B–Nd phases

10 phases (tier A 6, tier C 1, liquid 1, needs_review 2); 8 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 · B–Nd system page · Markdown · field reference

Phases of the B–Nd system (10)
Phase	Structure	Basis	Stability (calculated)	Literature values	TDB models
BETA_RHOMBO_B phase:b-nd:b-beta-rhombo		needs_review	stable in 4 of 4 calculated diagram(s): 300–2349 K, x(B) 1–1	0	4
BCC_A2 phase:b-nd:bcc-a2	W · A2 · cI2 · Im-3m (229)	tier A: standard phase name	stable in 4 of 4 calculated diagram(s): 1127.59–3999.83 K, x(B) 0–0.00049	0	4
DHCP phase:b-nd:dhcp-a3	alpha-La · A3' · hP4 · P6_3/mmc (194)	tier A: standard phase name	stable in 4 of 4 calculated diagram(s): 300–1283 K, x(B) 0–0	0	4
FCC_A1 phase:b-nd:fcc-a1	Cu · A1 · cF4 · Fm-3m (225)	tier A: standard phase name	not stable in 4 calculated diagram(s)	0	4
HCP_A3 phase:b-nd:hcp-a3	Mg · A3 · hP2 · P6_3/mmc (194)	tier A: standard phase name	not stable in 4 calculated diagram(s)	0	4
LIQUID phase:b-nd:liquid	liquid	liquid	stable in 4 of 4 calculated diagram(s): 1250.83–4000 K, x(B) 0–1	2	4
ND2B5 phase:b-nd:nd2b5	Pr2B5 · mC56 · C2/c (15)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 4 of 4 calculated diagram(s): 300–2382.42 K, x(B) 0.71429–0.71429	0	4
NDB4_D1E phase:b-nd:ndb4-d1e	UB4 · D1_e · tP20 · P4/mbm (127)	tier A: standard phase name	stable in 4 of 4 calculated diagram(s): 300–2630.77 K, x(B) 0.8–0.8	0	4
NDB6_D21 phase:b-nd:ndb6-d21	CaB6 · D2_1 · cP7 · Pm-3m (221)	tier A: standard phase name	stable in 4 of 4 calculated diagram(s): 300–2899.14 K, x(B) 0.85714–0.91413	2	4
NDB66 phase:b-nd:ndb66		needs_review	stable in 4 of 4 calculated diagram(s): 300–2422.97 K, x(B) 0.98–0.98507	10	4

BETA_RHOMBO_B (B–Nd)

Id: phase:b-nd:b-beta-rhombo; status needs_review
No structure assigned. Why: name_has_descriptive_tokens:RHOMBO; no_structure_token
Candidate (sgte_mmc2): beta-B · hR105 · R-3m (166) — Hallstedt 2025 mmc2 row for BETA_RHOMBO_B: beta-B
Candidate (tdb_comment): beta-B · hR105 · R-3m — NdB-16Zho-corrected.tdb: 'Prototype beta-B (hR105, R-3m)'
Candidate (tdb_comment): beta-B · hR105 · R-3m — NdB-19Che.tdb: 'Prototype beta-B (hR105, R-3m)'
Candidate (tdb_comment): beta-B · hR105 · R-3m — NdB-95Hal-LB.tdb: 'Prototype beta-B (hR105, R-3m)'
Candidate (tdb_comment): beta-B · hR105 · R-3m — NdB-98Che.tdb: 'Prototype beta-B (hR105, R-3m)'
Stoichiometry: B 1.0000
Stability: stable in 4 of 4 calculated diagram(s): 300–2349 K, x(B) 1–1
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:b-nd:b-beta-rhombo
tdb: tdb:NdB-16Zho-corrected.tdb:BETA_RHOMBO_B, tdb:NdB-19Che.tdb:BETA_RHOMBO_B, tdb:NdB-95Hal-LB.tdb:BETA_RHOMBO_B, tdb:NdB-98Che.tdb:BETA_RHOMBO_B

TDB models of BETA_RHOMBO_B (4): PHASE and CONSTITUENT statements as written

NdB-16Zho-corrected.tdb: BETA_RHOMBO_B, type code %, sha256 cae81a496f38b11b…

51: PHASE BETA_RHOMBO_B % 1 1 !
52: CONST BETA_RHOMBO_B : B : !

