# Cu–Si system

> Cu–Si system: 146 accepted literature values (invariant reaction 130, crystal structure 14, phase transition 2) and 9 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote.

HTML: https://data.orchid-project.org/systems/CU-SI.html · Markdown: https://data.orchid-project.org/systems/CU-SI.md

146 accepted literature values from 4 paper(s) (experimental 71, model 65, unspecified 10); 9 calculated phase diagram(s). 9 further extracted value(s) not accepted by the reader-agreement checks are only in the JSON/CSV.

Data: [JSON](https://data.orchid-project.org/literature/systems/CU-SI.json) · [CSV](https://data.orchid-project.org/systems/CU-SI.csv) · [interactive explorer](https://orchid-project.org/data-explorer/#CU-SI) · [interactive phase diagram](https://orchid-project.org/phase-diagrams/#CU-SI/CuSi-00Yan.json) · [phases (17)](https://data.orchid-project.org/phases/pages/CU-SI.html) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/CU-SI.html) · [Markdown](https://data.orchid-project.org/systems/CU-SI.md)

Table: Accepted values by evidence class

| Evidence class | Values |
|---|---:|
| experimental | 71 |
| model | 65 |
| unspecified | 10 |

Table: Accepted values by property group

| Property group | Values |
|---|---:|
| invariant reaction | 130 |
| phase transition | 2 |
| crystal structure | 14 |

## Calculated phase diagrams

Binary phase diagrams calculated with pycalphad 0.11.2 from the SGTE binary collection (Hallstedt 2025, CC BY 4.0). Evidence class: model.

Table: Assessments with a calculated phase diagram

| TDB file | Assessment | SHA-256 | Links |
|---|---|---|---|
| CuSi-00Yan.tdb | X. Yan, Y.A. Chang, J. Alloys Compd., 308, 221-29(2000). [doi:10.1016/S0925-8388(00)00983-X](https://doi.org/10.1016/S0925-8388%2800%2900983-X) | `f728174b3aa223c6fbbf1728d80a8739ade3dc06d3b0d4cdc25361dcae07255b` | [viewer](https://orchid-project.org/phase-diagrams/#CU-SI/CuSi-00Yan.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/CuSi-00Yan.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/CuSi-00Yan.json) |
| CuSi-08Shi.tdb | D. Shin, J.E. Saal, Z.-K. Liu, Calphad, 32, 520-26(2008). [doi:10.1016/j.calphad.2008.05.003](https://doi.org/10.1016/j.calphad.2008.05.003) | `9e7184ce9a8ca0c4efdbe9acfbd5c65388664354ae3325a39a5a3a7a89beb4bb` | [viewer](https://orchid-project.org/phase-diagrams/#CU-SI/CuSi-08Shi.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/CuSi-08Shi.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/CuSi-08Shi.json) |
| CuSi-13Gie.tdb | W. Gierlotka, M.A. Haque, J. Chem. Thermodyn., 57, 32-38(2013). 2020.12.06: Modified for use with GES6. [doi:10.1016/j.jct.2012.07.025](https://doi.org/10.1016/j.jct.2012.07.025) | `5471b8fafdfddb9a347136002fa91021d2a1d0a878468b800ae6c44a6bf63d52` | [viewer](https://orchid-project.org/phase-diagrams/#CU-SI/CuSi-13Gie.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/CuSi-13Gie.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/CuSi-13Gie.json) |
| CuSi-16Hal.tdb | B. Hallstedt, J. Groebner, M. Hampl, R. Schmid-Fetzer, Calphad, 53, 25-38(2016). [doi:10.1016/j.calphad.2016.03.002](https://doi.org/10.1016/j.calphad.2016.03.002) | `858bf3eb9583bf24e2f6b1f5d86ac393828f016135da562cf4863fc887659b98` | [viewer](https://orchid-project.org/phase-diagrams/#CU-SI/CuSi-16Hal.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/CuSi-16Hal.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/CuSi-16Hal.json) |
| CuSi-19Sol.tdb | L. Soldi, A. Laplace, M. Roskosz, S. Gosse, J. Alloys Compd., 803, 61-70(2019). [doi:10.1016/j.jallcom.2019.06.236](https://doi.org/10.1016/j.jallcom.2019.06.236) | `f7b1e3d5d7f2e10c5cf142ecc77838cb2b1a7383944c4680a5facf58468f630a` | [viewer](https://orchid-project.org/phase-diagrams/#CU-SI/CuSi-19Sol.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/CuSi-19Sol.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/CuSi-19Sol.json) |
| CuSi-24Kro.tdb | A. Kroupa, O. Zobac, A. Zemanova, K.W. Richter, J. Phase Equilib. Diffus., 45, 1206-43(2024). [doi:10.1007/s11669-024-01160-5](https://doi.org/10.1007/s11669-024-01160-5) | `649b0d49d2e75ff2f64213df29c00beeec3e643bee4ad3a39c8b2d6d1816e6f4` | [viewer](https://orchid-project.org/phase-diagrams/#CU-SI/CuSi-24Kro.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/CuSi-24Kro.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/CuSi-24Kro.json) |
| CuSi-98Jac.tdb | M.H.G. Jacobs, T. Buehler, COST 507, Final report round 2, 1998. | `8f97b6dac06196e8d32c8d308dd95cb864abcb11994e41050c10565548935ab9` | [viewer](https://orchid-project.org/phase-diagrams/#CU-SI/CuSi-98Jac.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/CuSi-98Jac.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/CuSi-98Jac.json) |
| CuSi-99Fri-LB.tdb | S.G. Fries, T. Jantzen, I. Hurtado, H.L. Lukas, unpublished work, 1999. | `1dbb097e2303a64ddc49f8b6b4ae04e5522a73ce6ce36198c6a8c51956b49a7e` | [viewer](https://orchid-project.org/phase-diagrams/#CU-SI/CuSi-99Fri-LB.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/CuSi-99Fri-LB.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/CuSi-99Fri-LB.json) |
| CuSi-99Fri-alt.tdb | S.G. Fries, T. Jantzen, I. Hurtado, H.L. Lukas, unpublished work, 1999. | `290a3b7d57ad7f6c05ce0cf34c3209e9e32d2d4178945aaf608b3402547cc078` | [viewer](https://orchid-project.org/phase-diagrams/#CU-SI/CuSi-99Fri-alt.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/CuSi-99Fri-alt.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/CuSi-99Fri-alt.json) |

Table: Calculated three-phase invariants (model, mole fraction of the second component)

