# Sc–Sn phases > Sc–Sn system: 11 phases (tier A 6, tier C 2, liquid 1, needs_review 2); 9 stable in a calculated diagram in the ORCHID phase registry, with names, structure type when the stored evidence supports an assignment under the stated tier rules, calculated stability, verbatim TDB PHASE/CONSTITUENT statements and example references. HTML: https://data.orchid-project.org/phases/pages/SC-SN.html · Markdown: https://data.orchid-project.org/phases/pages/SC-SN.md 11 phases (tier A 6, tier C 2, liquid 1, needs_review 2); 9 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](https://orchid-project.org/phases/?q=SC-SN) · [full JSON](https://data.orchid-project.org/phases/systems/SC-SN.json) · [Sc–Sn system page](https://data.orchid-project.org/systems/SC-SN.html) · [Markdown](https://data.orchid-project.org/phases/pages/SC-SN.md) · [field reference](https://data.orchid-project.org/phases/SCHEMA.md) Table: Phases of the Sc–Sn system (11) | Phase | Structure | Basis | Stability (calculated) | Literature values | TDB models | |---|---|---|---|---:|---:| | [DIAMOND_A4](#phase-sc-sn-a4-diamond); _phase:sc-sn:a4-diamond_ | C (diamond) · A4 · cF8 · Fd-3m (227) | tier A: standard phase name | not stable in 1 calculated diagram(s) | 0 | 1 | | [BCT_A5](#phase-sc-sn-a5-bct); _phase:sc-sn:a5-bct_ | beta-Sn · A5 · tI4 · I4_1/amd (141) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–504.71 K, x(Sn) 1–1 | 2 | 1 | | [BCC_A2](#phase-sc-sn-bcc-a2); _phase:sc-sn:bcc-a2_ | W · A2 · cI2 · Im-3m (229) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 1443.01–1817.97 K, x(Sn) 0–0.06751 | 0 | 1 | | [FCC_A1](#phase-sc-sn-fcc-a1); _phase:sc-sn:fcc-a1_ | Cu · A1 · cF4 · Fm-3m (225) | tier A: standard phase name | not stable in 1 calculated diagram(s) | 0 | 1 | | [HCP_A3](#phase-sc-sn-hcp-a3); _phase:sc-sn:hcp-a3_ | Mg · A3 · hP2 · P6_3/mmc (194) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–1607.99 K, x(Sn) 0–0.04683 | 2 | 1 | | [LIQUID](#phase-sc-sn-liquid); _phase:sc-sn:liquid_ | liquid | liquid | stable in 1 of 1 calculated diagram(s): 504.71–2500 K, x(Sn) 0–1 | 16 | 1 | | [SC11SN10](#phase-sc-sn-sc11sn10); _phase:sc-sn:sc11sn10_ | | needs_review | stable in 1 of 1 calculated diagram(s): 300–1225.79 K, x(Sn) 0.47619–0.47619 | 8 | 1 | | [SC5SN3_HT](#phase-sc-sn-sc5sn3); _phase:sc-sn:sc5sn3_ | | needs_review | stable in 1 of 1 calculated diagram(s): 1916.67–2069.24 K, x(Sn) 0.375–0.375 | 5 | 1 | | [SC5SN3_D88](#phase-sc-sn-sc5sn3-d88); _phase:sc-sn:sc5sn3-d88_ | Mn5Si3 · D8_8 · hP16 · P6_3/mcm (193) | tier A: standard phase name | stable in 1 of 1 calculated diagram(s): 300–1916.67 K, x(Sn) 0.375–0.375 | 7 | 1 | | [SC6SN5](#phase-sc-sn-sc6sn5); _phase:sc-sn:sc6sn5_ | Si5V6 · oI44 · Ibam (72) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 1 of 1 calculated diagram(s): 300–1643.94 K, x(Sn) 0.45455–0.45455 | 8 | 1 | | [SCSN2](#phase-sc-sn-scsn2); _phase:sc-sn:scsn2_ | ScSn2 · tI24 · I4_1/amd (141) | tier C: assessor-stated (Hallstedt 2025 crystallographic table) | stable in 1 of 1 calculated diagram(s): 300–1146.67 K, x(Sn) 0.66667–0.66667 | 7 | 1 | ## DIAMOND_A4 (Sc–Sn) - Id: `phase:sc-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 1 calculated diagram(s) - Literature: 0 values (0 accepted) from 0 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:sc-sn:a4-diamond) Names (2): _corpus: _corpus:phase:sc-sn:a4-diamond _tdb: _tdb:ScSn-13Idd.tdb:DIAMOND_A4 ### TDB models of DIAMOND_A4 (1): PHASE and CONSTITUENT statements as written [ScSn-13Idd.tdb](https://orchid-project.org/data/databases/sgte-binary/ScSn-13Idd.tdb): DIAMOND_A4, type code %, sha256 `a0ba1a0cb0016f10…` ~~~~text 52: PHASE DIAMOND_A4 % 1 1 ! 