calphad, 66, 101626(2019).  
_assessment that models this phase_
- [doi:10.1016/j.jallcom.2017.09.327](https://doi.org/10.1016/j.jallcom.2017.09.327) G. Cacciamani, G. Roncallo, Y. Wang, E. Vacchieri, A. Costa, J. Alloys Compd., 730, 291-310(2018).  
_assessment that models this phase_
- [doi:10.1016/S1875-5372(18)30212-1](https://doi.org/10.1016/S1875-5372%2818%2930212-1) X. Liu, Z. Niu, Y. Lu, Y. Guo, J. Han, Y. Chen, C. Wang, Rare Met. Mater. Eng., 47, 2919-26(2018).  
_assessment that models this phase_
- [doi:10.1361/15477030522473](https://doi.org/10.1361/15477030522473) Andreas Markström, Bo Sundman, Karin Frisk, A Revised Thermodynamic Description of the Co-W-C System, Journal of Phase Equilibria & Diffusion 26, 152-160 (2005).  
_assessment that models this phase_
- [doi:10.1515/ijmr-1985-760902](https://doi.org/10.1515/ijmr-1985-760902) A. Gabriel, H.L. Lukas, C.H. Allibert, I. Ansara, Z. Metallkd., 76, 589-95(1985).  
_assessment that models this phase_
- [doi:10.2320/matertrans.46.1199](https://doi.org/10.2320/matertrans.46.1199) Jun Sato, Katsunari Oikawa, Ryosuke Kainuma, Kiyohito Ishida, Experimental Verification of Magnetically Induced Phase Separation in αCo Phase and Thermodynamic Calculations of Phase Equilibria in the Co–W System, Mater. Trans. 46, 1199-1207 (2005).  
_assessment that models this phase_

## R_PHASE (Co–W)

- Id: `phase:co-w:phase-r`; status `assigned`
- Structure: R-(Co,Cr,Mo) · hR53 · R-3 (148); type `st:r-co-cr-mo-hr53`; 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:R, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
- Stability: stable in 2 of 2 calculated diagram(s): 300–579.59 K, x(W) 0.48262–0.49034
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:co-w:phase-r)

Names (3): _corpus: _corpus:phase:co-w:phase-r  
_tdb: _tdb:CoW-15Kap.tdb:R_PHASE, tdb:CoW-18Cac.tdb:R_PHASE  


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

[CoW-15Kap.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-15Kap.tdb): R_PHASE, type code %, sha256 `200261711d9333d5…`

~~~~text
51: PHASE R_PHASE % 3 27 8 18 !
52: CONST R_PHASE : CO : W : CO W : !
~~~~

[CoW-18Cac.tdb](https://orchid-project.org/data/databases/sgte-binary/CoW-18Cac.tdb): R_PHASE, type code %, sha256 `ea38c8c1cc7a87aa…`

~~~~text
52: PHASE R_PHASE % 3 27 8 18 !
53: CONST R_PHASE : CO : W : CO W : !
~~~~

Example references (2 of 2; assessments first): 

- [doi:10.1016/j.calphad.2015.04.012](https://doi.org/10.1016/j.calphad.2015.04.012) B. Kaplan, A. Blomqvist, M. Selleby, S. Norgren, Calphad, 50, 59-67(2015).  
_assessment that models this phase_
- [doi:10.1016/j.jallcom.2017.09.327](https://doi.org/10.1016/j.jallcom.2017.09.327) G. Cacciamani, G. Roncallo, Y. Wang, E. Vacchieri, A. Costa, J. Alloys Compd., 730, 291-310(2018).  
_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).