# Pd–Te phases

> Pd–Te system: 13 phases (tier A 5, tier B 1, tier C 3, liquid 1, needs_review 3); 11 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/PD-TE.html · Markdown: https://data.orchid-project.org/phases/pages/PD-TE.md

13 phases (tier A 5, tier B 1, tier C 3, liquid 1, needs_review 3); 11 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=PD-TE) · [full JSON](https://data.orchid-project.org/phases/systems/PD-TE.json) · [Pd–Te system page](https://data.orchid-project.org/systems/PD-TE.html) · [Markdown](https://data.orchid-project.org/phases/pages/PD-TE.md) · [field reference](https://data.orchid-project.org/phases/SCHEMA.md)

Table: Phases of the Pd–Te system (13)

| Phase | Structure | Basis | Stability (calculated) | Literature values | TDB models |
|---|---|---|---|---:|---:|
| [HEXAGONAL_A8](#phase-pd-te-a8-hexagonal); _phase:pd-te:a8-hexagonal_ | gamma-Se · A8 · hP3 · P3_121 (152) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–722.72 K, x(Te) 1–1 | 0 | 1 |
| [BCC_A2](#phase-pd-te-bcc-a2); _phase:pd-te:bcc-a2_ | W · A2 · cI2 · Im-3m (229) | tier A: standard phase name | not stable in 1 calculated diagram(s) | 0 | 1 |
| [FCC_A1](#phase-pd-te-fcc-a1); _phase:pd-te:fcc-a1_ | Cu · A1 · cF4 · Fm-3m (225) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–1833 K, x(Te) 0–0.16637 | 4 | 1 |
| [HCP_A3](#phase-pd-te-hcp-a3); _phase:pd-te:hcp-a3_ | Mg · A3 · hP2 · P6_3/mmc (194) | tier A: standard phase name | not stable in 1 calculated diagram(s) | 0 | 1 |
| [LIQUID](#phase-pd-te-liquid); _phase:pd-te:liquid_ | liquid | liquid | stable in 1 of 1 calculated diagram(s): 720.94–2500 K, x(Te) 0–1 | 20 | 1 |
| [PD17TE4](#phase-pd-te-pd17te4); _phase:pd-te:pd17te4_ | Pd17Te4 · cF120 · Fd-3m (227) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 1 of 1 calculated diagram(s): 300–1044.33 K, x(Te) 0.19048–0.19048 | 5 | 1 |
| [PD20TE7](#phase-pd-te-pd20te7); _phase:pd-te:pd20te7_ | Pd20Sb7 · hR27 · R-3 (148) | tier B: DFT-supported (unique MP + OQMD match) | stable in 1 of 1 calculated diagram(s): 300–1022.29 K, x(Te) 0.25926–0.25926 | 12 | 1 |
| [PD3TE_A2](#phase-pd-te-pd3te-a2); _phase:pd-te:pd3te-a2_ | W · A2 · cI2 · Im-3m (229) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 999.71–1070 K, x(Te) 0.25–0.25 | 12 | 1 |
| [PD3TE2](#phase-pd-te-pd3te2); _phase:pd-te:pd3te2_ | Rh3Te2 · oC20 · Cmcm (63) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 1 of 1 calculated diagram(s): 300–781.29 K, x(Te) 0.4–0.4 | 9 | 1 |
| [PD7TE3](#phase-pd-te-pd7te3); _phase:pd-te:pd7te3_ |  | needs_review | stable in 1 of 1 calculated diagram(s): 300–766.27 K, x(Te) 0.3–0.3 | 7 | 1 |
| [PD8TE3](#phase-pd-te-pd8te3); _phase:pd-te:pd8te3_ |  | needs_review | stable in 1 of 1 calculated diagram(s): 836.73–1254.73 K, x(Te) 0.27364–0.30244 | 14 | 1 |
| [PD9TE4](#phase-pd-te-pd9te4); _phase:pd-te:pd9te4_ | Pd9Te4 · mP52 · P2_1/c (14) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 1 of 1 calculated diagram(s): 745.79–882.96 K, x(Te) 0.30769–0.30769 | 13 | 1 |
| [PDTE_PDTE2](#phase-pd-te-pdte-pdte2); _phase:pd-te:pdte-pdte2_ |  | needs_review | stable in 1 of 1 calculated diagram(s): 300–1042.88 K, x(Te) 0.5–0.66667 | 10 | 1 |

