# Ge–Hf phases

> Ge–Hf system: 11 phases (tier A 8, tier C 2, liquid 1); 10 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/GE-HF.html · Markdown: https://data.orchid-project.org/phases/pages/GE-HF.md

11 phases (tier A 8, tier C 2, liquid 1); 10 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=GE-HF) · [full JSON](https://data.orchid-project.org/phases/systems/GE-HF.json) · [Ge–Hf system page](https://data.orchid-project.org/systems/GE-HF.html) · [Markdown](https://data.orchid-project.org/phases/pages/GE-HF.md) · [field reference](https://data.orchid-project.org/phases/SCHEMA.md)

Table: Phases of the Ge–Hf system (11)

| Phase | Structure | Basis | Stability (calculated) | Literature values | TDB models |
|---|---|---|---|---:|---:|
| [DIAMOND_A4](#phase-ge-hf-a4-diamond); _phase:ge-hf:a4-diamond_ | C (diamond) · A4 · cF8 · Fd-3m (227) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–1211.4 K, x(Hf) 0–0 | 3 | 1 |
| [BCC_A2](#phase-ge-hf-bcc-a2); _phase:ge-hf:bcc-a2_ | W · A2 · cI2 · Im-3m (229) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 2015.94–3999.33 K, x(Hf) 0.99993–1 | 4 | 1 |
| [FCC_A1](#phase-ge-hf-fcc-a1); _phase:ge-hf:fcc-a1_ | Cu · A1 · cF4 · Fm-3m (225) | tier A: standard phase name | not stable in 1 calculated diagram(s) | 0 | 1 |
| [GE2HF_C49](#phase-ge-hf-ge2hf-c49); _phase:ge-hf:ge2hf-c49_ | ZrSi2 · C49 · oC12 · Cmcm (63) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–2022.59 K, x(Hf) 0.33333–0.33333 | 5 | 1 |
| [GE2HF3_D5A](#phase-ge-hf-ge2hf3-d5a); _phase:ge-hf:ge2hf3-d5a_ | Si2U3 · D5_a · tP10 · P4/mbm (127) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 1514.4–2433.25 K, x(Hf) 0.6–0.6 | 6 | 1 |
| [GE3HF5_D88](#phase-ge-hf-ge3hf5-d88); _phase:ge-hf:ge3hf5-d88_ | Mn5Si3 · D8_8 · hP16 · P6_3/mcm (193) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–2466.19 K, x(Hf) 0.625–0.625 | 8 | 1 |
| [GE4HF5](#phase-ge-hf-ge4hf5); _phase:ge-hf:ge4hf5_ | Ge4Sm5 · oP36 · Pnma (62) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 1 of 1 calculated diagram(s): 300–2415.3 K, x(Hf) 0.55556–0.55556 | 6 | 1 |
| [GEHF2_C16](#phase-ge-hf-gehf2-c16); _phase:ge-hf:gehf2-c16_ | Al2Cu · C16 · tI12 · I4/mcm (140) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–2294.83 K, x(Hf) 0.66667–0.66667 | 4 | 1 |
| [GEHF3](#phase-ge-hf-gehf3); _phase:ge-hf:gehf3_ | Ti3P · tP32 · P4_2/n (86) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 1 of 1 calculated diagram(s): 300–2257.18 K, x(Hf) 0.75–0.75 | 6 | 1 |
| [HCP_A3](#phase-ge-hf-hcp-a3); _phase:ge-hf:hcp-a3_ | Mg · A3 · hP2 · P6_3/mmc (194) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–2015.94 K, x(Hf) 0.99996–1 | 2 | 1 |
| [LIQUID](#phase-ge-hf-liquid); _phase:ge-hf:liquid_ | liquid | liquid | stable in 1 of 1 calculated diagram(s): 1206.82–4000 K, x(Hf) 0–1 | 18 | 1 |

## DIAMOND_A4 (Ge–Hf)

- Id: `phase:ge-hf: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: Ge 1.0000
- Stability: stable in 1 of 1 calculated diagram(s): 300–1211.4 K, x(Hf) 0–0
- Literature: 3 values (3 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ge-hf:a4-diamond)