NdB-19Che.tdb: BETA_RHOMBO_B, type code %, sha256 dff8ac7c4ad64e6c…

48: PHASE BETA_RHOMBO_B % 1 1 !
49: CONST BETA_RHOMBO_B : B : !

NdB-95Hal-LB.tdb: BETA_RHOMBO_B, type code %, sha256 a14f51e14303dba1…

51: PHASE BETA_RHOMBO_B % 1 1 !
52: CONST BETA_RHOMBO_B : B : !

NdB-98Che.tdb: BETA_RHOMBO_B, type code %, sha256 502e0edcb7d117b4…

49: PHASE BETA_RHOMBO_B % 1 1 !
50: CONST BETA_RHOMBO_B : B : !

Example references (3 of 3; assessments first):

doi:10.1007/BF02664851 B. Hallemans, P. Wollants, J.R. Roos, J. Phase Equilib., 16, 137-49(1995).
assessment that models this phase
doi:10.1007/s11664-015-4112-y G. J. Zhou, Y. Luo, Y. Zhou, Thermodynamic Reassessment of the Nd-Fe-B Ternary System, Journal of Elec Materi 45, 418-425 (2016).
assessment that models this phase
doi:10.1016/j.calphad.2019.101627 T.L. Chen, J. Wang, C.P. Guo, C.R. Li, Z.M. Du, G.H. Rao, H.Y. Zhou, Calphad, 66, 101627(2019).
assessment that models this phase

BCC_A2 (B–Nd)

Id: phase:b-nd: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 4 of 4 calculated diagram(s): 1127.59–3999.83 K, x(B) 0–0.00049
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:b-nd:bcc-a2
tdb: tdb:NdB-16Zho-corrected.tdb:BCC_A2, tdb:NdB-19Che.tdb:BCC_A2, tdb:NdB-95Hal-LB.tdb:BCC_A2, tdb:NdB-98Che.tdb:BCC_A2

TDB models of BCC_A2 (4): PHASE and CONSTITUENT statements as written

NdB-16Zho-corrected.tdb: BCC_A2, type code %B, sha256 cae81a496f38b11b…

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

NdB-19Che.tdb: BCC_A2, type code %B, sha256 dff8ac7c4ad64e6c…

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

NdB-95Hal-LB.tdb: BCC_A2, type code %B, sha256 a14f51e14303dba1…

36: PHASE BCC_A2 %B 2 1 3 !
37: CONST BCC_A2 : ND : B, VA : !

NdB-98Che.tdb: BCC_A2, type code %B, sha256 502e0edcb7d117b4…

34: PHASE BCC_A2 %B 2 1 3 !
35: CONST BCC_A2 : ND : B, VA : !

Example references (3 of 3; assessments first):

doi:10.1007/BF02664851 B. Hallemans, P. Wollants, J.R. Roos, J. Phase Equilib., 16, 137-49(1995).
assessment that models this phase
doi:10.1007/s11664-015-4112-y G. J. Zhou, Y. Luo, Y. Zhou, Thermodynamic Reassessment of the Nd-Fe-B Ternary System, Journal of Elec Materi 45, 418-425 (2016).
assessment that models this phase
doi:10.1016/j.calphad.2019.101627 T.L. Chen, J. Wang, C.P. Guo, C.R. Li, Z.M. Du, G.H. Rao, H.Y. Zhou, Calphad, 66, 101627(2019).
assessment that models this phase

DHCP (B–Nd)