## HEXAGONAL_A8 (Pd–Te)

- Id: `phase:pd-te:a8-hexagonal`; status `assigned`
- Structure: gamma-Se · A8 · hP3 · P3_121 (152); type `st:a8-gamma-se-hp3`; tier A: standard phase name; confidence high
- Stoichiometry: Te 1.0000
- Stability: stable in 1 of 1 calculated diagram(s): 300–722.72 K, x(Te) 1–1
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:pd-te:a8-hexagonal)

Names (3): _corpus: _corpus:phase:pd-te:a8-hexagonal, corpus:phase:pd-te:hexagonal-a8  
_tdb: _tdb:PdTe-11Gos.tdb:HEXAGONAL_A8  


### TDB models of HEXAGONAL_A8 (1): PHASE and CONSTITUENT statements as written

[PdTe-11Gos.tdb](https://orchid-project.org/data/databases/sgte-binary/PdTe-11Gos.tdb): HEXAGONAL_A8, type code %, sha256 `634f4b0ee7ceb0be…`

~~~~text
49: PHASE HEXAGONAL_A8 % 1 1 !
50: CONST HEXAGONAL_A8 : TE : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1016/j.intermet.2010.12.014](https://doi.org/10.1016/j.intermet.2010.12.014) S. Gossé, C. Guéneau, Thermodynamic assessment of the palladium–tellurium (Pd–Te) system, Intermetallics 19, 621-629 (2011).  
_assessment that models this phase_

## BCC_A2 (Pd–Te)

- Id: `phase:pd-te:bcc-a2`; status `assigned`
- Structure: W · A2 · cI2 · Im-3m (229); type `st:a2-w-ci2`; tier A: standard phase name; confidence high
- Stoichiometry: Pd 1.0000
- 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:pd-te:bcc-a2)

Names (2): _corpus: _corpus:phase:pd-te:bcc-a2  
_tdb: _tdb:PdTe-11Gos.tdb:BCC_A2  


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

[PdTe-11Gos.tdb](https://orchid-project.org/data/databases/sgte-binary/PdTe-11Gos.tdb): BCC_A2, type code %B, sha256 `634f4b0ee7ceb0be…`

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

Example references (1 of 1; assessments first): 

- [doi:10.1016/j.intermet.2010.12.014](https://doi.org/10.1016/j.intermet.2010.12.014) S. Gossé, C. Guéneau, Thermodynamic assessment of the palladium–tellurium (Pd–Te) system, Intermetallics 19, 621-629 (2011).  
_assessment that models this phase_

## FCC_A1 (Pd–Te)

- Id: `phase:pd-te: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): 300–1833 K, x(Te) 0–0.16637
- Literature: 4 values (4 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:pd-te:fcc-a1)

Names (3): _corpus: _corpus:phase:pd-te:fcc-a1  
_paper: _paper:10.1016/j.intermet.2010.12.014:Pd-FCC  
_tdb: _tdb:PdTe-11Gos.tdb:FCC_A1  


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

[PdTe-11Gos.tdb](https://orchid-project.org/data/databases/sgte-binary/PdTe-11Gos.tdb): FCC_A1, type code %A, sha256 `634f4b0ee7ceb0be…`