| TDB file | T (K) | Phases at the invariant |
|---|---:|---|
| CuSi-00Yan.tdb | 1126.33 | FCC_A1 (x(Si) 0.11138) + BCC_A2 (x(Si) 0.14595) + LIQUID (x(Si) 0.15701) |
| CuSi-00Yan.tdb | 1115.36 | FCC_A1 (x(Si) 0.11228) + HCP_A3 (x(Si) 0.13047) + BCC_A2 (x(Si) 0.14674) |
| CuSi-00Yan.tdb | 1097.06 | BCC_A2 (x(Si) 0.16708) + CU33SI7 (x(Si) 0.175) + LIQUID (x(Si) 0.18687) |
| CuSi-00Yan.tdb | 1097.05 | BCC_A2 (x(Si) 0.16699) + CU33SI7 (x(Si) 0.175) + LIQUID (x(Si) 0.18675) |
| CuSi-00Yan.tdb | 1093.44 | CU33SI7 (x(Si) 0.175) + LIQUID (x(Si) 0.19188) + CU19SI6 (x(Si) 0.24) |
| CuSi-00Yan.tdb | 1093.44 | CU33SI7 (x(Si) 0.175) + LIQUID (x(Si) 0.19206) + CU19SI6 (x(Si) 0.24) |
| CuSi-00Yan.tdb | 1093.44 | CU33SI7 (x(Si) 0.175) + LIQUID (x(Si) 0.19218) + CU19SI6 (x(Si) 0.24) |
| CuSi-00Yan.tdb | 1075.6 | CU19SI6 (x(Si) 0.24) + LIQUID (x(Si) 0.3073) + DIAMOND_A4 (x(Si) 1) |
| CuSi-00Yan.tdb | 1075.6 | CU19SI6 (x(Si) 0.24) + LIQUID (x(Si) 0.30734) + DIAMOND_A4 (x(Si) 1) |
| CuSi-00Yan.tdb | 1073.8 | CU33SI7 (x(Si) 0.175) + CU15SI4 (x(Si) 0.2105) + CU19SI6 (x(Si) 0.24) |
| CuSi-00Yan.tdb | 1060.09 | HCP_A3 (x(Si) 0.14233) + BCC_A2 (x(Si) 0.15677) + CU33SI7 (x(Si) 0.175) |
| CuSi-00Yan.tdb | 1060.09 | HCP_A3 (x(Si) 0.14226) + BCC_A2 (x(Si) 0.15672) + CU33SI7 (x(Si) 0.175) |
| CuSi-00Yan.tdb | 1001.18 | HCP_A3 (x(Si) 0.13873) + CU56SI11_A13 (x(Si) 0.1642) + CU33SI7 (x(Si) 0.175) |
| CuSi-00Yan.tdb | 1001.18 | HCP_A3 (x(Si) 0.13878) + CU56SI11_A13 (x(Si) 0.1642) + CU33SI7 (x(Si) 0.175) |
| CuSi-00Yan.tdb | 1001.18 | HCP_A3 (x(Si) 0.13871) + CU56SI11_A13 (x(Si) 0.1642) + CU33SI7 (x(Si) 0.175) |
| CuSi-00Yan.tdb | 984.13 | CU56SI11_A13 (x(Si) 0.1642) + CU33SI7 (x(Si) 0.175) + CU15SI4 (x(Si) 0.2105) |
| CuSi-00Yan.tdb | 824.24 | FCC_A1 (x(Si) 0.09688) + HCP_A3 (x(Si) 0.11511) + CU56SI11_A13 (x(Si) 0.1642) |
| CuSi-08Shi.tdb | 1124.95 | FCC_A1 (x(Si) 0.11539) + BCC_A2 (x(Si) 0.14237) + LIQUID (x(Si) 0.15692) |
| CuSi-08Shi.tdb | 1111.53 | FCC_A1 (x(Si) 0.116) + HCP_A3 (x(Si) 0.1321) + BCC_A2 (x(Si) 0.14299) |
| CuSi-08Shi.tdb | 1096.87 | BCC_A2 (x(Si) 0.16241) + CU33SI7 (x(Si) 0.175) + LIQUID (x(Si) 0.18575) |
| CuSi-08Shi.tdb | 1095.19 | CU33SI7 (x(Si) 0.175) + LIQUID (x(Si) 0.18925) + CU19SI6 (x(Si) 0.24) |
| CuSi-08Shi.tdb | 1095.19 | CU33SI7 (x(Si) 0.175) + LIQUID (x(Si) 0.18942) + CU19SI6 (x(Si) 0.24) |
| CuSi-08Shi.tdb | 1075.83 | CU19SI6 (x(Si) 0.24) + LIQUID (x(Si) 0.31843) + DIAMOND_A4 (x(Si) 1) |
| CuSi-08Shi.tdb | 1075.83 | CU19SI6 (x(Si) 0.24) + LIQUID (x(Si) 0.31847) + DIAMOND_A4 (x(Si) 1) |
| CuSi-08Shi.tdb | 1070.18 | CU33SI7 (x(Si) 0.175) + CU15SI4 (x(Si) 0.2105) + CU19SI6 (x(Si) 0.24) |
| CuSi-08Shi.tdb | 1059.99 | HCP_A3 (x(Si) 0.14356) + BCC_A2 (x(Si) 0.15307) + CU33SI7 (x(Si) 0.175) |
| CuSi-08Shi.tdb | 1059.99 | HCP_A3 (x(Si) 0.14354) + BCC_A2 (x(Si) 0.15305) + CU33SI7 (x(Si) 0.175) |
| CuSi-08Shi.tdb | 997.57 | HCP_A3 (x(Si) 0.13771) + CU56SI11_A13 (x(Si) 0.1642) + CU33SI7 (x(Si) 0.175) |
| CuSi-08Shi.tdb | 997.57 | HCP_A3 (x(Si) 0.13771) + CU56SI11_A13 (x(Si) 0.1642) + CU33SI7 (x(Si) 0.175) |
| CuSi-08Shi.tdb | 997.57 | HCP_A3 (x(Si) 0.1377) + CU56SI11_A13 (x(Si) 0.1642) + CU33SI7 (x(Si) 0.175) |
| CuSi-08Shi.tdb | 990.82 | CU56SI11_A13 (x(Si) 0.1642) + CU33SI7 (x(Si) 0.175) + CU15SI4 (x(Si) 0.2105) |
| CuSi-08Shi.tdb | 822.83 | FCC_A1 (x(Si) 0.09596) + HCP_A3 (x(Si) 0.11061) + CU56SI11_A13 (x(Si) 0.1642) |
| CuSi-13Gie.tdb | 1123.94 | FCC_A1 (x(Si) 0.11368) + BCC_A2 (x(Si) 0.1384) + LIQUID (x(Si) 0.16373) |
| CuSi-13Gie.tdb | 1115.07 | FCC_A1 (x(Si) 0.11472) + HCP_A3 (x(Si) 0.12503) + BCC_A2 (x(Si) 0.13929) |
| CuSi-13Gie.tdb | 1095.15 | BCC_A2 (x(Si) 0.17277) + CU33SI7_HT (x(Si) 0.175) + LIQUID (x(Si) 0.1863) |
| CuSi-13Gie.tdb | 1093.22 | CU33SI7_HT (x(Si) 0.175) + LIQUID (x(Si) 0.18936) + CU3SI_HT (x(Si) 0.24) |
| CuSi-13Gie.tdb | 1073.86 | CU3SI_HT (x(Si) 0.24) + LIQUID (x(Si) 0.3256) + DIAMOND_A4 (x(Si) 1) |
| CuSi-13Gie.tdb | 1070.55 | CU33SI7_HT (x(Si) 0.175) + CU15SI4 (x(Si) 0.21053) + CU3SI_HT (x(Si) 0.24) |
| CuSi-13Gie.tdb | 1062.62 | HCP_A3 (x(Si) 0.14022) + BCC_A2 (x(Si) 0.15281) + CU33SI7_HT (x(Si) 0.175) |
| CuSi-13Gie.tdb | 1062.62 | HCP_A3 (x(Si) 0.14025) + BCC_A2 (x(Si) 0.15284) + CU33SI7_HT (x(Si) 0.175) |
| CuSi-13Gie.tdb | 1005.28 | CU33SI7_HT (x(Si) 0.175) + CU33SI7_A13 (x(Si) 0.175) + CU15SI4 (x(Si) 0.21053) |
| CuSi-13Gie.tdb | 1005.28 | HCP_A3 (x(Si) 0.13526) + CU33SI7_A13 (x(Si) 0.175) + CU33SI7_HT (x(Si) 0.175) |
| CuSi-13Gie.tdb | 1005.28 | HCP_A3 (x(Si) 0.1352) + CU33SI7_HT (x(Si) 0.175) + CU33SI7_A13 (x(Si) 0.175) |
| CuSi-13Gie.tdb | 892.37 | CU15SI4 (x(Si) 0.21053) + CU3SI_MT (x(Si) 0.235) + CU3SI_HT (x(Si) 0.24) |
| CuSi-13Gie.tdb | 842 | CU15SI4 (x(Si) 0.21053) + CU3SI_LT (x(Si) 0.23) + CU3SI_MT (x(Si) 0.235) |
| CuSi-13Gie.tdb | 828.03 | CU3SI_MT (x(Si) 0.235) + CU3SI_HT (x(Si) 0.24) + DIAMOND_A4 (x(Si) 1) |
| CuSi-13Gie.tdb | 825.38 | FCC_A1 (x(Si) 0.09702) + HCP_A3 (x(Si) 0.10789) + CU33SI7_A13 (x(Si) 0.175) |
| CuSi-13Gie.tdb | 740 | CU3SI_LT (x(Si) 0.23) + CU3SI_MT (x(Si) 0.235) + DIAMOND_A4 (x(Si) 1) |
| CuSi-16Hal.tdb | 1122.79 | FCC_A1 (x(Si) 0.11568) + BCC_A2 (x(Si) 0.14256) + LIQUID (x(Si) 0.16113) |
| CuSi-16Hal.tdb | 1112.29 | FCC_A1 (x(Si) 0.11612) + HCP_A3 (x(Si) 0.12803) + BCC_A2 (x(Si) 0.14302) |
| CuSi-16Hal.tdb | 1093.8 | BCC_A2 (x(Si) 0.15979) + CU33SI7_HT (x(Si) 0.175) + LIQUID (x(Si) 0.18546) |
| CuSi-16Hal.tdb | 1091.86 | CU33SI7_HT (x(Si) 0.175) + LIQUID (x(Si) 0.18958) + CU3SI_HT (x(Si) 0.24) |
| CuSi-16Hal.tdb | 1079.56 | CU3SI_HT (x(Si) 0.24) + LIQUID (x(Si) 0.31164) + DIAMOND_A4 (x(Si) 1) |
| CuSi-16Hal.tdb | 1072.35 | CU33SI7_HT (x(Si) 0.175) + CU15SI4_D86 (x(Si) 0.21053) + CU3SI_HT (x(Si) 0.24) |
| CuSi-16Hal.tdb | 1055.17 | HCP_A3 (x(Si) 0.13593) + BCC_A2 (x(Si) 0.15041) + CU33SI7_HT (x(Si) 0.175) |
| CuSi-16Hal.tdb | 1055.17 | HCP_A3 (x(Si) 0.13589) + BCC_A2 (x(Si) 0.15038) + CU33SI7_HT (x(Si) 0.175) |
| CuSi-16Hal.tdb | 1007.32 | CU33SI7_HT (x(Si) 0.175) + CU33SI7_A13 (x(Si) 0.175) + CU15SI4_D86 (x(Si) 0.21053) |
| CuSi-16Hal.tdb | 1007.32 | HCP_A3 (x(Si) 0.13179) + CU33SI7_A13 (x(Si) 0.175) + CU33SI7_HT (x(Si) 0.175) |
| CuSi-16Hal.tdb | 1007.32 | HCP_A3 (x(Si) 0.13176) + CU33SI7_HT (x(Si) 0.175) + CU33SI7_A13 (x(Si) 0.175) |
| CuSi-16Hal.tdb | 888.2 | CU15SI4_D86 (x(Si) 0.21053) + CU3SI_MT (x(Si) 0.235) + CU3SI_HT (x(Si) 0.24) |
| CuSi-16Hal.tdb | 831.08 | CU3SI_MT (x(Si) 0.235) + CU3SI_HT (x(Si) 0.24) + DIAMOND_A4 (x(Si) 1) |
| CuSi-16Hal.tdb | 825.43 | FCC_A1 (x(Si) 0.09464) + HCP_A3 (x(Si) 0.10757) + CU33SI7_A13 (x(Si) 0.175) |
| CuSi-16Hal.tdb | 822.22 | CU15SI4_D86 (x(Si) 0.21053) + CU3SI_LT (x(Si) 0.23) + CU3SI_MT (x(Si) 0.235) |
| CuSi-16Hal.tdb | 749.5 | CU3SI_LT (x(Si) 0.23) + CU3SI_MT (x(Si) 0.235) + DIAMOND_A4 (x(Si) 1) |
| CuSi-19Sol.tdb | 1118 | FCC_A1 (x(Si) 0.11197) + BCC_A2 (x(Si) 0.13712) + LIQUID (x(Si) 0.16579) |
| CuSi-19Sol.tdb | 1107.43 | FCC_A1 (x(Si) 0.11305) + HCP_A3 (x(Si) 0.1209) + BCC_A2 (x(Si) 0.13798) |
| CuSi-19Sol.tdb | 1094.48 | BCC_A2 (x(Si) 0.14779) + CU33SI7_HT (x(Si) 0.175) + LIQUID (x(Si) 0.18382) |
| CuSi-19Sol.tdb | 1094.48 | BCC_A2 (x(Si) 0.14777) + CU33SI7_HT (x(Si) 0.175) + LIQUID (x(Si) 0.18379) |
| CuSi-19Sol.tdb | 1092.89 | CU33SI7_HT (x(Si) 0.175) + LIQUID (x(Si) 0.1881) + CU3SI_HT (x(Si) 0.24) |
| CuSi-19Sol.tdb | 1092.89 | CU33SI7_HT (x(Si) 0.175) + LIQUID (x(Si) 0.18826) + CU3SI_HT (x(Si) 0.24) |
| CuSi-19Sol.tdb | 1074.65 | CU3SI_HT (x(Si) 0.24) + LIQUID (x(Si) 0.31518) + DIAMOND_A4 (x(Si) 1) |
| CuSi-19Sol.tdb | 1074.57 | CU33SI7_HT (x(Si) 0.175) + CU15SI4_D86 (x(Si) 0.21053) + CU3SI_HT (x(Si) 0.24) |
| CuSi-19Sol.tdb | 1056.65 | HCP_A3 (x(Si) 0.12845) + BCC_A2 (x(Si) 0.14461) + CU33SI7_HT (x(Si) 0.175) |
| CuSi-19Sol.tdb | 1056.65 | HCP_A3 (x(Si) 0.12843) + BCC_A2 (x(Si) 0.14459) + CU33SI7_HT (x(Si) 0.175) |
| CuSi-19Sol.tdb | 1005.92 | CU33SI7_HT (x(Si) 0.175) + CU33SI7_A13 (x(Si) 0.175) + CU15SI4_D86 (x(Si) 0.21053) |
| CuSi-19Sol.tdb | 1005.92 | HCP_A3 (x(Si) 0.12805) + CU33SI7_A13 (x(Si) 0.175) + CU33SI7_HT (x(Si) 0.175) |
