Fe–Sn phases

10 phases (tier A 7, tier C 1, liquid 1, needs_review 1); 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 · Fe–Sn system page · Markdown · field reference

Phases of the Fe–Sn system (10)
Phase	Structure	Basis	Stability (calculated)	Literature values	TDB models
DIAMOND_A4 phase:fe-sn:a4-diamond	C (diamond) · A4 · cF8 · Fd-3m (227)	tier A: standard phase name	not stable in 3 calculated diagram(s)	0	3
BCT_A5 phase:fe-sn:a5-bct	beta-Sn · A5 · tI4 · I4_1/amd (141)	tier A: standard phase name	stable in 3 of 3 calculated diagram(s): 300–505.08 K, x(Sn) 1–1	6	3
BCC_A2 phase:fe-sn:bcc-a2	W · A2 · cI2 · Im-3m (229)	tier A: standard phase name	stable in 3 of 3 calculated diagram(s): 300–1829.2 K, x(Sn) 0–0.08794	22	3
FCC_A1 phase:fe-sn:fcc-a1	Cu · A1 · cF4 · Fm-3m (225)	tier A: standard phase name	stable in 3 of 3 calculated diagram(s): 1124.83–1689.83 K, x(Sn) 0–0.00852	0	3
FE3SN2 phase:fe-sn:fe3sn2	Fe3Sn2 · hR10 · R-3m (166)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 3 of 3 calculated diagram(s): 875.05–1080.32 K, x(Sn) 0.4–0.4	20	3
FE5SN3_B82 phase:fe-sn:fe5sn3-b82		needs_review	stable in 3 of 3 calculated diagram(s): 1040.58–1181.15 K, x(Sn) 0.375–0.375	14	3
FESN_B35 phase:fe-sn:fesn-b35	CoSn · B35 · hP6 · P6/mmm (191)	tier A: standard phase name	stable in 3 of 3 calculated diagram(s): 300–1042.51 K, x(Sn) 0.5–0.5	28	3
FESN2_C16 phase:fe-sn:fesn2-c16	Al2Cu · C16 · tI12 · I4/mcm (140)	tier A: standard phase name	stable in 3 of 3 calculated diagram(s): 300–786.12 K, x(Sn) 0.66667–0.66667	23	3
HCP_A3 phase:fe-sn:hcp-a3	Mg · A3 · hP2 · P6_3/mmc (194)	tier A: standard phase name	not stable in 3 calculated diagram(s)	0	3
LIQUID phase:fe-sn:liquid	liquid	liquid	stable in 3 of 3 calculated diagram(s): 505.08–2500 K, x(Sn) 0–1	28	3

DIAMOND_A4 (Fe–Sn)

Id: phase:fe-sn:a4-diamond; status assigned
Structure: C (diamond) · A4 · cF8 · Fd-3m (227); type st:a4-c-diamond-cf8; tier A: standard phase name; confidence high
Stoichiometry: Sn 1.0000
Stability: not stable in 3 calculated diagram(s)
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:fe-sn:a4-diamond
tdb: tdb:FeSn-10Hua.tdb:DIAMOND_A4, tdb:FeSn-20Laf.tdb:DIAMOND_A4, tdb:FeSn-96Har-LB.tdb:DIAMOND_A4

TDB models of DIAMOND_A4 (3): PHASE and CONSTITUENT statements as written

FeSn-10Hua.tdb: DIAMOND_A4, type code %, sha256 a4b20e684dcb573a…

45: PHASE DIAMOND_A4 % 1 1 !
46: CONST DIAMOND_A4 : SN : !

FeSn-20Laf.tdb: DIAMOND_A4, type code %, sha256 9fdbfba0e895036a…

42: PHASE DIAMOND_A4 % 1 1 !
43: CONST DIAMOND_A4 : SN : !

FeSn-96Har-LB.tdb: DIAMOND_A4, type code %, sha256 ad3eeabb86656e73…

40: PHASE DIAMOND_A4 % 1 1 !
41: CONST DIAMOND_A4 : SN : !