Names (4): _corpus: _corpus:phase:ge-hf:a4-diamond, corpus:phase:ge-hf:diamond-a4  
_paper: _paper:10.1007/s10853-013-7814-7:(Ge)  
_tdb: _tdb:GeHf-14Tan.tdb:DIAMOND_A4  


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

[GeHf-14Tan.tdb](https://orchid-project.org/data/databases/sgte-binary/GeHf-14Tan.tdb): DIAMOND_A4, type code %, sha256 `574342ac8bd9d16b…`

~~~~text
47: PHASE DIAMOND_A4 % 1 1 !
48: CONST DIAMOND_A4 : GE : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1007/s10853-013-7814-7](https://doi.org/10.1007/s10853-013-7814-7) Ying Tang, Biao Hu, Jiong Wang, Yong Du, Kaiming Cheng, Dandan Liu et al., Experimental investigation and thermodynamic assessment of the Hf–Ge system, J Mater Sci 49, 1306-1316 (2014).  
_assessment that models this phase; reports values for this phase_

## BCC_A2 (Ge–Hf)

- Id: `phase:ge-hf: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): 2015.94–3999.33 K, x(Hf) 0.99993–1
- Literature: 4 values (4 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ge-hf:bcc-a2)

Names (3): _corpus: _corpus:phase:ge-hf:bcc-a2  
_paper: _paper:10.1007/s10853-013-7814-7:(βHf)  
_tdb: _tdb:GeHf-14Tan.tdb:BCC_A2  


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

[GeHf-14Tan.tdb](https://orchid-project.org/data/databases/sgte-binary/GeHf-14Tan.tdb): BCC_A2, type code %B, sha256 `574342ac8bd9d16b…`

~~~~text
37: PHASE BCC_A2 %B 2 1 3 !
38: CONST BCC_A2 : GE HF% : VA : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1007/s10853-013-7814-7](https://doi.org/10.1007/s10853-013-7814-7) Ying Tang, Biao Hu, Jiong Wang, Yong Du, Kaiming Cheng, Dandan Liu et al., Experimental investigation and thermodynamic assessment of the Hf–Ge system, J Mater Sci 49, 1306-1316 (2014).  
_assessment that models this phase; reports values for this phase_

## FCC_A1 (Ge–Hf)

- Id: `phase:ge-hf: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:ge-hf:fcc-a1)

Names (2): _corpus: _corpus:phase:ge-hf:fcc-a1  
_tdb: _tdb:GeHf-14Tan.tdb:FCC_A1  


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

[GeHf-14Tan.tdb](https://orchid-project.org/data/databases/sgte-binary/GeHf-14Tan.tdb): FCC_A1, type code %A, sha256 `574342ac8bd9d16b…`

~~~~text
32: PHASE FCC_A1 %A 2 1 1 !
33: CONST FCC_A1 : GE HF : VA : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1007/s10853-013-7814-7](https://doi.org/10.1007/s10853-013-7814-7) Ying Tang, Biao Hu, Jiong Wang, Yong Du, Kaiming Cheng, Dandan Liu et al., Experimental investigation and thermodynamic assessment of the Hf–Ge system, J Mater Sci 49, 1306-1316 (2014).  
_assessment that models this phase_

## GE2HF_C49 (Ge–Hf)

- Id: `phase:ge-hf:ge2hf-c49`; status `assigned`
- Structure: ZrSi2 · C49 · oC12 · Cmcm (63); type `st:c49-zrsi2-oc12`; tier A: standard phase name; confidence high
- Caveat: DFT agrees: on-hull mp-aaaaaugh and oqmd-3543, space group 63
- Stoichiometry: Ge 0.6667, Hf 0.3333
- Stability: stable in 1 of 1 calculated diagram(s): 300–2022.59 K, x(Hf) 0.33333–0.33333
- Literature: 5 values (5 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ge-hf:ge2hf-c49)

Names (5): _corpus: _corpus:phase:ge-hf:ge2hf-c49  
_mp: _mp:mp-aaaaaugh  
_oqmd: _oqmd:oqmd-3543  
_paper: _paper:10.1007/s10853-013-7814-7:HfGe2  
_tdb: _tdb:GeHf-14Tan.tdb:GE2HF_C49  


### TDB models of GE2HF_C49 (1): PHASE and CONSTITUENT statements as written

[GeHf-14Tan.tdb](https://orchid-project.org/data/databases/sgte-binary/GeHf-14Tan.tdb): GE2HF_C49, type code %, sha256 `574342ac8bd9d16b…`