Id: phase:b-nd:dhcp-a3; status assigned
Structure: alpha-La · A3' · hP4 · P6_3/mmc (194); type st:a3-alpha-la-hp4; tier A: standard phase name; confidence high
Stoichiometry: Nd 1.0000
Stability: stable in 4 of 4 calculated diagram(s): 300–1283 K, x(B) 0–0
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:b-nd:dhcp-a3
tdb: tdb:NdB-16Zho-corrected.tdb:DHCP, tdb:NdB-19Che.tdb:DHCP, tdb:NdB-95Hal-LB.tdb:DHCP, tdb:NdB-98Che.tdb:DHCP

TDB models of DHCP (4): PHASE and CONSTITUENT statements as written

NdB-16Zho-corrected.tdb: DHCP, type code %, sha256 cae81a496f38b11b…

46: PHASE DHCP % 1 1 !
47: CONST DHCP : ND : !

NdB-19Che.tdb: DHCP, type code %, sha256 dff8ac7c4ad64e6c…

43: PHASE DHCP % 1 1 !
44: CONST DHCP : ND : !

NdB-95Hal-LB.tdb: DHCP, type code %, sha256 a14f51e14303dba1…

46: PHASE DHCP % 1 1 !
47: CONST DHCP : ND : !

NdB-98Che.tdb: DHCP, type code %, sha256 502e0edcb7d117b4…

44: PHASE DHCP % 1 1 !
45: CONST DHCP : ND : !

Example references (3 of 3; assessments first):

doi:10.1007/BF02664851 B. Hallemans, P. Wollants, J.R. Roos, J. Phase Equilib., 16, 137-49(1995).
assessment that models this phase
doi:10.1007/s11664-015-4112-y G. J. Zhou, Y. Luo, Y. Zhou, Thermodynamic Reassessment of the Nd-Fe-B Ternary System, Journal of Elec Materi 45, 418-425 (2016).
assessment that models this phase
doi:10.1016/j.calphad.2019.101627 T.L. Chen, J. Wang, C.P. Guo, C.R. Li, Z.M. Du, G.H. Rao, H.Y. Zhou, Calphad, 66, 101627(2019).
assessment that models this phase

FCC_A1 (B–Nd)

Id: phase:b-nd:fcc-a1; status assigned
Structure: Cu · A1 · cF4 · Fm-3m (225); type st:a1-cu-cf4; tier A: standard phase name; confidence high
Stability: not stable in 4 calculated diagram(s)
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:b-nd:fcc-a1
tdb: tdb:NdB-16Zho-corrected.tdb:FCC_A1, tdb:NdB-19Che.tdb:FCC_A1, tdb:NdB-95Hal-LB.tdb:FCC_A1, tdb:NdB-98Che.tdb:FCC_A1

TDB models of FCC_A1 (4): PHASE and CONSTITUENT statements as written

NdB-16Zho-corrected.tdb: FCC_A1, type code %A, sha256 cae81a496f38b11b…

31: PHASE FCC_A1 %A 2 1 1 !
32: CONST FCC_A1 : B ND : VA : !

NdB-19Che.tdb: FCC_A1, type code %A, sha256 dff8ac7c4ad64e6c…

28: PHASE FCC_A1 %A 2 1 1 !
29: CONST FCC_A1 : B ND : VA : !

NdB-95Hal-LB.tdb: FCC_A1, type code %A, sha256 a14f51e14303dba1…

31: PHASE FCC_A1 %A 2 1 1 !
32: CONST FCC_A1 : ND : B, VA : !

NdB-98Che.tdb: FCC_A1, type code %A, sha256 502e0edcb7d117b4…

29: PHASE FCC_A1 %A 2 1 1 !
30: CONST FCC_A1 : ND : B, VA : !