Example references (3 of 3; assessments first):

doi:10.1016/j.intermet.2010.01.026 Yu-Chih Huang, Wojciech Gierlotka, Sinn-Wen Chen, Sn–Bi–Fe thermodynamic modeling and Sn–Bi/Fe interfacial reactions, Intermetallics 18, 984-991 (2010).
assessment that models this phase
doi:10.1016/j.jallcom.2019.153200 Paul Lafaye, Caroline Toffolon-Masclet, Jean-Claude Crivello, Jean-Marc Joubert, Thermodynamic modelling of the Fe–Sn–Zr system based on new experiments and first-principles calculations, Journal of Alloys and Compounds 821, 153200 (2020).
assessment that models this phase
doi:10.1016/S0364-5916(96)00021-1 K.C. Hari Kumar, P. Wollants, L. Delaey, Calphad, 20, 139-49(1996).
assessment that models this phase

BCT_A5 (Fe–Sn)

Id: phase:fe-sn:a5-bct; status assigned
Structure: beta-Sn · A5 · tI4 · I4_1/amd (141); type st:a5-beta-sn-ti4; tier A: standard phase name; confidence high
Stoichiometry: Sn 1.0000
Stability: stable in 3 of 3 calculated diagram(s): 300–505.08 K, x(Sn) 1–1
Literature: 6 values (6 accepted) from 1 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:fe-sn:a5-bct, corpus:phase:fe-sn:bct-a5
paper: paper:10.1016/j.intermet.2010.01.026:BCT_A5
tdb: tdb:FeSn-10Hua.tdb:BCT_A5, tdb:FeSn-20Laf.tdb:BCT_A5, tdb:FeSn-96Har-LB.tdb:BCT_A5

TDB models of BCT_A5 (3): PHASE and CONSTITUENT statements as written

FeSn-10Hua.tdb: BCT_A5, type code %, sha256 a4b20e684dcb573a…

50: PHASE BCT_A5 % 1 1 !
51: CONST BCT_A5 : SN : !

FeSn-20Laf.tdb: BCT_A5, type code %, sha256 9fdbfba0e895036a…

47: PHASE BCT_A5 % 1 1 !
48: CONST BCT_A5 : SN : !

FeSn-96Har-LB.tdb: BCT_A5, type code %, sha256 ad3eeabb86656e73…

45: PHASE BCT_A5 % 1 1 !
46: CONST BCT_A5 : SN : !

Example references (4 of 4; assessments first):

doi:10.1016/j.intermet.2010.01.026 Yu-Chih Huang, Wojciech Gierlotka, Sinn-Wen Chen, Sn–Bi–Fe thermodynamic modeling and Sn–Bi/Fe interfacial reactions, Intermetallics 18, 984-991 (2010).
assessment that models this phase; reports values for this phase
doi:10.1016/S0364-5916(96)00021-1 K.C. Hari Kumar, P. Wollants, L. Delaey, Calphad, 20, 139-49(1996).
assessment that models this phase; cited as the source of values for this phase
doi:10.1016/j.jallcom.2019.153200 Paul Lafaye, Caroline Toffolon-Masclet, Jean-Claude Crivello, Jean-Marc Joubert, Thermodynamic modelling of the Fe–Sn–Zr system based on new experiments and first-principles calculations, Journal of Alloys and Compounds 821, 153200 (2020).
assessment that models this phase
doi:10.1016/0001-6160(75)90039-5 J.J Connolly, J.V McAllan, The tin-iron eutectic, Acta Metallurgica 23, 1209-1214 (1975).
cited as the source of values for this phase

BCC_A2 (Fe–Sn)

Id: phase:fe-sn: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 3 of 3 calculated diagram(s): 300–1829.2 K, x(Sn) 0–0.08794
Literature: 22 values (22 accepted) from 1 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:fe-sn:bcc-a2
paper: paper:10.1016/j.intermet.2010.01.026:BCC_A2
tdb: tdb:FeSn-10Hua.tdb:BCC_A2, tdb:FeSn-20Laf.tdb:BCC_A2, tdb:FeSn-96Har-LB.tdb:BCC_A2

TDB models of BCC_A2 (3): PHASE and CONSTITUENT statements as written

FeSn-10Hua.tdb: BCC_A2, type code %B, sha256 a4b20e684dcb573a…

35: PHASE BCC_A2 %B 2 1 3 !
36: CONST BCC_A2 : FE% SN : VA : !

