Dy–Ge phases
14 phases (tier A 6, tier C 2, liquid 1, needs_review 5); 13 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 · full JSON · Dy–Ge system page · Markdown · field reference
| Phase | Structure | Basis | Stability (calculated) | Literature values | TDB models |
|---|---|---|---|---|---|
| DIAMOND_A4 phase:dy-ge: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(Ge) 1–1 | 0 | 1 |
| BCC_A2 phase:dy-ge:bcc-a2 | W · A2 · cI2 · Im-3m (229) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 1654.16–1757.91 K, x(Ge) 0–0 | 0 | 1 |
| DY2GE3_BETA phase:dy-ge:dy2ge3-beta | needs_review | stable in 1 of 1 calculated diagram(s): 1163.85–1550 K, x(Ge) 0.6–0.6 | 0 | 1 | |
| DY2GE3_C32 phase:dy-ge:dy2ge3-c32 | needs_review | stable in 1 of 1 calculated diagram(s): 300–1163.85 K, x(Ge) 0.6–0.6 | 0 | 1 | |
| DY2GE3_GAMMA phase:dy-ge:dy2ge3-gamma | needs_review | stable in 1 of 1 calculated diagram(s): 1550–1677.55 K, x(Ge) 0.6–0.6 | 0 | 1 | |
| DY3GE5 phase:dy-ge:dy3ge5 | needs_review | stable in 1 of 1 calculated diagram(s): 300–1236.24 K, x(Ge) 0.61962–0.61962 | 0 | 1 | |
| DY5GE3_D88 phase:dy-ge:dy5ge3-d88 | Mn5Si3 · D8_8 · hP16 · P6_3/mcm (193) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–2098.14 K, x(Ge) 0.35154–0.375 | 0 | 1 |
| DY5GE4 phase:dy-ge:dy5ge4 | Ge4Sm5 · oP36 · Pnma (62) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 1 of 1 calculated diagram(s): 300–1847.97 K, x(Ge) 0.44444–0.44444 | 0 | 1 |
| DYGE_B33 phase:dy-ge:dyge-b33 | CrB · B33 · oC8 · Cmcm (63) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–1803.33 K, x(Ge) 0.5–0.5 | 0 | 1 |
| DYGE2 phase:dy-ge:dyge2 | Ge2Tb · oC24 · Cmmm (65) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 1 of 1 calculated diagram(s): 300–1234.68 K, x(Ge) 0.66667–0.66667 | 0 | 1 |
| DYGE3 phase:dy-ge:dyge3 | needs_review | stable in 1 of 1 calculated diagram(s): 300–1161.14 K, x(Ge) 0.73974–0.73974 | 0 | 1 | |
| FCC_A1 phase:dy-ge: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-ge:hcp-a3 | Mg · A3 · hP2 · P6_3/mmc (194) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–1654.16 K, x(Ge) 0–1e-05 | 0 | 1 |
| LIQUID phase:dy-ge:liquid | liquid | liquid | stable in 1 of 1 calculated diagram(s): 1132.48–2500 K, x(Ge) 0–1 | 0 | 1 |
DIAMOND_A4 (Dy–Ge)
- Id:
phase:dy-ge:a4-diamond; statusassigned - 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(Ge) 1–1
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: phase registry entry
Names (2): corpus: corpus:phase:dy-ge:a4-diamond
tdb: tdb:DyGe-18Ach.tdb:DIAMOND_A4
TDB models of DIAMOND_A4 (1): PHASE and CONSTITUENT statements as written
DyGe-18Ach.tdb: DIAMOND_A4, type code %, sha256 469ad83fd3df334e…
54: PHASE DIAMOND_A4 % 1 1 ! 55: CONST DIAMOND_A4 : GE : !
