# Dy–Si phases

> Dy–Si system: 13 phases (tier A 7, tier C 3, liquid 1, needs_review 2); 12 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/DY-SI.html · Markdown: https://data.orchid-project.org/phases/pages/DY-SI.md

13 phases (tier A 7, tier C 3, liquid 1, needs_review 2); 12 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=DY-SI) · [full JSON](https://data.orchid-project.org/phases/systems/DY-SI.json) · [Dy–Si system page](https://data.orchid-project.org/systems/DY-SI.html) · [Markdown](https://data.orchid-project.org/phases/pages/DY-SI.md) · [field reference](https://data.orchid-project.org/phases/SCHEMA.md)

Table: Phases of the Dy–Si system (13)

| Phase | Structure | Basis | Stability (calculated) | Literature values | TDB models |
|---|---|---|---|---:|---:|
| [DIAMOND_A4](#phase-dy-si-a4-diamond); _phase:dy-si:a4-diamond_ | C (diamond) · A4 · cF8 · Fd-3m (227) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–1687 K, x(Si) 1–1 | 0 | 1 |
| [BCC_A2](#phase-dy-si-bcc-a2); _phase:dy-si:bcc-a2_ | W · A2 · cI2 · Im-3m (229) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 1654.15–1680 K, x(Si) 0–0 | 0 | 1 |
| [DY3SI4](#phase-dy-si-dy3si4); _phase:dy-si:dy3si4_ | Ho3Si4 · oC24 · Cmcm (63) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 1 of 1 calculated diagram(s): 300–1623.02 K, x(Si) 0.57143–0.57143 | 0 | 1 |
| [DY3SI5_BETA](#phase-dy-si-dy3si5-beta); _phase:dy-si:dy3si5-beta_ |  | needs_review | stable in 1 of 1 calculated diagram(s): 1032.97–1903.47 K, x(Si) 0.625–0.625 | 0 | 1 |
| [DY3SI5_C32](#phase-dy-si-dy3si5-c32); _phase:dy-si:dy3si5-c32_ |  | needs_review | stable in 1 of 1 calculated diagram(s): 300–1032.97 K, x(Si) 0.625–0.625 | 0 | 1 |
| [DY5SI3_D88](#phase-dy-si-dy5si3-d88); _phase:dy-si:dy5si3-d88_ | Mn5Si3 · D8_8 · hP16 · P6_3/mcm (193) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–2144.22 K, x(Si) 0.375–0.375 | 0 | 1 |
| [DY5SI4](#phase-dy-si-dy5si4); _phase:dy-si:dy5si4_ | Gd5Si4 · oP36 · Pnma (62) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 1 of 1 calculated diagram(s): 300–2100.87 K, x(Si) 0.44444–0.44444 | 0 | 1 |
| [DYSI_B33](#phase-dy-si-dysi-b33); _phase:dy-si:dysi-b33_ | CrB · B33 · oC8 · Cmcm (63) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–2150.72 K, x(Si) 0.5–0.5 | 0 | 1 |
| [DYSI2_ALPHA](#phase-dy-si-dysi2-alpha); _phase:dy-si:dysi2-alpha_ | GdSi1.4 · oI12 · Imma (74) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 1 of 1 calculated diagram(s): 300–763.07 K, x(Si) 0.66667–0.66667 | 0 | 1 |
| [DYSI2_CC](#phase-dy-si-dysi2-cc); _phase:dy-si:dysi2-cc_ | Si2Th · C_c · tI12 · I4_1/amd (141) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 763.07–1709.93 K, x(Si) 0.66667–0.66667 | 0 | 1 |
| [FCC_A1](#phase-dy-si-fcc-a1); _phase:dy-si:fcc-a1_ | Cu · A1 · cF4 · Fm-3m (225) | tier A: standard phase name | not stable in 1 calculated diagram(s) | 0 | 1 |
| [HCP_A3](#phase-dy-si-hcp-a3); _phase:dy-si:hcp-a3_ | Mg · A3 · hP2 · P6_3/mmc (194) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–1679.15 K, x(Si) 0–0 | 0 | 1 |
| [LIQUID](#phase-dy-si-liquid); _phase:dy-si:liquid_ | liquid | liquid | stable in 1 of 1 calculated diagram(s): 1439.05–2500 K, x(Si) 0–1 | 0 | 1 |

