Al–Nb phases

15 phases (tier A 8, liquid 1, needs_review 4, unresolved_no_candidates 2); 11 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–Nb system page · Markdown · field reference

Phases of the Al–Nb system (15)
Phase	Structure	Basis	Stability (calculated)	Literature values	TDB models
AL3NB_D022 phase:al-nb:al3nb-d022	Al3Ti · D0_22 · tI8 · I4/mmm (139)	tier A: standard phase name	stable in 6 of 6 calculated diagram(s): 300–2000.79 K, x(Nb) 0.24856–0.25816	42	6
ALNB3_A15 phase:al-nb:alnb3-a15	Cr3Si · A15 · cP8 · Pm-3n (223)	tier A: standard phase name	stable in 6 of 6 calculated diagram(s): 300–2335.05 K, x(Nb) 0.74601–0.84988	24	6
BCC_A2 phase:al-nb:bcc-a2	W · A2 · cI2 · Im-3m (229)	tier A: standard phase name	stable in 6 of 6 calculated diagram(s): 300–4000 K, x(Nb) 0.31291–1	12	9
B2_BCC phase:al-nb:bcc-b2	CsCl · B2 · cP2 · Pm-3m (221)	tier A: standard phase name	stable in 3 of 3 calculated diagram(s): 300–3998.76 K, x(Nb) 0.52511–1	0	3
SIGMA_D8B phase:al-nb:d8b-sigma	sigma-CrFe · D8_b · tP30 · P4_2/mnm (136)	tier A: standard phase name	stable in 5 of 5 calculated diagram(s): 300–2212.73 K, x(Nb) 0.52335–0.71072	24	5
SIGMA_DIS phase:al-nb:dis-sigma		needs_review	not stable in 1 calculated diagram(s)	0	1
FCC_A1 phase:al-nb:fcc-a1	Cu · A1 · cF4 · Fm-3m (225)	tier A: standard phase name	stable in 6 of 6 calculated diagram(s): 300–934.57 K, x(Nb) 0–0.00166	16	6
HCP_A3 phase:al-nb:hcp-a3	Mg · A3 · hP2 · P6_3/mmc (194)	tier A: standard phase name	not stable in 6 calculated diagram(s)	0	6
LIQUID phase:al-nb:liquid	liquid	liquid	stable in 6 of 6 calculated diagram(s): 927.57–4000 K, x(Nb) 0–1	69	6
SIGMA_OLD phase:al-nb:old-sigma	sigma-CrFe · D8_b · tP30 · P4_2/mnm (136)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–2237.63 K, x(Nb) 0.59625–0.72251	0	1
SIG2SL phase:al-nb:sig2sl		needs_review	stable in 1 of 1 calculated diagram(s): 300–2210 K, x(Nb) 0.55259–0.69154	0	1
SIG2SL3 phase:al-nb:sig2sl3		needs_review	stable in 1 of 1 calculated diagram(s): 300.39–2210 K, x(Nb) 0.55259–0.69154	0	1
SIG2SL3X phase:al-nb:sig2sl3x		unresolved_no_candidates	not stable in 1 calculated diagram(s)	0	1
SIG2SL5 phase:al-nb:sig2sl5		needs_review	stable in 1 of 1 calculated diagram(s): 300.39–2205.36 K, x(Nb) 0.55259–0.69154	0	1
SIG2SL5X phase:al-nb:sig2sl5x		unresolved_no_candidates	not stable in 1 calculated diagram(s)	0	1

AL3NB_D022 (Al–Nb)

Id: phase:al-nb:al3nb-d022; status assigned
Structure: Al3Ti · D0_22 · tI8 · I4/mmm (139); type st:d0-22-al3ti-ti8; tier A: standard phase name; confidence high
Caveat: partitioned order/disorder model in AlNb-09Wit.tdb also describes the disordered state
Caveat: partitioned order/disorder model in AlNb-15He.tdb also describes the disordered state
Caveat: partitioned order/disorder model in AlNb-23Fio.tdb also describes the disordered state
Caveat: partitioned order/disorder model in AlNb-97Ser-LB.tdb also describes the disordered state
Stability: stable in 6 of 6 calculated diagram(s): 300–2000.79 K, x(Nb) 0.24856–0.25816
Literature: 42 values (42 accepted) from 3 papers
Interactive: phase registry entry

Names (11): corpus: corpus:phase:al-nb:al3nb-d022
paper: paper:10.1016/j.jallcom.2008.05.008:ε, paper:10.1016/j.jallcom.2015.02.182:NbAl3, paper:sha256-85fd53a1a176b694:Al3Nb*
system_alias: system_alias:al-nb:epsilon
tdb: tdb:AlNb-08Zhu.tdb:AL3NB_D022, tdb:AlNb-09Wit.tdb:AL3NB_D022, tdb:AlNb-15He.tdb:AL3NB_D022, tdb:AlNb-23Fio.tdb:AL3NB_D022, tdb:AlNb-97Ser-LB.tdb:AL3NB_D022, tdb:AlNb-98Sau.tdb:AL3NB_D022

TDB models of AL3NB_D022 (6): PHASE and CONSTITUENT statements as written

AlNb-08Zhu.tdb: AL3NB_D022, type code %, sha256 a89bdff6737f8160…

51: PHASE AL3NB_D022 % 2 3 1 !
52: CONST AL3NB_D022 : AL : NB : !

AlNb-09Wit.tdb: AL3NB_D022, type code %, sha256 4dcb4c37be340bee…

57: PHASE AL3NB_D022 % 2 3 1 !
58: CONST AL3NB_D022 : AL% NB : AL NB% : !

AlNb-15He.tdb: AL3NB_D022, type code %, sha256 d55f60a76b49353c…

48: PHASE AL3NB_D022 % 2 3 1 !
49: CONST AL3NB_D022 : AL% NB : AL NB% : !