53: CONST DIAMOND_A4 : SN : ! ~~~~ Example references (1 of 1; assessments first): - [doi:10.1016/j.calphad.2013.01.006](https://doi.org/10.1016/j.calphad.2013.01.006) A. Iddaoudi, N. Selhaoui, M. Ait Amar, S. Kardellass, R. Karioui, L. Bouirden, Thermodynamic assessment of the Sc–Sn system, Calphad 41, 71-75 (2013). _assessment that models this phase_ ## BCT_A5 (Sc–Sn) - Id: `phase:sc-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 1 of 1 calculated diagram(s): 300–504.71 K, x(Sn) 1–1 - Literature: 2 values (2 accepted) from 1 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:sc-sn:a5-bct) Names (3): _corpus: _corpus:phase:sc-sn:a5-bct _paper: _paper:10.1016/j.calphad.2013.01.006:Sn _tdb: _tdb:ScSn-13Idd.tdb:BCT_A5 ### TDB models of BCT_A5 (1): PHASE and CONSTITUENT statements as written [ScSn-13Idd.tdb](https://orchid-project.org/data/databases/sgte-binary/ScSn-13Idd.tdb): BCT_A5, type code %, sha256 `a0ba1a0cb0016f10…` ~~~~text 57: PHASE BCT_A5 % 1 1 ! 58: CONST BCT_A5 : SN : ! ~~~~ Example references (2 of 2; assessments first): - [doi:10.1016/j.calphad.2013.01.006](https://doi.org/10.1016/j.calphad.2013.01.006) A. Iddaoudi, N. Selhaoui, M. Ait Amar, S. Kardellass, R. Karioui, L. Bouirden, Thermodynamic assessment of the Sc–Sn system, Calphad 41, 71-75 (2013). _assessment that models this phase; reports values for this phase_ - [doi:10.1016/0925-8388(94)06014-2](https://doi.org/10.1016/0925-8388%2894%2906014-2) A. Palenzona, P. Manfrinetti, The phase diagrams of the ScSn and ScPb systems, Journal of Alloys and Compounds 220, 157-160 (1995). _cited as the source of values for this phase_ ## BCC_A2 (Sc–Sn) - Id: `phase:sc-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 1 of 1 calculated diagram(s): 1443.01–1817.97 K, x(Sn) 0–0.06751 - Literature: 0 values (0 accepted) from 0 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:sc-sn:bcc-a2) Names (2): _corpus: _corpus:phase:sc-sn:bcc-a2 _tdb: _tdb:ScSn-13Idd.tdb:BCC_A2 ### TDB models of BCC_A2 (1): PHASE and CONSTITUENT statements as written [ScSn-13Idd.tdb](https://orchid-project.org/data/databases/sgte-binary/ScSn-13Idd.tdb): BCC_A2, type code %B, sha256 `a0ba1a0cb0016f10…` ~~~~text 42: PHASE BCC_A2 %B 2 1 3 ! 43: CONST BCC_A2 : SC% SN : VA : ! ~~~~ Example references (1 of 1; assessments first): - [doi:10.1016/j.calphad.2013.01.006](https://doi.org/10.1016/j.calphad.2013.01.006) A. Iddaoudi, N. Selhaoui, M. Ait Amar, S. Kardellass, R. Karioui, L. Bouirden, Thermodynamic assessment of the Sc–Sn system, Calphad 41, 71-75 (2013). _assessment that models this phase_ ## FCC_A1 (Sc–Sn) - Id: `phase:sc-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: not stable in 1 calculated diagram(s) - Literature: 0 values (0 accepted) from 0 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:sc-sn:fcc-a1) Names (2): _corpus: _corpus:phase:sc-sn:fcc-a1 _tdb: _tdb:ScSn-13Idd.tdb:FCC_A1 ### TDB models of FCC_A1 (1): PHASE and CONSTITUENT statements as written [ScSn-13Idd.tdb](https://orchid-project.org/data/databases/sgte-binary/ScSn-13Idd.tdb): FCC_A1, type code %A, sha256 `a0ba1a0cb0016f10…` ~~~~text 37: PHASE FCC_A1 %A 2 1 1 ! 