| CuSi-19Sol.tdb | 1005.92 | HCP_A3 (x(Si) 0.12804) + CU33SI7_HT (x(Si) 0.175) + CU33SI7_A13 (x(Si) 0.175) |
| CuSi-19Sol.tdb | 893.46 | CU15SI4_D86 (x(Si) 0.21053) + CU3SI_MT (x(Si) 0.235) + CU3SI_HT (x(Si) 0.24) |
| CuSi-19Sol.tdb | 843.74 | FCC_A1 (x(Si) 0.10728) + HCP_A3 (x(Si) 0.11588) + CU33SI7_A13 (x(Si) 0.175) |
| CuSi-19Sol.tdb | 827.96 | CU15SI4_D86 (x(Si) 0.21053) + CU3SI_LT (x(Si) 0.23) + CU3SI_MT (x(Si) 0.235) |
| CuSi-19Sol.tdb | 827.94 | CU3SI_MT (x(Si) 0.235) + CU3SI_HT (x(Si) 0.24) + DIAMOND_A4 (x(Si) 1) |
| CuSi-19Sol.tdb | 754.11 | CU3SI_LT (x(Si) 0.23) + CU3SI_MT (x(Si) 0.235) + DIAMOND_A4 (x(Si) 1) |
| CuSi-24Kro.tdb | 1121.72 | FCC_A1 (x(Si) 0.11512) + BCC_A2 (x(Si) 0.14206) + LIQUID (x(Si) 0.16026) |
| CuSi-24Kro.tdb | 1112.6 | FCC_A1 (x(Si) 0.11552) + HCP_A3 (x(Si) 0.12666) + BCC_A2 (x(Si) 0.14247) |
| CuSi-24Kro.tdb | 1092 | BCC_A2 (x(Si) 0.1598) + CU33SI7_HT (x(Si) 0.17782) + LIQUID (x(Si) 0.18526) |
| CuSi-24Kro.tdb | 1091.23 | CU33SI7_HT (x(Si) 0.17904) + LIQUID (x(Si) 0.18784) + CU3SI_HT (x(Si) 0.23732) |
| CuSi-24Kro.tdb | 1085.87 | CU3SI_HT (x(Si) 0.24976) + LIQUID (x(Si) 0.31349) + DIAMOND_A4 (x(Si) 1) |
| CuSi-24Kro.tdb | 1072.02 | CU33SI7_HT (x(Si) 0.1786) + CU15SI4_D86 (x(Si) 0.21053) + CU3SI_HT (x(Si) 0.23719) |
| CuSi-24Kro.tdb | 1053.89 | HCP_A3 (x(Si) 0.13468) + BCC_A2 (x(Si) 0.15002) + CU33SI7_HT (x(Si) 0.17248) |
| CuSi-24Kro.tdb | 1006.91 | CU33SI7_HT (x(Si) 0.17358) + CU33SI7_A13 (x(Si) 0.17545) + CU15SI4_D86 (x(Si) 0.21053) |
| CuSi-24Kro.tdb | 1005.04 | HCP_A3 (x(Si) 0.13029) + CU33SI7_HT (x(Si) 0.17148) + CU33SI7_A13 (x(Si) 0.17473) |
| CuSi-24Kro.tdb | 887 | CU15SI4_D86 (x(Si) 0.21053) + CU3SI_MT (x(Si) 0.23528) + CU3SI_HT (x(Si) 0.23825) |
| CuSi-24Kro.tdb | 887 | CU15SI4_D86 (x(Si) 0.21053) + CU3SI_MT (x(Si) 0.23525) + CU3SI_HT (x(Si) 0.23822) |
| CuSi-24Kro.tdb | 831.57 | CU3SI_MT (x(Si) 0.24507) + CU3SI_HT (x(Si) 0.24858) + DIAMOND_A4 (x(Si) 1) |
| CuSi-24Kro.tdb | 831.57 | CU3SI_MT (x(Si) 0.2451) + CU3SI_HT (x(Si) 0.24862) + DIAMOND_A4 (x(Si) 1) |
| CuSi-24Kro.tdb | 829.03 | FCC_A1 (x(Si) 0.09218) + HCP_A3 (x(Si) 0.10482) + CU33SI7_A13 (x(Si) 0.17211) |
| CuSi-24Kro.tdb | 822.04 | CU15SI4_D86 (x(Si) 0.21053) + CU3SI_LT (x(Si) 0.23521) + CU3SI_MT (x(Si) 0.23524) |
| CuSi-24Kro.tdb | 742.37 | CU3SI_LT (x(Si) 0.24359) + CU3SI_MT (x(Si) 0.24492) + DIAMOND_A4 (x(Si) 1) |
| CuSi-24Kro.tdb | 742.37 | CU3SI_LT (x(Si) 0.2436) + CU3SI_MT (x(Si) 0.24493) + DIAMOND_A4 (x(Si) 1) |
| CuSi-98Jac.tdb | 1125.42 | FCC_A1 (x(Si) 0.11214) + BCC_A2 (x(Si) 0.14614) + LIQUID (x(Si) 0.15372) |
| CuSi-98Jac.tdb | 1115.92 | FCC_A1 (x(Si) 0.11348) + HCP_A3 (x(Si) 0.1184) + BCC_A2 (x(Si) 0.14708) |
| CuSi-98Jac.tdb | 1092.73 | BCC_A2 (x(Si) 0.16908) + CU33SI7 (x(Si) 0.175) + LIQUID (x(Si) 0.18591) |
| CuSi-98Jac.tdb | 1092.73 | BCC_A2 (x(Si) 0.16904) + CU33SI7 (x(Si) 0.175) + LIQUID (x(Si) 0.18586) |
| CuSi-98Jac.tdb | 1089.21 | CU33SI7 (x(Si) 0.175) + LIQUID (x(Si) 0.191) + CU19SI6 (x(Si) 0.24) |
| CuSi-98Jac.tdb | 1089.21 | CU33SI7 (x(Si) 0.175) + LIQUID (x(Si) 0.19113) + CU19SI6 (x(Si) 0.24) |
| CuSi-98Jac.tdb | 1077.95 | CU33SI7 (x(Si) 0.175) + CU4SI (x(Si) 0.2) + CU19SI6 (x(Si) 0.24) |
| CuSi-98Jac.tdb | 1073.66 | CU19SI6 (x(Si) 0.24) + LIQUID (x(Si) 0.30637) + DIAMOND_A4 (x(Si) 1) |
| CuSi-98Jac.tdb | 1073.66 | CU19SI6 (x(Si) 0.24) + LIQUID (x(Si) 0.3064) + DIAMOND_A4 (x(Si) 1) |
| CuSi-98Jac.tdb | 1058.63 | HCP_A3 (x(Si) 0.12547) + BCC_A2 (x(Si) 0.1542) + CU33SI7 (x(Si) 0.175) |
| CuSi-98Jac.tdb | 1058.63 | HCP_A3 (x(Si) 0.12544) + BCC_A2 (x(Si) 0.15417) + CU33SI7 (x(Si) 0.175) |
| CuSi-98Jac.tdb | 1008.37 | HCP_A3 (x(Si) 0.12162) + CU56SI11_A13 (x(Si) 0.16418) + CU33SI7 (x(Si) 0.175) |
| CuSi-98Jac.tdb | 1008.37 | HCP_A3 (x(Si) 0.12164) + CU56SI11_A13 (x(Si) 0.16418) + CU33SI7 (x(Si) 0.175) |
| CuSi-98Jac.tdb | 955.61 | CU56SI11_A13 (x(Si) 0.16418) + CU33SI7 (x(Si) 0.175) + CU4SI (x(Si) 0.2) |
| CuSi-98Jac.tdb | 825.59 | FCC_A1 (x(Si) 0.09304) + HCP_A3 (x(Si) 0.1057) + CU56SI11_A13 (x(Si) 0.16418) |
| CuSi-98Jac.tdb | 825.59 | FCC_A1 (x(Si) 0.09305) + HCP_A3 (x(Si) 0.10571) + CU56SI11_A13 (x(Si) 0.16418) |
| CuSi-98Jac.tdb | 696.51 | CU56SI11_A13 (x(Si) 0.16418) + CU4SI (x(Si) 0.2) + CU19SI6 (x(Si) 0.24) |
| CuSi-98Jac.tdb | 667.8 | FCC_A1 (x(Si) 0.07209) + CU56SI11_A13 (x(Si) 0.16418) + CU19SI6 (x(Si) 0.24) |
| CuSi-98Jac.tdb | 667.8 | FCC_A1 (x(Si) 0.07202) + CU56SI11_A13 (x(Si) 0.16418) + CU19SI6 (x(Si) 0.24) |
| CuSi-98Jac.tdb | 330.86 | FCC_A1 (x(Si) 0.02172) + CU19SI6 (x(Si) 0.24) + DIAMOND_A4 (x(Si) 1) |
| CuSi-98Jac.tdb | 330.86 | FCC_A1 (x(Si) 0.02168) + CU19SI6 (x(Si) 0.24) + DIAMOND_A4 (x(Si) 1) |
| CuSi-98Jac.tdb | 330.86 | FCC_A1 (x(Si) 0.02164) + CU19SI6 (x(Si) 0.24) + DIAMOND_A4 (x(Si) 1) |
| CuSi-99Fri-LB.tdb | 1122.49 | FCC_A1 (x(Si) 0.11189) + BCC_A2 (x(Si) 0.14271) + LIQUID (x(Si) 0.15877) |
| CuSi-99Fri-LB.tdb | 1115.69 | FCC_A1 (x(Si) 0.11226) + HCP_A3 (x(Si) 0.13032) + BCC_A2 (x(Si) 0.14356) |
| CuSi-99Fri-LB.tdb | 1097.01 | BCC_A2 (x(Si) 0.16428) + CU9SI2 (x(Si) 0.18182) + LIQUID (x(Si) 0.18756) |
| CuSi-99Fri-LB.tdb | 1096.41 | CU9SI2 (x(Si) 0.18182) + LIQUID (x(Si) 0.19016) + CU19SI6 (x(Si) 0.24) |
| CuSi-99Fri-LB.tdb | 1096.41 | CU9SI2 (x(Si) 0.18182) + LIQUID (x(Si) 0.19033) + CU19SI6 (x(Si) 0.24) |
| CuSi-99Fri-LB.tdb | 1074.8 | CU19SI6 (x(Si) 0.24) + LIQUID (x(Si) 0.31696) + DIAMOND_A4 (x(Si) 1) |
| CuSi-99Fri-LB.tdb | 1074.8 | CU19SI6 (x(Si) 0.24) + LIQUID (x(Si) 0.31699) + DIAMOND_A4 (x(Si) 1) |
| CuSi-99Fri-LB.tdb | 1069.19 | CU9SI2 (x(Si) 0.18182) + CU15SI4 (x(Si) 0.21053) + CU19SI6 (x(Si) 0.24) |
| CuSi-99Fri-LB.tdb | 1059.34 | HCP_A3 (x(Si) 0.14132) + BCC_A2 (x(Si) 0.15741) + CU9SI2 (x(Si) 0.18182) |
| CuSi-99Fri-LB.tdb | 1059.34 | HCP_A3 (x(Si) 0.14128) + BCC_A2 (x(Si) 0.15736) + CU9SI2 (x(Si) 0.18182) |
| CuSi-99Fri-LB.tdb | 999.16 | HCP_A3 (x(Si) 0.13522) + CU33SI7_A13 (x(Si) 0.175) + CU9SI2 (x(Si) 0.18182) |
| CuSi-99Fri-LB.tdb | 999.16 | HCP_A3 (x(Si) 0.13522) + CU33SI7_A13 (x(Si) 0.175) + CU9SI2 (x(Si) 0.18182) |
| CuSi-99Fri-LB.tdb | 999.16 | HCP_A3 (x(Si) 0.1352) + CU33SI7_A13 (x(Si) 0.175) + CU9SI2 (x(Si) 0.18182) |
| CuSi-99Fri-LB.tdb | 981.56 | CU33SI7_A13 (x(Si) 0.175) + CU9SI2 (x(Si) 0.18182) + CU15SI4 (x(Si) 0.21053) |
| CuSi-99Fri-LB.tdb | 824.84 | FCC_A1 (x(Si) 0.09417) + HCP_A3 (x(Si) 0.11359) + CU33SI7_A13 (x(Si) 0.175) |
| CuSi-99Fri-alt.tdb | 1124.91 | FCC_A1 (x(Si) 0.11105) + BCC_A2 (x(Si) 0.13964) + LIQUID (x(Si) 0.15759) |
| CuSi-99Fri-alt.tdb | 1115 | FCC_A1 (x(Si) 0.11148) + HCP_A3 (x(Si) 0.12269) + BCC_A2 (x(Si) 0.14011) |
| CuSi-99Fri-alt.tdb | 1095.38 | BCC_A2 (x(Si) 0.15781) + CU9SI2 (x(Si) 0.18182) + LIQUID (x(Si) 0.18561) |
| CuSi-99Fri-alt.tdb | 1094.76 | CU9SI2 (x(Si) 0.18182) + LIQUID (x(Si) 0.18912) + CU19SI6 (x(Si) 0.24) |
| CuSi-99Fri-alt.tdb | 1094.76 | CU9SI2 (x(Si) 0.18182) + LIQUID (x(Si) 0.18926) + CU19SI6 (x(Si) 0.24) |
| CuSi-99Fri-alt.tdb | 1074.8 | CU19SI6 (x(Si) 0.24) + LIQUID (x(Si) 0.31696) + DIAMOND_A4 (x(Si) 1) |
| CuSi-99Fri-alt.tdb | 1074.8 | CU19SI6 (x(Si) 0.24) + LIQUID (x(Si) 0.31699) + DIAMOND_A4 (x(Si) 1) |
| CuSi-99Fri-alt.tdb | 1073.54 | CU9SI2 (x(Si) 0.18182) + CU15SI4 (x(Si) 0.21053) + CU19SI6 (x(Si) 0.24) |
| CuSi-99Fri-alt.tdb | 1058.1 | HCP_A3 (x(Si) 0.13533) + BCC_A2 (x(Si) 0.14939) + CU9SI2 (x(Si) 0.18182) |
| CuSi-99Fri-alt.tdb | 1058.1 | HCP_A3 (x(Si) 0.13526) + BCC_A2 (x(Si) 0.14933) + CU9SI2 (x(Si) 0.18182) |
| CuSi-99Fri-alt.tdb | 1002.26 | HCP_A3 (x(Si) 0.13303) + CU33SI7_A13 (x(Si) 0.175) + CU9SI2 (x(Si) 0.18182) |
| CuSi-99Fri-alt.tdb | 1002.26 | HCP_A3 (x(Si) 0.13305) + CU33SI7_A13 (x(Si) 0.175) + CU9SI2 (x(Si) 0.18182) |
| CuSi-99Fri-alt.tdb | 1002.26 | HCP_A3 (x(Si) 0.13302) + CU33SI7_A13 (x(Si) 0.175) + CU9SI2 (x(Si) 0.18182) |
| CuSi-99Fri-alt.tdb | 982.69 | CU33SI7_A13 (x(Si) 0.175) + CU9SI2 (x(Si) 0.18182) + CU15SI4 (x(Si) 0.21053) |
| CuSi-99Fri-alt.tdb | 825.01 | FCC_A1 (x(Si) 0.09419) + HCP_A3 (x(Si) 0.118) + CU33SI7_A13 (x(Si) 0.175) |