AlNb-23Fio.tdb: AL3NB_D022, type code %, sha256 f8fec1a8af356181…

53: PHASE AL3NB_D022 % 2 3 1 !
54: CONST AL3NB_D022 : AL% NB : AL NB% : !

AlNb-97Ser-LB.tdb: AL3NB_D022, type code %, sha256 b55876dc0b3e6a6b…

48: PHASE AL3NB_D022 % 2 3 1 !
49: CONST AL3NB_D022 : AL% NB : AL NB% : !

AlNb-98Sau.tdb: AL3NB_D022, type code %, sha256 62c0666d7a7aae9c…

57: PHASE AL3NB_D022 % 2 3 1 !
58: CONST AL3NB_D022 : AL : NB% : !

Example references (9 of 9; assessments first):

doi:10.1016/j.jallcom.2008.05.008 V.T. Witusiewicz, A.A. Bondar, U. Hecht, T.Ya. Velikanova, The Al–B–Nb–Ti system, Journal of Alloys and Compounds 472, 133-161 (2009).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2015.02.182 Cuiyun He, Frank Stein, Martin Palm, Thermodynamic description of the systems Co–Nb, Al–Nb and Co–Al–Nb, Journal of Alloys and Compounds 637, 361-375 (2015).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2007.06.033 Zhijun Zhu, Yong Du, Lijun Zhang, Hailin Chen, Honghui Xu, Chengying Tang, Experimental identification of the degenerated equilibrium and thermodynamic modeling in the Al–Nb system, Journal of Alloys and Compounds 460, 632-638 (2008).
assessment that models this phase; cited as the source of values for this phase
doi:10.1016/j.calphad.2022.102522 J.M. Fiorani, M. Badran, J.M. Joubert, J.C. Crivello, A.A.A.P. da Silva, G.C. Coelho et al., New approach to the compound energy formalism (NACEF) Part II. Thermodynamic modelling of the Al–Nb system supported by first-principles calculations, Calphad 80, 102522 (2023).
assessment that models this phase
doi:10.1002/bbpc.19981020923 C. Servant, I. Ansara, Thermodynamic assessment of the Al‐Nb‐Ti system, Ber Bunsenges Phys Chem 102, 1189-1205 (1998).
cited as the source of values for this phase
doi:10.1051/jcp/1997940869 C Servant, I Ansara, Thermodynamic assessment of the Al-Nb system, J. Chim. Phys. 94, 869-888 (1997).
cited as the source of values for this phase
doi:10.1016/0022-5088(80)90120-4 J.L. Jorda, R. Flükiger, J. Muller, A New metallurgical investigation of the niobium-aluminium system, Journal of the Less Common Metals 75, 227-239 (1980).
cited as the source of values for this phase
doi:10.1016/j.jallcom.2014.02.045 F. Stein, C. He, I. Wossack, The liquidus surface of the Cr–Al–Nb system and re-investigation of the Cr–Nb and Al–Cr phase diagrams, Journal of Alloys and Compounds 598, 253-265 (2014).
cited as the source of values for this phase
doi:10.1149/1.2124218 I. Shilo, H. F. Franzen, R. A. Schiffman, Enthalpies of Formation of Niobium Aluminides as Determined by the Knudsen Effusion Method, J. Electrochem. Soc. 129, 1608-1613 (1982).
cited as the source of values for this phase

ALNB3_A15 (Al–Nb)

Id: phase:al-nb:alnb3-a15; status assigned
Structure: Cr3Si · A15 · cP8 · Pm-3n (223); type st:a15-cr3si-cp8; tier A: standard phase name; confidence high
Caveat: partitioned order/disorder model in AlNb-09Wit.tdb also describes the disordered state
Caveat: partitioned order/disorder model in AlNb-23Fio.tdb also describes the disordered state
Caveat: partitioned order/disorder model in AlNb-97Ser-LB.tdb also describes the disordered state
Stability: stable in 6 of 6 calculated diagram(s): 300–2335.05 K, x(Nb) 0.74601–0.84988
Literature: 24 values (24 accepted) from 3 papers
Interactive: phase registry entry

Names (10): corpus: corpus:phase:al-nb:alnb3-a15
paper: paper:10.1016/j.jallcom.2008.05.008:δ, paper:10.1016/j.jallcom.2015.02.182:Nb3Al, paper:sha256-85fd53a1a176b694:AlNb3**
tdb: tdb:AlNb-08Zhu.tdb:ALNB3_A15, tdb:AlNb-09Wit.tdb:ALNB3_A15, tdb:AlNb-15He.tdb:ALNB3_A15, tdb:AlNb-23Fio.tdb:ALNB3_A15, tdb:AlNb-97Ser-LB.tdb:ALNB3_A15, tdb:AlNb-98Sau.tdb:ALNB3_A15

TDB models of ALNB3_A15 (6): PHASE and CONSTITUENT statements as written

AlNb-08Zhu.tdb: ALNB3_A15, type code %, sha256 a89bdff6737f8160…

61: PHASE ALNB3_A15 % 2 1 3 !
62: CONST ALNB3_A15 : AL NB : NB : !

AlNb-09Wit.tdb: ALNB3_A15, type code %, sha256 4dcb4c37be340bee…

67: PHASE ALNB3_A15 % 2 1 3 !
68: CONST ALNB3_A15 : AL% NB : AL NB% : !

AlNb-15He.tdb: ALNB3_A15, type code %, sha256 d55f60a76b49353c…

58: PHASE ALNB3_A15 % 2 1 3 !
59: CONST ALNB3_A15 : AL% NB : NB : !

AlNb-23Fio.tdb: ALNB3_A15, type code %, sha256 f8fec1a8af356181…

58: PHASE ALNB3_A15 % 2 3 1 !
59: CONST ALNB3_A15 : AL NB% : AL% NB : !

AlNb-97Ser-LB.tdb: ALNB3_A15, type code %, sha256 b55876dc0b3e6a6b…

58: PHASE ALNB3_A15 % 2 1 3 !
59: CONST ALNB3_A15 : AL% NB : AL NB% : !