Example references (3 of 3; assessments first):

doi:10.1007/BF02664851 B. Hallemans, P. Wollants, J.R. Roos, J. Phase Equilib., 16, 137-49(1995).
assessment that models this phase
doi:10.1007/s11664-015-4112-y G. J. Zhou, Y. Luo, Y. Zhou, Thermodynamic Reassessment of the Nd-Fe-B Ternary System, Journal of Elec Materi 45, 418-425 (2016).
assessment that models this phase
doi:10.1016/j.calphad.2019.101627 T.L. Chen, J. Wang, C.P. Guo, C.R. Li, Z.M. Du, G.H. Rao, H.Y. Zhou, Calphad, 66, 101627(2019).
assessment that models this phase

HCP_A3 (B–Nd)

Id: phase:b-nd: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 4 calculated diagram(s)
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:b-nd:hcp-a3
tdb: tdb:NdB-16Zho-corrected.tdb:HCP_A3, tdb:NdB-19Che.tdb:HCP_A3, tdb:NdB-95Hal-LB.tdb:HCP_A3, tdb:NdB-98Che.tdb:HCP_A3

TDB models of HCP_A3 (4): PHASE and CONSTITUENT statements as written

NdB-16Zho-corrected.tdb: HCP_A3, type code %A, sha256 cae81a496f38b11b…

41: PHASE HCP_A3 %A 2 1 0.5 !
42: CONST HCP_A3 : B ND : VA : !

NdB-19Che.tdb: HCP_A3, type code %A, sha256 dff8ac7c4ad64e6c…

38: PHASE HCP_A3 %A 2 1 0.5 !
39: CONST HCP_A3 : B ND : VA : !

NdB-95Hal-LB.tdb: HCP_A3, type code %A, sha256 a14f51e14303dba1…

41: PHASE HCP_A3 %A 2 1 0.5 !
42: CONST HCP_A3 : ND : B, VA : !

NdB-98Che.tdb: HCP_A3, type code %A, sha256 502e0edcb7d117b4…

39: PHASE HCP_A3 %A 2 1 0.5 !
40: CONST HCP_A3 : ND : B, VA : !

Example references (3 of 3; assessments first):

doi:10.1007/BF02664851 B. Hallemans, P. Wollants, J.R. Roos, J. Phase Equilib., 16, 137-49(1995).
assessment that models this phase
doi:10.1007/s11664-015-4112-y G. J. Zhou, Y. Luo, Y. Zhou, Thermodynamic Reassessment of the Nd-Fe-B Ternary System, Journal of Elec Materi 45, 418-425 (2016).
assessment that models this phase
doi:10.1016/j.calphad.2019.101627 T.L. Chen, J. Wang, C.P. Guo, C.R. Li, Z.M. Du, G.H. Rao, H.Y. Zhou, Calphad, 66, 101627(2019).
assessment that models this phase

LIQUID (B–Nd)

Id: phase:b-nd:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 4 of 4 calculated diagram(s): 1250.83–4000 K, x(B) 0–1
Literature: 2 values (2 accepted) from 1 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:b-nd:liquid
paper: paper:10.1007/bf02664851:L
tdb: tdb:NdB-16Zho-corrected.tdb:LIQUID, tdb:NdB-19Che.tdb:LIQUID, tdb:NdB-95Hal-LB.tdb:LIQUID, tdb:NdB-98Che.tdb:LIQUID

TDB models of LIQUID (4): PHASE and CONSTITUENT statements as written

NdB-16Zho-corrected.tdb: LIQUID, type code %, sha256 cae81a496f38b11b…

26: PHASE LIQUID:L % 1 1 !
27: CONST LIQUID:L : B ND : !

NdB-19Che.tdb: LIQUID, type code %, sha256 dff8ac7c4ad64e6c…

23: PHASE LIQUID:L % 1 1 !
24: CONST LIQUID:L : B ND : !

NdB-95Hal-LB.tdb: LIQUID, type code %, sha256 a14f51e14303dba1…

26: PHASE LIQUID:L % 1 1 !
27: CONST LIQUID:L : B ND : !

