Al–Y phases

13 phases (tier A 9, tier C 2, liquid 1, needs_review 1); 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 · Al–Y system page · Markdown · field reference

Phases of the Al–Y system (13)
PhaseStructureBasisStability (calculated)Literature valuesTDB models
AL2Y_C15
phase:al-y:al2y-c15
Cu2Mg · C15 · cF24 · Fd-3m (227)tier A: standard phase namestable in 3 of 3 calculated diagram(s): 300–1757.38 K, x(Y) 0.33333–0.3333303
AL2Y3
phase:al-y:al2y3
Al2Zr3 · tP20 · P4_2/mnm (136)tier C: assessor-stated (Hallstedt 2025 crystallographic table)stable in 6 of 6 calculated diagram(s): 300–1381.71 K, x(Y) 0.6–0.6436
AL3Y
phase:al-y:al3y
needs_reviewstable in 3 of 3 calculated diagram(s): 300–1257.21 K, x(Y) 0.25–0.2523
AL3Y_BETA
phase:al-y:al3y-beta
BaPb3 · hR12 · R-3m (166)tier C: assessor-stated (Hallstedt 2025 crystallographic table)stable in 3 of 3 calculated diagram(s): 917.21–1253.4 K, x(Y) 0.25–0.25173
AL3Y_D019
phase:al-y:al3y-d019
Ni3Sn · D0_19 · hP8 · P6_3/mmc (194)tier A: standard phase namestable in 3 of 3 calculated diagram(s): 300–918.92 K, x(Y) 0.25–0.25173
AL3Y5_D88
phase:al-y:al3y5-d88
Mn5Si3 · D8_8 · hP16 · P6_3/mcm (193)tier A: standard phase namestable in 1 of 1 calculated diagram(s): 300–1303.16 K, x(Y) 0.625–0.62561
ALY_B33
phase:al-y:aly-b33
CrB · B33 · oC8 · Cmcm (63)tier A: standard phase namestable in 6 of 6 calculated diagram(s): 300–1410 K, x(Y) 0.5–0.5226
ALY2_C37
phase:al-y:aly2-c37
Co2Si · C37 · oP12 · Pnma (62)tier A: standard phase namestable in 6 of 6 calculated diagram(s): 300–1259.86 K, x(Y) 0.66667–0.66667246
BCC_A2
phase:al-y:bcc-a2
W · A2 · cI2 · Im-3m (229)tier A: standard phase namestable in 6 of 6 calculated diagram(s): 1750.96–2499.9 K, x(Y) 0.9992–146
C15_LAVES
phase:al-y:c15-laves
Cu2Mg · C15 · cF24 · Fd-3m (227)tier A: standard phase namestable in 3 of 3 calculated diagram(s): 300–1763.21 K, x(Y) 0.33185–0.33708323
FCC_A1
phase:al-y:fcc-a1
Cu · A1 · cF4 · Fm-3m (225)tier A: standard phase namestable in 6 of 6 calculated diagram(s): 300–942.76 K, x(Y) 0–0.0011126
HCP_A3
phase:al-y:hcp-a3
Mg · A3 · hP2 · P6_3/mmc (194)tier A: standard phase namestable in 6 of 6 calculated diagram(s): 300–1751.15 K, x(Y) 0.99847–1146
LIQUID
phase:al-y:liquid
liquidliquidstable in 6 of 6 calculated diagram(s): 905.64–2500 K, x(Y) 0–1906

AL2Y_C15 (Al–Y)

Names (6): corpus: corpus:phase:al-y:al2y-c15
mp: mp:mp-aaaaadli
oqmd: oqmd:oqmd-10612
tdb: tdb:AlY-06AlS.tdb:AL2Y_C15, tdb:AlY-95Gro-LB.tdb:AL2Y_C15, tdb:AlY-98Luk.tdb:AL2Y_C15

TDB models of AL2Y_C15 (3): PHASE and CONSTITUENT statements as written

AlY-06AlS.tdb: AL2Y_C15, type code %, sha256 1aee43313ab48fb7…

50: PHASE AL2Y_C15 % 2 2 1 !
51: CONST AL2Y_C15 : AL : Y : !

