Al–Te phases
11 phases (tier A 4, tier C 3, liquid 2, needs_review 2); 9 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 · Al–Te system page · Markdown · field reference
| Phase | Structure | Basis | Stability (calculated) | Literature values | TDB models |
|---|---|---|---|---|---|
| HEXAGONAL_A8 phase:al-te:a8-hexagonal | gamma-Se · A8 · hP3 · P3_121 (152) | tier A: standard phase name | stable in 2 of 2 calculated diagram(s): 300–722.66 K, x(Te) 1–1 | 4 | 2 |
| AL2TE3 phase:al-te:al2te3 | needs_review | stable in 1 of 1 calculated diagram(s): 300–1167.29 K, x(Te) 0.6–0.6 | 5 | 1 | |
| AL2TE3_ALPHA phase:al-te:al2te3-alpha | Al2Te3 · mP240 · P2_1 (4) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 1 of 1 calculated diagram(s): 300–993.15 K, x(Te) 0.6–0.6 | 4 | 1 |
| AL2TE3_BETA phase:al-te:al2te3-beta | Al2Te3 · mP40 · P2_1/c (14) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 1 of 1 calculated diagram(s): 993.15–1165.36 K, x(Te) 0.6–0.6 | 2 | 1 |
| AL2TE5 phase:al-te:al2te5 | Al2Te5 · mC14 · C2/m (12) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 1 of 1 calculated diagram(s): 682.23–735.99 K, x(Te) 0.71429–0.71429 | 10 | 1 |
| ALTE phase:al-te:alte | needs_review | stable in 1 of 1 calculated diagram(s): 300–1128.7 K, x(Te) 0.5–0.5 | 7 | 1 | |
| BCC_A2 phase:al-te:bcc-a2 | W · A2 · cI2 · Im-3m (229) | tier A: standard phase name | not stable in 2 calculated diagram(s) | 0 | 2 |
| FCC_A1 phase:al-te:fcc-a1 | Cu · A1 · cF4 · Fm-3m (225) | tier A: standard phase name | stable in 2 of 2 calculated diagram(s): 300–933.47 K, x(Te) 0–0 | 2 | 2 |
| HCP_A3 phase:al-te:hcp-a3 | Mg · A3 · hP2 · P6_3/mmc (194) | tier A: standard phase name | not stable in 2 calculated diagram(s) | 0 | 2 |
| ION phase:al-te:ion | liquid | liquid | stable in 1 of 1 calculated diagram(s): 567.29–2500 K, x(Te) 0–1 | 0 | 1 |
| LIQUID phase:al-te:liquid | liquid | liquid | stable in 1 of 1 calculated diagram(s): 699.65–2500 K, x(Te) 0–1 | 12 | 1 |
HEXAGONAL_A8 (Al–Te)
- Id:
phase:al-te:a8-hexagonal; statusassigned - 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 2 of 2 calculated diagram(s): 300–722.66 K, x(Te) 1–1
- Literature: 4 values (4 accepted) from 1 papers
- Interactive: phase registry entry
Names (5): corpus: corpus:phase:al-te:a8-hexagonal, corpus:phase:al-te:hexagonal-a8
paper: paper:10.1007/s11669-019-00733-z:(Te)
tdb: tdb:AlTe-19Shi.tdb:HEXAGONAL_A8, tdb:AlTe-93Oh.tdb:HEXAGONAL_A8
TDB models of HEXAGONAL_A8 (2): PHASE and CONSTITUENT statements as written
AlTe-19Shi.tdb: HEXAGONAL_A8, type code %, sha256 c52e1bafcdb91f7e…
48: PHASE HEXAGONAL_A8 % 1 1 ! 49: CONST HEXAGONAL_A8 : TE : !
AlTe-93Oh.tdb: HEXAGONAL_A8, type code %, sha256 a95e02f39b2e3292…
52: PHASE HEXAGONAL_A8 % 1 1 ! 53: CONST HEXAGONAL_A8 : TE : !
