# Ho–Pd phases

> Ho–Pd system: 14 phases (tier A 7, tier B 1, tier C 1, liquid 1, needs_review 4); 14 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/HO-PD.html · Markdown: https://data.orchid-project.org/phases/pages/HO-PD.md

14 phases (tier A 7, tier B 1, tier C 1, liquid 1, needs_review 4); 14 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=HO-PD) · [full JSON](https://data.orchid-project.org/phases/systems/HO-PD.json) · [Ho–Pd system page](https://data.orchid-project.org/systems/HO-PD.html) · [Markdown](https://data.orchid-project.org/phases/pages/HO-PD.md) · [field reference](https://data.orchid-project.org/phases/SCHEMA.md)

Table: Phases of the Ho–Pd system (14)

| Phase | Structure | Basis | Stability (calculated) | Literature values | TDB models |
|---|---|---|---|---:|---:|
| [BCC_A2](#phase-ho-pd-bcc-a2); _phase:ho-pd:bcc-a2_ | W · A2 · cI2 · Im-3m (229) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 1710–1740 K | 0 | 1 |
| [FCC_A1](#phase-ho-pd-fcc-a1); _phase:ho-pd:fcc-a1_ | Cu · A1 · cF4 · Fm-3m (225) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–2233 K, x(Pd) 0.88155–1 | 0 | 1 |
| [HCP_A3](#phase-ho-pd-hcp-a3); _phase:ho-pd:hcp-a3_ | Mg · A3 · hP2 · P6_3/mmc (194) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–1700 K | 0 | 1 |
| [HO10PD21](#phase-ho-pd-ho10pd21); _phase:ho-pd:ho10pd21_ |  | needs_review | stable in 1 of 1 calculated diagram(s): 300–1580 K | 0 | 1 |
| [HO2PD3_HT](#phase-ho-pd-ho2pd3-ht); _phase:ho-pd:ho2pd3-ht_ |  | needs_review | stable in 1 of 1 calculated diagram(s): 1400–1550 K, x(Pd) 0.6–0.6 | 0 | 1 |
| [HO2PD3_LT](#phase-ho-pd-ho2pd3-lt); _phase:ho-pd:ho2pd3-lt_ |  | needs_review | stable in 1 of 1 calculated diagram(s): 300–1390 K, x(Pd) 0.6–0.6 | 0 | 1 |
| [HO3PD2_D5A](#phase-ho-pd-ho3pd2-d5a); _phase:ho-pd:ho3pd2-d5a_ | Si2U3 · D5_a · tP10 · P4/mbm (127) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–1240 K, x(Pd) 0.4–0.4 | 0 | 1 |
| [HO3PD4](#phase-ho-pd-ho3pd4); _phase:ho-pd:ho3pd4_ | Pd4Pu3 · hR14 · R-3 (148) | tier B: DFT-supported (unique MP + OQMD match) | stable in 1 of 1 calculated diagram(s): 300–1700 K | 0 | 1 |
| [HO5PD2](#phase-ho-pd-ho5pd2); _phase:ho-pd:ho5pd2_ | Dy5Pd2 · cF144 · Fd-3m (227) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 1 of 1 calculated diagram(s): 300–1220 K | 0 | 1 |
| [HOPD_B2](#phase-ho-pd-hopd-b2); _phase:ho-pd:hopd-b2_ | CsCl · B2 · cP2 · Pm-3m (221) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 940–1750 K, x(Pd) 0.49–0.49 | 0 | 1 |
| [HOPD_B27](#phase-ho-pd-hopd-b27); _phase:ho-pd:hopd-b27_ | FeB · B27 · oP8 · Pnma (62) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–970 K, x(Pd) 0.5–0.5 | 0 | 1 |
| [HOPD3_L12](#phase-ho-pd-hopd3-l12); _phase:ho-pd:hopd3-l12_ | AuCu3 · L1_2 · cP4 · Pm-3m (221) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–2001.54 K, x(Pd) 0.75–0.79332 | 0 | 1 |
| [HOPD7](#phase-ho-pd-hopd7); _phase:ho-pd:hopd7_ |  | needs_review | stable in 1 of 1 calculated diagram(s): 300–748.03 K, x(Pd) 0.875–0.875 | 0 | 1 |
| [LIQUID](#phase-ho-pd-liquid); _phase:ho-pd:liquid_ | liquid | liquid | stable in 1 of 1 calculated diagram(s): 1180–2500 K, x(Pd) 0–1 | 0 | 1 |