Convex hulls: [Materials Project DFT hull](https://data.orchid-project.org/hulls/dft-mp/CU/CU-SI.json) · [OQMD DFT hull](https://data.orchid-project.org/hulls/dft-oqmd/CU/CU-SI.json) · [CALPHAD hull CuSi-00Yan](https://data.orchid-project.org/hulls/calphad-sgte/CU/CU-SI--CuSi-00Yan.json) · [CALPHAD hull CuSi-08Shi](https://data.orchid-project.org/hulls/calphad-sgte/CU/CU-SI--CuSi-08Shi.json) · [CALPHAD hull CuSi-13Gie](https://data.orchid-project.org/hulls/calphad-sgte/CU/CU-SI--CuSi-13Gie.json) · [CALPHAD hull CuSi-16Hal](https://data.orchid-project.org/hulls/calphad-sgte/CU/CU-SI--CuSi-16Hal.json) · [CALPHAD hull CuSi-19Sol](https://data.orchid-project.org/hulls/calphad-sgte/CU/CU-SI--CuSi-19Sol.json) · [CALPHAD hull CuSi-98Jac](https://data.orchid-project.org/hulls/calphad-sgte/CU/CU-SI--CuSi-98Jac.json) · [CALPHAD hull CuSi-99Fri-LB](https://data.orchid-project.org/hulls/calphad-sgte/CU/CU-SI--CuSi-99Fri-LB.json) · [CALPHAD hull CuSi-99Fri-alt](https://data.orchid-project.org/hulls/calphad-sgte/CU/CU-SI--CuSi-99Fri-alt.json)