Example references (3 of 3; assessments first):
- doi:10.1007/s11669-019-00733-z Chenying Shi, Biaobiao Yang, Biao Hu, Yong Du, Sheng Yao, Thermodynamic Description of the Al–X (X = S, Se, Te) Systems, J. Phase Equilib. Diffus. 40, 392-402 (2019).
assessment that models this phase; reports values for this phase - doi:10.1016/0364-5916(93)90018-7 C.-S. Oh, D.N. Lee, Calphad, 17, 175-87(1993).
assessment that models this phase - doi:10.1515/znb-1988-0209 Rüdiger Kniep, Peter Blees, Phasengleichgewichte und intermediäre Phasen im System Al–Te / Phase Relations and Intermediate Phases in the Al–Te System, Zeitschrift für Naturforschung B 43, 182-188 (1988).
cited as the source of values for this phase
AL2TE3 (Al–Te)
- Id:
phase:al-te:al2te3; statusneeds_review - No structure assigned. Why: no_structure_token; polymorph_family:other phases of this system have the same composition
- Candidate (dft_mp): P2_1/c (14) — on-hull MP Al2Te3 at x(TE)=0.6000
- Candidate (dft_oqmd): P21/c (14) — on-hull OQMD Al2 Te3 at x(TE)=0.6000
- Candidate (tdb_comment): Al2Te3 · mP240 · P2_1 — AlTe-93Oh.tdb: 'Prototype Al2Te3 (mP240, P2_1)'
- Stoichiometry: Al 0.4000, Te 0.6000
- Stability: stable in 1 of 1 calculated diagram(s): 300–1167.29 K, x(Te) 0.6–0.6
- Literature: 5 values (5 accepted) from 1 papers
- Interactive: phase registry entry
Names (3): corpus: corpus:phase:al-te:al2te3
paper: paper:10.1007/s11669-019-00733-z:Al2Te3
tdb: tdb:AlTe-93Oh.tdb:AL2TE3
TDB models of AL2TE3 (1): PHASE and CONSTITUENT statements as written
AlTe-93Oh.tdb: AL2TE3, type code %, sha256 a95e02f39b2e3292…
57: PHASE AL2TE3 % 2 2 3 ! 58: CONST AL2TE3 : AL : TE : !
Example references (2 of 2; assessments first):
- doi:10.1016/0364-5916(93)90018-7 C.-S. Oh, D.N. Lee, Calphad, 17, 175-87(1993).
assessment that models this phase - doi:10.1007/s11669-019-00733-z Chenying Shi, Biaobiao Yang, Biao Hu, Yong Du, Sheng Yao, Thermodynamic Description of the Al–X (X = S, Se, Te) Systems, J. Phase Equilib. Diffus. 40, 392-402 (2019).
reports values for this phase
AL2TE3_ALPHA (Al–Te)
- Id:
phase:al-te:al2te3-alpha; statusassigned - Structure: Al2Te3 · mP240 · P2_1 (4); type
st:al2te3-mp240; 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_structure_token, polymorph_family:other phases of this system have the same composition); structure as stated in the SGTE crystallographic table for this phase name and system
- Stoichiometry: Al 0.4000, Te 0.6000
- Stability: stable in 1 of 1 calculated diagram(s): 300–993.15 K, x(Te) 0.6–0.6
- Literature: 4 values (4 accepted) from 1 papers
- Interactive: phase registry entry
Names (3): corpus: corpus:phase:al-te:al2te3-alpha
paper: paper:10.1007/s11669-019-00733-z:αAl2Te3
tdb: tdb:AlTe-19Shi.tdb:AL2TE3_ALPHA
TDB models of AL2TE3_ALPHA (1): PHASE and CONSTITUENT statements as written
AlTe-19Shi.tdb: AL2TE3_ALPHA, type code %, sha256 c52e1bafcdb91f7e…
58: PHASE AL2TE3_ALPHA % 2 2 3 ! 59: CONST AL2TE3_ALPHA : AL : TE : !
Example references (2 of 2; assessments first):
- doi:10.1007/s11669-019-00733-z Chenying Shi, Biaobiao Yang, Biao Hu, Yong Du, Sheng Yao, Thermodynamic Description of the Al–X (X = S, Se, Te) Systems, J. Phase Equilib. Diffus. 40, 392-402 (2019).
assessment that models this phase; reports values for this phase - doi:10.1515/znb-1988-0209 Rüdiger Kniep, Peter Blees, Phasengleichgewichte und intermediäre Phasen im System Al–Te / Phase Relations and Intermediate Phases in the Al–Te System, Zeitschrift für Naturforschung B 43, 182-188 (1988).