~~~~text
52: PHASE GE2HF_C49 % 2 2 1 !
53: CONST GE2HF_C49 : GE : HF : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1007/s10853-013-7814-7](https://doi.org/10.1007/s10853-013-7814-7) Ying Tang, Biao Hu, Jiong Wang, Yong Du, Kaiming Cheng, Dandan Liu et al., Experimental investigation and thermodynamic assessment of the Hf–Ge system, J Mater Sci 49, 1306-1316 (2014).  
_assessment that models this phase; reports values for this phase_

## GE2HF3_D5A (Ge–Hf)

- Id: `phase:ge-hf:ge2hf3-d5a`; status `assigned`
- Structure: Si2U3 · D5_a · tP10 · P4/mbm (127); type `st:d5-a-si2u3-tp10`; tier A: standard phase name; confidence high
- Caveat: DFT agrees: on-hull mp-aaacdoez and oqmd-30438, space group 127
- Stoichiometry: Ge 0.4000, Hf 0.6000
- Stability: stable in 1 of 1 calculated diagram(s): 1514.4–2433.25 K, x(Hf) 0.6–0.6
- Literature: 6 values (6 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ge-hf:ge2hf3-d5a)

Names (5): _corpus: _corpus:phase:ge-hf:ge2hf3-d5a  
_mp: _mp:mp-aaacdoez  
_oqmd: _oqmd:oqmd-30438  
_paper: _paper:10.1007/s10853-013-7814-7:Hf3Ge2  
_tdb: _tdb:GeHf-14Tan.tdb:GE2HF3_D5A  


### TDB models of GE2HF3_D5A (1): PHASE and CONSTITUENT statements as written

[GeHf-14Tan.tdb](https://orchid-project.org/data/databases/sgte-binary/GeHf-14Tan.tdb): GE2HF3_D5A, type code %, sha256 `574342ac8bd9d16b…`

~~~~text
62: PHASE GE2HF3_D5A % 2 2 3 !
63: CONST GE2HF3_D5A : GE : HF : !
~~~~

Example references (2 of 2; assessments first): 

- [doi:10.1007/s10853-013-7814-7](https://doi.org/10.1007/s10853-013-7814-7) Ying Tang, Biao Hu, Jiong Wang, Yong Du, Kaiming Cheng, Dandan Liu et al., Experimental investigation and thermodynamic assessment of the Hf–Ge system, J Mater Sci 49, 1306-1316 (2014).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1007/bf03029294](https://doi.org/10.1007/bf03029294) Gokhale AB, Abbaschian R (1990) Bull Alloy Phase Diagr 11(3):253  
_cited as the source of values for this phase_

## GE3HF5_D88 (Ge–Hf)

- Id: `phase:ge-hf:ge3hf5-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
- Stoichiometry: Ge 0.3750, Hf 0.6250
- Stability: stable in 1 of 1 calculated diagram(s): 300–2466.19 K, x(Hf) 0.625–0.625
- Literature: 8 values (8 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ge-hf:ge3hf5-d88)

Names (3): _corpus: _corpus:phase:ge-hf:ge3hf5-d88  
_paper: _paper:10.1007/s10853-013-7814-7:Hf5Ge3  
_tdb: _tdb:GeHf-14Tan.tdb:GE3HF5_D88  


### TDB models of GE3HF5_D88 (1): PHASE and CONSTITUENT statements as written

[GeHf-14Tan.tdb](https://orchid-project.org/data/databases/sgte-binary/GeHf-14Tan.tdb): GE3HF5_D88, type code %, sha256 `574342ac8bd9d16b…`

~~~~text
67: PHASE GE3HF5_D88 % 2 3 5 !
68: CONST GE3HF5_D88 : GE : HF : !
~~~~

Example references (2 of 2; assessments first): 

- [doi:10.1007/s10853-013-7814-7](https://doi.org/10.1007/s10853-013-7814-7) Ying Tang, Biao Hu, Jiong Wang, Yong Du, Kaiming Cheng, Dandan Liu et al., Experimental investigation and thermodynamic assessment of the Hf–Ge system, J Mater Sci 49, 1306-1316 (2014).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1007/bf03029294](https://doi.org/10.1007/bf03029294) Gokhale AB, Abbaschian R (1990) Bull Alloy Phase Diagr 11(3):253  
_cited as the source of values for this phase_