## Invariant reactions (literature)

Table: Invariant reactions reported in the literature for the Cu–Si system (130)

| T (K) | Reaction / phases | Compositions (mole fraction) | Class | Source | Location | Quote |
|---:|---|---|---|---|---|---|
| 1129.45 | congruent melting: L -> η\_Cu3Si | L: Si 0.24; η\_Cu3Si: Si 0.24 | model | [1] Kroupa 2024; _cites Hallstedt 2016_ [doi](https://doi.org/10.1016/j.calphad.2016.03.002) | Table 2, p. 6, row 1; `ORC-XWW2PZUPKD` |  |
| 1127 | L + FCC_A1(Cu) = β | L: Si 0.16; FCC_A1(Cu): Si 0.11; β: Si 0.146 | experimental | [2] Gierlotka 2013; _cites Sufryd 2011_ [doi](https://doi.org/10.1016/j.intermet.2011.05.017) | Table 4, p. 5, row 57; `ORC-OFFVRTUKVQ` |  |
| 1126.15 | peritectic: L+(Cu) -> β | L: Si 0.157; (Cu): Si 0.111; β: Si 0.146 | model | [3] Yan 2000 | Table 1, p. 3, row 28; `ORC-4Z5U3RFV46` |  |
| 1126 | L + FCC_A1(Cu) = β | L: Si 0.157; FCC_A1(Cu): Si 0.111; β: Si 0.146 | experimental | [2] Gierlotka 2013; _cites Xinyan 2013_ | Table 4, p. 5, row 54; `ORC-KTL2RQXNHD` |  |
| 1125.85 | congruent melting: L -> η\_Cu3Si | L: Si 0.241; η\_Cu3Si: Si 0.241 | model | [1] Kroupa 2024 | Table 2, p. 6, row 2; `ORC-S6F63QSKPO` |  |
| 1125.15 | peritectic: L+(Cu) -> β | L: Si 0.16; (Cu): Si 0.1115; β: Si 0.142 | experimental | [3] Yan 2000; _cites Smith 1940_ | Table 1, p. 3, row 29; `ORC-UFL4XDBQ3W` |  |
| 1125.15 | peritectic: L+(Cu) -> β | L: Si 0.154; (Cu): Si 0.112; β: Si 0.146 | experimental | [3] Yan 2000; _cites Buhler 1998_ | Table 1, p. 3, row 30; `ORC-WLOAS5OR5C` |  |
| 1125 | L + FCC_A1(Cu) = β | L: Si 0.154; FCC_A1(Cu): Si 0.112; β: Si 0.146 | unspecified | [2] Gierlotka 2013; _cites Buhler 1998_ | Table 4, p. 5, row 56; `ORC-55ZEPSTVI7` |  |
| 1125 | L + FCC_A1(Cu) = β | L: Si 0.16; FCC_A1(Cu): Si 0.112; β: Si 0.142 | experimental | [2] Gierlotka 2013; _cites Smith 1940_ | Table 4, p. 5, row 55; `ORC-W2FHRY6QOH` |  |
| 1124 | L + FCC_A1(Cu) = β | L: Si 0.16; FCC_A1(Cu): Si 0.11; β: Si 0.138 | model | [2] Gierlotka 2013 | Table 4, p. 5, row 53; `ORC-B3FEUAIAII` |  |
| 1122.75 | peritectic: (Cu) + L -> β(CuSi) | (Cu): Si 0.116; L: Si 0.161; β(CuSi): Si 0.143 | model | [1] Kroupa 2024; _cites Hallstedt 2016_ [doi](https://doi.org/10.1016/j.calphad.2016.03.002) | Table 2, p. 6, row 4; `ORC-DJVPDBZLTL` |  |
| 1122.15 | peritectic: (Cu) + L -> β(CuSi) | L: Si 0.16; β(CuSi): Si 0.142 | experimental | [1] Kroupa 2024; _cites Sufryd 2011_ [doi](https://doi.org/10.1016/j.intermet.2011.05.017) | Table 2, p. 6, row 3; `ORC-CY3HAK6FIQ` |  |
| 1121.75 | peritectic: (Cu) + L -> β(CuSi) | (Cu): Si 0.115; L: Si 0.16; β(CuSi): Si 0.142 | model | [1] Kroupa 2024 | Table 2, p. 6, row 5; `ORC-FQFNWN62BQ` |  |
| 1119.15 | peritectoid: β+(Cu) -> κ | β: Si 0.147; (Cu): Si 0.113; κ: Si 0.118 | experimental | [3] Yan 2000; _cites Buhler 1998_ | Table 1, p. 3, row 27; `ORC-W5I2ZVOKVF` |  |
| 1119 | β + FCC_A1(Cu) = κ | β: Si 0.147; FCC_A1(Cu): Si 0.113; κ: Si 0.118 | unspecified | [2] Gierlotka 2013; _cites Buhler 1998_ | Table 4, p. 5, row 51; `ORC-EGVEUUCECY` |  |
| 1115.15 | peritectoid: β+(Cu) -> κ | β: Si 0.147; (Cu): Si 0.112; κ: Si 0.13 | model | [3] Yan 2000 | Table 1, p. 3, row 25; `ORC-A7TC3QDFXG` |  |
| 1115.15 | peritectoid: β+(Cu) -> κ | β: Si 0.144; (Cu): Si 0.1125; κ: Si 0.1245 | experimental | [3] Yan 2000; _cites Smith 1940_ | Table 1, p. 3, row 26; `ORC-RLNIL6B3KC` |  |
| 1115 | β + FCC_A1(Cu) = κ | β: Si 0.147; FCC_A1(Cu): Si 0.112; κ: Si 0.13 | experimental | [2] Gierlotka 2013; _cites Xinyan 2013_ | Table 4, p. 5, row 49; `ORC-3OC6LV65XW` |  |
| 1115 | β + FCC_A1(Cu) = κ | β: Si 0.14; FCC_A1(Cu): Si 0.114; κ: Si 0.125 | model | [2] Gierlotka 2013 | Table 4, p. 5, row 48; `ORC-HDWHYR7I5Y` |  |
| 1115 | β + FCC_A1(Cu) = κ | β: Si 0.144; FCC_A1(Cu): Si 0.113; κ: Si 0.125 | experimental | [2] Gierlotka 2013; _cites Smith 1940_ | Table 4, p. 5, row 50; `ORC-HUCI3AD43K` |  |
| 1114 | β + FCC_A1(Cu) = κ | β: Si 0.145; FCC_A1(Cu): Si 0.109; κ: Si 0.125 | experimental | [2] Gierlotka 2013; _cites Sufryd 2011_ [doi](https://doi.org/10.1016/j.intermet.2011.05.017) | Table 4, p. 5, row 52; `ORC-A7BTRVRPIM` |  |
| 1112.55 | peritectic: (Cu) + β(CuSi) -> κ(CuSi) | (Cu): Si 0.116; β(CuSi): Si 0.142; κ(CuSi): Si 0.128 | model | [1] Kroupa 2024 | Table 2, p. 6, row 8; `ORC-2ZH2657IEO` |  |
| 1112.25 | peritectic: (Cu) + β(CuSi) -> κ(CuSi) | (Cu): Si 0.116; β(CuSi): Si 0.143; κ(CuSi): Si 0.128 | model | [1] Kroupa 2024; _cites Hallstedt 2016_ [doi](https://doi.org/10.1016/j.calphad.2016.03.002) | Table 2, p. 6, row 7; `ORC-6AVCSNVX6N` |  |
| 1112.15 | peritectic: (Cu) + β(CuSi) -> κ(CuSi) | β(CuSi): Si 0.145; κ(CuSi): Si 0.125 | experimental | [1] Kroupa 2024; _cites Sufryd 2011_ [doi](https://doi.org/10.1016/j.intermet.2011.05.017) | Table 2, p. 6, row 6; `ORC-FHNJB36QZN` |  |
| 1098 | L + β = δ | L: Si 0.19; β: Si 0.165; δ: Si 0.176 | experimental | [2] Gierlotka 2013; _cites Sufryd 2011_ [doi](https://doi.org/10.1016/j.intermet.2011.05.017) | Table 4, p. 5, row 47; `ORC-ZKGIUDSUJW` |  |
| 1097.15 | peritectic: L+β -> δ | L: Si 0.181; β: Si 0.172; δ: Si 0.176 | experimental | [3] Yan 2000; _cites Smith 1940_ | Table 1, p. 3, row 23; `ORC-66Y3VENTQW` |  |
| 1097.15 | peritectic: L+β -> δ | L: Si 0.187; β: Si 0.167; δ: Si 0.175 | model | [3] Yan 2000 | Table 1, p. 3, row 22; `ORC-XYMWTQCAUU` |  |
| 1097 | L + β = δ | L: Si 0.187; β: Si 0.167; δ: Si 0.175 | experimental | [2] Gierlotka 2013; _cites Xinyan 2013_ | Table 4, p. 5, row 44; `ORC-F62AK3PPEQ` |  |
| 1097 | L + β = δ | L: Si 0.181; β: Si 0.172; δ: Si 0.176 | experimental | [2] Gierlotka 2013; _cites Smith 1940_ | Table 4, p. 5, row 45; `ORC-GJ4I3OWHLV` |  |
| 1095 | L + β = δ | L: Si 0.188; β: Si 0.17; δ: Si 0.175 | model | [2] Gierlotka 2013 | Table 4, p. 5, row 43; `ORC-6XM624UXIZ` |  |
| 1095 | L = η + δ | L: Si 0.199; η: Si 0.23; δ: Si 0.176 | experimental | [2] Gierlotka 2013; _cites Sufryd 2011_ [doi](https://doi.org/10.1016/j.intermet.2011.05.017) | Table 4, p. 5, row 42; `ORC-WBL7SBLTGO` |  |
| 1094.15 | peritectic: β(CuSi) + L -> δ | β(CuSi): Si 0.165; L: Si 0.192; δ: Si 0.175 | experimental | [1] Kroupa 2024; _cites Sufryd 2011_ [doi](https://doi.org/10.1016/j.intermet.2011.05.017) | Table 2, p. 6, row 9; `ORC-ZJ3776FENC` |  |
| 1093.75 | peritectic: β(CuSi) + L -> δ | β(CuSi): Si 0.16; L: Si 0.185; δ: Si 0.175 | model | [1] Kroupa 2024; _cites Hallstedt 2016_ [doi](https://doi.org/10.1016/j.calphad.2016.03.002) | Table 2, p. 6, row 10; `ORC-WYB2FFPF6T` |  |
| 1093.15 | peritectic: L+β -> δ | L: Si 0.186; β: Si 0.169; δ: Si 0.175 | experimental | [3] Yan 2000; _cites Buhler 1998_ | Table 1, p. 3, row 24; `ORC-64BLRYXLGN` |  |
| 1093.15 | eutectic: L -> η+δ | L: Si 0.192; η: Si 0.24; δ: Si 0.175 | model | [3] Yan 2000 | Table 1, p. 3, row 19; `ORC-COOH5WX2CJ` |  |
| 1093.15 | eutectic: L -> η+δ | L: Si 0.199; η: Si 0.234; δ: Si 0.196 | experimental | [3] Yan 2000; _cites Smith 1929_ | Table 1, p. 3, row 20; `ORC-UL7OUDF3RG` |  |
| 1093 | L = η + δ | L: Si 0.199; η: Si 0.234; δ: Si 0.196 | experimental | [2] Gierlotka 2013; _cites Smith 1940_ | Table 4, p. 5, row 40; `ORC-EX3KKJEQTL` |  |
| 1093 | L = η + δ | L: Si 0.202; η: Si 0.25; δ: Si 0.175 | model | [2] Gierlotka 2013 | Table 4, p. 5, row 38; `ORC-MDAQXCMAQB` |  |
| 1093 | L + β = δ | L: Si 0.186; β: Si 0.169; δ: Si 0.175 | unspecified | [2] Gierlotka 2013; _cites Buhler 1998_ | Table 4, p. 5, row 46; `ORC-QJ7246V7KT` |  |
| 1093 | L = η + δ | L: Si 0.192; η: Si 0.24; δ: Si 0.175 | experimental | [2] Gierlotka 2013; _cites Xinyan 2013_ | Table 4, p. 5, row 39; `ORC-ZCWI6YBUDV` |  |
| 1091.95 | peritectic: β(CuSi) + L -> δ | β(CuSi): Si 0.16; L: Si 0.186; δ: Si 0.178 | model | [1] Kroupa 2024 | Table 2, p. 6, row 11; `ORC-4MWGPOWBIQ` |  |
| 1091.85 | eutectic: L + δ -> η | L: Si 0.19; δ: Si 0.175; η: Si 0.24 | model | [1] Kroupa 2024; _cites Hallstedt 2016_ [doi](https://doi.org/10.1016/j.calphad.2016.03.002) | Table 2, p. 6, row 13; `ORC-ZPVWNQDN5N` |  |