38: CONST FCC_A1 : SC SN : VA : ! ~~~~ Example references (1 of 1; assessments first): - [doi:10.1016/j.calphad.2013.01.006](https://doi.org/10.1016/j.calphad.2013.01.006) A. Iddaoudi, N. Selhaoui, M. Ait Amar, S. Kardellass, R. Karioui, L. Bouirden, Thermodynamic assessment of the Sc–Sn system, Calphad 41, 71-75 (2013). _assessment that models this phase_ ## HCP_A3 (Sc–Sn) - Id: `phase:sc-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: stable in 1 of 1 calculated diagram(s): 300–1607.99 K, x(Sn) 0–0.04683 - Literature: 2 values (2 accepted) from 1 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:sc-sn:hcp-a3) Names (3): _corpus: _corpus:phase:sc-sn:hcp-a3 _paper: _paper:10.1016/j.calphad.2013.01.006:Sc _tdb: _tdb:ScSn-13Idd.tdb:HCP_A3 ### TDB models of HCP_A3 (1): PHASE and CONSTITUENT statements as written [ScSn-13Idd.tdb](https://orchid-project.org/data/databases/sgte-binary/ScSn-13Idd.tdb): HCP_A3, type code %A, sha256 `a0ba1a0cb0016f10…` ~~~~text 47: PHASE HCP_A3 %A 2 1 0.5 ! 48: CONST HCP_A3 : SC% SN : VA : ! ~~~~ Example references (2 of 2; assessments first): - [doi:10.1016/j.calphad.2013.01.006](https://doi.org/10.1016/j.calphad.2013.01.006) A. Iddaoudi, N. Selhaoui, M. Ait Amar, S. Kardellass, R. Karioui, L. Bouirden, Thermodynamic assessment of the Sc–Sn system, Calphad 41, 71-75 (2013). _assessment that models this phase; reports values for this phase_ - [doi:10.1007/s11106-006-0010-4](https://doi.org/10.1007/s11106-006-0010-4) O. V. Podarevskaya, V. G. Kudin, V. S. Zubchenko, V. S. Sudavtsova, Phase Diagram of the Scandium - Tin System, Powder Metall Met Ceram 44, 463-466 (2005). _cited as the source of values for this phase_ ## LIQUID (Sc–Sn) - Id: `phase:sc-sn:liquid`; status `assigned` - Structure: liquid; type `st:liquid`; liquid; confidence high - Stability: stable in 1 of 1 calculated diagram(s): 504.71–2500 K, x(Sn) 0–1 - Literature: 16 values (16 accepted) from 1 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:sc-sn:liquid) Names (3): _corpus: _corpus:phase:sc-sn:liquid _paper: _paper:10.1016/j.calphad.2013.01.006:Liq _tdb: _tdb:ScSn-13Idd.tdb:LIQUID ### TDB models of LIQUID (1): PHASE and CONSTITUENT statements as written [ScSn-13Idd.tdb](https://orchid-project.org/data/databases/sgte-binary/ScSn-13Idd.tdb): LIQUID, type code %, sha256 `a0ba1a0cb0016f10…` ~~~~text 32: PHASE LIQUID:L % 1 1 ! 33: CONST LIQUID:L : SC SN : ! ~~~~ Example references (3 of 3; assessments first): - [doi:10.1016/j.calphad.2013.01.006](https://doi.org/10.1016/j.calphad.2013.01.006) A. Iddaoudi, N. Selhaoui, M. Ait Amar, S. Kardellass, R. Karioui, L. Bouirden, Thermodynamic assessment of the Sc–Sn system, Calphad 41, 71-75 (2013). _assessment that models this phase; reports values for this phase_ - [doi:10.1007/s11106-006-0010-4](https://doi.org/10.1007/s11106-006-0010-4) O. V. Podarevskaya, V. G. Kudin, V. S. Zubchenko, V. S. Sudavtsova, Phase Diagram of the Scandium - Tin System, Powder Metall Met Ceram 44, 463-466 (2005). _cited as the source of values for this phase_ - [doi:10.1016/0925-8388(94)06014-2](https://doi.org/10.1016/0925-8388%2894%2906014-2) A. Palenzona, P. Manfrinetti, The phase diagrams of the ScSn and ScPb systems, Journal of Alloys and Compounds 220, 157-160 (1995). _cited as the source of values for this phase_ ## SC11SN10 (Sc–Sn) - Id: `phase:sc-sn:sc11sn10`; status `needs_review` - No structure assigned. Why: