Co–Nd phases

16 phases (tier A 7, tier C 5, liquid 1, needs_review 3); 16 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 · Co–Nd system page · Markdown · field reference

Phases of the Co–Nd system (16)
PhaseStructureBasisStability (calculated)Literature valuesTDB models
BCC_A2
phase:co-nd:bcc-a2
W · A2 · cI2 · Im-3m (229)tier A: standard phase namestable in 1 of 1 calculated diagram(s): 1127.95–2499.2 K, x(Nd) 0.99995–121
CO17ND2
phase:co-nd:co17nd2
Th2Zn17 · hR19 · R-3m (166)tier C: assessor-stated (Hallstedt 2025 crystallographic table)stable in 1 of 1 calculated diagram(s): 300–1578.98 K, x(Nd) 0.10526–0.1052681
CO19ND5
phase:co-nd:co19nd5
Ce5Co19 · hR24 · R-3m (166)tier C: assessor-stated (Hallstedt 2025 crystallographic table)stable in 1 of 1 calculated diagram(s): 300–1424.57 K, x(Nd) 0.20833–0.2083351
CO2ND_C15
phase:co-nd:co2nd-c15
Cu2Mg · C15 · cF24 · Fd-3m (227)tier A: standard phase namestable in 1 of 1 calculated diagram(s): 300–1322.68 K, x(Nd) 0.33333–0.3333351
CO2ND5
phase:co-nd:co2nd5
Mn5C2 · mC28 · C2/c (15)tier C: assessor-stated (Hallstedt 2025 crystallographic table)stable in 1 of 1 calculated diagram(s): 300–869.26 K, x(Nd) 0.71429–0.7142941
CO3ND
phase:co-nd:co3nd
Ni3Pu · hR12 · R-3m (166)tier C: assessor-stated (Hallstedt 2025 crystallographic table)stable in 1 of 1 calculated diagram(s): 300–1373.07 K, x(Nd) 0.25–0.2551
CO3ND2_HT
phase:co-nd:co3nd2-ht
needs_reviewstable in 1 of 1 calculated diagram(s): 856.1–922.95 K, x(Nd) 0.4–0.461
CO3ND2_LT
phase:co-nd:co3nd2-lt
La2Ni3 · oC20 · Cmce (64)tier C: assessor-stated (Hallstedt 2025 crystallographic table)stable in 1 of 1 calculated diagram(s): 300–856.1 K, x(Nd) 0.4–0.421
CO3ND4
phase:co-nd:co3nd4
needs_reviewstable in 1 of 1 calculated diagram(s): 300–871.9 K, x(Nd) 0.57143–0.5714341
CO5ND_D2D
phase:co-nd:co5nd-d2d
CaCu5 · D2_d · hP6 · P6/mmm (191)tier A: standard phase namestable in 1 of 1 calculated diagram(s): 300–1538.27 K, x(Nd) 0.16667–0.1666751
CO7ND2
phase:co-nd:co7nd2
needs_reviewstable in 1 of 1 calculated diagram(s): 300–1415.73 K, x(Nd) 0.22222–0.2222251
COND3_D011
phase:co-nd:cond3-d011
Fe3C · D0_11 · oP16 · Pnma (62)tier A: standard phase namestable in 1 of 1 calculated diagram(s): 300–918.57 K, x(Nd) 0.75–0.7571
DHCP
phase:co-nd:dhcp-a3
alpha-La · A3' · hP4 · P6_3/mmc (194)tier A: standard phase namestable in 1 of 1 calculated diagram(s): 300–1282.95 K, x(Nd) 0.99992–121
FCC_A1
phase:co-nd:fcc-a1
Cu · A1 · cF4 · Fm-3m (225)tier A: standard phase namestable in 1 of 1 calculated diagram(s): 694.99–1796.48 K, x(Nd) 0–0.0024241
HCP_A3
phase:co-nd:hcp-a3
Mg · A3 · hP2 · P6_3/mmc (194)tier A: standard phase namestable in 1 of 1 calculated diagram(s): 300–694.99 K, x(Nd) 0–001
LIQUID
phase:co-nd:liquid
liquidliquidstable in 1 of 1 calculated diagram(s): 838.64–2500 K, x(Nd) 0–1261

BCC_A2 (Co–Nd)

Names (3): corpus: corpus:phase:co-nd:bcc-a2
paper: paper:10.1016/j.jallcom.2006.08.081:bcc(Nd)
tdb: tdb:CoNd-07Liu.tdb:BCC_A2

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

CoNd-07Liu.tdb: BCC_A2, type code %B, sha256 9a16a634620fd2a3…

35: PHASE BCC_A2 %B 2 1 3 !
36: CONST BCC_A2 : CO ND% : VA : !