## DIAMOND_A4 (Dy–Si)

- Id: `phase:dy-si:a4-diamond`; status `assigned`
- Structure: C (diamond) · A4 · cF8 · Fd-3m (227); type `st:a4-c-diamond-cf8`; tier A: standard phase name; confidence high
- Stoichiometry: Si 1.0000
- Stability: stable in 1 of 1 calculated diagram(s): 300–1687 K, x(Si) 1–1
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:dy-si:a4-diamond)

Names (2): _corpus: _corpus:phase:dy-si:a4-diamond  
_tdb: _tdb:DySi-20Xu.tdb:DIAMOND_A4  


### TDB models of DIAMOND_A4 (1): PHASE and CONSTITUENT statements as written

[DySi-20Xu.tdb](https://orchid-project.org/data/databases/sgte-binary/DySi-20Xu.tdb): DIAMOND_A4, type code %, sha256 `fc1df6d524cf6b9f…`

~~~~text
40: PHASE DIAMOND_A4 % 1 1 !
41: CONST DIAMOND_A4 : SI : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1016/j.calphad.2020.101738](https://doi.org/10.1016/j.calphad.2020.101738) K. Xu, L. Chen, K. Chang, P. Wan, M. Li, Z. Deng, F. Huang, Q. Huang, Calphad, 68, 101738(2020).  
_assessment that models this phase_

## BCC_A2 (Dy–Si)

- Id: `phase:dy-si: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 1 of 1 calculated diagram(s): 1654.15–1680 K, x(Si) 0–0
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:dy-si:bcc-a2)

Names (2): _corpus: _corpus:phase:dy-si:bcc-a2  
_tdb: _tdb:DySi-20Xu.tdb:BCC_A2  


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

[DySi-20Xu.tdb](https://orchid-project.org/data/databases/sgte-binary/DySi-20Xu.tdb): BCC_A2, type code %B, sha256 `fc1df6d524cf6b9f…`

~~~~text
30: PHASE BCC_A2 %B 2 1 3 !
31: CONST BCC_A2 : DY% SI : VA : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1016/j.calphad.2020.101738](https://doi.org/10.1016/j.calphad.2020.101738) K. Xu, L. Chen, K. Chang, P. Wan, M. Li, Z. Deng, F. Huang, Q. Huang, Calphad, 68, 101738(2020).  
_assessment that models this phase_

## DY3SI4 (Dy–Si)

- Id: `phase:dy-si:dy3si4`; status `assigned`
- Structure: Ho3Si4 · oC24 · Cmcm (63); type `st:ho3si4-oc24`; 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: Dy 0.4286, Si 0.5714
- Stability: stable in 1 of 1 calculated diagram(s): 300–1623.02 K, x(Si) 0.57143–0.57143
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:dy-si:dy3si4)

Names (2): _corpus: _corpus:phase:dy-si:dy3si4  
_tdb: _tdb:DySi-20Xu.tdb:DY3SI4  


### TDB models of DY3SI4 (1): PHASE and CONSTITUENT statements as written

[DySi-20Xu.tdb](https://orchid-project.org/data/databases/sgte-binary/DySi-20Xu.tdb): DY3SI4, type code %, sha256 `fc1df6d524cf6b9f…`

~~~~text
61: PHASE DY3SI4 % 2 3 4 !
62: CONST DY3SI4 : DY : SI : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1016/j.calphad.2020.101738](https://doi.org/10.1016/j.calphad.2020.101738) K. Xu, L. Chen, K. Chang, P. Wan, M. Li, Z. Deng, F. Huang, Q. Huang, Calphad, 68, 101738(2020).  
_assessment that models this phase_

## DY3SI5_BETA (Dy–Si)

- Id: `phase:dy-si:dy3si5-beta`; status `needs_review`
- No structure assigned. Why: no_structure_token; polymorph_family:other phases of this system have the same composition; sgte_mmc2_row_incomplete
- Candidate (sgte_mmc2): (Dy3Si5-beta) — Hallstedt 2025 mmc2 row for DY3SI5_BETA: Dy3Si5 (high T)
- Stoichiometry: Dy 0.3750, Si 0.6250
- Stability: stable in 1 of 1 calculated diagram(s): 1032.97–1903.47 K, x(Si) 0.625–0.625
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:dy-si:dy3si5-beta)

Names (2): _corpus: _corpus:phase:dy-si:dy3si5-beta  
_tdb: _tdb:DySi-20Xu.tdb:DY3SI5_BETA  


### TDB models of DY3SI5_BETA (1): PHASE and CONSTITUENT statements as written

[DySi-20Xu.tdb](https://orchid-project.org/data/databases/sgte-binary/DySi-20Xu.tdb): DY3SI5_BETA, type code %, sha256 `fc1df6d524cf6b9f…`