## BCC_A2 (Ho–Pd)

- Id: `phase:ho-pd: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): 1710–1740 K
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ho-pd:bcc-a2)

Names (2): _corpus: _corpus:phase:ho-pd:bcc-a2  
_tdb: _tdb:HoPd-00Du.tdb:BCC_A2  


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

[HoPd-00Du.tdb](https://orchid-project.org/data/databases/sgte-binary/HoPd-00Du.tdb): BCC_A2, type code %B, sha256 `52adcba39cc7336f…`

~~~~text
40: PHASE BCC_A2 %B 2 1 3 !
41: CONST BCC_A2 : HO PD : VA : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1515/ijmr-2000-911114](https://doi.org/10.1515/ijmr-2000-911114) Z. Du, H. Yang, T. Liu, Z. Metallkd., 91, 963-66(2000).  
_assessment that models this phase_

## FCC_A1 (Ho–Pd)

- Id: `phase:ho-pd: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 1 of 1 calculated diagram(s): 300–2233 K, x(Pd) 0.88155–1
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ho-pd:fcc-a1)

Names (2): _corpus: _corpus:phase:ho-pd:fcc-a1  
_tdb: _tdb:HoPd-00Du.tdb:FCC_A1  


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

[HoPd-00Du.tdb](https://orchid-project.org/data/databases/sgte-binary/HoPd-00Du.tdb): FCC_A1, type code %A, sha256 `52adcba39cc7336f…`

~~~~text
35: PHASE FCC_A1 %A 2 1 1 !
36: CONST FCC_A1 : HO PD% : VA : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1515/ijmr-2000-911114](https://doi.org/10.1515/ijmr-2000-911114) Z. Du, H. Yang, T. Liu, Z. Metallkd., 91, 963-66(2000).  
_assessment that models this phase_

## HCP_A3 (Ho–Pd)

- Id: `phase:ho-pd: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): 300–1700 K
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ho-pd:hcp-a3)

Names (2): _corpus: _corpus:phase:ho-pd:hcp-a3  
_tdb: _tdb:HoPd-00Du.tdb:HCP_A3  


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

[HoPd-00Du.tdb](https://orchid-project.org/data/databases/sgte-binary/HoPd-00Du.tdb): HCP_A3, type code %A, sha256 `52adcba39cc7336f…`

~~~~text
45: PHASE HCP_A3 %A 2 1 0.5 !
46: CONST HCP_A3 : HO% PD : VA : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1515/ijmr-2000-911114](https://doi.org/10.1515/ijmr-2000-911114) Z. Du, H. Yang, T. Liu, Z. Metallkd., 91, 963-66(2000).  
_assessment that models this phase_

## HO10PD21 (Ho–Pd)

- Id: `phase:ho-pd:ho10pd21`; status `needs_review`
- No structure assigned. Why: no_on_hull_entry_in_both; no_structure_token; sgte_mmc2_row_incomplete
- Candidate (sgte_mmc2): (Ho10Pd21) — Hallstedt 2025 mmc2 row for HO10PD21: Ho10Pd21
- Stoichiometry: Ho 0.3226, Pd 0.6774
- Stability: stable in 1 of 1 calculated diagram(s): 300–1580 K
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ho-pd:ho10pd21)

Names (2): _corpus: _corpus:phase:ho-pd:ho10pd21  
_tdb: _tdb:HoPd-00Du.tdb:HO10PD21  


### TDB models of HO10PD21 (1): PHASE and CONSTITUENT statements as written

[HoPd-00Du.tdb](https://orchid-project.org/data/databases/sgte-binary/HoPd-00Du.tdb): HO10PD21, type code %, sha256 `52adcba39cc7336f…`

~~~~text
85: PHASE HO10PD21 % 2 10 21 !
86: CONST HO10PD21 : HO : PD : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1515/ijmr-2000-911114](https://doi.org/10.1515/ijmr-2000-911114) Z. Du, H. Yang, T. Liu, Z. Metallkd., 91, 963-66(2000).  
_assessment that models this phase_