no_on_hull_entry_in_both; no_structure_token; sgte_mmc2_row_incomplete - Candidate (literature_printed): (Sc11Sn10) · ? — printed with a label mapped to this phase - Candidate (sgte_mmc2): (Sc11Sn10) — Hallstedt 2025 mmc2 row for SC11SN10: Sc11Sn10 - Stoichiometry: Sc 0.5238, Sn 0.4762 - Stability: stable in 1 of 1 calculated diagram(s): 300–1225.79 K, x(Sn) 0.47619–0.47619 - Literature: 8 values (8 accepted) from 1 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:sc-sn:sc11sn10) Names (3): _corpus: _corpus:phase:sc-sn:sc11sn10 _paper: _paper:10.1016/j.calphad.2013.01.006:Sc11Sn10 _tdb: _tdb:ScSn-13Idd.tdb:SC11SN10 ### TDB models of SC11SN10 (1): PHASE and CONSTITUENT statements as written [ScSn-13Idd.tdb](https://orchid-project.org/data/databases/sgte-binary/ScSn-13Idd.tdb): SC11SN10, type code %, sha256 `a0ba1a0cb0016f10…` ~~~~text 77: PHASE SC11SN10 % 2 11 10 ! 78: CONST SC11SN10 : SC : SN : ! ~~~~ Example references (3 of 3; assessments first): - [doi:10.1016/j.calphad.2013.01.006](https://doi.org/10.1016/j.calphad.2013.01.006) A. Iddaoudi, N. Selhaoui, M. Ait Amar, S. Kardellass, R. Karioui, L. Bouirden, Thermodynamic assessment of the Sc–Sn system, Calphad 41, 71-75 (2013). _assessment that models this phase; reports values for this phase_ - [doi:10.1007/s11106-006-0010-4](https://doi.org/10.1007/s11106-006-0010-4) O. V. Podarevskaya, V. G. Kudin, V. S. Zubchenko, V. S. Sudavtsova, Phase Diagram of the Scandium - Tin System, Powder Metall Met Ceram 44, 463-466 (2005). _cited as the source of values for this phase_ - [doi:10.1016/0925-8388(94)06014-2](https://doi.org/10.1016/0925-8388%2894%2906014-2) A. Palenzona, P. Manfrinetti, The phase diagrams of the ScSn and ScPb systems, Journal of Alloys and Compounds 220, 157-160 (1995). _cited as the source of values for this phase_ ## SC5SN3_HT (Sc–Sn) - Id: `phase:sc-sn:sc5sn3`; status `needs_review` - No structure assigned. Why: no_structure_token; polymorph_family:other phases of this system have the same composition; sgte_mmc2_row_incomplete - Candidate (dft_mp): P6_3/mcm (193) — on-hull MP Sc5Sn3 at x(SN)=0.3750 - Candidate (dft_oqmd): P63/mcm (193) — on-hull OQMD Sc5 Sn3 at x(SN)=0.3750 - Candidate (literature_printed): (Sc5Sn3-ht) · ? — printed with a label mapped to this phase - Candidate (sgte_mmc2): (Sc5Sn3-ht) — Hallstedt 2025 mmc2 row for SC5SN3_HT: Sc3Sn5 (high T) - Stoichiometry: Sc 0.6250, Sn 0.3750 - Stability: stable in 1 of 1 calculated diagram(s): 1916.67–2069.24 K, x(Sn) 0.375–0.375 - Literature: 5 values (5 accepted) from 1 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:sc-sn:sc5sn3) Names (3): _corpus: _corpus:phase:sc-sn:sc5sn3 _paper: _paper:10.1016/j.calphad.2013.01.006:β-Sc5Sn3 _tdb: _tdb:ScSn-13Idd.tdb:SC5SN3_HT ### TDB models of SC5SN3_HT (1): PHASE and CONSTITUENT statements as written [ScSn-13Idd.tdb](https://orchid-project.org/data/databases/sgte-binary/ScSn-13Idd.tdb): SC5SN3_HT, type code %, sha256 `a0ba1a0cb0016f10…` ~~~~text 67: PHASE SC5SN3_HT % 2 5 3 ! 