NdB-98Che.tdb: LIQUID, type code %, sha256 502e0edcb7d117b4…

24: PHASE LIQUID:L % 1 1 !
25: CONST LIQUID:L : B ND : !

Example references (3 of 3; assessments first):

doi:10.1007/BF02664851 B. Hallemans, P. Wollants, J.R. Roos, J. Phase Equilib., 16, 137-49(1995).
assessment that models this phase; reports values for this phase
doi:10.1007/s11664-015-4112-y G. J. Zhou, Y. Luo, Y. Zhou, Thermodynamic Reassessment of the Nd-Fe-B Ternary System, Journal of Elec Materi 45, 418-425 (2016).
assessment that models this phase
doi:10.1016/j.calphad.2019.101627 T.L. Chen, J. Wang, C.P. Guo, C.R. Li, Z.M. Du, G.H. Rao, H.Y. Zhou, Calphad, 66, 101627(2019).
assessment that models this phase

ND2B5 (B–Nd)

Id: phase:b-nd:nd2b5; status assigned
Structure: Pr2B5 · mC56 · C2/c (15); type st:pr2b5-mc56; 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 (dft_space_group_15_matches_3_structure_types, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: B 0.7143, Nd 0.2857
Stability: stable in 4 of 4 calculated diagram(s): 300–2382.42 K, x(B) 0.71429–0.71429
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:b-nd:nd2b5
tdb: tdb:NdB-16Zho-corrected.tdb:ND2B5, tdb:NdB-19Che.tdb:ND2B5, tdb:NdB-95Hal-LB.tdb:ND2B5, tdb:NdB-98Che.tdb:ND2B5

TDB models of ND2B5 (4): PHASE and CONSTITUENT statements as written

NdB-16Zho-corrected.tdb: ND2B5, type code %, sha256 cae81a496f38b11b…

56: PHASE ND2B5 % 2 2 5 !
57: CONST ND2B5 : ND : B : !

NdB-19Che.tdb: ND2B5, type code %, sha256 dff8ac7c4ad64e6c…

53: PHASE ND2B5 % 2 2 5 !
54: CONST ND2B5 : ND : B : !

NdB-95Hal-LB.tdb: ND2B5, type code %, sha256 a14f51e14303dba1…

56: PHASE ND2B5 % 2 2 5 !
57: CONST ND2B5 : ND : B : !

NdB-98Che.tdb: ND2B5, type code %, sha256 502e0edcb7d117b4…

54: PHASE ND2B5 % 2 2 5 !
55: CONST ND2B5 : ND : B : !

Example references (3 of 3; assessments first):

doi:10.1007/BF02664851 B. Hallemans, P. Wollants, J.R. Roos, J. Phase Equilib., 16, 137-49(1995).
assessment that models this phase
doi:10.1007/s11664-015-4112-y G. J. Zhou, Y. Luo, Y. Zhou, Thermodynamic Reassessment of the Nd-Fe-B Ternary System, Journal of Elec Materi 45, 418-425 (2016).
assessment that models this phase
doi:10.1016/j.calphad.2019.101627 T.L. Chen, J. Wang, C.P. Guo, C.R. Li, Z.M. Du, G.H. Rao, H.Y. Zhou, Calphad, 66, 101627(2019).
assessment that models this phase

NDB4_D1E (B–Nd)

Id: phase:b-nd:ndb4-d1e; status assigned
Structure: UB4 · D1_e · tP20 · P4/mbm (127); type st:d1-e-ub4-tp20; tier A: standard phase name; confidence high
Caveat: DFT agrees: on-hull mp-aaaaacku and oqmd-19849, space group 127
Stoichiometry: B 0.8000, Nd 0.2000
Stability: stable in 4 of 4 calculated diagram(s): 300–2630.77 K, x(B) 0.8–0.8
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:b-nd:ndb4-d1e
mp: mp:mp-aaaaacku
oqmd: oqmd:oqmd-19849
tdb: tdb:NdB-16Zho-corrected.tdb:NDB4_D1E, tdb:NdB-19Che.tdb:NDB4_D1E, tdb:NdB-95Hal-LB.tdb:NDB4_D1E, tdb:NdB-98Che.tdb:NDB4_D1E

TDB models of NDB4_D1E (4): PHASE and CONSTITUENT statements as written

NdB-16Zho-corrected.tdb: NDB4_D1E, type code %, sha256 cae81a496f38b11b…

61: PHASE NDB4_D1E % 2 1 4 !
62: CONST NDB4_D1E : ND : B : !