## GE4HF5 (Ge–Hf)

- Id: `phase:ge-hf:ge4hf5`; status `assigned`
- Structure: Ge4Sm5 · oP36 · Pnma (62); type `st:ge4sm5-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 (dft_space_group_62_matches_2_structure_types, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
- Stoichiometry: Ge 0.4444, Hf 0.5556
- Stability: stable in 1 of 1 calculated diagram(s): 300–2415.3 K, x(Hf) 0.55556–0.55556
- Literature: 6 values (6 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ge-hf:ge4hf5)

Names (3): _corpus: _corpus:phase:ge-hf:ge4hf5  
_paper: _paper:10.1007/s10853-013-7814-7:Hf5Ge4  
_tdb: _tdb:GeHf-14Tan.tdb:GE4HF5  


### TDB models of GE4HF5 (1): PHASE and CONSTITUENT statements as written

[GeHf-14Tan.tdb](https://orchid-project.org/data/databases/sgte-binary/GeHf-14Tan.tdb): GE4HF5, type code %, sha256 `574342ac8bd9d16b…`

~~~~text
57: PHASE GE4HF5 % 2 4 5 !
58: CONST GE4HF5 : GE : HF : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1007/s10853-013-7814-7](https://doi.org/10.1007/s10853-013-7814-7) Ying Tang, Biao Hu, Jiong Wang, Yong Du, Kaiming Cheng, Dandan Liu et al., Experimental investigation and thermodynamic assessment of the Hf–Ge system, J Mater Sci 49, 1306-1316 (2014).  
_assessment that models this phase; reports values for this phase_

## GEHF2_C16 (Ge–Hf)

- Id: `phase:ge-hf:gehf2-c16`; status `assigned`
- Structure: Al2Cu · C16 · tI12 · I4/mcm (140); type `st:c16-al2cu-ti12`; tier A: standard phase name; confidence high
- Caveat: DFT agrees: on-hull mp-aaaaaosh and oqmd-7794, space group 140
- Stoichiometry: Ge 0.3333, Hf 0.6667
- Stability: stable in 1 of 1 calculated diagram(s): 300–2294.83 K, x(Hf) 0.66667–0.66667
- Literature: 4 values (4 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ge-hf:gehf2-c16)

Names (5): _corpus: _corpus:phase:ge-hf:gehf2-c16  
_mp: _mp:mp-aaaaaosh  
_oqmd: _oqmd:oqmd-7794  
_paper: _paper:10.1007/s10853-013-7814-7:Hf2Ge  
_tdb: _tdb:GeHf-14Tan.tdb:GEHF2_C16  


### TDB models of GEHF2_C16 (1): PHASE and CONSTITUENT statements as written

[GeHf-14Tan.tdb](https://orchid-project.org/data/databases/sgte-binary/GeHf-14Tan.tdb): GEHF2_C16, type code %, sha256 `574342ac8bd9d16b…`

~~~~text
72: PHASE GEHF2_C16 % 2 1 2 !
73: CONST GEHF2_C16 : GE : HF : !
~~~~

Example references (2 of 2; assessments first): 

- [doi:10.1007/s10853-013-7814-7](https://doi.org/10.1007/s10853-013-7814-7) Ying Tang, Biao Hu, Jiong Wang, Yong Du, Kaiming Cheng, Dandan Liu et al., Experimental investigation and thermodynamic assessment of the Hf–Ge system, J Mater Sci 49, 1306-1316 (2014).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1007/bf03029294](https://doi.org/10.1007/bf03029294) Gokhale AB, Abbaschian R (1990) Bull Alloy Phase Diagr 11(3):253  
_cited as the source of values for this phase_

## GEHF3 (Ge–Hf)

- Id: `phase:ge-hf:gehf3`; status `assigned`
- Structure: Ti3P · tP32 · P4_2/n (86); type `st:ti3p-tp32`; 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: Ge 0.2500, Hf 0.7500
- Stability: stable in 1 of 1 calculated diagram(s): 300–2257.18 K, x(Hf) 0.75–0.75
- Literature: 6 values (6 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ge-hf:gehf3)

Names (3): _corpus: _corpus:phase:ge-hf:gehf3  
_paper: _paper:10.1007/s10853-013-7814-7:Hf3Ge  
_tdb: _tdb:GeHf-14Tan.tdb:GEHF3  


### TDB models of GEHF3 (1): PHASE and CONSTITUENT statements as written

[GeHf-14Tan.tdb](https://orchid-project.org/data/databases/sgte-binary/GeHf-14Tan.tdb): GEHF3, type code %, sha256 `574342ac8bd9d16b…`