AlNb-98Sau.tdb: ALNB3_A15, type code %, sha256 62c0666d7a7aae9c…

67: PHASE ALNB3_A15 % 2 1 3 !
68: CONST ALNB3_A15 : AL% NB : NB : !

Example references (7 of 7; assessments first):

doi:10.1016/j.jallcom.2008.05.008 V.T. Witusiewicz, A.A. Bondar, U. Hecht, T.Ya. Velikanova, The Al–B–Nb–Ti system, Journal of Alloys and Compounds 472, 133-161 (2009).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2015.02.182 Cuiyun He, Frank Stein, Martin Palm, Thermodynamic description of the systems Co–Nb, Al–Nb and Co–Al–Nb, Journal of Alloys and Compounds 637, 361-375 (2015).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2007.06.033 Zhijun Zhu, Yong Du, Lijun Zhang, Hailin Chen, Honghui Xu, Chengying Tang, Experimental identification of the degenerated equilibrium and thermodynamic modeling in the Al–Nb system, Journal of Alloys and Compounds 460, 632-638 (2008).
assessment that models this phase; cited as the source of values for this phase
doi:10.1016/j.calphad.2022.102522 J.M. Fiorani, M. Badran, J.M. Joubert, J.C. Crivello, A.A.A.P. da Silva, G.C. Coelho et al., New approach to the compound energy formalism (NACEF) Part II. Thermodynamic modelling of the Al–Nb system supported by first-principles calculations, Calphad 80, 102522 (2023).
assessment that models this phase
doi:10.1002/bbpc.19981020923 C. Servant, I. Ansara, Thermodynamic assessment of the Al‐Nb‐Ti system, Ber Bunsenges Phys Chem 102, 1189-1205 (1998).
cited as the source of values for this phase
doi:10.1016/0022-5088(80)90120-4 J.L. Jorda, R. Flükiger, J. Muller, A New metallurgical investigation of the niobium-aluminium system, Journal of the Less Common Metals 75, 227-239 (1980).
cited as the source of values for this phase
doi:10.1051/jcp/1997940869 C Servant, I Ansara, Thermodynamic assessment of the Al-Nb system, J. Chim. Phys. 94, 869-888 (1997).
cited as the source of values for this phase

BCC_A2 (Al–Nb)

Id: phase:al-nb: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 6 of 6 calculated diagram(s): 300–4000 K, x(Nb) 0.31291–1
Literature: 12 values (12 accepted) from 3 papers
Interactive: phase registry entry

Names (14): corpus: corpus:phase:al-nb:bcc-a2
paper: paper:10.1016/j.jallcom.2008.05.008:β, paper:10.1016/j.jallcom.2015.02.182:(Nb), paper:sha256-85fd53a1a176b694:bcc-A2
system_alias: system_alias:al-nb:beta
tdb: tdb:AlNb-08Zhu.tdb:A2_BCC, tdb:AlNb-08Zhu.tdb:BCC_A2, tdb:AlNb-09Wit.tdb:A2_BCC, tdb:AlNb-09Wit.tdb:BCC_A2, tdb:AlNb-15He.tdb:BCC_A2, tdb:AlNb-23Fio.tdb:BCC_A2, tdb:AlNb-97Ser-LB.tdb:BCC_A2, tdb:AlNb-98Sau.tdb:A2_BCC, tdb:AlNb-98Sau.tdb:BCC_A2

TDB models of BCC_A2 (9): PHASE and CONSTITUENT statements as written

AlNb-08Zhu.tdb: A2_BCC, type code %, sha256 a89bdff6737f8160…

36: PHASE A2_BCC % 2 1 3 !
37: CONST A2_BCC : AL NB VA : VA : !

AlNb-08Zhu.tdb: BCC_A2, type code %, sha256 a89bdff6737f8160…

31: PHASE BCC_A2 % 2 1 3 !
32: CONST BCC_A2 : AL NB : VA : !

AlNb-09Wit.tdb: A2_BCC, type code %, sha256 4dcb4c37be340bee…

42: PHASE A2_BCC % 2 1 3 !
43: CONST A2_BCC : AL NB : VA : !

AlNb-09Wit.tdb: BCC_A2, type code %, sha256 4dcb4c37be340bee…

37: PHASE BCC_A2 % 2 1 3 !
38: CONST BCC_A2 : AL NB : VA : !

AlNb-15He.tdb: BCC_A2, type code %B, sha256 d55f60a76b49353c…

38: PHASE BCC_A2 %B 2 1 3 !
39: CONST BCC_A2 : AL NB : VA : !

AlNb-23Fio.tdb: BCC_A2, type code %, sha256 f8fec1a8af356181…

43: PHASE BCC_A2 % 2 1 3 !
44: CONST BCC_A2 : AL NB : VA : !

AlNb-97Ser-LB.tdb: BCC_A2, type code %, sha256 b55876dc0b3e6a6b…

38: PHASE BCC_A2 % 2 1 3 !
39: CONST BCC_A2 : AL NB : VA : !

AlNb-98Sau.tdb: A2_BCC, type code %, sha256 62c0666d7a7aae9c…

42: PHASE A2_BCC % 2 1 3 !
43: CONST A2_BCC : AL NB VA : VA : !

AlNb-98Sau.tdb: BCC_A2, type code %, sha256 62c0666d7a7aae9c…

37: PHASE BCC_A2 % 2 1 3 !
38: CONST BCC_A2 : AL NB : VA : !