~~~~text
34: PHASE FCC_A1 %A 2 1 1 !
35: CONST FCC_A1 : PD% TE : VA : !
~~~~

Example references (3 of 3; assessments first): 

- [doi:10.1016/j.intermet.2010.12.014](https://doi.org/10.1016/j.intermet.2010.12.014) S. Gossé, C. Guéneau, Thermodynamic assessment of the palladium–tellurium (Pd–Te) system, Intermetallics 19, 621-629 (2011).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1007/bf02645383](https://doi.org/10.1007/bf02645383) H Okamoto, The pd-te system (palladium-tellurium), JPE 13, 73-78 (1992).  
_cited as the source of values for this phase_
- [doi:10.1016/0022-5088(86)90134-7](https://doi.org/10.1016/0022-5088%2886%2990134-7) G. Chattopadhyay, Y.J. Bhatt, S.K. Khera, Phase diagram of the PdTe system, Journal of the Less Common Metals 123, 251-266 (1986).  
_cited as the source of values for this phase_

## HCP_A3 (Pd–Te)

- Id: `phase:pd-te:hcp-a3`; status `assigned`
- Structure: Mg · A3 · hP2 · P6_3/mmc (194); type `st:a3-mg-hp2`; tier A: standard phase name; confidence high
- Stoichiometry: Pd 1.0000
- 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:pd-te:hcp-a3)

Names (2): _corpus: _corpus:phase:pd-te:hcp-a3  
_tdb: _tdb:PdTe-11Gos.tdb:HCP_A3  


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

[PdTe-11Gos.tdb](https://orchid-project.org/data/databases/sgte-binary/PdTe-11Gos.tdb): HCP_A3, type code %A, sha256 `634f4b0ee7ceb0be…`

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

Example references (1 of 1; assessments first): 

- [doi:10.1016/j.intermet.2010.12.014](https://doi.org/10.1016/j.intermet.2010.12.014) S. Gossé, C. Guéneau, Thermodynamic assessment of the palladium–tellurium (Pd–Te) system, Intermetallics 19, 621-629 (2011).  
_assessment that models this phase_

## LIQUID (Pd–Te)

- Id: `phase:pd-te:liquid`; status `assigned`
- Structure: liquid; type `st:liquid`; liquid; confidence high
- Stability: stable in 1 of 1 calculated diagram(s): 720.94–2500 K, x(Te) 0–1
- Literature: 20 values (20 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:pd-te:liquid)

Names (3): _corpus: _corpus:phase:pd-te:liquid  
_paper: _paper:10.1016/j.intermet.2010.12.014:L  
_tdb: _tdb:PdTe-11Gos.tdb:LIQUID  


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

[PdTe-11Gos.tdb](https://orchid-project.org/data/databases/sgte-binary/PdTe-11Gos.tdb): LIQUID, type code %, sha256 `634f4b0ee7ceb0be…`

~~~~text
29: PHASE LIQUID:L % 1 1 !
30: CONST LIQUID:L : PD TE : !
~~~~

Example references (3 of 3; assessments first): 

- [doi:10.1016/j.intermet.2010.12.014](https://doi.org/10.1016/j.intermet.2010.12.014) S. Gossé, C. Guéneau, Thermodynamic assessment of the palladium–tellurium (Pd–Te) system, Intermetallics 19, 621-629 (2011).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1007/bf02645383](https://doi.org/10.1007/bf02645383) H Okamoto, The pd-te system (palladium-tellurium), JPE 13, 73-78 (1992).  
_cited as the source of values for this phase_
- [doi:10.1016/0022-5088(86)90134-7](https://doi.org/10.1016/0022-5088%2886%2990134-7) G. Chattopadhyay, Y.J. Bhatt, S.K. Khera, Phase diagram of the PdTe system, Journal of the Less Common Metals 123, 251-266 (1986).  
_cited as the source of values for this phase_

## PD17TE4 (Pd–Te)

- Id: `phase:pd-te:pd17te4`; status `assigned`
- Structure: Pd17Te4 · cF120 · Fd-3m (227); type `st:pd17te4-cf120`; 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: Pd 0.8095, Te 0.1905
- Stability: stable in 1 of 1 calculated diagram(s): 300–1044.33 K, x(Te) 0.19048–0.19048
- Literature: 5 values (5 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:pd-te:pd17te4)

Names (3): _corpus: _corpus:phase:pd-te:pd17te4  
_paper: _paper:10.1016/j.intermet.2010.12.014:Pd17Te4  
_tdb: _tdb:PdTe-11Gos.tdb:PD17TE4  


### TDB models of PD17TE4 (1): PHASE and CONSTITUENT statements as written

[PdTe-11Gos.tdb](https://orchid-project.org/data/databases/sgte-binary/PdTe-11Gos.tdb): PD17TE4, type code %, sha256 `634f4b0ee7ceb0be…`