AlY-95Gro-LB.tdb: AL2Y_C15, type code %, sha256 5a2e7289e9fb1d71…

49: PHASE AL2Y_C15 % 2 2 1 !
50: CONST AL2Y_C15 : AL : Y : !

AlY-98Luk.tdb: AL2Y_C15, type code %, sha256 aca03d391299be73…

55: PHASE AL2Y_C15 % 2 2 1 !
56: CONST AL2Y_C15 : AL : Y : !

Example references (2 of 2; assessments first):

AL2Y3 (Al–Y)

Names (11): corpus: corpus:phase:al-y:al2y3
paper: paper:10.1016/j.calphad.2006.01.001:Al2Y3, paper:10.1016/j.jallcom.2008.07.105:Al2Y3, paper:10.1016/j.tca.2018.01.018:Al2Y3, paper:10.1361/154770306x109782:Al2Y3
tdb: tdb:AlY-06AlS.tdb:AL2Y3, tdb:AlY-06Liu.tdb:AL2Y3, tdb:AlY-15Hua.tdb:AL2Y3, tdb:AlY-18Hu.tdb:AL2Y3, tdb:AlY-95Gro-LB.tdb:AL2Y3, tdb:AlY-98Luk.tdb:AL2Y3

TDB models of AL2Y3 (6): PHASE and CONSTITUENT statements as written

AlY-06AlS.tdb: AL2Y3, type code %, sha256 1aee43313ab48fb7…

60: PHASE AL2Y3 % 2 2 3 !
61: CONST AL2Y3 : AL : Y : !

AlY-06Liu.tdb: AL2Y3, type code %, sha256 a92ac2a7c8a36049…

60: PHASE AL2Y3 % 2 2 3 !
61: CONST AL2Y3 : AL : Y : !

AlY-15Hua.tdb: AL2Y3, type code %, sha256 cf62f8b23dc00d6d…

65: PHASE AL2Y3 % 2 2 3 !
66: CONST AL2Y3 : AL : Y : !

AlY-18Hu.tdb: AL2Y3, type code %, sha256 0876f43dbe16233b…

60: PHASE AL2Y3 % 2 2 3 !
61: CONST AL2Y3 : AL : Y : !

AlY-95Gro-LB.tdb: AL2Y3, type code %, sha256 5a2e7289e9fb1d71…

59: PHASE AL2Y3 % 2 2 3 !
60: CONST AL2Y3 : AL : Y : !

AlY-98Luk.tdb: AL2Y3, type code %, sha256 aca03d391299be73…

65: PHASE AL2Y3 % 2 2 3 !
66: CONST AL2Y3 : AL : Y : !

Example references (7 of 7; assessments first):

AL3Y (Al–Y)

Names (5): corpus: corpus:phase:al-y:al3y
paper: paper:10.1361/154770306x109782:Al3Y
tdb: tdb:AlY-06AlS.tdb:AL3Y, tdb:AlY-95Gro-LB.tdb:AL3Y, tdb:AlY-98Luk.tdb:AL3Y

TDB models of AL3Y (3): PHASE and CONSTITUENT statements as written

AlY-06AlS.tdb: AL3Y, type code %, sha256 1aee43313ab48fb7…

45: PHASE AL3Y % 2 3 1 !
46: CONST AL3Y : AL : Y : !

AlY-95Gro-LB.tdb: AL3Y, type code %, sha256 5a2e7289e9fb1d71…

44: PHASE AL3Y % 2 3 1 !
45: CONST AL3Y : AL : Y : !

AlY-98Luk.tdb: AL3Y, type code %, sha256 aca03d391299be73…

50: PHASE AL3Y % 2 3 1 !
51: CONST AL3Y : AL : Y : !

Example references (3 of 3; assessments first):

AL3Y_BETA (Al–Y)

Names (6): corpus: corpus:phase:al-y:al3y-beta
paper: paper:10.1016/j.calphad.2006.01.001:βAl3Y, paper:10.1016/j.tca.2018.01.018:βAl3Y
tdb: tdb:AlY-06Liu.tdb:AL3Y_BETA, tdb:AlY-15Hua.tdb:AL3Y_BETA, tdb:AlY-18Hu.tdb:AL3Y_BETA

TDB models of AL3Y_BETA (3): PHASE and CONSTITUENT statements as written

AlY-06Liu.tdb: AL3Y_BETA, type code %, sha256 a92ac2a7c8a36049…

45: PHASE AL3Y_BETA % 2 3 1 !
46: CONST AL3Y_BETA : AL : Y : !