Example references (7 of 7; assessments first):

doi:10.1016/j.jallcom.2008.05.008 V.T. Witusiewicz, A.A. Bondar, U. Hecht, T.Ya. Velikanova, The Al–B–Nb–Ti system, Journal of Alloys and Compounds 472, 133-161 (2009).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2015.02.182 Cuiyun He, Frank Stein, Martin Palm, Thermodynamic description of the systems Co–Nb, Al–Nb and Co–Al–Nb, Journal of Alloys and Compounds 637, 361-375 (2015).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2007.06.033 Zhijun Zhu, Yong Du, Lijun Zhang, Hailin Chen, Honghui Xu, Chengying Tang, Experimental identification of the degenerated equilibrium and thermodynamic modeling in the Al–Nb system, Journal of Alloys and Compounds 460, 632-638 (2008).
assessment that models this phase; cited as the source of values for this phase
doi:10.1016/j.calphad.2022.102522 J.M. Fiorani, M. Badran, J.M. Joubert, J.C. Crivello, A.A.A.P. da Silva, G.C. Coelho et al., New approach to the compound energy formalism (NACEF) Part II. Thermodynamic modelling of the Al–Nb system supported by first-principles calculations, Calphad 80, 102522 (2023).
assessment that models this phase
doi:10.1002/bbpc.19981020923 C. Servant, I. Ansara, Thermodynamic assessment of the Al‐Nb‐Ti system, Ber Bunsenges Phys Chem 102, 1189-1205 (1998).
cited as the source of values for this phase
doi:10.1016/0022-5088(80)90120-4 J.L. Jorda, R. Flükiger, J. Muller, A New metallurgical investigation of the niobium-aluminium system, Journal of the Less Common Metals 75, 227-239 (1980).
cited as the source of values for this phase
doi:10.1051/jcp/1997940869 C Servant, I Ansara, Thermodynamic assessment of the Al-Nb system, J. Chim. Phys. 94, 869-888 (1997).
cited as the source of values for this phase

B2_BCC (Al–Nb)

Id: phase:al-nb:bcc-b2; status assigned
Structure: CsCl · B2 · cP2 · Pm-3m (221); type st:b2-cscl-cp2; tier A: standard phase name; confidence high
Caveat: AlNb-08Zhu.tdb: ordered phase with disordered part A2_BCC (order/disorder model)
Caveat: AlNb-09Wit.tdb: ordered phase with disordered part A2_BCC (order/disorder model)
Caveat: AlNb-98Sau.tdb: ordered phase with disordered part A2_BCC (order/disorder model)
Caveat: partitioned order/disorder model in AlNb-08Zhu.tdb also describes the disordered state
Caveat: partitioned order/disorder model in AlNb-09Wit.tdb also describes the disordered state
Caveat: partitioned order/disorder model in AlNb-98Sau.tdb also describes the disordered state
Stability: stable in 3 of 3 calculated diagram(s): 300–3998.76 K, x(Nb) 0.52511–1
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:al-nb:bcc-b2
tdb: tdb:AlNb-08Zhu.tdb:B2_BCC, tdb:AlNb-09Wit.tdb:B2_BCC, tdb:AlNb-98Sau.tdb:B2_BCC

TDB models of B2_BCC (3): PHASE and CONSTITUENT statements as written

AlNb-08Zhu.tdb: B2_BCC, type code %O, sha256 a89bdff6737f8160…

41: PHASE B2_BCC %O 3 0.5 0.5 3 !
42: CONST B2_BCC : AL% NB VA : AL NB% VA : VA : !

AlNb-09Wit.tdb: B2_BCC, type code %O, sha256 4dcb4c37be340bee…

47: PHASE B2_BCC %O 3 0.5 0.5 3 !
48: CONST B2_BCC : AL% NB : AL NB% : VA : !

AlNb-98Sau.tdb: B2_BCC, type code %O, sha256 62c0666d7a7aae9c…

47: PHASE B2_BCC %O 3 0.5 0.5 3 !
48: CONST B2_BCC : AL% NB VA : AL NB% VA : VA : !

Example references (2 of 2; assessments first):

doi:10.1016/j.jallcom.2007.06.033 Zhijun Zhu, Yong Du, Lijun Zhang, Hailin Chen, Honghui Xu, Chengying Tang, Experimental identification of the degenerated equilibrium and thermodynamic modeling in the Al–Nb system, Journal of Alloys and Compounds 460, 632-638 (2008).
assessment that models this phase
doi:10.1016/j.jallcom.2008.05.008 V.T. Witusiewicz, A.A. Bondar, U. Hecht, T.Ya. Velikanova, The Al–B–Nb–Ti system, Journal of Alloys and Compounds 472, 133-161 (2009).
assessment that models this phase

SIGMA_D8B (Al–Nb)

Id: phase:al-nb:d8b-sigma; status assigned
Structure: sigma-CrFe · D8_b · tP30 · P4_2/mnm (136); type st:d8-b-sigma-crfe-tp30; tier A: standard phase name; confidence high
Caveat: partitioned order/disorder model in AlNb-08Zhu.tdb also describes the disordered state
Caveat: partitioned order/disorder model in AlNb-09Wit.tdb also describes the disordered state
Caveat: partitioned order/disorder model in AlNb-15He.tdb also describes the disordered state
Caveat: partitioned order/disorder model in AlNb-23Fio.tdb also describes the disordered state
Caveat: partitioned order/disorder model in AlNb-97Ser-LB.tdb also describes the disordered state
Stability: stable in 5 of 5 calculated diagram(s): 300–2212.73 K, x(Nb) 0.52335–0.71072
Literature: 24 values (24 accepted) from 3 papers
Interactive: phase registry entry

Names (10): corpus: corpus:phase:al-nb:d8b-sigma, corpus:phase:al-nb:sigma-d8b
paper: paper:10.1016/j.jallcom.2008.05.008:σ, paper:10.1016/j.jallcom.2015.02.182:Nb2Al, paper:sha256-85fd53a1a176b694:σ
tdb: tdb:AlNb-08Zhu.tdb:SIGMA_D8B, tdb:AlNb-09Wit.tdb:SIGMA_D8B, tdb:AlNb-15He.tdb:SIGMA_D8B, tdb:AlNb-23Fio.tdb:SIGMA_D8B, tdb:AlNb-97Ser-LB.tdb:SIGMA_D8B

TDB models of SIGMA_D8B (5): PHASE and CONSTITUENT statements as written

AlNb-08Zhu.tdb: SIGMA_D8B, type code %, sha256 a89bdff6737f8160…

56: PHASE SIGMA_D8B % 3 10 4 16 !
57: CONST SIGMA_D8B : AL NB : NB : AL NB : !