~~~~text
54: PHASE PD17TE4 % 2 17 4 !
55: CONST PD17TE4 : PD : TE : !
~~~~

Example references (4 of 4; assessments first): 

- [doi:10.1016/j.intermet.2010.12.014](https://doi.org/10.1016/j.intermet.2010.12.014) S. Gossé, C. Guéneau, Thermodynamic assessment of the palladium–tellurium (Pd–Te) system, Intermetallics 19, 621-629 (2011).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1007/bf02645383](https://doi.org/10.1007/bf02645383) H Okamoto, The pd-te system (palladium-tellurium), JPE 13, 73-78 (1992).  
_cited as the source of values for this phase_
- [doi:10.1016/0022-5088(86)90134-7](https://doi.org/10.1016/0022-5088%2886%2990134-7) G. Chattopadhyay, Y.J. Bhatt, S.K. Khera, Phase diagram of the PdTe system, Journal of the Less Common Metals 123, 251-266 (1986).  
_cited as the source of values for this phase_
- [doi:10.1016/0022-5088(90)90459-w](https://doi.org/10.1016/0022-5088%2890%2990459-w) W.S. Kim, G.Y. Chao, L.J. Cabri, Phase relations in the Pd-Te system, Journal of the Less Common Metals 162, 61-74 (1990).  
_cited as the source of values for this phase_

## PD20TE7 (Pd–Te)

- Id: `phase:pd-te:pd20te7`; status `assigned`
- Structure: Pd20Sb7 · hR27 · R-3 (148); type `st:pd20sb7-hr27`; tier B: DFT-supported (unique MP + OQMD match); confidence high
- Stoichiometry: Pd 0.7407, Te 0.2593
- Stability: stable in 1 of 1 calculated diagram(s): 300–1022.29 K, x(Te) 0.25926–0.25926
- Literature: 12 values (12 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:pd-te:pd20te7)

Names (5): _corpus: _corpus:phase:pd-te:pd20te7  
_mp: _mp:mp-aaaabrvz  
_oqmd: _oqmd:oqmd-7811  
_paper: _paper:10.1016/j.intermet.2010.12.014:Pd20Te7  
_tdb: _tdb:PdTe-11Gos.tdb:PD20TE7  


### TDB models of PD20TE7 (1): PHASE and CONSTITUENT statements as written

[PdTe-11Gos.tdb](https://orchid-project.org/data/databases/sgte-binary/PdTe-11Gos.tdb): PD20TE7, type code %, sha256 `634f4b0ee7ceb0be…`

~~~~text
64: PHASE PD20TE7 % 2 20 7 !
65: CONST PD20TE7 : PD : TE : !
~~~~

Example references (5 of 5; assessments first): 

- [doi:10.1016/j.intermet.2010.12.014](https://doi.org/10.1016/j.intermet.2010.12.014) S. Gossé, C. Guéneau, Thermodynamic assessment of the palladium–tellurium (Pd–Te) system, Intermetallics 19, 621-629 (2011).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1016/0022-5088(77)90171-0](https://doi.org/10.1016/0022-5088%2877%2990171-0) W. Wopersnow, K. Schubert, Kristallstruktur von Pd20Sb7 und Pd20Te7, Journal of the Less Common Metals 51, 35-44 (1977).  
_cited as the source of values for this phase_
- [doi:10.1016/0022-5088(86)90134-7](https://doi.org/10.1016/0022-5088%2886%2990134-7) G. Chattopadhyay, Y.J. Bhatt, S.K. Khera, Phase diagram of the PdTe system, Journal of the Less Common Metals 123, 251-266 (1986).  
_cited as the source of values for this phase_
- [doi:10.1007/bf02645383](https://doi.org/10.1007/bf02645383) H Okamoto, The pd-te system (palladium-tellurium), JPE 13, 73-78 (1992).  
_cited as the source of values for this phase_
- [doi:10.1515/ijmr-1978-690510](https://doi.org/10.1515/ijmr-1978-690510) Bhan S, Kudielka H. Ordered BCC-phases at high temperatures in alloys of transition metals and B-subgroup elements. Z Metallkd 1978;69: 333e6.  
_cited as the source of values for this phase_

## PD3TE_A2 (Pd–Te)

- Id: `phase:pd-te:pd3te-a2`; status `assigned`
- Structure: W · A2 · cI2 · Im-3m (229); type `st:a2-w-ci2`; tier A: standard phase name; confidence high
- Stoichiometry: Pd 0.7500, Te 0.2500
- Stability: stable in 1 of 1 calculated diagram(s): 999.71–1070 K, x(Te) 0.25–0.25
- Literature: 12 values (12 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:pd-te:pd3te-a2)

Names (3): _corpus: _corpus:phase:pd-te:pd3te-a2  
_paper: _paper:10.1016/j.intermet.2010.12.014:Pd3Te  
_tdb: _tdb:PdTe-11Gos.tdb:PD3TE_A2  


### TDB models of PD3TE_A2 (1): PHASE and CONSTITUENT statements as written

[PdTe-11Gos.tdb](https://orchid-project.org/data/databases/sgte-binary/PdTe-11Gos.tdb): PD3TE_A2, type code %, sha256 `634f4b0ee7ceb0be…`