| 1091.25 | eutectic: L + δ -> η | L: Si 0.188; δ: Si 0.18; η: Si 0.238 | model | [1] Kroupa 2024 | Table 2, p. 6, row 14; `ORC-5LY3PYNE5W` |  |
| 1091.15 | eutectic: L + δ -> η | L: Si 0.198; δ: Si 0.177; η: Si 0.232 | experimental | [1] Kroupa 2024; _cites Sufryd 2011_ [doi](https://doi.org/10.1016/j.intermet.2011.05.017) | Table 2, p. 6, row 12; `ORC-4Z4OE73X5F` |  |
| 1089.15 | eutectic: L -> η+δ | L: Si 0.191; η: Si 0.24; δ: Si 0.175 | experimental | [3] Yan 2000; _cites Buhler 1998_ | Table 1, p. 3, row 21; `ORC-I4HAK3E5T2` |  |
| 1089 | L = η + δ | L: Si 0.191; η: Si 0.24; δ: Si 0.175 | unspecified | [2] Gierlotka 2013; _cites Buhler 1998_ | Table 4, p. 5, row 41; `ORC-LZ5HAWDUT5` |  |
| 1085.85 | eutectic: L + η -> (Si) | L: Si 0.314; η: Si 0.25; (Si): Si 1 | model | [1] Kroupa 2024 | Table 2, p. 6, row 17; `ORC-4ROV26NCDZ` |  |
| 1080.15 | eutectic: L + η -> (Si) | η: Cu 0.75, Si 0.25 | experimental | [1] Kroupa 2024; _cites Sufryd 2011_ [doi](https://doi.org/10.1016/j.intermet.2011.05.017) | Table 2, p. 6, row 15; `ORC-GDJWHJU26S` |  |
| 1079.55 | eutectic: L + η -> (Si) | L: Si 0.312; η: Si 0.24; (Si): Si 1 | model | [1] Kroupa 2024; _cites Hallstedt 2016_ [doi](https://doi.org/10.1016/j.calphad.2016.03.002) | Table 2, p. 6, row 16; `ORC-3FNLZNSL5S` |  |
| 1079 | L = Diamond_A4(Si) + η | L: Si 0.3; Diamond_A4(Si): Si 1; η: Si 0.258 | experimental | [2] Gierlotka 2013; _cites Sufryd 2011_ [doi](https://doi.org/10.1016/j.intermet.2011.05.017) | Table 4, p. 5, row 37; `ORC-U3PDKPEEF3` |  |
| 1078.15 | peritectoid: η+δ -> ε | η: Si 0.24; δ: Si 0.175; ε: Si 0.2 | experimental | [3] Yan 2000; _cites Buhler 1998_ | Table 1, p. 3, row 15; `ORC-BMRGG6ZHZN` |  |
| 1078 | η + δ = ε | η: Si 0.24; δ: Si 0.175; ε: Si 0.2 | unspecified | [2] Gierlotka 2013; _cites Buhler 1998_ | Table 4, p. 5, row 31; `ORC-THUZWJX4WJ` |  |
| 1075.15 | eutectic: L -> (Si)+η | L: Si 0.301; (Si): Si 1; η: Si 0.249 | experimental | [3] Yan 2000; _cites Smith 1929_ | Table 1, p. 3, row 17; `ORC-EBEZXBUYKC` |  |
| 1075.15 | eutectic: L -> (Si)+η | L: Si 0.307; (Si): Si 1; η: Si 0.24 | model | [3] Yan 2000 | Table 1, p. 3, row 16; `ORC-IBQRRXL66Q` |  |
| 1075 | L = Diamond_A4(Si) + η | L: Si 0.307; Diamond_A4(Si): Si 1; η: Si 0.24 | experimental | [2] Gierlotka 2013; _cites Xinyan 2013_ | Table 4, p. 5, row 34; `ORC-FEOIDWXNA4` |  |
| 1075 | L = Diamond_A4(Si) + η | L: Si 0.301; Diamond_A4(Si): Si 1; η: Si 0.249 | experimental | [2] Gierlotka 2013; _cites Smith 1940_ | Table 4, p. 5, row 35; `ORC-G2G6PPIWWX` |  |
| 1074.15 | eutectic: L -> (Si)+η | L: Si 0.306; (Si): Si 1; η: Si 0.24 | experimental | [3] Yan 2000; _cites Buhler 1998_ | Table 1, p. 3, row 18; `ORC-C7CA6XGUFP` |  |
| 1074 | L = Diamond_A4(Si) + η | L: Si 0.32; Diamond_A4(Si): Si 1; η: Si 0.25 | model | [2] Gierlotka 2013 | Table 4, p. 5, row 33; `ORC-2XWQ3HEOFC` |  |
| 1074 | L = Diamond_A4(Si) + η | L: Si 0.306; Diamond_A4(Si): Si 1; η: Si 0.24 | unspecified | [2] Gierlotka 2013; _cites Buhler 1998_ | Table 4, p. 5, row 36; `ORC-7IGM6M4GSF` |  |
| 1073.15 | peritectoid: η+δ -> ε | η: Si 0.235; δ: Si 0.194; ε: Si 0.212 | experimental | [3] Yan 2000; _cites Iokibe 1931_ | Table 1, p. 3, row 14; `ORC-7UXBU5P57N` |  |
| 1073.15 | peritectoid: η+δ -> ε | η: Si 0.24; δ: Si 0.175; ε: Si 0.211 | model | [3] Yan 2000 | Table 1, p. 3, row 13; `ORC-NTY3JUTG6A` |  |
| 1073.15 | peritectoid: δ + η -> ε | δ: Si 0.185; η: Si 0.235; ε: Si 0.211 | experimental | [1] Kroupa 2024; _cites Sufryd 2011_ [doi](https://doi.org/10.1016/j.intermet.2011.05.017) | Table 2, p. 6, row 18; `ORC-SCO36FPZ5O` |  |
| 1073 | η + δ = ε | η: Si 0.235; δ: Si 0.194; ε: Si 0.212 | experimental | [2] Gierlotka 2013; _cites Iokibe 1931_ | Table 4, p. 5, row 30; `ORC-BPIKL3VG5J` |  |
| 1073 | η + δ = ε | η: Si 0.24; δ: Si 0.175; ε: Si 0.211 | experimental | [2] Gierlotka 2013; _cites Xinyan 2013_ | Table 4, p. 5, row 29; `ORC-DEU7DZJC6O` |  |
| 1073 | η + δ = ε | η: Si 0.233; δ: Si 0.184; ε: Si 0.21 | experimental | [2] Gierlotka 2013; _cites Sufryd 2011_ [doi](https://doi.org/10.1016/j.intermet.2011.05.017) | Table 4, p. 5, row 32; `ORC-IYI7ST6E6R` |  |
| 1072.35 | peritectoid: δ + η -> ε | δ: Si 0.175; η: Si 0.24; ε: Si 0.211 | model | [1] Kroupa 2024; _cites Hallstedt 2016_ [doi](https://doi.org/10.1016/j.calphad.2016.03.002) | Table 2, p. 6, row 19; `ORC-5ZRXA57I3Y` |  |
| 1072.05 | peritectoid: δ + η -> ε | δ: Si 0.179; η: Si 0.238; ε: Si 0.211 | model | [1] Kroupa 2024 | Table 2, p. 6, row 20; `ORC-WUPD7SM7NP` |  |
| 1071 | η + δ = ε | η: Si 0.25; δ: Si 0.175; ε: Si 0.21 | model | [2] Gierlotka 2013 | Table 4, p. 5, row 28; `ORC-FO3NOCMJJ6` |  |
| 1062 | β = δ + κ | β: Si 0.153; δ: Si 0.175; κ: Si 0.138 | model | [2] Gierlotka 2013 | Table 4, p. 5, row 23; `ORC-WCDN2IM7L4` |  |
| 1060.15 | eutectoid: β -> δ+κ | β: Si 0.157; δ: Si 0.175; κ: Si 0.142 | model | [3] Yan 2000 | Table 1, p. 3, row 10; `ORC-IEWZKSORAI` |  |
| 1060 | β = δ + κ | β: Si 0.157; δ: Si 0.175; κ: Si 0.142 | model | [2] Gierlotka 2013; _cites Xinyan 2013_ | Table 4, p. 5, row 24; `ORC-YBEIJWHPW4` |  |
| 1059.15 | eutectoid: β -> δ+κ | β: Si 0.154; δ: Si 0.175; κ: Si 0.125 | experimental | [3] Yan 2000; _cites Buhler 1998_ | Table 1, p. 3, row 12; `ORC-AURNPJIIBS` |  |
| 1059 | β = δ + κ | β: Si 0.154; δ: Si 0.175; κ: Si 0.125 | model | [2] Gierlotka 2013; _cites Buhler 1998_ | Table 4, p. 5, row 26; `ORC-U7CJILWQHK` |  |
| 1058.15 | eutectoid: β -> δ+κ | β: Si 0.16; δ: Si 0.176; κ: Si 0.143 | experimental | [3] Yan 2000; _cites Smith 1940_ | Table 1, p. 3, row 11; `ORC-SNXIO5ETLD` |  |
| 1058 | β = δ + κ | β: Si 0.16; δ: Si 0.176; κ: Si 0.143 | experimental | [2] Gierlotka 2013; _cites Smith 1940_ | Table 4, p. 5, row 25; `ORC-SUUO3BTZCF` |  |
| 1055.15 | eutectoid: β(CuSi) -> δ + κ | β(CuSi): Si 0.15; δ: Si 0.175; κ: Si 0.136 | model | [1] Kroupa 2024; _cites Hallstedt 2016_ [doi](https://doi.org/10.1016/j.calphad.2016.03.002) | Table 2, p. 6, row 22; `ORC-CX6E7BTWZB` |  |
| 1054.15 | eutectoid: β(CuSi) -> δ + κ | β(CuSi): Si 0.162; δ: Si 0.17; κ: Si 0.142 | experimental | [1] Kroupa 2024; _cites Sufryd 2011_ [doi](https://doi.org/10.1016/j.intermet.2011.05.017) | Table 2, p. 6, row 21; `ORC-OYSMCQJ6TG` |  |
| 1054 | β = δ + κ | β: Si 0.16; δ: Si 0.173; κ: Si 0.14 | experimental | [2] Gierlotka 2013; _cites Sufryd 2011_ [doi](https://doi.org/10.1016/j.intermet.2011.05.017) | Table 4, p. 5, row 27; `ORC-JW32VFDSNQ` |  |
| 1053.85 | eutectoid: β(CuSi) -> δ + κ | β(CuSi): Si 0.15; δ: Si 0.173; κ: Si 0.135 | model | [1] Kroupa 2024 | Table 2, p. 6, row 23; `ORC-OV25HVAAK3` |  |
| 1008.15 | δ -> ε + γ | δ: Si 0.179; ε: Si 0.211; γ: Si 0.178 | experimental | [1] Kroupa 2024; _cites Sufryd 2011_ [doi](https://doi.org/10.1016/j.intermet.2011.05.017) | Table 2, p. 6, row 25; `ORC-55GXGDRP4P` |  |
| 1008.15 | peritectoid: δ+κ -> γ | δ: Si 0.175; κ: Si 0.121; γ: Si 0.164 | experimental | [3] Yan 2000; _cites Buhler 1998_ | Table 1, p. 3, row 9; `ORC-CK6HJUCKC3` |  |
| 1008 | δ = κ + γ | δ: Si 0.175; κ: Si 0.121; γ: Si 0.164 | unspecified | [2] Gierlotka 2013; _cites Buhler 1998_ | Table 4, p. 5, row 21; `ORC-LSVYSOLJL3` |  |
| 1008 | δ = κ + γ | δ: Si 0.169; κ: Si 0.137; γ: Si 0.175 | experimental | [2] Gierlotka 2013; _cites Sufryd 2011_ [doi](https://doi.org/10.1016/j.intermet.2011.05.017) | Table 4, p. 5, row 22; `ORC-SDAOZD2SOS.4f4faf` |  |
| 1008 | δ = ε + γ | δ: Si 0.179; ε: Si 0.21; γ: Si 0.174 | experimental | [2] Gierlotka 2013; _cites Sufryd 2011_ [doi](https://doi.org/10.1016/j.intermet.2011.05.017) | Table 4, p. 5, row 17; `ORC-SDAOZD2SOS.ae1547` |  |
| 1007.35 | polymorphic: δ -> γ | δ: Si 0.175; γ: Si 0.175 | model | [1] Kroupa 2024; _cites Hallstedt 2016_ [doi](https://doi.org/10.1016/j.calphad.2016.03.002) | Table 2, p. 6, row 26; `ORC-U5W3KXR2AI` |  |
| 1007.15 | eutectoid: δ -> γ + κ | δ: Si 0.169; γ: Si 0.175; κ: Si 0.132 | experimental | [1] Kroupa 2024; _cites Sufryd 2011_ [doi](https://doi.org/10.1016/j.intermet.2011.05.017) | Table 2, p. 6, row 27; `ORC-GBVOBHCVKC` |  |