Example references (2 of 2; assessments first):

CO17ND2 (Co–Nd)

Names (3): corpus: corpus:phase:co-nd:co17nd2
paper: paper:10.1016/j.jallcom.2006.08.081:Co17Nd2
tdb: tdb:CoNd-07Liu.tdb:CO17ND2

TDB models of CO17ND2 (1): PHASE and CONSTITUENT statements as written

CoNd-07Liu.tdb: CO17ND2, type code %A, sha256 9a16a634620fd2a3…

50: PHASE CO17ND2 %A 2 17 2 !
51: CONST CO17ND2 : CO : ND : !

Example references (1 of 1; assessments first):

CO19ND5 (Co–Nd)

Names (3): corpus: corpus:phase:co-nd:co19nd5
paper: paper:10.1016/j.jallcom.2006.08.081:Co19Nd5
tdb: tdb:CoNd-07Liu.tdb:CO19ND5

TDB models of CO19ND5 (1): PHASE and CONSTITUENT statements as written

CoNd-07Liu.tdb: CO19ND5, type code %A, sha256 9a16a634620fd2a3…

60: PHASE CO19ND5 %A 2 19 5 !
61: CONST CO19ND5 : CO : ND : !

Example references (1 of 1; assessments first):

CO2ND_C15 (Co–Nd)

Names (3): corpus: corpus:phase:co-nd:co2nd-c15
paper: paper:10.1016/j.jallcom.2006.08.081:Co2Nd
tdb: tdb:CoNd-07Liu.tdb:CO2ND_C15

TDB models of CO2ND_C15 (1): PHASE and CONSTITUENT statements as written

CoNd-07Liu.tdb: CO2ND_C15, type code %A, sha256 9a16a634620fd2a3…

76: PHASE CO2ND_C15 %A 2 2 1 !
77: CONST CO2ND_C15 : CO : ND : !

Example references (1 of 1; assessments first):

CO2ND5 (Co–Nd)

Names (3): corpus: corpus:phase:co-nd:co2nd5
paper: paper:10.1016/j.jallcom.2006.08.081:Co2Nd5
tdb: tdb:CoNd-07Liu.tdb:CO2ND5

TDB models of CO2ND5 (1): PHASE and CONSTITUENT statements as written

CoNd-07Liu.tdb: CO2ND5, type code %, sha256 9a16a634620fd2a3…

96: PHASE CO2ND5 % 2 2 5 !
97: CONST CO2ND5 : CO : ND : !

Example references (1 of 1; assessments first):

CO3ND (Co–Nd)

Names (3): corpus: corpus:phase:co-nd:co3nd
paper: paper:10.1016/j.jallcom.2006.08.081:Co3Nd
tdb: tdb:CoNd-07Liu.tdb:CO3ND

TDB models of CO3ND (1): PHASE and CONSTITUENT statements as written

CoNd-07Liu.tdb: CO3ND, type code %A, sha256 9a16a634620fd2a3…

71: PHASE CO3ND %A 2 3 1 !
72: CONST CO3ND : CO : ND : !

Example references (1 of 1; assessments first):

CO3ND2_HT (Co–Nd)

Names (3): corpus: corpus:phase:co-nd:co3nd2-ht
paper: paper:10.1016/j.jallcom.2006.08.081:βCo3Nd2
tdb: tdb:CoNd-07Liu.tdb:CO3ND2_HT

TDB models of CO3ND2_HT (1): PHASE and CONSTITUENT statements as written

CoNd-07Liu.tdb: CO3ND2_HT, type code %, sha256 9a16a634620fd2a3…

86: PHASE CO3ND2_HT % 2 3 2 !
87: CONST CO3ND2_HT : CO : ND : !

Example references (1 of 1; assessments first):

CO3ND2_LT (Co–Nd)

Names (3): corpus: corpus:phase:co-nd:co3nd2-lt
paper: paper:10.1016/j.jallcom.2006.08.081:αCo3Nd2
tdb: tdb:CoNd-07Liu.tdb:CO3ND2_LT

TDB models of CO3ND2_LT (1): PHASE and CONSTITUENT statements as written

CoNd-07Liu.tdb: CO3ND2_LT, type code %, sha256 9a16a634620fd2a3…

81: PHASE CO3ND2_LT % 2 3 2 !
82: CONST CO3ND2_LT : CO : ND : !