~~~~text
59: PHASE PD3TE_A2 % 2 3 1 !
60: CONST PD3TE_A2 : PD : TE : !
~~~~

Example references (4 of 4; assessments first): 

- [doi:10.1016/j.intermet.2010.12.014](https://doi.org/10.1016/j.intermet.2010.12.014) S. Gossé, C. Guéneau, Thermodynamic assessment of the palladium–tellurium (Pd–Te) system, Intermetallics 19, 621-629 (2011).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1007/bf02645383](https://doi.org/10.1007/bf02645383) H Okamoto, The pd-te system (palladium-tellurium), JPE 13, 73-78 (1992).  
_cited as the source of values for this phase_
- [doi:10.1016/0022-5088(86)90134-7](https://doi.org/10.1016/0022-5088%2886%2990134-7) G. Chattopadhyay, Y.J. Bhatt, S.K. Khera, Phase diagram of the PdTe system, Journal of the Less Common Metals 123, 251-266 (1986).  
_cited as the source of values for this phase_
- [doi:10.1515/ijmr-1978-690510](https://doi.org/10.1515/ijmr-1978-690510) Bhan S, Kudielka H. Ordered BCC-phases at high temperatures in alloys of transition metals and B-subgroup elements. Z Metallkd 1978;69: 333e6.  
_cited as the source of values for this phase_

## PD3TE2 (Pd–Te)

- Id: `phase:pd-te:pd3te2`; status `assigned`
- Structure: Rh3Te2 · oC20 · Cmcm (63); type `st:rh3te2-oc20`; 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_mp, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
- Stoichiometry: Pd 0.6000, Te 0.4000
- Stability: stable in 1 of 1 calculated diagram(s): 300–781.29 K, x(Te) 0.4–0.4
- Literature: 9 values (9 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:pd-te:pd3te2)

Names (3): _corpus: _corpus:phase:pd-te:pd3te2  
_paper: _paper:10.1016/j.intermet.2010.12.014:Pd3Te2  
_tdb: _tdb:PdTe-11Gos.tdb:PD3TE2  


### TDB models of PD3TE2 (1): PHASE and CONSTITUENT statements as written

[PdTe-11Gos.tdb](https://orchid-project.org/data/databases/sgte-binary/PdTe-11Gos.tdb): PD3TE2, type code %, sha256 `634f4b0ee7ceb0be…`

~~~~text
84: PHASE PD3TE2 % 2 3 2 !
85: CONST PD3TE2 : PD : TE : !
~~~~

Example references (4 of 4; assessments first): 

- [doi:10.1016/j.intermet.2010.12.014](https://doi.org/10.1016/j.intermet.2010.12.014) S. Gossé, C. Guéneau, Thermodynamic assessment of the palladium–tellurium (Pd–Te) system, Intermetallics 19, 621-629 (2011).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1007/bf02645383](https://doi.org/10.1007/bf02645383) H Okamoto, The pd-te system (palladium-tellurium), JPE 13, 73-78 (1992).  
_cited as the source of values for this phase_
- [doi:10.1016/0022-5088(77)90004-2](https://doi.org/10.1016/0022-5088%2877%2990004-2) P. Matković, K. Schubert, Kristallstruktur von pd3Te2, Journal of the Less Common Metals 52, 217-220 (1977).  
_cited as the source of values for this phase_
- [doi:10.1016/0022-5088(86)90134-7](https://doi.org/10.1016/0022-5088%2886%2990134-7) G. Chattopadhyay, Y.J. Bhatt, S.K. Khera, Phase diagram of the PdTe system, Journal of the Less Common Metals 123, 251-266 (1986).  
_cited as the source of values for this phase_

## PD7TE3 (Pd–Te)

- Id: `phase:pd-te:pd7te3`; status `needs_review`
- No structure assigned. Why: no_on_hull_entry_in_both; no_structure_token; sgte_mmc2_row_incomplete
- Candidate (literature_printed): (Pd7Te3) · ? — printed with a label mapped to this phase
- Candidate (sgte_mmc2): (Pd7Te3) — Hallstedt 2025 mmc2 row for PD7TE3: Pd7Te3
- Stoichiometry: Pd 0.7000, Te 0.3000
- Stability: stable in 1 of 1 calculated diagram(s): 300–766.27 K, x(Te) 0.3–0.3
- Literature: 7 values (7 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:pd-te:pd7te3)

Names (3): _corpus: _corpus:phase:pd-te:pd7te3  
_paper: _paper:10.1016/j.intermet.2010.12.014:Pd7Te3  
_tdb: _tdb:PdTe-11Gos.tdb:PD7TE3  


### TDB models of PD7TE3 (1): PHASE and CONSTITUENT statements as written

[PdTe-11Gos.tdb](https://orchid-project.org/data/databases/sgte-binary/PdTe-11Gos.tdb): PD7TE3, type code %, sha256 `634f4b0ee7ceb0be…`