Example references (1 of 1; assessments first):
- doi:10.1016/j.calphad.2018.05.001 K. Achgar, N. Selhaoui, A. Iddaoudi, R. Tamim, H. Azza, L. Bouirden, Calphad, 62, 18-29(2018).
assessment that models this phase
BCC_A2 (Dy–Ge)
- Id:
phase:dy-ge:bcc-a2; statusassigned - 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): 1654.16–1757.91 K, x(Ge) 0–0
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: phase registry entry
Names (2): corpus: corpus:phase:dy-ge:bcc-a2
tdb: tdb:DyGe-18Ach.tdb:BCC_A2
TDB models of BCC_A2 (1): PHASE and CONSTITUENT statements as written
DyGe-18Ach.tdb: BCC_A2, type code %B, sha256 469ad83fd3df334e…
44: PHASE BCC_A2 %B 2 1 3 ! 45: CONST BCC_A2 : DY% GE : VA : !
Example references (1 of 1; assessments first):
- doi:10.1016/j.calphad.2018.05.001 K. Achgar, N. Selhaoui, A. Iddaoudi, R. Tamim, H. Azza, L. Bouirden, Calphad, 62, 18-29(2018).
assessment that models this phase
DY2GE3_BETA (Dy–Ge)
- Id:
phase:dy-ge:dy2ge3-beta; statusneeds_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): (Dy2Ge3-beta) — Hallstedt 2025 mmc2 row for DY2GE3_BETA: Dy2Ge3 (medium T)
- Stoichiometry: Dy 0.4000, Ge 0.6000
- Stability: stable in 1 of 1 calculated diagram(s): 1163.85–1550 K, x(Ge) 0.6–0.6
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: phase registry entry
Names (2): corpus: corpus:phase:dy-ge:dy2ge3-beta
tdb: tdb:DyGe-18Ach.tdb:DY2GE3_BETA
TDB models of DY2GE3_BETA (1): PHASE and CONSTITUENT statements as written
DyGe-18Ach.tdb: DY2GE3_BETA, type code %, sha256 469ad83fd3df334e…
79: PHASE DY2GE3_BETA % 2 2 3 ! 80: CONST DY2GE3_BETA : DY : GE : !
Example references (1 of 1; assessments first):
- doi:10.1016/j.calphad.2018.05.001 K. Achgar, N. Selhaoui, A. Iddaoudi, R. Tamim, H. Azza, L. Bouirden, Calphad, 62, 18-29(2018).
assessment that models this phase
DY2GE3_C32 (Dy–Ge)
- Id:
phase:dy-ge:dy2ge3-c32; statusneeds_review - No structure assigned. Why: assessment_declared_blocked_by:stoichiometry_contradicts_C32; stoichiometry_contradicts_C32:DyGe-18Ach.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 DY2GE3_C32: Dy2Ge3 (low T)
- Candidate (tdb_comment): AlB2 · hP3 · P6/mmm — DyGe-18Ach.tdb: 'Prototype AlB2 (hP3, P6/mmm)'
- Stoichiometry: Dy 0.4000, Ge 0.6000
- Stability: stable in 1 of 1 calculated diagram(s): 300–1163.85 K, x(Ge) 0.6–0.6
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: phase registry entry
Names (2): corpus: corpus:phase:dy-ge:dy2ge3-c32
tdb: tdb:DyGe-18Ach.tdb:DY2GE3_C32
TDB models of DY2GE3_C32 (1): PHASE and CONSTITUENT statements as written
DyGe-18Ach.tdb: DY2GE3_C32, type code %, sha256 469ad83fd3df334e…
74: PHASE DY2GE3_C32 % 2 2 3 ! 75: CONST DY2GE3_C32 : DY : GE : !