## HO2PD3_HT (Ho–Pd)

- Id: `phase:ho-pd:ho2pd3-ht`; status `needs_review`
- No structure assigned. Why: no_structure_token; polymorph_family:other phases of this system have the same composition
- Candidate (sgte_mmc2): (Ho2Pd3-HT) — Hallstedt 2025 mmc2 row for HO2PD3_HT: Ho2Pd3-HT
- Stoichiometry: Ho 0.4000, Pd 0.6000
- Stability: stable in 1 of 1 calculated diagram(s): 1400–1550 K, x(Pd) 0.6–0.6
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ho-pd:ho2pd3-ht)

Names (2): _corpus: _corpus:phase:ho-pd:ho2pd3-ht  
_tdb: _tdb:HoPd-00Du.tdb:HO2PD3_HT  


### TDB models of HO2PD3_HT (1): PHASE and CONSTITUENT statements as written

[HoPd-00Du.tdb](https://orchid-project.org/data/databases/sgte-binary/HoPd-00Du.tdb): HO2PD3_HT, type code %, sha256 `52adcba39cc7336f…`

~~~~text
80: PHASE HO2PD3_HT % 2 2 3 !
81: CONST HO2PD3_HT : HO : PD : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1515/ijmr-2000-911114](https://doi.org/10.1515/ijmr-2000-911114) Z. Du, H. Yang, T. Liu, Z. Metallkd., 91, 963-66(2000).  
_assessment that models this phase_

## HO2PD3_LT (Ho–Pd)

- Id: `phase:ho-pd:ho2pd3-lt`; status `needs_review`
- No structure assigned. Why: no_structure_token; polymorph_family:other phases of this system have the same composition
- Candidate (sgte_mmc2): (Ho2Pd3-LT) — Hallstedt 2025 mmc2 row for HO2PD3_LT: Ho2Pd3-LT
- Stoichiometry: Ho 0.4000, Pd 0.6000
- Stability: stable in 1 of 1 calculated diagram(s): 300–1390 K, x(Pd) 0.6–0.6
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ho-pd:ho2pd3-lt)

Names (2): _corpus: _corpus:phase:ho-pd:ho2pd3-lt  
_tdb: _tdb:HoPd-00Du.tdb:HO2PD3_LT  


### TDB models of HO2PD3_LT (1): PHASE and CONSTITUENT statements as written

[HoPd-00Du.tdb](https://orchid-project.org/data/databases/sgte-binary/HoPd-00Du.tdb): HO2PD3_LT, type code %, sha256 `52adcba39cc7336f…`

~~~~text
75: PHASE HO2PD3_LT % 2 2 3 !
76: CONST HO2PD3_LT : HO : PD : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1515/ijmr-2000-911114](https://doi.org/10.1515/ijmr-2000-911114) Z. Du, H. Yang, T. Liu, Z. Metallkd., 91, 963-66(2000).  
_assessment that models this phase_

## HO3PD2_D5A (Ho–Pd)

- Id: `phase:ho-pd:ho3pd2-d5a`; status `assigned`
- Structure: Si2U3 · D5_a · tP10 · P4/mbm (127); type `st:d5-a-si2u3-tp10`; tier A: standard phase name; confidence high
- Stoichiometry: Ho 0.6000, Pd 0.4000
- Stability: stable in 1 of 1 calculated diagram(s): 300–1240 K, x(Pd) 0.4–0.4
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ho-pd:ho3pd2-d5a)

Names (2): _corpus: _corpus:phase:ho-pd:ho3pd2-d5a  
_tdb: _tdb:HoPd-00Du.tdb:HO3PD2_D5A  