| 1006.95 | peritectoid: δ + ε -> κ | δ: Si 0.174; ε: Si 0.211; κ: Si 0.176 | model | [1] Kroupa 2024 | Table 2, p. 6, row 24; `ORC-SYQQ3XCRQV` |  |
| 1005.05 | eutectoid: δ -> γ + κ | δ: Si 0.172; γ: Si 0.175; κ: Si 0.131 | model | [1] Kroupa 2024 | Table 2, p. 6, row 28; `ORC-C4NEKBLPK4` |  |
| 1005 | δ = κ + γ | δ: Si 0.175; κ: Si 0.133; γ: Si 0.175 | model | [2] Gierlotka 2013 | Table 4, p. 5, row 18; `ORC-UZOUUBJQTQ.04df4c` |  |
| 1005 | δ = ε + γ | δ: Si 0.175; ε: Si 0.21; γ: Si 0.175 | model | [2] Gierlotka 2013 | Table 4, p. 5, row 13; `ORC-UZOUUBJQTQ.df7984` |  |
| 1002.15 | peritectoid: δ+κ -> γ | δ: Si 0.175; κ: Si 0.139; γ: Si 0.164 | model | [3] Yan 2000 | Table 1, p. 3, row 7; `ORC-3GYGXKP7T6` |  |
| 1002.15 | peritectoid: δ+κ -> γ | δ: Si 0.1765; κ: Si 0.145; γ: Si 0.171 | experimental | [3] Yan 2000; _cites Smith 1940_ | Table 1, p. 3, row 8; `ORC-D3X2AYBQKK` |  |
| 1002 | δ = κ + γ | δ: Si 0.176; κ: Si 0.145; γ: Si 0.171 | experimental | [2] Gierlotka 2013; _cites Smith 1940_ | Table 4, p. 5, row 20; `ORC-HMDLDYZM7E` |  |
| 1002 | δ = κ + γ | δ: Si 0.175; κ: Si 0.139; γ: Si 0.164 | experimental | [2] Gierlotka 2013; _cites Xinyan 2013_ | Table 4, p. 5, row 19; `ORC-UTKAFGEM7F` |  |
| 984.15 | eutectoid: δ -> ε+γ | δ: Si 0.175; ε: Si 0.21; γ: Si 0.164 | model | [3] Yan 2000 | Table 1, p. 3, row 4; `ORC-7MBTALCNUQ` |  |
| 984 | δ = ε + γ | δ: Si 0.175; ε: Si 0.21; γ: Si 0.164 | experimental | [2] Gierlotka 2013; _cites Xinyan 2013_ | Table 4, p. 5, row 14; `ORC-LOYWGLOHGQ` |  |
| 983.15 | eutectoid: δ -> ε+γ | δ: Si 0.182; ε: Si 0.212; γ: Si 0.176 | experimental | [3] Yan 2000; _cites Smith 1929_ | Table 1, p. 3, row 5; `ORC-MASOC5YGGW` |  |
| 983 | δ = ε + γ | δ: Si 0.182; ε: Si 0.212; γ: Si 0.176 | experimental | [2] Gierlotka 2013; _cites Smith 1929_ | Table 4, p. 5, row 15; `ORC-EDYZUZFPTO` |  |
| 956.15 | eutectoid: δ -> ε+γ | δ: Si 0.175; ε: Si 0.2; γ: Si 0.164 | experimental | [3] Yan 2000; _cites Buhler 1998_ | Table 1, p. 3, row 6; `ORC-T6PHYCYZO4` |  |
| 956 | δ = ε + γ | δ: Si 0.175; ε: Si 0.2; γ: Si 0.164 | unspecified | [2] Gierlotka 2013; _cites Buhler 1998_ | Table 4, p. 5, row 16; `ORC-V6J5PM5CDL` |  |
| 892 | ε + η = η′ | ε: Si 0.21; η: Si 0.242; η′: Si 0.241 | experimental | [2] Gierlotka 2013; _cites Sufryd 2011_ [doi](https://doi.org/10.1016/j.intermet.2011.05.017) | Table 4, p. 5, row 12; `ORC-4YJSW3NTYP` |  |
| 892 | ε + η = η′ | ε: Si 0.21; η: Si 0.243; η′: Si 0.242 | model | [2] Gierlotka 2013 | Table 4, p. 5, row 11; `ORC-LZMDTLZVDI` |  |
| 891.15 | peritectoid: ε + η -> η′ | ε: Si 0.211; η: Si 0.242 | experimental | [1] Kroupa 2024; _cites Sufryd 2011_ [doi](https://doi.org/10.1016/j.intermet.2011.05.017) | Table 2, p. 6, row 29; `ORC-GI3ICFUEXH` |  |
| 888.15 | peritectoid: ε + η -> η′ | ε: Si 0.211; η: Si 0.24; η′: Si 0.235; η': Si 0.235 | model | [1] Kroupa 2024; _cites Hallstedt 2016_ [doi](https://doi.org/10.1016/j.calphad.2016.03.002) | Table 2, p. 6, row 30; `ORC-FKL774A755` |  |
| 886.95 | peritectoid: ε + η -> η′ | ε: Si 0.211; η: Si 0.239 | model | [1] Kroupa 2024 | Table 2, p. 6, row 31; `ORC-XOOPUGWKAX` |  |
| 843.15 | peritectoid: ε + η′ -> η″ | ε: Si 0.211; η′: Si 0.244 | experimental | [1] Kroupa 2024; _cites Sufryd 2011_ [doi](https://doi.org/10.1016/j.intermet.2011.05.017) | Table 2, p. 6, row 35; `ORC-QB7RLDHCKN` |  |
| 842 | ε + η′ = η″ | ε: Si 0.21; η′: Si 0.243; η″: Si 0.242 | model | [2] Gierlotka 2013 | Table 4, p. 5, row 10; `ORC-V3BQD4MQMM` |  |
| 831.55 | eutectoid: η -> η′ + (Si) | η: Si 0.249; (Si): Si 1 | model | [1] Kroupa 2024 | Table 2, p. 6, row 34; `ORC-WDOX2NTGZK` |  |
| 831.05 | eutectoid: η -> η′ + (Si) | η: Si 0.24; η′: Si 0.235; (Si): Si 1; η': Si 0.235 | model | [1] Kroupa 2024; _cites Hallstedt 2016_ [doi](https://doi.org/10.1016/j.calphad.2016.03.002) | Table 2, p. 6, row 33; `ORC-7GWXXLAKZW` |  |
| 830 | Diamond_A4(Si) + η = η′ | Diamond_A4(Si): Si 1; η: Si 0.26; η′: Si 0.26 | experimental | [2] Gierlotka 2013; _cites Sufryd 2011_ [doi](https://doi.org/10.1016/j.intermet.2011.05.017) | Table 4, p. 5, row 9; `ORC-E2VSDZJYXB` |  |
| 829.05 | eutectoid: κ -> γ + (Cu) | κ: Si 0.105; γ: Si 0.172; (Cu): Si 0.093 | model | [1] Kroupa 2024 | Table 2, p. 6, row 40; `ORC-GYYGVB2XPU` |  |
| 828.15 | eutectoid: η -> η′ + (Si) | η: Si 0.26; (Si): Si 1 | experimental | [1] Kroupa 2024; _cites Sufryd 2011_ [doi](https://doi.org/10.1016/j.intermet.2011.05.017) | Table 2, p. 6, row 32; `ORC-SJKEAQ2D2L` |  |
| 828 | Diamond_A4(Si) + η = η′ | Diamond_A4(Si): Si 1; η: Si 0.259; η′: Si 0.258 | model | [2] Gierlotka 2013 | Table 4, p. 5, row 8; `ORC-CV6CNENHWC` |  |
| 825.45 | eutectoid: κ -> γ + (Cu) | κ: Si 0.108; γ: Si 0.175; (Cu): Si 0.095 | model | [1] Kroupa 2024; _cites Hallstedt 2016_ [doi](https://doi.org/10.1016/j.calphad.2016.03.002) | Table 2, p. 6, row 39; `ORC-CC6Y6VBK75` |  |
| 825.15 | eutectoid: κ -> (Cu)+γ | κ: Si 0.105; (Cu): Si 0.093; γ: Si 0.164 | experimental | [3] Yan 2000; _cites Buhler 1998_ | Table 1, p. 3, row 3; `ORC-2JXA32SNQJ` |  |
| 825.15 | eutectoid: κ -> (Cu)+γ | κ: Si 0.1105; (Cu): Si 0.0995; γ: Si 0.1715 | experimental | [3] Yan 2000; _cites Smith 1940_ | Table 1, p. 3, row 2; `ORC-2YD5UGTVYC` |  |
| 825.15 | eutectoid: κ -> (Cu)+γ | κ: Si 0.115; (Cu): Si 0.097; γ: Si 0.164 | model | [3] Yan 2000 | Table 1, p. 3, row 1; `ORC-LN6LLUXPZC` |  |
| 825.15 | eutectoid: κ -> γ + (Cu) | γ: Cu 0.825, Si 0.175 | experimental | [1] Kroupa 2024; _cites Sufryd 2011_ [doi](https://doi.org/10.1016/j.intermet.2011.05.017) | Table 2, p. 6, row 38; `ORC-RBZP7M3LS5` |  |
| 825 | κ = FCC_A1(Cu) + γ | κ: Si 0.115; FCC_A1(Cu): Si 0.097; γ: Si 0.164 | experimental | [2] Gierlotka 2013; _cites Xinyan 2013_ | Table 4, p. 5, row 4; `ORC-74LQXZ7Q2T` |  |
| 825 | κ = FCC_A1(Cu) + γ | κ: Si 0.115; FCC_A1(Cu): Si 0.096; γ: Si 0.169 | experimental | [2] Gierlotka 2013; _cites Sufryd 2011_ [doi](https://doi.org/10.1016/j.intermet.2011.05.017) | Table 4, p. 5, row 7; `ORC-ORTYFH5S6A` |  |
| 825 | κ = FCC_A1(Cu) + γ | κ: Si 0.11; FCC_A1(Cu): Si 0.099; γ: Si 0.175 | experimental | [2] Gierlotka 2013; _cites Smith 1940_ | Table 4, p. 5, row 5; `ORC-T3UHBEVC3X` |  |
| 825 | κ = FCC_A1(Cu) + γ | κ: Si 0.105; FCC_A1(Cu): Si 0.093; γ: Si 0.164 | unspecified | [2] Gierlotka 2013; _cites Buhler 1998_ | Table 4, p. 5, row 6; `ORC-XTRPICF6BE` |  |
| 825 | κ = FCC_A1(Cu) + γ | κ: Si 0.115; FCC_A1(Cu): Si 0.092; γ: Si 0.175 | model | [2] Gierlotka 2013 | Table 4, p. 5, row 3; `ORC-YGC44NTD56` |  |
| 822.25 | peritectoid: ε + η′ -> η″ | ε: Si 0.211; η′: Si 0.235 | model | [1] Kroupa 2024; _cites Hallstedt 2016_ [doi](https://doi.org/10.1016/j.calphad.2016.03.002) | Table 2, p. 6, row 36; `ORC-65PF7IKY6D` |  |
| 822.05 | peritectoid: ε + η′ -> η″ | ε: Si 0.211; η′: Si 0.236 | model | [1] Kroupa 2024 | Table 2, p. 6, row 37; `ORC-TGYWDN3CJF` |  |
| 749.45 | eutectoid: η′ -> η″ + (Si) | η′: Si 0.235; (Si): Si 1 | model | [1] Kroupa 2024; _cites Hallstedt 2016_ [doi](https://doi.org/10.1016/j.calphad.2016.03.002) | Table 2, p. 6, row 42; `ORC-QJTUO7LGQB` |  |
| 742.35 | eutectoid: η′ -> η″ + (Si) | η′: Si 0.245; (Si): Si 1 | model | [1] Kroupa 2024 | Table 2, p. 6, row 43; `ORC-5TU6LTGQID` |  |
| 740.15 | eutectoid: η′ -> η″ + (Si) | η′: Cu 0.75, Si 0.25; η″: Cu 0.75, Si 0.25 | experimental | [1] Kroupa 2024; _cites Sufryd 2011_ [doi](https://doi.org/10.1016/j.intermet.2011.05.017) | Table 2, p. 6, row 41; `ORC-XNYMHAZDTQ` |  |
| 740 | Diamond_A4(Si) + η′ = η″ | Diamond_A4(Si): Si 1; η′: Si 0.258; η″: Si 0.257 | model | [2] Gierlotka 2013 | Table 4, p. 5, row 1; `ORC-P4LEDAV5XW` |  |
| 740 | Diamond_A4(Si) + η′ = η″ | Diamond_A4(Si): Si 1; η′: Si 0.235; η″: Si 0.23 | unspecified | [2] Gierlotka 2013; _cites Ghosh 2001_ [doi](https://doi.org/10.1016/s1359-6454%2801%2900187-2) | Table 4, p. 5, row 2; `ORC-QHMG4H2ESS` |  |