Example references (1 of 1; assessments first):
- doi:10.1016/j.calphad.2018.05.001 K. Achgar, N. Selhaoui, A. Iddaoudi, R. Tamim, H. Azza, L. Bouirden, Calphad, 62, 18-29(2018).
assessment that models this phase
DY2GE3_GAMMA (Dy–Ge)
- Id:
phase:dy-ge:dy2ge3-gamma; statusneeds_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): (Dy2Ge3-gamma) — Hallstedt 2025 mmc2 row for DY2GE3_GAMMA: Dy2Ge3 (high T)
- Stoichiometry: Dy 0.4000, Ge 0.6000
- Stability: stable in 1 of 1 calculated diagram(s): 1550–1677.55 K, x(Ge) 0.6–0.6
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: phase registry entry
Names (2): corpus: corpus:phase:dy-ge:dy2ge3-gamma
tdb: tdb:DyGe-18Ach.tdb:DY2GE3_GAMMA
TDB models of DY2GE3_GAMMA (1): PHASE and CONSTITUENT statements as written
DyGe-18Ach.tdb: DY2GE3_GAMMA, type code %, sha256 469ad83fd3df334e…
84: PHASE DY2GE3_GAMMA % 2 2 3 ! 85: CONST DY2GE3_GAMMA : DY : GE : !
Example references (1 of 1; assessments first):
- doi:10.1016/j.calphad.2018.05.001 K. Achgar, N. Selhaoui, A. Iddaoudi, R. Tamim, H. Azza, L. Bouirden, Calphad, 62, 18-29(2018).
assessment that models this phase
DY3GE5 (Dy–Ge)
- Id:
phase:dy-ge:dy3ge5; statusneeds_review - No structure assigned. Why: assessment_declared_compound_differs_from_model_composition; no_on_hull_entry_in_both; no_structure_token
- Candidate (sgte_mmc2): Ge5Y3 · oF64 · Fdd2 (43) — Hallstedt 2025 mmc2 row for DY3GE5: Dy3Ge5
- Candidate (tdb_comment): Ge5Y3 · oF64 · Fdd2 — DyGe-18Ach.tdb: 'Prototype Ge5Y3 (oF64, Fdd2)'
- Stoichiometry: Dy 0.3804, Ge 0.6196
- Stability: stable in 1 of 1 calculated diagram(s): 300–1236.24 K, x(Ge) 0.61962–0.61962
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: phase registry entry
Names (2): corpus: corpus:phase:dy-ge:dy3ge5
tdb: tdb:DyGe-18Ach.tdb:DY3GE5
TDB models of DY3GE5 (1): PHASE and CONSTITUENT statements as written
DyGe-18Ach.tdb: DY3GE5, type code %, sha256 469ad83fd3df334e…
89: PHASE DY3GE5 % 2 0.380 0.619 ! 90: CONST DY3GE5 : DY : GE : !
Example references (1 of 1; assessments first):
- doi:10.1016/j.calphad.2018.05.001 K. Achgar, N. Selhaoui, A. Iddaoudi, R. Tamim, H. Azza, L. Bouirden, Calphad, 62, 18-29(2018).
assessment that models this phase
DY5GE3_D88 (Dy–Ge)
- Id:
phase:dy-ge:dy5ge3-d88; statusassigned - Structure: Mn5Si3 · D8_8 · hP16 · P6_3/mcm (193); type
st:d8-8-mn5si3-hp16; tier A: standard phase name; confidence high - Stability: stable in 1 of 1 calculated diagram(s): 300–2098.14 K, x(Ge) 0.35154–0.375
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: phase registry entry
Names (2): corpus: corpus:phase:dy-ge:dy5ge3-d88
tdb: tdb:DyGe-18Ach.tdb:DY5GE3_D88
TDB models of DY5GE3_D88 (1): PHASE and CONSTITUENT statements as written
DyGe-18Ach.tdb: DY5GE3_D88, type code %, sha256 469ad83fd3df334e…
59: PHASE DY5GE3_D88 % 2 5 3 ! 60: CONST DY5GE3_D88 : DY : DY GE% : !