cited as the source of values for this phase
AL2TE3_BETA (Al–Te)
- Id:
phase:al-te:al2te3-beta; statusassigned - Structure: Al2Te3 · mP40 · P2_1/c (14); type
st:al2te3-mp40; 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_structure_token, polymorph_family:other phases of this system have the same composition); structure as stated in the SGTE crystallographic table for this phase name and system
- Stoichiometry: Al 0.4000, Te 0.6000
- Stability: stable in 1 of 1 calculated diagram(s): 993.15–1165.36 K, x(Te) 0.6–0.6
- Literature: 2 values (2 accepted) from 1 papers
- Interactive: phase registry entry
Names (3): corpus: corpus:phase:al-te:al2te3-beta
paper: paper:10.1007/s11669-019-00733-z:βAl2Te3
tdb: tdb:AlTe-19Shi.tdb:AL2TE3_BETA
TDB models of AL2TE3_BETA (1): PHASE and CONSTITUENT statements as written
AlTe-19Shi.tdb: AL2TE3_BETA, type code %, sha256 c52e1bafcdb91f7e…
63: PHASE AL2TE3_BETA % 2 2 3 ! 64: CONST AL2TE3_BETA : AL : TE : !
Example references (2 of 2; assessments first):
- doi:10.1007/s11669-019-00733-z Chenying Shi, Biaobiao Yang, Biao Hu, Yong Du, Sheng Yao, Thermodynamic Description of the Al–X (X = S, Se, Te) Systems, J. Phase Equilib. Diffus. 40, 392-402 (2019).
assessment that models this phase; reports values for this phase - doi:10.1515/znb-1988-0209 Rüdiger Kniep, Peter Blees, Phasengleichgewichte und intermediäre Phasen im System Al–Te / Phase Relations and Intermediate Phases in the Al–Te System, Zeitschrift für Naturforschung B 43, 182-188 (1988).
cited as the source of values for this phase
AL2TE5 (Al–Te)
- Id:
phase:al-te:al2te5; statusassigned - Structure: Al2Te5 · mC14 · C2/m (12); type
st:al2te5-mc14; 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 (mp_oqmd_space_groups_differ, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
- Stoichiometry: Al 0.2857, Te 0.7143
- Stability: stable in 1 of 1 calculated diagram(s): 682.23–735.99 K, x(Te) 0.71429–0.71429
- Literature: 10 values (10 accepted) from 1 papers
- Interactive: phase registry entry
Names (3): corpus: corpus:phase:al-te:al2te5
paper: paper:10.1007/s11669-019-00733-z:Al2Te5
tdb: tdb:AlTe-19Shi.tdb:AL2TE5
TDB models of AL2TE5 (1): PHASE and CONSTITUENT statements as written
AlTe-19Shi.tdb: AL2TE5, type code %, sha256 c52e1bafcdb91f7e…
68: PHASE AL2TE5 % 2 2 5 ! 69: CONST AL2TE5 : AL : TE : !
Example references (3 of 3; assessments first):
- doi:10.1007/s11669-019-00733-z Chenying Shi, Biaobiao Yang, Biao Hu, Yong Du, Sheng Yao, Thermodynamic Description of the Al–X (X = S, Se, Te) Systems, J. Phase Equilib. Diffus. 40, 392-402 (2019).
assessment that models this phase; reports values for this phase - doi:10.1002/zaac.19966220611 H. J. Deiseroth, P. Amann, H. Thurn, Die Pentatelluride M<sub>2</sub>Te<sub>5</sub> (M = Al, Ga, In): Polymorphie, Strukturbeziehungen und Homogenitätsbereiche, Zeitschrift anorg allge chemie 622, 985-993 (1996).
cited as the source of values for this phase - doi:10.1515/znb-1988-0209 Rüdiger Kniep, Peter Blees, Phasengleichgewichte und intermediäre Phasen im System Al–Te / Phase Relations and Intermediate Phases in the Al–Te System, Zeitschrift für Naturforschung B 43, 182-188 (1988).
cited as the source of values for this phase
ALTE (Al–Te)
- Id:
phase:al-te:alte; statusneeds_review - No structure assigned. Why: no_on_hull_entry_in_mp; no_structure_token; sgte_mmc2_row_incomplete
- Candidate (dft_oqmd): C2/m (12) — on-hull OQMD Al1 Te1 at x(TE)=0.5000
- Candidate (literature_printed): (AlTe) · ? — printed with a label mapped to this phase
- Candidate (sgte_mmc2): (AlTe) — Hallstedt 2025 mmc2 row for ALTE: AlTe
- Stoichiometry: Al 0.5000, Te 0.5000
- Stability: stable in 1 of 1 calculated diagram(s): 300–1128.7 K, x(Te) 0.5–0.5
- Literature: 7 values (7 accepted) from 1 papers
- Interactive: phase registry entry
Names (3): corpus: corpus:phase:al-te:alte
paper: paper:10.1007/s11669-019-00733-z:AlTe
tdb: tdb:AlTe-19Shi.tdb:ALTE
TDB models of ALTE (1): PHASE and CONSTITUENT statements as written
AlTe-19Shi.tdb: ALTE, type code %, sha256 c52e1bafcdb91f7e…
53: PHASE ALTE % 2 1 1 ! 54: CONST ALTE : AL : TE : !