AlY-15Hua.tdb: AL3Y_BETA, type code %, sha256 cf62f8b23dc00d6d…

50: PHASE AL3Y_BETA % 2 3 1 !
51: CONST AL3Y_BETA : AL : Y : !

AlY-18Hu.tdb: AL3Y_BETA, type code %, sha256 0876f43dbe16233b…

45: PHASE AL3Y_BETA % 2 3 1 !
46: CONST AL3Y_BETA : AL : Y : !

Example references (5 of 5; assessments first):

AL3Y_D019 (Al–Y)

Names (6): corpus: corpus:phase:al-y:al3y-d019
paper: paper:10.1016/j.calphad.2006.01.001:αAl3Y, paper:10.1016/j.tca.2018.01.018:αAl3Y
tdb: tdb:AlY-06Liu.tdb:AL3Y_D019, tdb:AlY-15Hua.tdb:AL3Y_D019, tdb:AlY-18Hu.tdb:AL3Y_D019

TDB models of AL3Y_D019 (3): PHASE and CONSTITUENT statements as written

AlY-06Liu.tdb: AL3Y_D019, type code %, sha256 a92ac2a7c8a36049…

40: PHASE AL3Y_D019 % 2 3 1 !
41: CONST AL3Y_D019 : AL : Y : !

AlY-15Hua.tdb: AL3Y_D019, type code %, sha256 cf62f8b23dc00d6d…

45: PHASE AL3Y_D019 % 2 3 1 !
46: CONST AL3Y_D019 : AL : Y : !

AlY-18Hu.tdb: AL3Y_D019, type code %, sha256 0876f43dbe16233b…

40: PHASE AL3Y_D019 % 2 3 1 !
41: CONST AL3Y_D019 : AL : Y : !

Example references (5 of 5; assessments first):

AL3Y5_D88 (Al–Y)

Names (3): corpus: corpus:phase:al-y:al3y5-d88
paper: paper:10.1016/j.tca.2018.01.018:Al3Y5
tdb: tdb:AlY-98Luk.tdb:AL3Y5_D88

TDB models of AL3Y5_D88 (1): PHASE and CONSTITUENT statements as written

AlY-98Luk.tdb: AL3Y5_D88, type code %, sha256 aca03d391299be73…

70: PHASE AL3Y5_D88 % 2 3 5 !
71: CONST AL3Y5_D88 : AL : Y : !

Example references (1 of 1; assessments first):

ALY_B33 (Al–Y)

Names (9): corpus: corpus:phase:al-y:aly-b33
paper: paper:10.1016/j.calphad.2006.01.001:AlY, paper:10.1016/j.tca.2018.01.018:AlY
tdb: tdb:AlY-06AlS.tdb:ALY_B33, tdb:AlY-06Liu.tdb:ALY_B33, tdb:AlY-15Hua.tdb:ALY_B33, tdb:AlY-18Hu.tdb:ALY_B33, tdb:AlY-95Gro-LB.tdb:ALY_B33, tdb:AlY-98Luk.tdb:ALY_B33

TDB models of ALY_B33 (6): PHASE and CONSTITUENT statements as written

AlY-06AlS.tdb: ALY_B33, type code %, sha256 1aee43313ab48fb7…

55: PHASE ALY_B33 % 2 1 1 !
56: CONST ALY_B33 : AL : Y : !

AlY-06Liu.tdb: ALY_B33, type code %, sha256 a92ac2a7c8a36049…

55: PHASE ALY_B33 % 2 1 1 !
56: CONST ALY_B33 : AL : Y : !

AlY-15Hua.tdb: ALY_B33, type code %, sha256 cf62f8b23dc00d6d…

60: PHASE ALY_B33 % 2 1 1 !
61: CONST ALY_B33 : AL : Y : !