FeSn-20Laf.tdb: BCC_A2, type code %B, sha256 9fdbfba0e895036a…

32: PHASE BCC_A2 %B 2 1 3 !
33: CONST BCC_A2 : FE% SN : VA : !

FeSn-96Har-LB.tdb: BCC_A2, type code %B, sha256 ad3eeabb86656e73…

30: PHASE BCC_A2 %B 2 1 3 !
31: CONST BCC_A2 : FE% SN : VA : !

Example references (4 of 4; assessments first):

doi:10.1016/j.intermet.2010.01.026 Yu-Chih Huang, Wojciech Gierlotka, Sinn-Wen Chen, Sn–Bi–Fe thermodynamic modeling and Sn–Bi/Fe interfacial reactions, Intermetallics 18, 984-991 (2010).
assessment that models this phase; reports values for this phase
doi:10.1016/S0364-5916(96)00021-1 K.C. Hari Kumar, P. Wollants, L. Delaey, Calphad, 20, 139-49(1996).
assessment that models this phase; cited as the source of values for this phase
doi:10.1016/j.jallcom.2019.153200 Paul Lafaye, Caroline Toffolon-Masclet, Jean-Claude Crivello, Jean-Marc Joubert, Thermodynamic modelling of the Fe–Sn–Zr system based on new experiments and first-principles calculations, Journal of Alloys and Compounds 821, 153200 (2020).
assessment that models this phase
doi:10.1007/bf01730231 M. Singh, S. Bhan, Contribution to the Fe—Sn system, J Mater Sci Lett 5, 733-735 (1986).
cited as the source of values for this phase

FCC_A1 (Fe–Sn)

Id: phase:fe-sn: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 3 of 3 calculated diagram(s): 1124.83–1689.83 K, x(Sn) 0–0.00852
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:fe-sn:fcc-a1
tdb: tdb:FeSn-10Hua.tdb:FCC_A1, tdb:FeSn-20Laf.tdb:FCC_A1, tdb:FeSn-96Har-LB.tdb:FCC_A1

TDB models of FCC_A1 (3): PHASE and CONSTITUENT statements as written

FeSn-10Hua.tdb: FCC_A1, type code %A, sha256 a4b20e684dcb573a…

30: PHASE FCC_A1 %A 2 1 1 !
31: CONST FCC_A1 : FE% SN : VA : !

FeSn-20Laf.tdb: FCC_A1, type code %A, sha256 9fdbfba0e895036a…

27: PHASE FCC_A1 %A 2 1 1 !
28: CONST FCC_A1 : FE% SN : VA : !

FeSn-96Har-LB.tdb: FCC_A1, type code %A, sha256 ad3eeabb86656e73…

25: PHASE FCC_A1 %A 2 1 1 !
26: CONST FCC_A1 : FE% SN : VA : !

Example references (3 of 3; assessments first):

doi:10.1016/j.intermet.2010.01.026 Yu-Chih Huang, Wojciech Gierlotka, Sinn-Wen Chen, Sn–Bi–Fe thermodynamic modeling and Sn–Bi/Fe interfacial reactions, Intermetallics 18, 984-991 (2010).
assessment that models this phase
doi:10.1016/j.jallcom.2019.153200 Paul Lafaye, Caroline Toffolon-Masclet, Jean-Claude Crivello, Jean-Marc Joubert, Thermodynamic modelling of the Fe–Sn–Zr system based on new experiments and first-principles calculations, Journal of Alloys and Compounds 821, 153200 (2020).
assessment that models this phase
doi:10.1016/S0364-5916(96)00021-1 K.C. Hari Kumar, P. Wollants, L. Delaey, Calphad, 20, 139-49(1996).
assessment that models this phase

FE3SN2 (Fe–Sn)