AlNb-09Wit.tdb: SIGMA_D8B, type code %, sha256 4dcb4c37be340bee…

62: PHASE SIGMA_D8B % 3 10 4 16 !
63: CONST SIGMA_D8B : AL NB : NB : AL NB : !

AlNb-15He.tdb: SIGMA_D8B, type code %, sha256 d55f60a76b49353c…

53: PHASE SIGMA_D8B % 3 10 4 16 !
54: CONST SIGMA_D8B : AL NB : NB : AL NB : !

AlNb-23Fio.tdb: SIGMA_D8B, type code %S, sha256 f8fec1a8af356181…

68: PHASE SIGMA_D8B %S 5 2 4 8 8 8 !
69: CONST SIGMA_D8B : AL NB : AL NB : AL NB : AL NB : AL NB : !

AlNb-97Ser-LB.tdb: SIGMA_D8B, type code %, sha256 b55876dc0b3e6a6b…

53: PHASE SIGMA_D8B % 3 10 4 16 !
54: CONST SIGMA_D8B : AL NB : NB : AL NB : !

Example references (7 of 7; assessments first):

doi:10.1016/j.jallcom.2008.05.008 V.T. Witusiewicz, A.A. Bondar, U. Hecht, T.Ya. Velikanova, The Al–B–Nb–Ti system, Journal of Alloys and Compounds 472, 133-161 (2009).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2015.02.182 Cuiyun He, Frank Stein, Martin Palm, Thermodynamic description of the systems Co–Nb, Al–Nb and Co–Al–Nb, Journal of Alloys and Compounds 637, 361-375 (2015).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2007.06.033 Zhijun Zhu, Yong Du, Lijun Zhang, Hailin Chen, Honghui Xu, Chengying Tang, Experimental identification of the degenerated equilibrium and thermodynamic modeling in the Al–Nb system, Journal of Alloys and Compounds 460, 632-638 (2008).
assessment that models this phase; cited as the source of values for this phase
doi:10.1016/j.calphad.2022.102522 J.M. Fiorani, M. Badran, J.M. Joubert, J.C. Crivello, A.A.A.P. da Silva, G.C. Coelho et al., New approach to the compound energy formalism (NACEF) Part II. Thermodynamic modelling of the Al–Nb system supported by first-principles calculations, Calphad 80, 102522 (2023).
assessment that models this phase
doi:10.1002/bbpc.19981020923 C. Servant, I. Ansara, Thermodynamic assessment of the Al‐Nb‐Ti system, Ber Bunsenges Phys Chem 102, 1189-1205 (1998).
cited as the source of values for this phase
doi:10.1016/0022-5088(80)90120-4 J.L. Jorda, R. Flükiger, J. Muller, A New metallurgical investigation of the niobium-aluminium system, Journal of the Less Common Metals 75, 227-239 (1980).
cited as the source of values for this phase
doi:10.1051/jcp/1997940869 C Servant, I Ansara, Thermodynamic assessment of the Al-Nb system, J. Chim. Phys. 94, 869-888 (1997).
cited as the source of values for this phase

SIGMA_DIS (Al–Nb)

Id: phase:al-nb:dis-sigma; status needs_review
No structure assigned. Why: unrecognised_name_tokens:DIS
Candidate (name_token): sigma-CrFe · D8_b · tP30 · P4_2/mnm (136) — Strukturbericht/word 'D8B' in the TDB name
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:al-nb:dis-sigma
tdb: tdb:AlNb-23Fio.tdb:SIGMA_DIS

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

AlNb-23Fio.tdb: SIGMA_DIS, type code %, sha256 f8fec1a8af356181…

63: PHASE SIGMA_DIS % 1 1 !
64: CONST SIGMA_DIS : AL NB : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2022.102522 J.M. Fiorani, M. Badran, J.M. Joubert, J.C. Crivello, A.A.A.P. da Silva, G.C. Coelho et al., New approach to the compound energy formalism (NACEF) Part II. Thermodynamic modelling of the Al–Nb system supported by first-principles calculations, Calphad 80, 102522 (2023).
assessment that models this phase

FCC_A1 (Al–Nb)

Id: phase:al-nb:fcc-a1; status assigned
Structure: Cu · A1 · cF4 · Fm-3m (225); type st:a1-cu-cf4; tier A: standard phase name; confidence high
Stability: stable in 6 of 6 calculated diagram(s): 300–934.57 K, x(Nb) 0–0.00166
Literature: 16 values (16 accepted) from 3 papers
Interactive: phase registry entry

Names (10): corpus: corpus:phase:al-nb:fcc-a1
paper: paper:10.1016/j.jallcom.2008.05.008:(αAl), paper:10.1016/j.jallcom.2015.02.182:(Al), paper:sha256-85fd53a1a176b694:fcc-Al
tdb: tdb:AlNb-08Zhu.tdb:FCC_A1, tdb:AlNb-09Wit.tdb:FCC_A1, tdb:AlNb-15He.tdb:FCC_A1, tdb:AlNb-23Fio.tdb:FCC_A1, tdb:AlNb-97Ser-LB.tdb:FCC_A1, tdb:AlNb-98Sau.tdb:FCC_A1

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

AlNb-08Zhu.tdb: FCC_A1, type code %, sha256 a89bdff6737f8160…

26: PHASE FCC_A1 % 2 1 1 !
27: CONST FCC_A1 : AL NB : VA : !

AlNb-09Wit.tdb: FCC_A1, type code %, sha256 4dcb4c37be340bee…

32: PHASE FCC_A1 % 2 1 1 !
33: CONST FCC_A1 : AL NB : VA : !