NdB-19Che.tdb: NDB4_D1E, type code %, sha256 dff8ac7c4ad64e6c…

58: PHASE NDB4_D1E % 2 1 4 !
59: CONST NDB4_D1E : ND : B : !

NdB-95Hal-LB.tdb: NDB4_D1E, type code %, sha256 a14f51e14303dba1…

61: PHASE NDB4_D1E % 2 1 4 !
62: CONST NDB4_D1E : ND : B : !

NdB-98Che.tdb: NDB4_D1E, type code %, sha256 502e0edcb7d117b4…

59: PHASE NDB4_D1E % 2 1 4 !
60: CONST NDB4_D1E : ND : B : !

Example references (3 of 3; assessments first):

doi:10.1007/BF02664851 B. Hallemans, P. Wollants, J.R. Roos, J. Phase Equilib., 16, 137-49(1995).
assessment that models this phase
doi:10.1007/s11664-015-4112-y G. J. Zhou, Y. Luo, Y. Zhou, Thermodynamic Reassessment of the Nd-Fe-B Ternary System, Journal of Elec Materi 45, 418-425 (2016).
assessment that models this phase
doi:10.1016/j.calphad.2019.101627 T.L. Chen, J. Wang, C.P. Guo, C.R. Li, Z.M. Du, G.H. Rao, H.Y. Zhou, Calphad, 66, 101627(2019).
assessment that models this phase

NDB6_D21 (B–Nd)

Id: phase:b-nd:ndb6-d21; status assigned
Structure: CaB6 · D2_1 · cP7 · Pm-3m (221); type st:d2-1-cab6-cp7; tier A: standard phase name; confidence high
Stability: stable in 4 of 4 calculated diagram(s): 300–2899.14 K, x(B) 0.85714–0.91413
Literature: 2 values (2 accepted) from 1 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:b-nd:ndb6-d21
paper: paper:10.1007/bf02664851:NdB6
tdb: tdb:NdB-16Zho-corrected.tdb:NDB6_D21, tdb:NdB-19Che.tdb:NDB6_D21, tdb:NdB-95Hal-LB.tdb:NDB6_D21, tdb:NdB-98Che.tdb:NDB6_D21

TDB models of NDB6_D21 (4): PHASE and CONSTITUENT statements as written

NdB-16Zho-corrected.tdb: NDB6_D21, type code %, sha256 cae81a496f38b11b…

66: PHASE NDB6_D21 % 2 1 6 !
67: CONST NDB6_D21 : ND : B : !

NdB-19Che.tdb: NDB6_D21, type code %, sha256 dff8ac7c4ad64e6c…

63: PHASE NDB6_D21 % 2 1 6 !
64: CONST NDB6_D21 : B ND% : B : !

NdB-95Hal-LB.tdb: NDB6_D21, type code %, sha256 a14f51e14303dba1…

66: PHASE NDB6_D21 % 2 1 6 !
67: CONST NDB6_D21 : ND : B : !

NdB-98Che.tdb: NDB6_D21, type code %, sha256 502e0edcb7d117b4…

64: PHASE NDB6_D21 % 2 1 6 !
65: CONST NDB6_D21 : ND : B : !