~~~~text
77: PHASE GEHF3 % 2 1 3 !
78: CONST GEHF3 : GE : HF : !
~~~~

Example references (2 of 2; assessments first): 

- [doi:10.1007/s10853-013-7814-7](https://doi.org/10.1007/s10853-013-7814-7) Ying Tang, Biao Hu, Jiong Wang, Yong Du, Kaiming Cheng, Dandan Liu et al., Experimental investigation and thermodynamic assessment of the Hf–Ge system, J Mater Sci 49, 1306-1316 (2014).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1007/bf03029294](https://doi.org/10.1007/bf03029294) Gokhale AB, Abbaschian R (1990) Bull Alloy Phase Diagr 11(3):253  
_cited as the source of values for this phase_

## HCP_A3 (Ge–Hf)

- Id: `phase:ge-hf: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): 300–2015.94 K, x(Hf) 0.99996–1
- Literature: 2 values (2 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ge-hf:hcp-a3)

Names (3): _corpus: _corpus:phase:ge-hf:hcp-a3  
_paper: _paper:10.1007/s10853-013-7814-7:(αHf)  
_tdb: _tdb:GeHf-14Tan.tdb:HCP_A3  


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

[GeHf-14Tan.tdb](https://orchid-project.org/data/databases/sgte-binary/GeHf-14Tan.tdb): HCP_A3, type code %, sha256 `574342ac8bd9d16b…`

~~~~text
42: PHASE HCP_A3 % 2 1 0.5 !
43: CONST HCP_A3 : GE HF% : VA : !
~~~~

Example references (1 of 1; assessments first): 

- [doi:10.1007/s10853-013-7814-7](https://doi.org/10.1007/s10853-013-7814-7) Ying Tang, Biao Hu, Jiong Wang, Yong Du, Kaiming Cheng, Dandan Liu et al., Experimental investigation and thermodynamic assessment of the Hf–Ge system, J Mater Sci 49, 1306-1316 (2014).  
_assessment that models this phase; reports values for this phase_

## LIQUID (Ge–Hf)

- Id: `phase:ge-hf:liquid`; status `assigned`
- Structure: liquid; type `st:liquid`; liquid; confidence high
- Stability: stable in 1 of 1 calculated diagram(s): 1206.82–4000 K, x(Hf) 0–1
- Literature: 18 values (18 accepted) from 1 papers
- Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:ge-hf:liquid)

Names (3): _corpus: _corpus:phase:ge-hf:liquid  
_paper: _paper:10.1007/s10853-013-7814-7:Liquid  
_tdb: _tdb:GeHf-14Tan.tdb:LIQUID  


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

[GeHf-14Tan.tdb](https://orchid-project.org/data/databases/sgte-binary/GeHf-14Tan.tdb): LIQUID, type code %, sha256 `574342ac8bd9d16b…`

~~~~text
27: PHASE LIQUID:L % 1 1 !
28: CONST LIQUID:L : GE HF : !
~~~~

Example references (2 of 2; assessments first): 

- [doi:10.1007/s10853-013-7814-7](https://doi.org/10.1007/s10853-013-7814-7) Ying Tang, Biao Hu, Jiong Wang, Yong Du, Kaiming Cheng, Dandan Liu et al., Experimental investigation and thermodynamic assessment of the Hf–Ge system, J Mater Sci 49, 1306-1316 (2014).  
_assessment that models this phase; reports values for this phase_
- [doi:10.1007/bf03029294](https://doi.org/10.1007/bf03029294) Gokhale AB, Abbaschian R (1990) Bull Alloy Phase Diagr 11(3):253  
_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).