AlNb-15He.tdb: FCC_A1, type code %A, sha256 d55f60a76b49353c…

33: PHASE FCC_A1 %A 2 1 1 !
34: CONST FCC_A1 : AL NB : VA : !

AlNb-23Fio.tdb: FCC_A1, type code %, sha256 f8fec1a8af356181…

38: PHASE FCC_A1 % 2 1 1 !
39: CONST FCC_A1 : AL NB : VA : !

AlNb-97Ser-LB.tdb: FCC_A1, type code %, sha256 b55876dc0b3e6a6b…

33: PHASE FCC_A1 % 2 1 1 !
34: CONST FCC_A1 : AL NB : VA : !

AlNb-98Sau.tdb: FCC_A1, type code %, sha256 62c0666d7a7aae9c…

32: PHASE FCC_A1 % 2 1 1 !
33: CONST FCC_A1 : AL NB : VA : !

Example references (7 of 7; assessments first):

doi:10.1016/j.jallcom.2008.05.008 V.T. Witusiewicz, A.A. Bondar, U. Hecht, T.Ya. Velikanova, The Al–B–Nb–Ti system, Journal of Alloys and Compounds 472, 133-161 (2009).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2015.02.182 Cuiyun He, Frank Stein, Martin Palm, Thermodynamic description of the systems Co–Nb, Al–Nb and Co–Al–Nb, Journal of Alloys and Compounds 637, 361-375 (2015).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2007.06.033 Zhijun Zhu, Yong Du, Lijun Zhang, Hailin Chen, Honghui Xu, Chengying Tang, Experimental identification of the degenerated equilibrium and thermodynamic modeling in the Al–Nb system, Journal of Alloys and Compounds 460, 632-638 (2008).
assessment that models this phase; cited as the source of values for this phase
doi:10.1016/j.calphad.2022.102522 J.M. Fiorani, M. Badran, J.M. Joubert, J.C. Crivello, A.A.A.P. da Silva, G.C. Coelho et al., New approach to the compound energy formalism (NACEF) Part II. Thermodynamic modelling of the Al–Nb system supported by first-principles calculations, Calphad 80, 102522 (2023).
assessment that models this phase
doi:10.1002/bbpc.19981020923 C. Servant, I. Ansara, Thermodynamic assessment of the Al‐Nb‐Ti system, Ber Bunsenges Phys Chem 102, 1189-1205 (1998).
cited as the source of values for this phase
doi:10.1051/jcp/1997940869 C Servant, I Ansara, Thermodynamic assessment of the Al-Nb system, J. Chim. Phys. 94, 869-888 (1997).
cited as the source of values for this phase
doi:10.1149/1.2124218 I. Shilo, H. F. Franzen, R. A. Schiffman, Enthalpies of Formation of Niobium Aluminides as Determined by the Knudsen Effusion Method, J. Electrochem. Soc. 129, 1608-1613 (1982).
cited as the source of values for this phase

HCP_A3 (Al–Nb)

Id: phase:al-nb: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: not stable in 6 calculated diagram(s)
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:al-nb:hcp-a3
tdb: tdb:AlNb-08Zhu.tdb:HCP_A3, tdb:AlNb-09Wit.tdb:HCP_A3, tdb:AlNb-15He.tdb:HCP_A3, tdb:AlNb-23Fio.tdb:HCP_A3, tdb:AlNb-97Ser-LB.tdb:HCP_A3, tdb:AlNb-98Sau.tdb:HCP_A3

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

AlNb-08Zhu.tdb: HCP_A3, type code %, sha256 a89bdff6737f8160…

46: PHASE HCP_A3 % 2 1 0.5 !
47: CONST HCP_A3 : AL NB : VA : !

AlNb-09Wit.tdb: HCP_A3, type code %, sha256 4dcb4c37be340bee…

52: PHASE HCP_A3 % 2 1 0.5 !
53: CONST HCP_A3 : AL NB : VA : !

AlNb-15He.tdb: HCP_A3, type code %A, sha256 d55f60a76b49353c…

43: PHASE HCP_A3 %A 2 1 0.5 !
44: CONST HCP_A3 : AL NB : VA : !

AlNb-23Fio.tdb: HCP_A3, type code %, sha256 f8fec1a8af356181…

48: PHASE HCP_A3 % 2 1 0.5 !
49: CONST HCP_A3 : AL NB : VA : !

AlNb-97Ser-LB.tdb: HCP_A3, type code %, sha256 b55876dc0b3e6a6b…

43: PHASE HCP_A3 % 2 1 0.5 !
44: CONST HCP_A3 : AL NB : VA : !

AlNb-98Sau.tdb: HCP_A3, type code %, sha256 62c0666d7a7aae9c…

52: PHASE HCP_A3 % 2 1 0.5 !
53: CONST HCP_A3 : AL NB : VA : !

Example references (4 of 4; assessments first):

doi:10.1016/j.calphad.2022.102522 J.M. Fiorani, M. Badran, J.M. Joubert, J.C. Crivello, A.A.A.P. da Silva, G.C. Coelho et al., New approach to the compound energy formalism (NACEF) Part II. Thermodynamic modelling of the Al–Nb system supported by first-principles calculations, Calphad 80, 102522 (2023).
assessment that models this phase
doi:10.1016/j.jallcom.2007.06.033 Zhijun Zhu, Yong Du, Lijun Zhang, Hailin Chen, Honghui Xu, Chengying Tang, Experimental identification of the degenerated equilibrium and thermodynamic modeling in the Al–Nb system, Journal of Alloys and Compounds 460, 632-638 (2008).
assessment that models this phase
doi:10.1016/j.jallcom.2008.05.008 V.T. Witusiewicz, A.A. Bondar, U. Hecht, T.Ya. Velikanova, The Al–B–Nb–Ti system, Journal of Alloys and Compounds 472, 133-161 (2009).
assessment that models this phase
doi:10.1016/j.jallcom.2015.02.182 Cuiyun He, Frank Stein, Martin Palm, Thermodynamic description of the systems Co–Nb, Al–Nb and Co–Al–Nb, Journal of Alloys and Compounds 637, 361-375 (2015).
assessment that models this phase