Example references (1 of 1; assessments first):

CO3ND4 (Co–Nd)

Names (3): corpus: corpus:phase:co-nd:co3nd4
paper: paper:10.1016/j.jallcom.2006.08.081:Co3Nd4
tdb: tdb:CoNd-07Liu.tdb:CO3ND4

TDB models of CO3ND4 (1): PHASE and CONSTITUENT statements as written

CoNd-07Liu.tdb: CO3ND4, type code %, sha256 9a16a634620fd2a3…

91: PHASE CO3ND4 % 2 3 4 !
92: CONST CO3ND4 : CO : ND : !

Example references (1 of 1; assessments first):

CO5ND_D2D (Co–Nd)

Names (3): corpus: corpus:phase:co-nd:co5nd-d2d
paper: paper:10.1016/j.jallcom.2006.08.081:Co5Nd
tdb: tdb:CoNd-07Liu.tdb:CO5ND_D2D

TDB models of CO5ND_D2D (1): PHASE and CONSTITUENT statements as written

CoNd-07Liu.tdb: CO5ND_D2D, type code %A, sha256 9a16a634620fd2a3…

55: PHASE CO5ND_D2D %A 2 5 1 !
56: CONST CO5ND_D2D : CO : ND : !

Example references (1 of 1; assessments first):

CO7ND2 (Co–Nd)

Names (3): corpus: corpus:phase:co-nd:co7nd2
paper: paper:10.1016/j.jallcom.2006.08.081:Co7Nd2
tdb: tdb:CoNd-07Liu.tdb:CO7ND2

TDB models of CO7ND2 (1): PHASE and CONSTITUENT statements as written

CoNd-07Liu.tdb: CO7ND2, type code %A, sha256 9a16a634620fd2a3…

66: PHASE CO7ND2 %A 2 7 2 !
67: CONST CO7ND2 : CO : ND : !

Example references (1 of 1; assessments first):

COND3_D011 (Co–Nd)

Names (5): corpus: corpus:phase:co-nd:cond3-d011
mp: mp:mp-aaackycx
oqmd: oqmd:oqmd-663685
paper: paper:10.1016/j.jallcom.2006.08.081:CoNd3
tdb: tdb:CoNd-07Liu.tdb:COND3_D011

TDB models of COND3_D011 (1): PHASE and CONSTITUENT statements as written

CoNd-07Liu.tdb: COND3_D011, type code %A, sha256 9a16a634620fd2a3…

101: PHASE COND3_D011 %A 2 1 3 !
102: CONST COND3_D011 : CO : ND : !

Example references (1 of 1; assessments first):

DHCP (Co–Nd)

Names (4): corpus: corpus:phase:co-nd:dhcp-a3, corpus:phase:co-nd:dhcp
paper: paper:10.1016/j.jallcom.2006.08.081:dhcp(Nd)
tdb: tdb:CoNd-07Liu.tdb:DHCP

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

CoNd-07Liu.tdb: DHCP, type code %, sha256 9a16a634620fd2a3…

45: PHASE DHCP % 1 1 !
46: CONST DHCP : CO ND% : !

Example references (1 of 1; assessments first):

FCC_A1 (Co–Nd)

Names (3): corpus: corpus:phase:co-nd:fcc-a1
paper: paper:10.1016/j.jallcom.2006.08.081:fcc(Co)
tdb: tdb:CoNd-07Liu.tdb:FCC_A1

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

CoNd-07Liu.tdb: FCC_A1, type code %A, sha256 9a16a634620fd2a3…

30: PHASE FCC_A1 %A 2 1 1 !
31: CONST FCC_A1 : CO% ND : VA : !

Example references (1 of 1; assessments first):

HCP_A3 (Co–Nd)

Names (2): corpus: corpus:phase:co-nd:hcp-a3
tdb: tdb:CoNd-07Liu.tdb:HCP_A3

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

CoNd-07Liu.tdb: HCP_A3, type code %A, sha256 9a16a634620fd2a3…

40: PHASE HCP_A3 %A 2 1 0.5 !
41: CONST HCP_A3 : CO% ND : VA : !

Example references (1 of 1; assessments first):

LIQUID (Co–Nd)

Names (3): corpus: corpus:phase:co-nd:liquid
paper: paper:10.1016/j.jallcom.2006.08.081:liq.
tdb: tdb:CoNd-07Liu.tdb:LIQUID

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

CoNd-07Liu.tdb: LIQUID, type code %, sha256 9a16a634620fd2a3…

25: PHASE LIQUID:L % 1 1 !
26: CONST LIQUID:L : CO ND : !

Example references (2 of 2; assessments first):