68: CONST SC5SN3_HT : SC : SN : ! ~~~~ Example references (3 of 3; assessments first): - [doi:10.1016/j.calphad.2013.01.006](https://doi.org/10.1016/j.calphad.2013.01.006) A. Iddaoudi, N. Selhaoui, M. Ait Amar, S. Kardellass, R. Karioui, L. Bouirden, Thermodynamic assessment of the Sc–Sn system, Calphad 41, 71-75 (2013). _assessment that models this phase; reports values for this phase_ - [doi:10.1007/s11106-006-0010-4](https://doi.org/10.1007/s11106-006-0010-4) O. V. Podarevskaya, V. G. Kudin, V. S. Zubchenko, V. S. Sudavtsova, Phase Diagram of the Scandium - Tin System, Powder Metall Met Ceram 44, 463-466 (2005). _cited as the source of values for this phase_ - [doi:10.1016/0925-8388(94)06014-2](https://doi.org/10.1016/0925-8388%2894%2906014-2) A. Palenzona, P. Manfrinetti, The phase diagrams of the ScSn and ScPb systems, Journal of Alloys and Compounds 220, 157-160 (1995). _cited as the source of values for this phase_ ## SC5SN3_D88 (Sc–Sn) - Id: `phase:sc-sn:sc5sn3-d88`; status `assigned` - Structure: Mn5Si3 · D8_8 · hP16 · P6_3/mcm (193); type `st:d8-8-mn5si3-hp16`; tier A: standard phase name; confidence high - Stoichiometry: Sc 0.6250, Sn 0.3750 - Stability: stable in 1 of 1 calculated diagram(s): 300–1916.67 K, x(Sn) 0.375–0.375 - Literature: 7 values (7 accepted) from 1 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:sc-sn:sc5sn3-d88) Names (3): _corpus: _corpus:phase:sc-sn:sc5sn3-d88 _paper: _paper:10.1016/j.calphad.2013.01.006:α-Sc5Sn3 _tdb: _tdb:ScSn-13Idd.tdb:SC5SN3_D88 ### TDB models of SC5SN3_D88 (1): PHASE and CONSTITUENT statements as written [ScSn-13Idd.tdb](https://orchid-project.org/data/databases/sgte-binary/ScSn-13Idd.tdb): SC5SN3_D88, type code %, sha256 `a0ba1a0cb0016f10…` ~~~~text 62: PHASE SC5SN3_D88 % 2 5 3 ! 63: CONST SC5SN3_D88 : SC : SN : ! ~~~~ Example references (3 of 3; assessments first): - [doi:10.1016/j.calphad.2013.01.006](https://doi.org/10.1016/j.calphad.2013.01.006) A. Iddaoudi, N. Selhaoui, M. Ait Amar, S. Kardellass, R. Karioui, L. Bouirden, Thermodynamic assessment of the Sc–Sn system, Calphad 41, 71-75 (2013). _assessment that models this phase; reports values for this phase_ - [doi:10.1007/s11106-006-0010-4](https://doi.org/10.1007/s11106-006-0010-4) O. V. Podarevskaya, V. G. Kudin, V. S. Zubchenko, V. S. Sudavtsova, Phase Diagram of the Scandium - Tin System, Powder Metall Met Ceram 44, 463-466 (2005). _cited as the source of values for this phase_ - [doi:10.1016/0925-8388(94)06014-2](https://doi.org/10.1016/0925-8388%2894%2906014-2) A. Palenzona, P. Manfrinetti, The phase diagrams of the ScSn and ScPb systems, Journal of Alloys and Compounds 220, 157-160 (1995). _cited as the source of values for this phase_ ## SC6SN5 (Sc–Sn) - Id: `phase:sc-sn:sc6sn5`; status `assigned` - Structure: Si5V6 · oI44 · Ibam (72); type `st:si5v6-oi44`; 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](https://doi.org/10.1016/j.calphad.2025.102833) - Caveat: not certain from the name or DFT alone (no_on_hull_entry_in_oqmd, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system - Stoichiometry: Sc 0.5455, Sn 0.4545 - Stability: stable in 1 of 1 calculated diagram(s): 300–1643.94 K, x(Sn) 0.45455–0.45455 - Literature: 8 values (8 accepted) from 1 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:sc-sn:sc6sn5) Names (3): _corpus: _corpus:phase:sc-sn:sc6sn5 _paper: _paper:10.1016/j.calphad.2013.01.006:Sc6Sn5 _tdb: _tdb:ScSn-13Idd.tdb:SC6SN5 ### TDB models of SC6SN5 (1): PHASE and CONSTITUENT statements as written [ScSn-13Idd.tdb](https://orchid-project.org/data/databases/sgte-binary/ScSn-13Idd.tdb): SC6SN5, type code %, sha256 `a0ba1a0cb0016f10…` ~~~~text 72: PHASE SC6SN5 % 2 6 5 ! 