Example references (2 of 2; assessments first):
- doi:10.1007/s11669-019-00733-z Chenying Shi, Biaobiao Yang, Biao Hu, Yong Du, Sheng Yao, Thermodynamic Description of the Al–X (X = S, Se, Te) Systems, J. Phase Equilib. Diffus. 40, 392-402 (2019).
assessment that models this phase; reports values for this phase - doi:10.1515/znb-1988-0209 Rüdiger Kniep, Peter Blees, Phasengleichgewichte und intermediäre Phasen im System Al–Te / Phase Relations and Intermediate Phases in the Al–Te System, Zeitschrift für Naturforschung B 43, 182-188 (1988).
cited as the source of values for this phase
BCC_A2 (Al–Te)
- Id:
phase:al-te:bcc-a2; statusassigned - Structure: W · A2 · cI2 · Im-3m (229); type
st:a2-w-ci2; tier A: standard phase name; confidence high - Stoichiometry: Al 1.0000
- Stability: not stable in 2 calculated diagram(s)
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: phase registry entry
Names (3): corpus: corpus:phase:al-te:bcc-a2
tdb: tdb:AlTe-19Shi.tdb:BCC_A2, tdb:AlTe-93Oh.tdb:BCC_A2
TDB models of BCC_A2 (2): PHASE and CONSTITUENT statements as written
AlTe-19Shi.tdb: BCC_A2, type code %B, sha256 c52e1bafcdb91f7e…
38: PHASE BCC_A2 %B 2 1 3 ! 39: CONST BCC_A2 : AL : VA : !
AlTe-93Oh.tdb: BCC_A2, type code %B, sha256 a95e02f39b2e3292…
42: PHASE BCC_A2 %B 2 1 3 ! 43: CONST BCC_A2 : AL : VA : !
Example references (2 of 2; assessments first):
- doi:10.1007/s11669-019-00733-z Chenying Shi, Biaobiao Yang, Biao Hu, Yong Du, Sheng Yao, Thermodynamic Description of the Al–X (X = S, Se, Te) Systems, J. Phase Equilib. Diffus. 40, 392-402 (2019).
assessment that models this phase - doi:10.1016/0364-5916(93)90018-7 C.-S. Oh, D.N. Lee, Calphad, 17, 175-87(1993).
assessment that models this phase
FCC_A1 (Al–Te)
- Id:
phase:al-te:fcc-a1; statusassigned - Structure: Cu · A1 · cF4 · Fm-3m (225); type
st:a1-cu-cf4; tier A: standard phase name; confidence high - Stoichiometry: Al 1.0000
- Stability: stable in 2 of 2 calculated diagram(s): 300–933.47 K, x(Te) 0–0
- Literature: 2 values (2 accepted) from 1 papers
- Interactive: phase registry entry
Names (4): corpus: corpus:phase:al-te:fcc-a1
paper: paper:10.1007/s11669-019-00733-z:(Al)
tdb: tdb:AlTe-19Shi.tdb:FCC_A1, tdb:AlTe-93Oh.tdb:FCC_A1
TDB models of FCC_A1 (2): PHASE and CONSTITUENT statements as written
AlTe-19Shi.tdb: FCC_A1, type code %A, sha256 c52e1bafcdb91f7e…
33: PHASE FCC_A1 %A 2 1 1 ! 34: CONST FCC_A1 : AL : VA : !
AlTe-93Oh.tdb: FCC_A1, type code %A, sha256 a95e02f39b2e3292…
37: PHASE FCC_A1 %A 2 1 1 ! 38: CONST FCC_A1 : AL : VA : !