~~~~text
71: PHASE DY3SI5_BETA % 2 3 5 !
72: CONST DY3SI5_BETA : DY : SI : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1016/j.calphad.2020.101738](https://doi.org/10.1016/j.calphad.2020.101738) K. Xu, L. Chen, K. Chang, P. Wan, M. Li, Z. Deng, F. Huang, Q. Huang, Calphad, 68, 101738(2020).  
_assessment that models this phase_

## DY3SI5_C32 (Dy–Si)

- Id: `phase:dy-si:dy3si5-c32`; status `needs_review`
- No structure assigned. Why: assessment_declared_blocked_by:stoichiometry_contradicts_C32; stoichiometry_contradicts_C32:DySi-20Xu.tdb
- Candidate (name_token): AlB2 · C32 · hP3 · P6/mmm (191) — Strukturbericht/word 'C32' in the TDB name
- Candidate (sgte_mmc2): AlB2 · C32 · hP3 · P6/mmm (191) — Hallstedt 2025 mmc2 row for DY3SI5_C32: Dy3Si5 (low T)
- Candidate (tdb_comment): AlB2 · hP3 · P6/mmm — DySi-20Xu.tdb: 'Prototype AlB2 (hP3, P6/mmm)'
- Stoichiometry: Dy 0.3750, Si 0.6250
- Stability: stable in 1 of 1 calculated diagram(s): 300–1032.97 K, x(Si) 0.625–0.625
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:dy-si:dy3si5-c32)

Names (2): _corpus: _corpus:phase:dy-si:dy3si5-c32  
_tdb: _tdb:DySi-20Xu.tdb:DY3SI5_C32  


### TDB models of DY3SI5_C32 (1): PHASE and CONSTITUENT statements as written

[DySi-20Xu.tdb](https://orchid-project.org/data/databases/sgte-binary/DySi-20Xu.tdb): DY3SI5_C32, type code %, sha256 `fc1df6d524cf6b9f…`

~~~~text
66: PHASE DY3SI5_C32 % 2 3 5 !
67: CONST DY3SI5_C32 : DY : SI : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1016/j.calphad.2020.101738](https://doi.org/10.1016/j.calphad.2020.101738) K. Xu, L. Chen, K. Chang, P. Wan, M. Li, Z. Deng, F. Huang, Q. Huang, Calphad, 68, 101738(2020).  
_assessment that models this phase_

## DY5SI3_D88 (Dy–Si)

- Id: `phase:dy-si:dy5si3-d88`; status `assigned`
- Structure: Mn5Si3 · D8_8 · hP16 · P6_3/mcm (193); type `st:d8-8-mn5si3-hp16`; tier A: standard phase name; confidence high
- Caveat: DFT agrees: on-hull mp-aaaaaefc and oqmd-651409, space group 193
- Stoichiometry: Dy 0.6250, Si 0.3750
- Stability: stable in 1 of 1 calculated diagram(s): 300–2144.22 K, x(Si) 0.375–0.375
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:dy-si:dy5si3-d88)

Names (4): _corpus: _corpus:phase:dy-si:dy5si3-d88  
_mp: _mp:mp-aaaaaefc  
_oqmd: _oqmd:oqmd-651409  
_tdb: _tdb:DySi-20Xu.tdb:DY5SI3_D88  


### TDB models of DY5SI3_D88 (1): PHASE and CONSTITUENT statements as written

[DySi-20Xu.tdb](https://orchid-project.org/data/databases/sgte-binary/DySi-20Xu.tdb): DY5SI3_D88, type code %, sha256 `fc1df6d524cf6b9f…`

~~~~text
45: PHASE DY5SI3_D88 % 2 5 3 !
46: CONST DY5SI3_D88 : DY : SI : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1016/j.calphad.2020.101738](https://doi.org/10.1016/j.calphad.2020.101738) K. Xu, L. Chen, K. Chang, P. Wan, M. Li, Z. Deng, F. Huang, Q. Huang, Calphad, 68, 101738(2020).  
_assessment that models this phase_

## DY5SI4 (Dy–Si)

- Id: `phase:dy-si:dy5si4`; status `assigned`
- Structure: Gd5Si4 · oP36 · Pnma (62); type `st:gd5si4-op36`; 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: Dy 0.5556, Si 0.4444
- Stability: stable in 1 of 1 calculated diagram(s): 300–2100.87 K, x(Si) 0.44444–0.44444
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:dy-si:dy5si4)