Example references (1 of 1; assessments first):
- doi:10.1016/j.calphad.2018.05.001 K. Achgar, N. Selhaoui, A. Iddaoudi, R. Tamim, H. Azza, L. Bouirden, Calphad, 62, 18-29(2018).
assessment that models this phase
DY5GE4 (Dy–Ge)
- Id:
phase:dy-ge:dy5ge4; statusassigned - 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
- 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, Ge 0.4444
- Stability: stable in 1 of 1 calculated diagram(s): 300–1847.97 K, x(Ge) 0.44444–0.44444
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: phase registry entry
Names (2): corpus: corpus:phase:dy-ge:dy5ge4
tdb: tdb:DyGe-18Ach.tdb:DY5GE4
TDB models of DY5GE4 (1): PHASE and CONSTITUENT statements as written
DyGe-18Ach.tdb: DY5GE4, type code %, sha256 469ad83fd3df334e…
64: PHASE DY5GE4 % 2 5 4 ! 65: CONST DY5GE4 : DY : GE : !
Example references (1 of 1; assessments first):
- doi:10.1016/j.calphad.2018.05.001 K. Achgar, N. Selhaoui, A. Iddaoudi, R. Tamim, H. Azza, L. Bouirden, Calphad, 62, 18-29(2018).
assessment that models this phase
DYGE_B33 (Dy–Ge)
- Id:
phase:dy-ge:dyge-b33; statusassigned - Structure: CrB · B33 · oC8 · Cmcm (63); type
st:b33-crb-oc8; tier A: standard phase name; confidence high - Caveat: DFT agrees: on-hull mp-aaaabdty and oqmd-7944, space group 63
- Stoichiometry: Dy 0.5000, Ge 0.5000
- Stability: stable in 1 of 1 calculated diagram(s): 300–1803.33 K, x(Ge) 0.5–0.5
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: phase registry entry
Names (4): corpus: corpus:phase:dy-ge:dyge-b33
mp: mp:mp-aaaabdty
oqmd: oqmd:oqmd-7944
tdb: tdb:DyGe-18Ach.tdb:DYGE_B33
TDB models of DYGE_B33 (1): PHASE and CONSTITUENT statements as written
DyGe-18Ach.tdb: DYGE_B33, type code %, sha256 469ad83fd3df334e…
69: PHASE DYGE_B33 % 2 1 1 ! 70: CONST DYGE_B33 : DY : GE : !
Example references (1 of 1; assessments first):
- doi:10.1016/j.calphad.2018.05.001 K. Achgar, N. Selhaoui, A. Iddaoudi, R. Tamim, H. Azza, L. Bouirden, Calphad, 62, 18-29(2018).
assessment that models this phase
DYGE2 (Dy–Ge)
- Id:
phase:dy-ge:dyge2; statusassigned - Structure: Ge2Tb · oC24 · Cmmm (65); type
st:ge2tb-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
- 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 0.3333, Ge 0.6667
- Stability: stable in 1 of 1 calculated diagram(s): 300–1234.68 K, x(Ge) 0.66667–0.66667
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: phase registry entry
Names (2): corpus: corpus:phase:dy-ge:dyge2
tdb: tdb:DyGe-18Ach.tdb:DYGE2
TDB models of DYGE2 (1): PHASE and CONSTITUENT statements as written
DyGe-18Ach.tdb: DYGE2, type code %, sha256 469ad83fd3df334e…
94: PHASE DYGE2 % 2 1 2 ! 95: CONST DYGE2 : DY : GE : !
Example references (1 of 1; assessments first):
- doi:10.1016/j.calphad.2018.05.001 K. Achgar, N. Selhaoui, A. Iddaoudi, R. Tamim, H. Azza, L. Bouirden, Calphad, 62, 18-29(2018).