Example references (3 of 3; assessments first):
- doi:10.1007/s11669-019-00733-z Chenying Shi, Biaobiao Yang, Biao Hu, Yong Du, Sheng Yao, Thermodynamic Description of the Al–X (X = S, Se, Te) Systems, J. Phase Equilib. Diffus. 40, 392-402 (2019).
assessment that models this phase; reports values for this phase - doi:10.1016/0364-5916(93)90018-7 C.-S. Oh, D.N. Lee, Calphad, 17, 175-87(1993).
assessment that models this phase - doi:10.1515/znb-1988-0209 Rüdiger Kniep, Peter Blees, Phasengleichgewichte und intermediäre Phasen im System Al–Te / Phase Relations and Intermediate Phases in the Al–Te System, Zeitschrift für Naturforschung B 43, 182-188 (1988).
cited as the source of values for this phase
HCP_A3 (Al–Te)
- Id:
phase:al-te:hcp-a3; statusassigned - Structure: Mg · A3 · hP2 · P6_3/mmc (194); type
st:a3-mg-hp2; tier A: standard phase name; confidence high - Stoichiometry: Al 1.0000
- Stability: not stable in 2 calculated diagram(s)
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: phase registry entry
Names (3): corpus: corpus:phase:al-te:hcp-a3
tdb: tdb:AlTe-19Shi.tdb:HCP_A3, tdb:AlTe-93Oh.tdb:HCP_A3
TDB models of HCP_A3 (2): PHASE and CONSTITUENT statements as written
AlTe-19Shi.tdb: HCP_A3, type code %A, sha256 c52e1bafcdb91f7e…
43: PHASE HCP_A3 %A 2 1 0.5 ! 44: CONST HCP_A3 : AL : VA: !
AlTe-93Oh.tdb: HCP_A3, type code %A, sha256 a95e02f39b2e3292…
47: PHASE HCP_A3 %A 2 1 0.5 ! 48: CONST HCP_A3 : AL : VA: !
Example references (2 of 2; assessments first):
- doi:10.1007/s11669-019-00733-z Chenying Shi, Biaobiao Yang, Biao Hu, Yong Du, Sheng Yao, Thermodynamic Description of the Al–X (X = S, Se, Te) Systems, J. Phase Equilib. Diffus. 40, 392-402 (2019).
assessment that models this phase - doi:10.1016/0364-5916(93)90018-7 C.-S. Oh, D.N. Lee, Calphad, 17, 175-87(1993).
assessment that models this phase
ION (Al–Te)
- Id:
phase:al-te:ion; statusassigned - Structure: liquid; type
st:liquid; liquid; confidence high - Stability: stable in 1 of 1 calculated diagram(s): 567.29–2500 K, x(Te) 0–1
- Literature: 0 values (0 accepted) from 0 papers
- Interactive: phase registry entry
Names (2): corpus: corpus:phase:al-te:ion
tdb: tdb:AlTe-93Oh.tdb:ION
TDB models of ION (1): PHASE and CONSTITUENT statements as written
AlTe-93Oh.tdb: ION, type code %, sha256 a95e02f39b2e3292…
32: PHASE ION:Y % 2 1 1 ! 33: CONST ION:Y : AL+3 : TE-2 VA TE : !
Example references (1 of 1; assessments first):
- doi:10.1016/0364-5916(93)90018-7 C.-S. Oh, D.N. Lee, Calphad, 17, 175-87(1993).
assessment that models this phase
LIQUID (Al–Te)
- Id:
phase:al-te:liquid; statusassigned - Structure: liquid; type
st:liquid; liquid; confidence high - Stability: stable in 1 of 1 calculated diagram(s): 699.65–2500 K, x(Te) 0–1
- Literature: 12 values (12 accepted) from 1 papers
- Interactive: phase registry entry
Names (5): corpus: corpus:phase:al-te:liquid
paper: paper:10.1007/s11669-019-00733-z:L, paper:10.1007/s11669-019-00733-z:L1, paper:10.1007/s11669-019-00733-z:L2
tdb: tdb:AlTe-19Shi.tdb:LIQUID
TDB models of LIQUID (1): PHASE and CONSTITUENT statements as written
AlTe-19Shi.tdb: LIQUID, type code %, sha256 c52e1bafcdb91f7e…
28: PHASE LIQUID % 1 1 ! 29: CONST LIQUID :AL AL2TE3 TE : !
Example references (2 of 2; assessments first):
- doi:10.1007/s11669-019-00733-z Chenying Shi, Biaobiao Yang, Biao Hu, Yong Du, Sheng Yao, Thermodynamic Description of the Al–X (X = S, Se, Te) Systems, J. Phase Equilib. Diffus. 40, 392-402 (2019).
assessment that models this phase; reports values for this phase - doi:10.1515/znb-1988-0209 Rüdiger Kniep, Peter Blees, Phasengleichgewichte und intermediäre Phasen im System Al–Te / Phase Relations and Intermediate Phases in the Al–Te System, Zeitschrift für Naturforschung B 43, 182-188 (1988).
cited as the source of values for this phase