Names (2): _corpus: _corpus:phase:dy-si:dy5si4  
_tdb: _tdb:DySi-20Xu.tdb:DY5SI4  


### TDB models of DY5SI4 (1): PHASE and CONSTITUENT statements as written

[DySi-20Xu.tdb](https://orchid-project.org/data/databases/sgte-binary/DySi-20Xu.tdb): DY5SI4, type code %, sha256 `fc1df6d524cf6b9f…`

~~~~text
50: PHASE DY5SI4 % 2 5 4 !
51: CONST DY5SI4 : DY : SI : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1016/j.calphad.2020.101738](https://doi.org/10.1016/j.calphad.2020.101738) K. Xu, L. Chen, K. Chang, P. Wan, M. Li, Z. Deng, F. Huang, Q. Huang, Calphad, 68, 101738(2020).  
_assessment that models this phase_

## DYSI_B33 (Dy–Si)

- Id: `phase:dy-si:dysi-b33`; status `assigned`
- Structure: CrB · B33 · oC8 · Cmcm (63); type `st:b33-crb-oc8`; tier A: standard phase name; confidence high
- Stoichiometry: Dy 0.5000, Si 0.5000
- Stability: stable in 1 of 1 calculated diagram(s): 300–2150.72 K, x(Si) 0.5–0.5
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:dy-si:dysi-b33)

Names (2): _corpus: _corpus:phase:dy-si:dysi-b33  
_tdb: _tdb:DySi-20Xu.tdb:DYSI_B33  


### TDB models of DYSI_B33 (1): PHASE and CONSTITUENT statements as written

[DySi-20Xu.tdb](https://orchid-project.org/data/databases/sgte-binary/DySi-20Xu.tdb): DYSI_B33, type code %, sha256 `fc1df6d524cf6b9f…`

~~~~text
56: PHASE DYSI_B33 % 2 1 1 !
57: CONST DYSI_B33 : DY : SI : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1016/j.calphad.2020.101738](https://doi.org/10.1016/j.calphad.2020.101738) K. Xu, L. Chen, K. Chang, P. Wan, M. Li, Z. Deng, F. Huang, Q. Huang, Calphad, 68, 101738(2020).  
_assessment that models this phase_

## DYSI2_ALPHA (Dy–Si)

- Id: `phase:dy-si:dysi2-alpha`; status `assigned`
- Structure: GdSi1.4 · oI12 · Imma (74); type `st:gdsi1-4-oi12`; tier C: assessor-stated (Hallstedt 2025 crystallographic table); confidence assessor-stated
- Structure source: B. Hallstedt, The SGTE collection of binary datasets, Calphad 89 (2025) 102833, supplementary crystallographic table (mmc2) [doi:10.1016/j.calphad.2025.102833](https://doi.org/10.1016/j.calphad.2025.102833)
- Caveat: not certain from the name or DFT alone (no_structure_token, polymorph_family:other phases of this system have the same composition); structure as stated in the SGTE crystallographic table for this phase name and system
- Stoichiometry: Dy 0.3333, Si 0.6667
- Stability: stable in 1 of 1 calculated diagram(s): 300–763.07 K, x(Si) 0.66667–0.66667
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:dy-si:dysi2-alpha)

Names (2): _corpus: _corpus:phase:dy-si:dysi2-alpha  
_tdb: _tdb:DySi-20Xu.tdb:DYSI2_ALPHA  


### TDB models of DYSI2_ALPHA (1): PHASE and CONSTITUENT statements as written

[DySi-20Xu.tdb](https://orchid-project.org/data/databases/sgte-binary/DySi-20Xu.tdb): DYSI2_ALPHA, type code %, sha256 `fc1df6d524cf6b9f…`

~~~~text
76: PHASE DYSI2_ALPHA % 2 1 2 !
77: CONST DYSI2_ALPHA : DY : SI : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1016/j.calphad.2020.101738](https://doi.org/10.1016/j.calphad.2020.101738) K. Xu, L. Chen, K. Chang, P. Wan, M. Li, Z. Deng, F. Huang, Q. Huang, Calphad, 68, 101738(2020).  
_assessment that models this phase_

## DYSI2_CC (Dy–Si)

- Id: `phase:dy-si:dysi2-cc`; status `assigned`
- Structure: Si2Th · C_c · tI12 · I4_1/amd (141); type `st:c-c-si2th-ti12`; tier A: standard phase name; confidence high
- Stoichiometry: Dy 0.3333, Si 0.6667
- Stability: stable in 1 of 1 calculated diagram(s): 763.07–1709.93 K, x(Si) 0.66667–0.66667
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:dy-si:dysi2-cc)

Names (2): _corpus: _corpus:phase:dy-si:dysi2-cc  
_tdb: _tdb:DySi-20Xu.tdb:DYSI2_CC  


### TDB models of DYSI2_CC (1): PHASE and CONSTITUENT statements as written

[DySi-20Xu.tdb](https://orchid-project.org/data/databases/sgte-binary/DySi-20Xu.tdb): DYSI2_CC, type code %, sha256 `fc1df6d524cf6b9f…`