assessment that models this phase
DYGE3 (Dy–Ge)
- Id:
phase:dy-ge:dyge3; statusneeds_review - No structure assigned. Why: assessment_declared_compound_differs_from_model_composition; no_on_hull_entry_in_both; no_structure_token
- Candidate (sgte_mmc2): DyGe3 · oC16 · Cmcm (63) — Hallstedt 2025 mmc2 row for DYGE3: DyGe3
- Candidate (tdb_comment): DyGe3 · oC16 · Cmcm — DyGe-18Ach.tdb: 'Prototype DyGe3 (oC16, Cmcm)'
- Stoichiometry: Dy 0.2603, Ge 0.7397
- Stability: stable in 1 of 1 calculated diagram(s): 300–1161.14 K, x(Ge) 0.73974–0.73974
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: phase registry entry
Names (2): corpus: corpus:phase:dy-ge:dyge3
tdb: tdb:DyGe-18Ach.tdb:DYGE3
TDB models of DYGE3 (1): PHASE and CONSTITUENT statements as written
DyGe-18Ach.tdb: DYGE3, type code %, sha256 469ad83fd3df334e…
99: PHASE DYGE3 % 2 0.260 0.739 ! 100: CONST DYGE3 : DY : GE : !
Example references (1 of 1; assessments first):
- doi:10.1016/j.calphad.2018.05.001 K. Achgar, N. Selhaoui, A. Iddaoudi, R. Tamim, H. Azza, L. Bouirden, Calphad, 62, 18-29(2018).
assessment that models this phase
FCC_A1 (Dy–Ge)
- Id:
phase:dy-ge:fcc-a1; statusassigned - 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
Names (2): corpus: corpus:phase:dy-ge:fcc-a1
tdb: tdb:DyGe-18Ach.tdb:FCC_A1
TDB models of FCC_A1 (1): PHASE and CONSTITUENT statements as written
DyGe-18Ach.tdb: FCC_A1, type code %A, sha256 469ad83fd3df334e…
39: PHASE FCC_A1 %A 2 1 1 ! 40: CONST FCC_A1 : DY GE : VA : !
Example references (1 of 1; assessments first):
- doi:10.1016/j.calphad.2018.05.001 K. Achgar, N. Selhaoui, A. Iddaoudi, R. Tamim, H. Azza, L. Bouirden, Calphad, 62, 18-29(2018).
assessment that models this phase
HCP_A3 (Dy–Ge)
- Id:
phase:dy-ge:hcp-a3; statusassigned - 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): 300–1654.16 K, x(Ge) 0–1e-05
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: phase registry entry
Names (2): corpus: corpus:phase:dy-ge:hcp-a3
tdb: tdb:DyGe-18Ach.tdb:HCP_A3
TDB models of HCP_A3 (1): PHASE and CONSTITUENT statements as written
DyGe-18Ach.tdb: HCP_A3, type code %A, sha256 469ad83fd3df334e…
49: PHASE HCP_A3 %A 2 1 0.5 ! 50: CONST HCP_A3 : DY% GE : VA : !
Example references (1 of 1; assessments first):
- doi:10.1016/j.calphad.2018.05.001 K. Achgar, N. Selhaoui, A. Iddaoudi, R. Tamim, H. Azza, L. Bouirden, Calphad, 62, 18-29(2018).
assessment that models this phase
LIQUID (Dy–Ge)
- Id:
phase:dy-ge:liquid; statusassigned - Structure: liquid; type
st:liquid; liquid; confidence high - Stability: stable in 1 of 1 calculated diagram(s): 1132.48–2500 K, x(Ge) 0–1
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: phase registry entry
Names (2): corpus: corpus:phase:dy-ge:liquid
tdb: tdb:DyGe-18Ach.tdb:LIQUID
TDB models of LIQUID (1): PHASE and CONSTITUENT statements as written
DyGe-18Ach.tdb: LIQUID, type code %, sha256 469ad83fd3df334e…
34: PHASE LIQUID:L % 1 1 ! 35: CONST LIQUID:L : DY GE : !
Example references (1 of 1; assessments first):
- doi:10.1016/j.calphad.2018.05.001 K. Achgar, N. Selhaoui, A. Iddaoudi, R. Tamim, H. Azza, L. Bouirden, Calphad, 62, 18-29(2018).
assessment that models this phase