73: CONST SC6SN5 : SC : SN : ! ~~~~ Example references (3 of 3; assessments first): - [doi:10.1016/j.calphad.2013.01.006](https://doi.org/10.1016/j.calphad.2013.01.006) A. Iddaoudi, N. Selhaoui, M. Ait Amar, S. Kardellass, R. Karioui, L. Bouirden, Thermodynamic assessment of the Sc–Sn system, Calphad 41, 71-75 (2013). _assessment that models this phase; reports values for this phase_ - [doi:10.1007/s11106-006-0010-4](https://doi.org/10.1007/s11106-006-0010-4) O. V. Podarevskaya, V. G. Kudin, V. S. Zubchenko, V. S. Sudavtsova, Phase Diagram of the Scandium - Tin System, Powder Metall Met Ceram 44, 463-466 (2005). _cited as the source of values for this phase_ - [doi:10.1016/0925-8388(94)06014-2](https://doi.org/10.1016/0925-8388%2894%2906014-2) A. Palenzona, P. Manfrinetti, The phase diagrams of the ScSn and ScPb systems, Journal of Alloys and Compounds 220, 157-160 (1995). _cited as the source of values for this phase_ ## SCSN2 (Sc–Sn) - Id: `phase:sc-sn:scsn2`; status `assigned` - Structure: ScSn2 · tI24 · I4_1/amd (141); type `st:scsn2-ti24`; 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](https://doi.org/10.1016/j.calphad.2025.102833) - Caveat: not certain from the name or DFT alone (dft_space_group_141_matches_5_structure_types, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system - Stoichiometry: Sc 0.3333, Sn 0.6667 - Stability: stable in 1 of 1 calculated diagram(s): 300–1146.67 K, x(Sn) 0.66667–0.66667 - Literature: 7 values (7 accepted) from 1 papers - Interactive: [phase registry entry](https://orchid-project.org/phases/#phase:sc-sn:scsn2) Names (3): _corpus: _corpus:phase:sc-sn:scsn2 _paper: _paper:10.1016/j.calphad.2013.01.006:ScSn2 _tdb: _tdb:ScSn-13Idd.tdb:SCSN2 ### TDB models of SCSN2 (1): PHASE and CONSTITUENT statements as written [ScSn-13Idd.tdb](https://orchid-project.org/data/databases/sgte-binary/ScSn-13Idd.tdb): SCSN2, type code %, sha256 `a0ba1a0cb0016f10…` ~~~~text 82: PHASE SCSN2 % 2 1 2 ! 83: CONST SCSN2 : SC : SN : ! ~~~~ Example references (3 of 3; assessments first): - [doi:10.1016/j.calphad.2013.01.006](https://doi.org/10.1016/j.calphad.2013.01.006) A. Iddaoudi, N. Selhaoui, M. Ait Amar, S. Kardellass, R. Karioui, L. Bouirden, Thermodynamic assessment of the Sc–Sn system, Calphad 41, 71-75 (2013). _assessment that models this phase; reports values for this phase_ - [doi:10.1016/0925-8388(94)06014-2](https://doi.org/10.1016/0925-8388%2894%2906014-2) A. Palenzona, P. Manfrinetti, The phase diagrams of the ScSn and ScPb systems, Journal of Alloys and Compounds 220, 157-160 (1995). _cited as the source of values for this phase_ - [doi:10.1007/s11106-006-0010-4](https://doi.org/10.1007/s11106-006-0010-4) O. V. Podarevskaya, V. G. Kudin, V. S. Zubchenko, V. S. Sudavtsova, Phase Diagram of the Scandium - Tin System, Powder Metall Met Ceram 44, 463-466 (2005). _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). https://doi.org/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). https://doi.org/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. ```bibtex @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} } ``` --- Derived data CC BY 4.0 ([licence](https://creativecommons.org/licenses/by/4.0/)): cite the ORCHID phase registry and the sources named on the page (TDB assessments, Hallstedt 2025, Materials Project, OQMD). TDB statements are quoted as written; parameter expressions are not reproduced. Field reference: [SCHEMA.md](https://data.orchid-project.org/phases/SCHEMA.md). Machine-readable guide: [llms.txt](https://data.orchid-project.org/llms.txt).