~~~~text
74: PHASE PD7TE3 % 2 7 3 !
75: CONST PD7TE3 : PD : TE : !
~~~~

Example references (3 of 3; assessments first): 

- [doi:10.1016/j.intermet.2010.12.014](https://doi.org/10.1016/j.intermet.2010.12.014) S. Gossé, C. Guéneau, Thermodynamic assessment of the palladium–tellurium (Pd–Te) system, Intermetallics 19, 621-629 (2011).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1007/bf02645383](https://doi.org/10.1007/bf02645383) H Okamoto, The pd-te system (palladium-tellurium), JPE 13, 73-78 (1992).  
_cited as the source of values for this phase_
- [doi:10.1016/0022-5088(86)90134-7](https://doi.org/10.1016/0022-5088%2886%2990134-7) G. Chattopadhyay, Y.J. Bhatt, S.K. Khera, Phase diagram of the PdTe system, Journal of the Less Common Metals 123, 251-266 (1986).  
_cited as the source of values for this phase_

## PD8TE3 (Pd–Te)

- Id: `phase:pd-te:pd8te3`; status `needs_review`
- No structure assigned. Why: no_structure_token; off_stoichiometric_model; sgte_mmc2_row_incomplete
- Candidate (literature_printed): (Pd8Te3) · oP\* — printed with a label mapped to this phase
- Candidate (sgte_mmc2): (Pd8Te3) — Hallstedt 2025 mmc2 row for PD8TE3: Pd8Te3
- Stability: stable in 1 of 1 calculated diagram(s): 836.73–1254.73 K, x(Te) 0.27364–0.30244
- Literature: 14 values (14 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:pd-te:pd8te3)

Names (3): _corpus: _corpus:phase:pd-te:pd8te3  
_paper: _paper:10.1016/j.intermet.2010.12.014:Pd8Te3  
_tdb: _tdb:PdTe-11Gos.tdb:PD8TE3  


### TDB models of PD8TE3 (1): PHASE and CONSTITUENT statements as written

[PdTe-11Gos.tdb](https://orchid-project.org/data/databases/sgte-binary/PdTe-11Gos.tdb): PD8TE3, type code %, sha256 `634f4b0ee7ceb0be…`