AlY-18Hu.tdb: ALY_B33, type code %, sha256 0876f43dbe16233b…

55: PHASE ALY_B33 % 2 1 1 !
56: CONST ALY_B33 : AL : Y : !

AlY-95Gro-LB.tdb: ALY_B33, type code %, sha256 5a2e7289e9fb1d71…

54: PHASE ALY_B33 % 2 1 1 !
55: CONST ALY_B33 : AL : Y : !

AlY-98Luk.tdb: ALY_B33, type code %, sha256 aca03d391299be73…

60: PHASE ALY_B33 % 2 1 1 !
61: CONST ALY_B33 : AL : Y : !

Example references (6 of 6; assessments first):

ALY2_C37 (Al–Y)

Names (11): corpus: corpus:phase:al-y:aly2-c37
mp: mp:mp-aaaaaqpy
oqmd: oqmd:oqmd-10610
paper: paper:10.1016/j.calphad.2006.01.001:AlY2, paper:10.1016/j.tca.2018.01.018:AlY2
tdb: tdb:AlY-06AlS.tdb:ALY2_C37, tdb:AlY-06Liu.tdb:ALY2_C37, tdb:AlY-15Hua.tdb:ALY2_C37, tdb:AlY-18Hu.tdb:ALY2_C37, tdb:AlY-95Gro-LB.tdb:ALY2_C37, tdb:AlY-98Luk.tdb:ALY2_C37

TDB models of ALY2_C37 (6): PHASE and CONSTITUENT statements as written

AlY-06AlS.tdb: ALY2_C37, type code %, sha256 1aee43313ab48fb7…

65: PHASE ALY2_C37 % 2 1 2 !
66: CONST ALY2_C37 : AL : Y : !

AlY-06Liu.tdb: ALY2_C37, type code %, sha256 a92ac2a7c8a36049…

65: PHASE ALY2_C37 % 2 1 2 !
66: CONST ALY2_C37 : AL : Y : !

AlY-15Hua.tdb: ALY2_C37, type code %, sha256 cf62f8b23dc00d6d…

70: PHASE ALY2_C37 % 2 1 2 !
71: CONST ALY2_C37 : AL : Y : !

AlY-18Hu.tdb: ALY2_C37, type code %, sha256 0876f43dbe16233b…

65: PHASE ALY2_C37 % 2 1 2 !
66: CONST ALY2_C37 : AL : Y : !

AlY-95Gro-LB.tdb: ALY2_C37, type code %, sha256 5a2e7289e9fb1d71…

64: PHASE ALY2_C37 % 2 1 2 !
65: CONST ALY2_C37 : AL : Y : !

AlY-98Luk.tdb: ALY2_C37, type code %, sha256 aca03d391299be73…

75: PHASE ALY2_C37 % 2 1 2 !
76: CONST ALY2_C37 : AL : Y : !

Example references (6 of 6; assessments first):

BCC_A2 (Al–Y)

Names (9): corpus: corpus:phase:al-y:bcc-a2
paper: paper:10.1016/j.calphad.2006.01.001:(βY), paper:10.1016/j.tca.2018.01.018:bcc_Y
tdb: tdb:AlY-06AlS.tdb:BCC_A2, tdb:AlY-06Liu.tdb:BCC_A2, tdb:AlY-15Hua.tdb:BCC_A2, tdb:AlY-18Hu.tdb:BCC_A2, tdb:AlY-95Gro-LB.tdb:BCC_A2, tdb:AlY-98Luk.tdb:BCC_A2

TDB models of BCC_A2 (6): PHASE and CONSTITUENT statements as written

AlY-06AlS.tdb: BCC_A2, type code %B, sha256 1aee43313ab48fb7…

34: PHASE BCC_A2 %B 2 1 3 !
35: CONST BCC_A2 : AL Y% : VA : !

AlY-06Liu.tdb: BCC_A2, type code %B, sha256 a92ac2a7c8a36049…

30: PHASE BCC_A2 %B 2 1 3 !
31: CONST BCC_A2 : AL Y% : VA : !

AlY-15Hua.tdb: BCC_A2, type code %B, sha256 cf62f8b23dc00d6d…

35: PHASE BCC_A2 %B 2 1 3 !
36: CONST BCC_A2 : AL Y% : VA : !