Id: phase:fe-sn:fe3sn2; status assigned
Structure: Fe3Sn2 · hR10 · R-3m (166); type st:fe3sn2-hr10; 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_on_hull_entry_in_both, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: Fe 0.6000, Sn 0.4000
Stability: stable in 3 of 3 calculated diagram(s): 875.05–1080.32 K, x(Sn) 0.4–0.4
Literature: 20 values (20 accepted) from 1 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:fe-sn:fe3sn2
paper: paper:10.1016/j.intermet.2010.01.026:Fe3Sn2
tdb: tdb:FeSn-10Hua.tdb:FE3SN2, tdb:FeSn-20Laf.tdb:FE3SN2, tdb:FeSn-96Har-LB.tdb:FE3SN2

TDB models of FE3SN2 (3): PHASE and CONSTITUENT statements as written

FeSn-10Hua.tdb: FE3SN2, type code %, sha256 a4b20e684dcb573a…

60: PHASE FE3SN2 % 2 3 2  !
61: CONST FE3SN2 : FE : SN : !

FeSn-20Laf.tdb: FE3SN2, type code %, sha256 9fdbfba0e895036a…

57: PHASE FE3SN2 % 2 3 2  !
58: CONST FE3SN2 : FE : SN : !

FeSn-96Har-LB.tdb: FE3SN2, type code %, sha256 ad3eeabb86656e73…

55: PHASE FE3SN2 % 2 3 2  !
56: CONST FE3SN2 : FE : SN : !

Example references (4 of 4; assessments first):

doi:10.1016/j.intermet.2010.01.026 Yu-Chih Huang, Wojciech Gierlotka, Sinn-Wen Chen, Sn–Bi–Fe thermodynamic modeling and Sn–Bi/Fe interfacial reactions, Intermetallics 18, 984-991 (2010).
assessment that models this phase; reports values for this phase
doi:10.1016/S0364-5916(96)00021-1 K.C. Hari Kumar, P. Wollants, L. Delaey, Calphad, 20, 139-49(1996).
assessment that models this phase; cited as the source of values for this phase
doi:10.1016/j.jallcom.2019.153200 Paul Lafaye, Caroline Toffolon-Masclet, Jean-Claude Crivello, Jean-Marc Joubert, Thermodynamic modelling of the Fe–Sn–Zr system based on new experiments and first-principles calculations, Journal of Alloys and Compounds 821, 153200 (2020).
assessment that models this phase
doi:10.1007/bf01730231 M. Singh, S. Bhan, Contribution to the Fe—Sn system, J Mater Sci Lett 5, 733-735 (1986).
cited as the source of values for this phase

FE5SN3_B82 (Fe–Sn)

Id: phase:fe-sn:fe5sn3-b82; status needs_review
No structure assigned. Why: assessment_declared_blocked_by:stoichiometry_contradicts_B8_2; stoichiometry_contradicts_B8_2:FeSn-10Hua.tdb; stoichiometry_contradicts_B8_2:FeSn-20Laf.tdb; stoichiometry_contradicts_B8_2:FeSn-96Har-LB.tdb
Candidate (literature_printed): InNi2 · hP6 — printed with a label mapped to this phase
Candidate (name_token): InNi2 · B8_2 · hP6 · P6_3/mmc (194) — Strukturbericht/word 'B82' in the TDB name
Candidate (sgte_mmc2): InNi2 · B8_2 · hP6 · P6_3/mmc (194) — Hallstedt 2025 mmc2 row for FE5SN3_B82: Fe5Sn3
Candidate (tdb_comment): InNi2 · hP6 · P6_3/mmc — FeSn-10Hua.tdb: 'Prototype InNi2 (hP6, P6_3/mmc)'
Candidate (tdb_comment): InNi2 · hP6 · P6_3/mmc — FeSn-20Laf.tdb: 'Prototype InNi2 (hP6, P6_3/mmc)'
Candidate (tdb_comment): InNi2 · hP6 · P6_3/mmc — FeSn-96Har-LB.tdb: 'Prototype InNi2 (hP6, P6_3/mmc)'
Stoichiometry: Fe 0.6250, Sn 0.3750
Stability: stable in 3 of 3 calculated diagram(s): 1040.58–1181.15 K, x(Sn) 0.375–0.375
Literature: 14 values (14 accepted) from 1 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:fe-sn:fe5sn3-b82
paper: paper:10.1016/j.intermet.2010.01.026:Fe5Sn3
tdb: tdb:FeSn-10Hua.tdb:FE5SN3_B82, tdb:FeSn-20Laf.tdb:FE5SN3_B82, tdb:FeSn-96Har-LB.tdb:FE5SN3_B82

TDB models of FE5SN3_B82 (3): PHASE and CONSTITUENT statements as written

FeSn-10Hua.tdb: FE5SN3_B82, type code %, sha256 a4b20e684dcb573a…

55: PHASE FE5SN3_B82 % 2 5 3  !
56: CONST FE5SN3_B82 : FE : SN : !