~~~~text
69: PHASE PD8TE3 % 2 8 3 !
70: CONST PD8TE3 : PD% TE : TE : !
~~~~

Example references (4 of 4; assessments first): 

- [doi:10.1016/j.intermet.2010.12.014](https://doi.org/10.1016/j.intermet.2010.12.014) S. Gossé, C. Guéneau, Thermodynamic assessment of the palladium–tellurium (Pd–Te) system, Intermetallics 19, 621-629 (2011).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1007/bf02645383](https://doi.org/10.1007/bf02645383) H Okamoto, The pd-te system (palladium-tellurium), JPE 13, 73-78 (1992).  
_cited as the source of values for this phase_
- [doi:10.1016/0022-5088(86)90134-7](https://doi.org/10.1016/0022-5088%2886%2990134-7) G. Chattopadhyay, Y.J. Bhatt, S.K. Khera, Phase diagram of the PdTe system, Journal of the Less Common Metals 123, 251-266 (1986).  
_cited as the source of values for this phase_
- [doi:10.1515/ijmr-1978-690510](https://doi.org/10.1515/ijmr-1978-690510) Bhan S, Kudielka H. Ordered BCC-phases at high temperatures in alloys of transition metals and B-subgroup elements. Z Metallkd 1978;69: 333e6.  
_cited as the source of values for this phase_

## PD9TE4 (Pd–Te)

- Id: `phase:pd-te:pd9te4`; status `assigned`
- Structure: Pd9Te4 · mP52 · P2_1/c (14); type `st:pd9te4-mp52`; 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_oqmd, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
- Stoichiometry: Pd 0.6923, Te 0.3077
- Stability: stable in 1 of 1 calculated diagram(s): 745.79–882.96 K, x(Te) 0.30769–0.30769
- Literature: 13 values (13 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:pd-te:pd9te4)

Names (3): _corpus: _corpus:phase:pd-te:pd9te4  
_paper: _paper:10.1016/j.intermet.2010.12.014:Pd9Te4  
_tdb: _tdb:PdTe-11Gos.tdb:PD9TE4  


### TDB models of PD9TE4 (1): PHASE and CONSTITUENT statements as written

[PdTe-11Gos.tdb](https://orchid-project.org/data/databases/sgte-binary/PdTe-11Gos.tdb): PD9TE4, type code %, sha256 `634f4b0ee7ceb0be…`

~~~~text
79: PHASE PD9TE4 % 2 9 4 !
80: CONST PD9TE4 : PD : TE : !
~~~~

Example references (4 of 4; assessments first): 

- [doi:10.1016/j.intermet.2010.12.014](https://doi.org/10.1016/j.intermet.2010.12.014) S. Gossé, C. Guéneau, Thermodynamic assessment of the palladium–tellurium (Pd–Te) system, Intermetallics 19, 621-629 (2011).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1007/bf02645383](https://doi.org/10.1007/bf02645383) H Okamoto, The pd-te system (palladium-tellurium), JPE 13, 73-78 (1992).  
_cited as the source of values for this phase_
- [doi:10.1016/0022-5088(78)90205-9](https://doi.org/10.1016/0022-5088%2878%2990205-9) P Matković, K Schubert, Kristallstruktur von Pd9Te4, Journal of the Less Common Metals 58, P39-P46 (1978).  
_cited as the source of values for this phase_
- [doi:10.1016/0022-5088(86)90134-7](https://doi.org/10.1016/0022-5088%2886%2990134-7) G. Chattopadhyay, Y.J. Bhatt, S.K. Khera, Phase diagram of the PdTe system, Journal of the Less Common Metals 123, 251-266 (1986).  
_cited as the source of values for this phase_

## PDTE_PDTE2 (Pd–Te)

- Id: `phase:pd-te:pdte-pdte2`; status `needs_review`
- No structure assigned. Why: no_structure_token; off_stoichiometric_model; sgte_mmc2_rows_disagree
- Candidate (dft_mp): P-3m1 (164) — on-hull MP Te2Pd at x(TE)=0.6667
- Candidate (dft_mp): P6_3/mmc (194) — on-hull MP TePd at x(TE)=0.5000
- Candidate (dft_oqmd): P-3m1 (164) — on-hull OQMD Pd1 Te2 at x(TE)=0.6667
- Candidate (literature_printed): CdI2 · hP3 — printed with a label mapped to this phase
- Candidate (sgte_mmc2): NiAs · B8_1 · hP4 · P6_3/mmc (194) — Hallstedt 2025 mmc2 row for PDTE_PDTE2: PdTe (see also CdI2)
- Candidate (sgte_mmc2): CdI2 · C6 · hP3 · P-3m1 (164) — Hallstedt 2025 mmc2 row for PDTE_PDTE2: PdTe2 (see also NiAs)
- Candidate (tdb_comment): CdI2 · hP3 · P-3m1 — PdTe-11Gos.tdb: 'Prototype CdI2 (hP3, P-3m1), PdTe2'
- Candidate (tdb_comment): NiAs · hP4 · P6_3/mmc — PdTe-11Gos.tdb: 'Prototype NiAs (hP4, P6_3/mmc), PdTe'
- Stability: stable in 1 of 1 calculated diagram(s): 300–1042.88 K, x(Te) 0.5–0.66667
- Literature: 10 values (10 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:pd-te:pdte-pdte2)

Names (4): _corpus: _corpus:phase:pd-te:pdte-pdte2  
_paper: _paper:10.1016/j.intermet.2010.12.014:PdTe, paper:10.1016/j.intermet.2010.12.014:PdTe2  
_tdb: _tdb:PdTe-11Gos.tdb:PDTE_PDTE2  


### TDB models of PDTE_PDTE2 (1): PHASE and CONSTITUENT statements as written

[PdTe-11Gos.tdb](https://orchid-project.org/data/databases/sgte-binary/PdTe-11Gos.tdb): PDTE_PDTE2, type code %, sha256 `634f4b0ee7ceb0be…`