AlY-18Hu.tdb: BCC_A2, type code %B, sha256 0876f43dbe16233b…

30: PHASE BCC_A2 %B 2 1 3 !
31: CONST BCC_A2 : AL Y% : VA : !

AlY-95Gro-LB.tdb: BCC_A2, type code %B, sha256 5a2e7289e9fb1d71…

33: PHASE BCC_A2 %B 2 1 3 !
34: CONST BCC_A2 : AL Y% : VA : !

AlY-98Luk.tdb: BCC_A2, type code %B, sha256 aca03d391299be73…

39: PHASE BCC_A2 %B 2 1 3 !
40: CONST BCC_A2 : AL Y% : VA : !

Example references (6 of 6; assessments first):

C15_LAVES (Al–Y)

Names (6): corpus: corpus:phase:al-y:c15-laves
paper: paper:10.1016/j.calphad.2006.01.001:Al2Y, paper:10.1016/j.tca.2018.01.018:Al2Y
tdb: tdb:AlY-06Liu.tdb:C15_LAVES, tdb:AlY-15Hua.tdb:C15_LAVES, tdb:AlY-18Hu.tdb:C15_LAVES

TDB models of C15_LAVES (3): PHASE and CONSTITUENT statements as written

AlY-06Liu.tdb: C15_LAVES, type code %, sha256 a92ac2a7c8a36049…

50: PHASE C15_LAVES % 2 2 1 !
51: CONST C15_LAVES : AL% Y : AL Y% : !

AlY-15Hua.tdb: C15_LAVES, type code %, sha256 cf62f8b23dc00d6d…

55: PHASE C15_LAVES % 2 2 1 !
56: CONST C15_LAVES : AL% Y : AL Y% : !

AlY-18Hu.tdb: C15_LAVES, type code %, sha256 0876f43dbe16233b…

50: PHASE C15_LAVES % 2 2 1 !
51: CONST C15_LAVES : AL% Y : AL Y% : !

Example references (5 of 5; assessments first):

FCC_A1 (Al–Y)

Names (9): corpus: corpus:phase:al-y:fcc-a1
paper: paper:10.1016/j.calphad.2006.01.001:(Al), paper:10.1016/j.tca.2018.01.018:fcc_Al
tdb: tdb:AlY-06AlS.tdb:FCC_A1, tdb:AlY-06Liu.tdb:FCC_A1, tdb:AlY-15Hua.tdb:FCC_A1, tdb:AlY-18Hu.tdb:FCC_A1, tdb:AlY-95Gro-LB.tdb:FCC_A1, tdb:AlY-98Luk.tdb:FCC_A1

TDB models of FCC_A1 (6): PHASE and CONSTITUENT statements as written

AlY-06AlS.tdb: FCC_A1, type code %A, sha256 1aee43313ab48fb7…

29: PHASE FCC_A1 %A 2 1 1 !
30: CONST FCC_A1 : AL% Y : VA : !

AlY-06Liu.tdb: FCC_A1, type code %A, sha256 a92ac2a7c8a36049…

25: PHASE FCC_A1 %A 2 1 1 !
26: CONST FCC_A1 : AL% Y : VA : !

AlY-15Hua.tdb: FCC_A1, type code %A, sha256 cf62f8b23dc00d6d…

30: PHASE FCC_A1 %A 2 1 1 !
31: CONST FCC_A1 : AL% Y : VA : !

AlY-18Hu.tdb: FCC_A1, type code %A, sha256 0876f43dbe16233b…

25: PHASE FCC_A1 %A 2 1 1 !
26: CONST FCC_A1 : AL% Y : VA : !

AlY-95Gro-LB.tdb: FCC_A1, type code %A, sha256 5a2e7289e9fb1d71…

28: PHASE FCC_A1 %A 2 1 1 !
29: CONST FCC_A1 : AL% Y : VA : !

AlY-98Luk.tdb: FCC_A1, type code %A, sha256 aca03d391299be73…

34: PHASE FCC_A1 %A 2 1 1 !
35: CONST FCC_A1 : AL% Y : VA : !