FeSn-20Laf.tdb: FE5SN3_B82, type code %, sha256 9fdbfba0e895036a…

52: PHASE FE5SN3_B82 % 2 5 3  !
53: CONST FE5SN3_B82 : FE : SN : !

FeSn-96Har-LB.tdb: FE5SN3_B82, type code %, sha256 ad3eeabb86656e73…

50: PHASE FE5SN3_B82 % 2 5 3  !
51: CONST FE5SN3_B82 : FE : SN : !

Example references (4 of 4; assessments first):

doi:10.1016/j.intermet.2010.01.026 Yu-Chih Huang, Wojciech Gierlotka, Sinn-Wen Chen, Sn–Bi–Fe thermodynamic modeling and Sn–Bi/Fe interfacial reactions, Intermetallics 18, 984-991 (2010).
assessment that models this phase; reports values for this phase
doi:10.1016/S0364-5916(96)00021-1 K.C. Hari Kumar, P. Wollants, L. Delaey, Calphad, 20, 139-49(1996).
assessment that models this phase; cited as the source of values for this phase
doi:10.1016/j.jallcom.2019.153200 Paul Lafaye, Caroline Toffolon-Masclet, Jean-Claude Crivello, Jean-Marc Joubert, Thermodynamic modelling of the Fe–Sn–Zr system based on new experiments and first-principles calculations, Journal of Alloys and Compounds 821, 153200 (2020).
assessment that models this phase
doi:10.1007/bf01730231 M. Singh, S. Bhan, Contribution to the Fe—Sn system, J Mater Sci Lett 5, 733-735 (1986).
cited as the source of values for this phase

FESN_B35 (Fe–Sn)

Id: phase:fe-sn:fesn-b35; status assigned
Structure: CoSn · B35 · hP6 · P6/mmm (191); type st:b35-cosn-hp6; tier A: standard phase name; confidence high
Caveat: DFT agrees: on-hull mp-aaaabfls and oqmd-19577, space group 191
Stoichiometry: Fe 0.5000, Sn 0.5000
Stability: stable in 3 of 3 calculated diagram(s): 300–1042.51 K, x(Sn) 0.5–0.5
Literature: 28 values (24 accepted) from 2 papers
Interactive: phase registry entry

Names (8): corpus: corpus:phase:fe-sn:fesn-b35
mp: mp:mp-aaaabfls
oqmd: oqmd:oqmd-19577
paper: paper:10.1016/j.intermet.2010.01.026:FeSn, paper:10.1016/s0364-5916(96)00021-1:FeSn
tdb: tdb:FeSn-10Hua.tdb:FESN_B35, tdb:FeSn-20Laf.tdb:FESN_B35, tdb:FeSn-96Har-LB.tdb:FESN_B35

TDB models of FESN_B35 (3): PHASE and CONSTITUENT statements as written

FeSn-10Hua.tdb: FESN_B35, type code %, sha256 a4b20e684dcb573a…

65: PHASE FESN_B35 % 2 1 1  !
66: CONST FESN_B35 : FE : SN : !

FeSn-20Laf.tdb: FESN_B35, type code %, sha256 9fdbfba0e895036a…

62: PHASE FESN_B35 % 2 1 1  !
63: CONST FESN_B35 : FE : SN : !

FeSn-96Har-LB.tdb: FESN_B35, type code %, sha256 ad3eeabb86656e73…

60: PHASE FESN_B35 % 2 1 1  !
61: CONST FESN_B35 : FE : SN : !