~~~~text
90: PHASE PDTE_PDTE2 % 3 1 1 2 !
91: CONST PDTE_PDTE2 : PD : PD VA : TE : !
~~~~

Example references (3 of 3; assessments first): 

- [doi:10.1016/j.intermet.2010.12.014](https://doi.org/10.1016/j.intermet.2010.12.014) S. Gossé, C. Guéneau, Thermodynamic assessment of the palladium–tellurium (Pd–Te) system, Intermetallics 19, 621-629 (2011).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1007/bf02645383](https://doi.org/10.1007/bf02645383) H Okamoto, The pd-te system (palladium-tellurium), JPE 13, 73-78 (1992).  
_cited as the source of values for this phase_
- [doi:10.1016/0022-5088(86)90134-7](https://doi.org/10.1016/0022-5088%2886%2990134-7) G. Chattopadhyay, Y.J. Bhatt, S.K. Khera, Phase diagram of the PdTe system, Journal of the Less Common Metals 123, 251-266 (1986).  
_cited as the source of values for this phase_

## Please cite

- R. Arróyave, J. Saal, D. Shin, ORCHID-Registry: phase registry of binary systems (version 2026.10; Version 1, machine-extracted), Zenodo (2026). https://doi.org/10.5281/zenodo.23735970
- R. Arróyave, J. Saal, D. Shin, ORCHID data: umbrella record of the ORCHID datasets (version 2026.10; Version 1, machine-extracted), Zenodo (2026). https://doi.org/10.5281/zenodo.23736065

Also cite B. Hallstedt, The SGTE collection of binary datasets, Calphad 89 (2025) 102833, https://doi.org/10.1016/j.calphad.2025.102833 (CC BY 4.0), and the original assessment named in each file; A. Jain et al., The Materials Project: A materials genome approach to accelerating materials innovation, APL Materials 1 (2013) 011002, https://doi.org/10.1063/1.4812323 (CC BY 4.0); J. E. Saal et al., JOM 65 (2013) 1501, https://doi.org/10.1007/s11837-013-0755-4 and S. Kirklin et al., npj Comput. Mater. 1 (2015) 15010, https://doi.org/10.1038/npjcompumats.2015.10 (CC BY 4.0); the original source of every value you use (paper_citation / paper_doi, and cited_dois for values the paper cites from earlier work).

Version 1, machine-extracted: values were read by language-model readers constrained to quote their source and checked automatically, and the release was then audited on the printed pages by adversarial audits, an independent second review of fit-facing records and a preliminary human review of a frozen sample. Flags such as accepted and ESPEI-ready record screening results, not certification; known issues are listed in the release notes.

```bibtex
@misc{orchid_phase_registry_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Registry: phase registry of binary systems}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735970},
  url       = {https://doi.org/10.5281/zenodo.23735970},
  note      = {Version 1, machine-extracted}
}

@misc{orchid_data_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID data: umbrella record of the ORCHID datasets}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23736065},
  url       = {https://doi.org/10.5281/zenodo.23736065},
  note      = {Version 1, machine-extracted}
}
```

---

Derived data CC BY 4.0 ([licence](https://creativecommons.org/licenses/by/4.0/)): cite the ORCHID phase registry and the sources named on the page (TDB assessments, Hallstedt 2025, Materials Project, OQMD). TDB statements are quoted as written; parameter expressions are not reproduced. Field reference: [SCHEMA.md](https://data.orchid-project.org/phases/SCHEMA.md). Machine-readable guide: [llms.txt](https://data.orchid-project.org/llms.txt).