Example references (6 of 6; assessments first):

HCP_A3 (Al–Y)

Names (9): corpus: corpus:phase:al-y:hcp-a3
paper: paper:10.1016/j.calphad.2006.01.001:(αY), paper:10.1016/j.tca.2018.01.018:hcp_Y
tdb: tdb:AlY-06AlS.tdb:HCP_A3, tdb:AlY-06Liu.tdb:HCP_A3, tdb:AlY-15Hua.tdb:HCP_A3, tdb:AlY-18Hu.tdb:HCP_A3, tdb:AlY-95Gro-LB.tdb:HCP_A3, tdb:AlY-98Luk.tdb:HCP_A3

TDB models of HCP_A3 (6): PHASE and CONSTITUENT statements as written

AlY-06AlS.tdb: HCP_A3, type code %A, sha256 1aee43313ab48fb7…

39: PHASE HCP_A3 %A 2 1 0.5 !
40: CONST HCP_A3 : AL Y% : VA : !

AlY-06Liu.tdb: HCP_A3, type code %A, sha256 a92ac2a7c8a36049…

35: PHASE HCP_A3 %A 2 1 0.5 !
36: CONST HCP_A3 : AL Y% : VA : !

AlY-15Hua.tdb: HCP_A3, type code %A, sha256 cf62f8b23dc00d6d…

40: PHASE HCP_A3 %A 2 1 0.5 !
41: CONST HCP_A3 : AL Y% : VA : !

AlY-18Hu.tdb: HCP_A3, type code %A, sha256 0876f43dbe16233b…

35: PHASE HCP_A3 %A 2 1 0.5 !
36: CONST HCP_A3 : AL Y% : VA : !

AlY-95Gro-LB.tdb: HCP_A3, type code %A, sha256 5a2e7289e9fb1d71…

38: PHASE HCP_A3 %A 2 1 0.5 !
39: CONST HCP_A3 : AL Y% : VA : !

AlY-98Luk.tdb: HCP_A3, type code %A, sha256 aca03d391299be73…

44: PHASE HCP_A3 %A 2 1 0.5 !
45: CONST HCP_A3 : AL Y% : VA : !

Example references (6 of 6; assessments first):

LIQUID (Al–Y)

Names (10): corpus: corpus:phase:al-y:liquid
paper: paper:10.1016/j.calphad.2006.01.001:L, paper:10.1016/j.tca.2018.01.018:Liquid, paper:10.1361/154770306x109782:liquid
tdb: tdb:AlY-06AlS.tdb:LIQUID, tdb:AlY-06Liu.tdb:LIQUID, tdb:AlY-15Hua.tdb:LIQUID, tdb:AlY-18Hu.tdb:LIQUID, tdb:AlY-95Gro-LB.tdb:LIQUID, tdb:AlY-98Luk.tdb:LIQUID

TDB models of LIQUID (6): PHASE and CONSTITUENT statements as written

AlY-06AlS.tdb: LIQUID, type code %, sha256 1aee43313ab48fb7…

24: PHASE LIQUID:L % 1 1 !
25: CONST LIQUID:L : AL Y : !

AlY-06Liu.tdb: LIQUID, type code %, sha256 a92ac2a7c8a36049…

20: PHASE LIQUID:L % 1 1 !
21: CONST LIQUID:L : AL Y : !

AlY-15Hua.tdb: LIQUID, type code %, sha256 cf62f8b23dc00d6d…

25: PHASE LIQUID:L % 1 1 !
26: CONST LIQUID:L : AL Y : !

AlY-18Hu.tdb: LIQUID, type code %, sha256 0876f43dbe16233b…

20: PHASE LIQUID:L % 1 1 !
21: CONST LIQUID:L : AL Y : !

AlY-95Gro-LB.tdb: LIQUID, type code %, sha256 5a2e7289e9fb1d71…

23: PHASE LIQUID:L % 1 1 !
24: CONST LIQUID:L : AL Y : !

AlY-98Luk.tdb: LIQUID, type code %, sha256 aca03d391299be73…

29: PHASE LIQUID:L % 1 1 !
30: CONST LIQUID:L : AL Y : !

Example references (6 of 6; assessments first):