LIQUID (Al–Nb)

Id: phase:al-nb:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 6 of 6 calculated diagram(s): 927.57–4000 K, x(Nb) 0–1
Literature: 69 values (69 accepted) from 4 papers
Interactive: phase registry entry

Names (12): corpus: corpus:phase:al-nb:liquid
paper: paper:10.1016/j.jallcom.2007.06.033:liquid, paper:10.1016/j.jallcom.2008.05.008:L, paper:10.1016/j.jallcom.2015.02.182:L, paper:10.1016/j.jallcom.2015.02.182:liquid, paper:sha256-85fd53a1a176b694:Liquid
tdb: tdb:AlNb-08Zhu.tdb:LIQUID, tdb:AlNb-09Wit.tdb:LIQUID, tdb:AlNb-15He.tdb:LIQUID, tdb:AlNb-23Fio.tdb:LIQUID, tdb:AlNb-97Ser-LB.tdb:LIQUID, tdb:AlNb-98Sau.tdb:LIQUID

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

AlNb-08Zhu.tdb: LIQUID, type code %, sha256 a89bdff6737f8160…

21: PHASE LIQUID:L % 1 1 !
22: CONST LIQUID:L : AL NB : !

AlNb-09Wit.tdb: LIQUID, type code %, sha256 4dcb4c37be340bee…

27: PHASE LIQUID:L % 1 1 !
28: CONST LIQUID:L : AL NB : !

AlNb-15He.tdb: LIQUID, type code %, sha256 d55f60a76b49353c…

28: PHASE LIQUID:L % 1 1 !
29: CONST LIQUID:L : AL NB : !

AlNb-23Fio.tdb: LIQUID, type code %, sha256 f8fec1a8af356181…

33: PHASE LIQUID:L % 1 1 !
34: CONST LIQUID:L : AL NB : !

AlNb-97Ser-LB.tdb: LIQUID, type code %, sha256 b55876dc0b3e6a6b…

28: PHASE LIQUID:L % 1 1 !
29: CONST LIQUID:L : AL NB : !

AlNb-98Sau.tdb: LIQUID, type code %, sha256 62c0666d7a7aae9c…

27: PHASE LIQUID:L % 1 1 !
28: CONST LIQUID:L : AL NB : !

Example references (9 of 9; assessments first):

doi:10.1016/j.jallcom.2008.05.008 V.T. Witusiewicz, A.A. Bondar, U. Hecht, T.Ya. Velikanova, The Al–B–Nb–Ti system, Journal of Alloys and Compounds 472, 133-161 (2009).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2015.02.182 Cuiyun He, Frank Stein, Martin Palm, Thermodynamic description of the systems Co–Nb, Al–Nb and Co–Al–Nb, Journal of Alloys and Compounds 637, 361-375 (2015).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2007.06.033 Zhijun Zhu, Yong Du, Lijun Zhang, Hailin Chen, Honghui Xu, Chengying Tang, Experimental identification of the degenerated equilibrium and thermodynamic modeling in the Al–Nb system, Journal of Alloys and Compounds 460, 632-638 (2008).
assessment that models this phase; cited as the source of values for this phase; reports values for this phase
doi:10.1016/j.calphad.2022.102522 J.M. Fiorani, M. Badran, J.M. Joubert, J.C. Crivello, A.A.A.P. da Silva, G.C. Coelho et al., New approach to the compound energy formalism (NACEF) Part II. Thermodynamic modelling of the Al–Nb system supported by first-principles calculations, Calphad 80, 102522 (2023).
assessment that models this phase
doi:10.1002/bbpc.19981020923 C. Servant, I. Ansara, Thermodynamic assessment of the Al‐Nb‐Ti system, Ber Bunsenges Phys Chem 102, 1189-1205 (1998).
cited as the source of values for this phase
doi:10.1051/jcp/1997940869 C Servant, I Ansara, Thermodynamic assessment of the Al-Nb system, J. Chim. Phys. 94, 869-888 (1997).
cited as the source of values for this phase
doi:10.1016/0022-5088(80)90120-4 J.L. Jorda, R. Flükiger, J. Muller, A New metallurgical investigation of the niobium-aluminium system, Journal of the Less Common Metals 75, 227-239 (1980).
cited as the source of values for this phase
doi:10.1016/j.jallcom.2014.02.045 F. Stein, C. He, I. Wossack, The liquidus surface of the Cr–Al–Nb system and re-investigation of the Cr–Nb and Al–Cr phase diagrams, Journal of Alloys and Compounds 598, 253-265 (2014).
cited as the source of values for this phase
doi:10.1149/1.2124218 I. Shilo, H. F. Franzen, R. A. Schiffman, Enthalpies of Formation of Niobium Aluminides as Determined by the Knudsen Effusion Method, J. Electrochem. Soc. 129, 1608-1613 (1982).
cited as the source of values for this phase

SIGMA_OLD (Al–Nb)

Id: phase:al-nb:old-sigma; status assigned
Structure: sigma-CrFe · D8_b · tP30 · P4_2/mnm (136); type st:d8-b-sigma-crfe-tp30; tier A: standard phase name; confidence high
Stability: stable in 1 of 1 calculated diagram(s): 300–2237.63 K, x(Nb) 0.59625–0.72251
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:al-nb:old-sigma, corpus:phase:al-nb:sigma-old
tdb: tdb:AlNb-98Sau.tdb:SIGMA_OLD

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

AlNb-98Sau.tdb: SIGMA_OLD, type code %, sha256 62c0666d7a7aae9c…

62: PHASE SIGMA_OLD % 3 8 4 18 !
63: CONST SIGMA_OLD : AL : NB : AL NB : !