~~~~text
81: PHASE DYSI2_CC % 2 1 2 !
82: CONST DYSI2_CC : DY : SI : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1016/j.calphad.2020.101738](https://doi.org/10.1016/j.calphad.2020.101738) K. Xu, L. Chen, K. Chang, P. Wan, M. Li, Z. Deng, F. Huang, Q. Huang, Calphad, 68, 101738(2020).  
_assessment that models this phase_

## FCC_A1 (Dy–Si)

- Id: `phase:dy-si:fcc-a1`; status `assigned`
- Structure: Cu · A1 · cF4 · Fm-3m (225); type `st:a1-cu-cf4`; tier A: standard phase name; confidence high
- Stability: not stable in 1 calculated diagram(s)
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:dy-si:fcc-a1)

Names (2): _corpus: _corpus:phase:dy-si:fcc-a1  
_tdb: _tdb:DySi-20Xu.tdb:FCC_A1  


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

[DySi-20Xu.tdb](https://orchid-project.org/data/databases/sgte-binary/DySi-20Xu.tdb): FCC_A1, type code %A, sha256 `fc1df6d524cf6b9f…`

~~~~text
25: PHASE FCC_A1 %A 2 1 1 !
26: CONST FCC_A1 : DY SI : VA : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1016/j.calphad.2020.101738](https://doi.org/10.1016/j.calphad.2020.101738) K. Xu, L. Chen, K. Chang, P. Wan, M. Li, Z. Deng, F. Huang, Q. Huang, Calphad, 68, 101738(2020).  
_assessment that models this phase_

## HCP_A3 (Dy–Si)

- Id: `phase:dy-si:hcp-a3`; status `assigned`
- Structure: Mg · A3 · hP2 · P6_3/mmc (194); type `st:a3-mg-hp2`; tier A: standard phase name; confidence high
- Stability: stable in 1 of 1 calculated diagram(s): 300–1679.15 K, x(Si) 0–0
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:dy-si:hcp-a3)

Names (2): _corpus: _corpus:phase:dy-si:hcp-a3  
_tdb: _tdb:DySi-20Xu.tdb:HCP_A3  


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

[DySi-20Xu.tdb](https://orchid-project.org/data/databases/sgte-binary/DySi-20Xu.tdb): HCP_A3, type code %A, sha256 `fc1df6d524cf6b9f…`

~~~~text
35: PHASE HCP_A3 %A 2 1 0.5 !
36: CONST HCP_A3 : DY% SI : VA : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1016/j.calphad.2020.101738](https://doi.org/10.1016/j.calphad.2020.101738) K. Xu, L. Chen, K. Chang, P. Wan, M. Li, Z. Deng, F. Huang, Q. Huang, Calphad, 68, 101738(2020).  
_assessment that models this phase_

## LIQUID (Dy–Si)

- Id: `phase:dy-si:liquid`; status `assigned`
- Structure: liquid; type `st:liquid`; liquid; confidence high
- Stability: stable in 1 of 1 calculated diagram(s): 1439.05–2500 K, x(Si) 0–1
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:dy-si:liquid)

Names (2): _corpus: _corpus:phase:dy-si:liquid  
_tdb: _tdb:DySi-20Xu.tdb:LIQUID  


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

[DySi-20Xu.tdb](https://orchid-project.org/data/databases/sgte-binary/DySi-20Xu.tdb): LIQUID, type code %, sha256 `fc1df6d524cf6b9f…`

~~~~text
20: PHASE LIQUID:L % 1 1 !
21: CONST LIQUID:L : DY SI : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1016/j.calphad.2020.101738](https://doi.org/10.1016/j.calphad.2020.101738) K. Xu, L. Chen, K. Chang, P. Wan, M. Li, Z. Deng, F. Huang, Q. Huang, Calphad, 68, 101738(2020).  
_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).