Example references (4 of 4; assessments first):

doi:10.1016/j.intermet.2010.01.026 Yu-Chih Huang, Wojciech Gierlotka, Sinn-Wen Chen, Sn–Bi–Fe thermodynamic modeling and Sn–Bi/Fe interfacial reactions, Intermetallics 18, 984-991 (2010).
assessment that models this phase; reports values for this phase
doi:10.1016/S0364-5916(96)00021-1 K.C. Hari Kumar, P. Wollants, L. Delaey, Calphad, 20, 139-49(1996).
assessment that models this phase; cited as the source of values for this phase; reports values for this phase
doi:10.1016/j.jallcom.2019.153200 Paul Lafaye, Caroline Toffolon-Masclet, Jean-Claude Crivello, Jean-Marc Joubert, Thermodynamic modelling of the Fe–Sn–Zr system based on new experiments and first-principles calculations, Journal of Alloys and Compounds 821, 153200 (2020).
assessment that models this phase
doi:10.1007/bf01730231 M. Singh, S. Bhan, Contribution to the Fe—Sn system, J Mater Sci Lett 5, 733-735 (1986).
cited as the source of values for this phase

FESN2_C16 (Fe–Sn)

Id: phase:fe-sn:fesn2-c16; status assigned
Structure: Al2Cu · C16 · tI12 · I4/mcm (140); type st:c16-al2cu-ti12; tier A: standard phase name; confidence high
Stoichiometry: Fe 0.3333, Sn 0.6667
Stability: stable in 3 of 3 calculated diagram(s): 300–786.12 K, x(Sn) 0.66667–0.66667
Literature: 23 values (19 accepted) from 2 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:fe-sn:fesn2-c16
paper: paper:10.1016/j.intermet.2010.01.026:FeSn2, paper:10.1016/s0364-5916(96)00021-1:FeSn2
tdb: tdb:FeSn-10Hua.tdb:FESN2_C16, tdb:FeSn-20Laf.tdb:FESN2_C16, tdb:FeSn-96Har-LB.tdb:FESN2_C16

TDB models of FESN2_C16 (3): PHASE and CONSTITUENT statements as written

FeSn-10Hua.tdb: FESN2_C16, type code %, sha256 a4b20e684dcb573a…

70: PHASE FESN2_C16 % 2 1 2  !
71: CONST FESN2_C16 : FE : SN : !

FeSn-20Laf.tdb: FESN2_C16, type code %, sha256 9fdbfba0e895036a…

67: PHASE FESN2_C16 % 2 1 2  !
68: CONST FESN2_C16 : FE : SN : !

FeSn-96Har-LB.tdb: FESN2_C16, type code %, sha256 ad3eeabb86656e73…

65: PHASE FESN2_C16 % 2 1 2  !
66: CONST FESN2_C16 : FE : SN : !

Example references (4 of 4; assessments first):

doi:10.1016/j.intermet.2010.01.026 Yu-Chih Huang, Wojciech Gierlotka, Sinn-Wen Chen, Sn–Bi–Fe thermodynamic modeling and Sn–Bi/Fe interfacial reactions, Intermetallics 18, 984-991 (2010).
assessment that models this phase; reports values for this phase
doi:10.1016/S0364-5916(96)00021-1 K.C. Hari Kumar, P. Wollants, L. Delaey, Calphad, 20, 139-49(1996).
assessment that models this phase; cited as the source of values for this phase; reports values for this phase
doi:10.1016/j.jallcom.2019.153200 Paul Lafaye, Caroline Toffolon-Masclet, Jean-Claude Crivello, Jean-Marc Joubert, Thermodynamic modelling of the Fe–Sn–Zr system based on new experiments and first-principles calculations, Journal of Alloys and Compounds 821, 153200 (2020).
assessment that models this phase
doi:10.1016/0001-6160(75)90039-5 J.J Connolly, J.V McAllan, The tin-iron eutectic, Acta Metallurgica 23, 1209-1214 (1975).
cited as the source of values for this phase

HCP_A3 (Fe–Sn)

Id: phase:fe-sn: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 3 calculated diagram(s)
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:fe-sn:hcp-a3
tdb: tdb:FeSn-10Hua.tdb:HCP_A3, tdb:FeSn-20Laf.tdb:HCP_A3, tdb:FeSn-96Har-LB.tdb:HCP_A3

TDB models of HCP_A3 (3): PHASE and CONSTITUENT statements as written

FeSn-10Hua.tdb: HCP_A3, type code %A, sha256 a4b20e684dcb573a…

40: PHASE HCP_A3 %A 2 1 0.5 !
41: CONST HCP_A3 : FE SN : VA : !