SIG2SL (Al–Nb)

Id: phase:al-nb:sig2sl; status needs_review
No structure assigned. Why: name_has_descriptive_tokens:SIG2SL; no_structure_token
Candidate (dft_mp): P4_2/mnm (136) — on-hull MP Nb2Al at x(NB)=0.6667
Candidate (dft_oqmd): P42/mnm (136) — on-hull OQMD Al1 Nb2 at x(NB)=0.6667
Stability: stable in 1 of 1 calculated diagram(s): 300–2210 K, x(Nb) 0.55259–0.69154
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:al-nb:sig2sl
tdb: tdb:AlNb-23Fio.tdb:SIG2SL

TDB models of SIG2SL (1): PHASE and CONSTITUENT statements as written

AlNb-23Fio.tdb: SIG2SL, type code %, sha256 f8fec1a8af356181…

73: PHASE SIG2SL % 2 20 10 !
74: CONST SIG2SL : AL NB : AL NB : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2022.102522 J.M. Fiorani, M. Badran, J.M. Joubert, J.C. Crivello, A.A.A.P. da Silva, G.C. Coelho et al., New approach to the compound energy formalism (NACEF) Part II. Thermodynamic modelling of the Al–Nb system supported by first-principles calculations, Calphad 80, 102522 (2023).
assessment that models this phase

SIG2SL3 (Al–Nb)

Id: phase:al-nb:sig2sl3; status needs_review
No structure assigned. Why: name_has_descriptive_tokens:SIG2SL3; no_structure_token
Candidate (dft_mp): P4_2/mnm (136) — on-hull MP Nb2Al at x(NB)=0.6667
Candidate (dft_oqmd): P42/mnm (136) — on-hull OQMD Al1 Nb2 at x(NB)=0.6667
Stability: stable in 1 of 1 calculated diagram(s): 300.39–2210 K, x(Nb) 0.55259–0.69154
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:al-nb:sig2sl3
tdb: tdb:AlNb-23Fio.tdb:SIG2SL3

TDB models of SIG2SL3 (1): PHASE and CONSTITUENT statements as written

AlNb-23Fio.tdb: SIG2SL3, type code %T, sha256 f8fec1a8af356181…

83: PHASE SIG2SL3 %T 3 4 16 10 !
84: CONST SIG2SL3 : AL NB : AL NB : AL NB : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2022.102522 J.M. Fiorani, M. Badran, J.M. Joubert, J.C. Crivello, A.A.A.P. da Silva, G.C. Coelho et al., New approach to the compound energy formalism (NACEF) Part II. Thermodynamic modelling of the Al–Nb system supported by first-principles calculations, Calphad 80, 102522 (2023).
assessment that models this phase

SIG2SL3X (Al–Nb)

Id: phase:al-nb:sig2sl3x; status unresolved_no_candidates
No structure assigned. Why: name_has_descriptive_tokens:SIG2SL3X; no_structure_token
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:al-nb:sig2sl3x
tdb: tdb:AlNb-23Fio.tdb:SIG2SL3X

TDB models of SIG2SL3X (1): PHASE and CONSTITUENT statements as written

AlNb-23Fio.tdb: SIG2SL3X, type code %, sha256 f8fec1a8af356181…

78: PHASE SIG2SL3X % 1 1 !
79: CONST SIG2SL3X : AL NB : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2022.102522 J.M. Fiorani, M. Badran, J.M. Joubert, J.C. Crivello, A.A.A.P. da Silva, G.C. Coelho et al., New approach to the compound energy formalism (NACEF) Part II. Thermodynamic modelling of the Al–Nb system supported by first-principles calculations, Calphad 80, 102522 (2023).
assessment that models this phase

SIG2SL5 (Al–Nb)

Id: phase:al-nb:sig2sl5; status needs_review
No structure assigned. Why: name_has_descriptive_tokens:SIG2SL5; no_structure_token
Candidate (dft_mp): P4_2/mnm (136) — on-hull MP Nb2Al at x(NB)=0.6667
Candidate (dft_oqmd): P42/mnm (136) — on-hull OQMD Al1 Nb2 at x(NB)=0.6667
Stability: stable in 1 of 1 calculated diagram(s): 300.39–2205.36 K, x(Nb) 0.55259–0.69154
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:al-nb:sig2sl5
tdb: tdb:AlNb-23Fio.tdb:SIG2SL5

TDB models of SIG2SL5 (1): PHASE and CONSTITUENT statements as written

AlNb-23Fio.tdb: SIG2SL5, type code %U, sha256 f8fec1a8af356181…

93: PHASE SIG2SL5 %U 5 2 4 8 8 8 !
94: CONST SIG2SL5 : AL NB : AL NB : AL NB : AL NB : AL NB : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2022.102522 J.M. Fiorani, M. Badran, J.M. Joubert, J.C. Crivello, A.A.A.P. da Silva, G.C. Coelho et al., New approach to the compound energy formalism (NACEF) Part II. Thermodynamic modelling of the Al–Nb system supported by first-principles calculations, Calphad 80, 102522 (2023).
assessment that models this phase

SIG2SL5X (Al–Nb)

Id: phase:al-nb:sig2sl5x; status unresolved_no_candidates
No structure assigned. Why: name_has_descriptive_tokens:SIG2SL5X; no_structure_token
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:al-nb:sig2sl5x
tdb: tdb:AlNb-23Fio.tdb:SIG2SL5X

TDB models of SIG2SL5X (1): PHASE and CONSTITUENT statements as written

AlNb-23Fio.tdb: SIG2SL5X, type code %, sha256 f8fec1a8af356181…

88: PHASE SIG2SL5X % 1 1 !
89: CONST SIG2SL5X : AL NB : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2022.102522 J.M. Fiorani, M. Badran, J.M. Joubert, J.C. Crivello, A.A.A.P. da Silva, G.C. Coelho et al., New approach to the compound energy formalism (NACEF) Part II. Thermodynamic modelling of the Al–Nb system supported by first-principles calculations, Calphad 80, 102522 (2023).
assessment that models 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). doi: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). doi: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.

@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}
}