### TDB models of HO3PD2_D5A (1): PHASE and CONSTITUENT statements as written

[HoPd-00Du.tdb](https://orchid-project.org/data/databases/sgte-binary/HoPd-00Du.tdb): HO3PD2_D5A, type code %, sha256 `52adcba39cc7336f…`

~~~~text
55: PHASE HO3PD2_D5A % 2 3 2 !
56: CONST HO3PD2_D5A : HO : PD : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1515/ijmr-2000-911114](https://doi.org/10.1515/ijmr-2000-911114) Z. Du, H. Yang, T. Liu, Z. Metallkd., 91, 963-66(2000).  
_assessment that models this phase_

## HO3PD4 (Ho–Pd)

- Id: `phase:ho-pd:ho3pd4`; status `assigned`
- Structure: Pd4Pu3 · hR14 · R-3 (148); type `st:pd4pu3-hr14`; tier B: DFT-supported (unique MP + OQMD match); confidence high
- Stoichiometry: Ho 0.4286, Pd 0.5714
- Stability: stable in 1 of 1 calculated diagram(s): 300–1700 K
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ho-pd:ho3pd4)

Names (4): _corpus: _corpus:phase:ho-pd:ho3pd4  
_mp: _mp:mp-aaackvlm  
_oqmd: _oqmd:oqmd-1437082  
_tdb: _tdb:HoPd-00Du.tdb:HO3PD4  


### TDB models of HO3PD4 (1): PHASE and CONSTITUENT statements as written

[HoPd-00Du.tdb](https://orchid-project.org/data/databases/sgte-binary/HoPd-00Du.tdb): HO3PD4, type code %, sha256 `52adcba39cc7336f…`

~~~~text
70: PHASE HO3PD4 % 2 3 4 !
71: CONST HO3PD4 : HO : PD : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1515/ijmr-2000-911114](https://doi.org/10.1515/ijmr-2000-911114) Z. Du, H. Yang, T. Liu, Z. Metallkd., 91, 963-66(2000).  
_assessment that models this phase_

## HO5PD2 (Ho–Pd)

- Id: `phase:ho-pd:ho5pd2`; status `assigned`
- Structure: Dy5Pd2 · cF144 · Fd-3m (227); type `st:dy5pd2-cf144`; 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: Ho 0.7143, Pd 0.2857
- Stability: stable in 1 of 1 calculated diagram(s): 300–1220 K
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ho-pd:ho5pd2)

Names (2): _corpus: _corpus:phase:ho-pd:ho5pd2  
_tdb: _tdb:HoPd-00Du.tdb:HO5PD2  


### TDB models of HO5PD2 (1): PHASE and CONSTITUENT statements as written

[HoPd-00Du.tdb](https://orchid-project.org/data/databases/sgte-binary/HoPd-00Du.tdb): HO5PD2, type code %, sha256 `52adcba39cc7336f…`

~~~~text
50: PHASE HO5PD2 % 2 5 2 !
51: CONST HO5PD2 : HO : PD : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1515/ijmr-2000-911114](https://doi.org/10.1515/ijmr-2000-911114) Z. Du, H. Yang, T. Liu, Z. Metallkd., 91, 963-66(2000).  
_assessment that models this phase_

## HOPD_B2 (Ho–Pd)

- Id: `phase:ho-pd:hopd-b2`; status `assigned`
- Structure: CsCl · B2 · cP2 · Pm-3m (221); type `st:b2-cscl-cp2`; tier A: standard phase name; confidence high
- Stability: stable in 1 of 1 calculated diagram(s): 940–1750 K, x(Pd) 0.49–0.49
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ho-pd:hopd-b2)

Names (2): _corpus: _corpus:phase:ho-pd:hopd-b2  
_tdb: _tdb:HoPd-00Du.tdb:HOPD_B2  


### TDB models of HOPD_B2 (1): PHASE and CONSTITUENT statements as written

[HoPd-00Du.tdb](https://orchid-project.org/data/databases/sgte-binary/HoPd-00Du.tdb): HOPD_B2, type code %, sha256 `52adcba39cc7336f…`

~~~~text
65: PHASE HOPD_B2 % 2 1 1 !
66: CONST HOPD_B2 : HO : HO PD% : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1515/ijmr-2000-911114](https://doi.org/10.1515/ijmr-2000-911114) Z. Du, H. Yang, T. Liu, Z. Metallkd., 91, 963-66(2000).  
_assessment that models this phase_

## HOPD_B27 (Ho–Pd)

- Id: `phase:ho-pd:hopd-b27`; status `assigned`
- Structure: FeB · B27 · oP8 · Pnma (62); type `st:b27-feb-op8`; tier A: standard phase name; confidence high
- Stability: stable in 1 of 1 calculated diagram(s): 300–970 K, x(Pd) 0.5–0.5
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ho-pd:hopd-b27)

Names (2): _corpus: _corpus:phase:ho-pd:hopd-b27  
_tdb: _tdb:HoPd-00Du.tdb:HOPD_B27  