Example references (3 of 3; assessments first):

doi:10.1007/BF02664851 B. Hallemans, P. Wollants, J.R. Roos, J. Phase Equilib., 16, 137-49(1995).
assessment that models this phase; reports values for this phase
doi:10.1007/s11664-015-4112-y G. J. Zhou, Y. Luo, Y. Zhou, Thermodynamic Reassessment of the Nd-Fe-B Ternary System, Journal of Elec Materi 45, 418-425 (2016).
assessment that models this phase
doi:10.1016/j.calphad.2019.101627 T.L. Chen, J. Wang, C.P. Guo, C.R. Li, Z.M. Du, G.H. Rao, H.Y. Zhou, Calphad, 66, 101627(2019).
assessment that models this phase

NDB66 (B–Nd)

Id: phase:b-nd:ndb66; status needs_review
No structure assigned. Why: assessment_declared_blocked_by:models_disagree_on_composition; models_disagree_on_composition; no_structure_token
Candidate (sgte_mmc2): YB66 · cF1936 · Fm-3c (226) — Hallstedt 2025 mmc2 row for NDB66: NdB66
Candidate (tdb_comment): YB66 · cF1936 · Fm-3c — NdB-16Zho-corrected.tdb: 'Prototype YB66 (cF1936, Fm-3c)'
Candidate (tdb_comment): YB66 · cF1936 · Fm-3c — NdB-19Che.tdb: 'Prototype YB66 (cF1936, Fm-3c)'
Candidate (tdb_comment): YB66 · cF1936 · Fm-3c — NdB-95Hal-LB.tdb: 'Prototype YB66 (cF1936, Fm-3c)'
Candidate (tdb_comment): YB66 · cF1936 · Fm-3c — NdB-98Che.tdb: 'Prototype YB66 (cF1936, Fm-3c)'
Stability: stable in 4 of 4 calculated diagram(s): 300–2422.97 K, x(B) 0.98–0.98507
Literature: 10 values (10 accepted) from 1 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:b-nd:ndb66
paper: paper:10.1007/bf02664851:NdB66
tdb: tdb:NdB-16Zho-corrected.tdb:NDB66, tdb:NdB-19Che.tdb:NDB66, tdb:NdB-95Hal-LB.tdb:NDB66, tdb:NdB-98Che.tdb:NDB66

TDB models of NDB66 (4): PHASE and CONSTITUENT statements as written

NdB-16Zho-corrected.tdb: NDB66, type code %, sha256 cae81a496f38b11b…

71: PHASE NDB66 % 2 0.02 0.98 !
72: CONST NDB66 : ND : B : !

NdB-19Che.tdb: NDB66, type code %, sha256 dff8ac7c4ad64e6c…

68: PHASE NDB66 % 2 1 66 !
69: CONST NDB66 : ND : B : !

NdB-95Hal-LB.tdb: NDB66, type code %, sha256 a14f51e14303dba1…

71: PHASE NDB66 % 2 1 66 !
72: CONST NDB66 : ND : B : !

NdB-98Che.tdb: NDB66, type code %, sha256 502e0edcb7d117b4…

69: PHASE NDB66 % 2 1 66 !
70: CONST NDB66 : ND : B : !

Example references (4 of 4; assessments first):

doi:10.1007/BF02664851 B. Hallemans, P. Wollants, J.R. Roos, J. Phase Equilib., 16, 137-49(1995).
assessment that models this phase; reports values for this phase
doi:10.1007/s11664-015-4112-y G. J. Zhou, Y. Luo, Y. Zhou, Thermodynamic Reassessment of the Nd-Fe-B Ternary System, Journal of Elec Materi 45, 418-425 (2016).
assessment that models this phase
doi:10.1016/j.calphad.2019.101627 T.L. Chen, J. Wang, C.P. Guo, C.R. Li, Z.M. Du, G.H. Rao, H.Y. Zhou, Calphad, 66, 101627(2019).
assessment that models this phase
doi:10.1021/j150611a015 E. K. Storms, Phase relationship, vaporization, and thermodynamic properties of neodymium hexaboride, J. Phys. Chem. 85, 1536-1540 (1981).
cited as the source of values for 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}
}