FeSn-20Laf.tdb: HCP_A3, type code %A, sha256 9fdbfba0e895036a…

37: PHASE HCP_A3 %A 2 1 0.5 !
38: CONST HCP_A3 : FE SN : VA : !

FeSn-96Har-LB.tdb: HCP_A3, type code %A, sha256 ad3eeabb86656e73…

35: PHASE HCP_A3 %A 2 1 0.5 !
36: CONST HCP_A3 : FE SN : VA : !

Example references (3 of 3; assessments first):

doi:10.1016/j.intermet.2010.01.026 Yu-Chih Huang, Wojciech Gierlotka, Sinn-Wen Chen, Sn–Bi–Fe thermodynamic modeling and Sn–Bi/Fe interfacial reactions, Intermetallics 18, 984-991 (2010).
assessment that models this phase
doi:10.1016/j.jallcom.2019.153200 Paul Lafaye, Caroline Toffolon-Masclet, Jean-Claude Crivello, Jean-Marc Joubert, Thermodynamic modelling of the Fe–Sn–Zr system based on new experiments and first-principles calculations, Journal of Alloys and Compounds 821, 153200 (2020).
assessment that models this phase
doi:10.1016/S0364-5916(96)00021-1 K.C. Hari Kumar, P. Wollants, L. Delaey, Calphad, 20, 139-49(1996).
assessment that models this phase

LIQUID (Fe–Sn)

Id: phase:fe-sn:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 3 of 3 calculated diagram(s): 505.08–2500 K, x(Sn) 0–1
Literature: 28 values (28 accepted) from 1 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:fe-sn:liquid
paper: paper:10.1016/j.intermet.2010.01.026:Liquid
tdb: tdb:FeSn-10Hua.tdb:LIQUID, tdb:FeSn-20Laf.tdb:LIQUID, tdb:FeSn-96Har-LB.tdb:LIQUID

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

FeSn-10Hua.tdb: LIQUID, type code %, sha256 a4b20e684dcb573a…

25: PHASE LIQUID:L % 1 1 !
26: CONST LIQUID:L : FE SN : !

FeSn-20Laf.tdb: LIQUID, type code %, sha256 9fdbfba0e895036a…

22: PHASE LIQUID:L % 1 1 !
23: CONST LIQUID:L : FE SN : !

FeSn-96Har-LB.tdb: LIQUID, type code %, sha256 ad3eeabb86656e73…

20: PHASE LIQUID:L % 1 1 !
21: CONST LIQUID:L : FE SN : !

Example references (5 of 5; assessments first):

doi:10.1016/j.intermet.2010.01.026 Yu-Chih Huang, Wojciech Gierlotka, Sinn-Wen Chen, Sn–Bi–Fe thermodynamic modeling and Sn–Bi/Fe interfacial reactions, Intermetallics 18, 984-991 (2010).
assessment that models this phase; reports values for this phase
doi:10.1016/S0364-5916(96)00021-1 K.C. Hari Kumar, P. Wollants, L. Delaey, Calphad, 20, 139-49(1996).
assessment that models this phase; cited as the source of values for this phase
doi:10.1016/j.jallcom.2019.153200 Paul Lafaye, Caroline Toffolon-Masclet, Jean-Claude Crivello, Jean-Marc Joubert, Thermodynamic modelling of the Fe–Sn–Zr system based on new experiments and first-principles calculations, Journal of Alloys and Compounds 821, 153200 (2020).
assessment that models this phase
doi:10.1007/bf01730231 M. Singh, S. Bhan, Contribution to the Fe—Sn system, J Mater Sci Lett 5, 733-735 (1986).
cited as the source of values for this phase
doi:10.1016/0001-6160(75)90039-5 J.J Connolly, J.V McAllan, The tin-iron eutectic, Acta Metallurgica 23, 1209-1214 (1975).
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}
}