### TDB models of HOPD_B27 (1): PHASE and CONSTITUENT statements as written

[HoPd-00Du.tdb](https://orchid-project.org/data/databases/sgte-binary/HoPd-00Du.tdb): HOPD_B27, type code %, sha256 `52adcba39cc7336f…`

~~~~text
60: PHASE HOPD_B27 % 2 1 1 !
61: CONST HOPD_B27 : HO : HO PD% : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1515/ijmr-2000-911114](https://doi.org/10.1515/ijmr-2000-911114) Z. Du, H. Yang, T. Liu, Z. Metallkd., 91, 963-66(2000).  
_assessment that models this phase_

## HOPD3_L12 (Ho–Pd)

- Id: `phase:ho-pd:hopd3-l12`; status `assigned`
- Structure: AuCu3 · L1_2 · cP4 · Pm-3m (221); type `st:l1-2-aucu3-cp4`; tier A: standard phase name; confidence high
- Stability: stable in 1 of 1 calculated diagram(s): 300–2001.54 K, x(Pd) 0.75–0.79332
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ho-pd:hopd3-l12)

Names (2): _corpus: _corpus:phase:ho-pd:hopd3-l12  
_tdb: _tdb:HoPd-00Du.tdb:HOPD3_L12  


### TDB models of HOPD3_L12 (1): PHASE and CONSTITUENT statements as written

[HoPd-00Du.tdb](https://orchid-project.org/data/databases/sgte-binary/HoPd-00Du.tdb): HOPD3_L12, type code %, sha256 `52adcba39cc7336f…`

~~~~text
90: PHASE HOPD3_L12 % 2 1 3 !
91: CONST HOPD3_L12 : HO% PD : PD : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1515/ijmr-2000-911114](https://doi.org/10.1515/ijmr-2000-911114) Z. Du, H. Yang, T. Liu, Z. Metallkd., 91, 963-66(2000).  
_assessment that models this phase_

## HOPD7 (Ho–Pd)

- Id: `phase:ho-pd:hopd7`; status `needs_review`
- No structure assigned. Why: no_on_hull_entry_in_both; no_structure_token; sgte_mmc2_row_incomplete
- Candidate (sgte_mmc2): (HoPd7) — Hallstedt 2025 mmc2 row for HOPD7: HoPd7
- Stoichiometry: Ho 0.1250, Pd 0.8750
- Stability: stable in 1 of 1 calculated diagram(s): 300–748.03 K, x(Pd) 0.875–0.875
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ho-pd:hopd7)

Names (2): _corpus: _corpus:phase:ho-pd:hopd7  
_tdb: _tdb:HoPd-00Du.tdb:HOPD7  


### TDB models of HOPD7 (1): PHASE and CONSTITUENT statements as written

[HoPd-00Du.tdb](https://orchid-project.org/data/databases/sgte-binary/HoPd-00Du.tdb): HOPD7, type code %, sha256 `52adcba39cc7336f…`

~~~~text
95: PHASE HOPD7 % 2 1 7 !
96: CONST HOPD7 : HO : PD : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1515/ijmr-2000-911114](https://doi.org/10.1515/ijmr-2000-911114) Z. Du, H. Yang, T. Liu, Z. Metallkd., 91, 963-66(2000).  
_assessment that models this phase_

## LIQUID (Ho–Pd)

- Id: `phase:ho-pd:liquid`; status `assigned`
- Structure: liquid; type `st:liquid`; liquid; confidence high
- Stability: stable in 1 of 1 calculated diagram(s): 1180–2500 K, x(Pd) 0–1
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ho-pd:liquid)

Names (2): _corpus: _corpus:phase:ho-pd:liquid  
_tdb: _tdb:HoPd-00Du.tdb:LIQUID  


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

[HoPd-00Du.tdb](https://orchid-project.org/data/databases/sgte-binary/HoPd-00Du.tdb): LIQUID, type code %, sha256 `52adcba39cc7336f…`

~~~~text
30: PHASE LIQUID:L % 1 1 !
31: CONST LIQUID:L : HO PD : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1515/ijmr-2000-911114](https://doi.org/10.1515/ijmr-2000-911114) Z. Du, H. Yang, T. Liu, Z. Metallkd., 91, 963-66(2000).  
_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).