## Other properties

### Phase transition (2)

Table: Phase transition, Cu–Si system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Phase transition | 1132.15 K | 1132.15 | congruent melting: L -> η; _L: Si 0.24; η: Si 0.24_ | model | [3] Yan 2000 | Table 1, p. 3, row 31; `ORC-BEEEIGBSNB` |  |
| Phase transition | 1132.15 K | 1132.15 | congruent melting: L -> η; _L: Si 0.24; η: Si 0.24_ | experimental | [3] Yan 2000; _cites Buhler 1998_ | Table 1, p. 3, row 32; `ORC-RK5OC4HXNO` |  |

### Crystal structure (14)

Table: Crystal structure, Cu–Si system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Lattice a | 2.854 Å | 298.15 | Bcc | model | [4] Soldi 2019; _cites Olesinski 1986_ [doi](https://doi.org/10.1007/bf02881559) | Table 1, p. 3, row 3; `ORC-HMVQL4TETG` |  |
| Lattice a | 5.4306 Å | 298.15 | Diamond | model | [4] Soldi 2019; _cites Olesinski 1986_ [doi](https://doi.org/10.1007/bf02881559) | Table 1, p. 3, row 10; `ORC-K3QLNZ3W2P` |  |
| Lattice a | 3.6149 Å | 298.15 | Fcc | model | [4] Soldi 2019; _cites Olesinski 1986_ [doi](https://doi.org/10.1007/bf02881559) | Table 1, p. 3, row 1; `ORC-ELRYNKMJSO` |  |
| Lattice a | 2.5622 Å | 298.15 | Hcp | model | [4] Soldi 2019; _cites Olesinski 1986_ [doi](https://doi.org/10.1007/bf02881559) | Table 1, p. 3, row 2; `ORC-NLBV4CS7HQ.deb2c0` |  |
| Lattice a | 6.198 Å | 298.15 | γ-Cu33Si7; _alloy: Si 0.175_ | model | [4] Soldi 2019; _cites Olesinski 1986_ [doi](https://doi.org/10.1007/bf02881559) | Table 1, p. 3, row 5; `ORC-I7NS57K3BA` |  |
| Lattice a | 4.036 Å | 298.15 | δ-Cu33Si7; _alloy: Si 0.175_ | model | [4] Soldi 2019; _cites Mattern 2007_ | Table 1, p. 3, row 4; `ORC-5TWUHISCIW.b81a1b` |  |
| Lattice a | 9.718 Å | 298.15 | ε-Cu15Si4; _alloy: Si 0.210526_ | model | [4] Soldi 2019; _cites Mattern 2007_ | Table 1, p. 3, row 6; `ORC-RCAULWVDCK` |  |
| Lattice a | 2.47 Å | 298.15 | η-Cu3Si; _alloy: Si 0.25_ | experimental | [4] Soldi 2019; _cites Solberg 1978_ [doi](https://doi.org/10.1107/s0567739478001448) | Table 1, p. 3, row 7; `ORC-WJQCRRRKVW` |  |
| Lattice a | 4.72 Å | 298.15 | η′-Cu3Si; _alloy: Si 0.25_ | experimental | [4] Soldi 2019; _cites Solberg 1978_ [doi](https://doi.org/10.1107/s0567739478001448) | Table 1, p. 3, row 8; `ORC-AGMJJDVIZY` |  |
| Lattice a | 76.76 Å | 298.15 | η″-Cu3Si; _alloy: Si 0.25_ | experimental | [4] Soldi 2019; _cites Solberg 1978_ [doi](https://doi.org/10.1107/s0567739478001448) | Table 1, p. 3, row 9; `ORC-DHJZCGVYRX.62d0ef` |  |
| Lattice b | 7 Å | 298.15 | η″-Cu3Si; _alloy: Si 0.25_ | experimental | [4] Soldi 2019; _cites Solberg 1978_ [doi](https://doi.org/10.1107/s0567739478001448) | Table 1, p. 3, row 9; `ORC-DHJZCGVYRX.dd5865` |  |
| Lattice c | 4.1823 Å | 298.15 | Hcp | model | [4] Soldi 2019; _cites Olesinski 1986_ [doi](https://doi.org/10.1007/bf02881559) | Table 1, p. 3, row 2; `ORC-NLBV4CS7HQ.625a83` |  |
| Lattice c | 4.943 Å | 298.15 | δ-Cu33Si7; _alloy: Si 0.175_ | model | [4] Soldi 2019; _cites Mattern 2007_ | Table 1, p. 3, row 4; `ORC-5TWUHISCIW.d5f6ec` |  |
| Lattice c | 21.94 Å | 298.15 | η″-Cu3Si; _alloy: Si 0.25_ | experimental | [4] Soldi 2019; _cites Solberg 1978_ [doi](https://doi.org/10.1107/s0567739478001448) | Table 1, p. 3, row 9; `ORC-DHJZCGVYRX.0086a3` |  |

## Sources

Reporting papers the values were read from (a value cited from another work names that work in its row).

1. Ales Kroupa, Ondrej Zobac, Adela Zemanova, Klaus W. Richter, CALPHAD-Type Reassessment of Cu-Si and Full Assessment of the Al-Cu-Si Systems, J. Phase Equilib. Diffus. 45, 1206-1243 (2024). [doi:10.1007/s11669-024-01160-5](https://doi.org/10.1007/s11669-024-01160-5)
2. Wojciech Gierlotka, Md. Azizul Haque, On the binary (Cu + Si) system: Thermodynamic modelling of the phase diagram and atomic mobility in face centred cubic phase, The Journal of Chemical Thermodynamics 57, 32-38 (2013). [doi:10.1016/j.jct.2012.07.025](https://doi.org/10.1016/j.jct.2012.07.025)
3. Xinyan Yan, Y.A Chang, A thermodynamic analysis of the Cu–Si system, Journal of Alloys and Compounds 308, 221-229 (2000). [doi:10.1016/s0925-8388(00)00983-x](https://doi.org/10.1016/s0925-8388%2800%2900983-x)
4. Luca Soldi, Annabelle Laplace, Mathieu Roskosz, Stéphane Gossé, Phase diagram and thermodynamic model for the Cu-Si and the Cu-Fe-Si systems, Journal of Alloys and Compounds 803, 61-70 (2019). [doi:10.1016/j.jallcom.2019.06.236](https://doi.org/10.1016/j.jallcom.2019.06.236)

## Please cite

- R. Arróyave, J. Saal, D. Shin, ORCHID-Values: thermodynamic and phase-equilibrium values read from the literature (version 2026.10; Version 1, machine-extracted), Zenodo (2026). https://doi.org/10.5281/zenodo.23735569
- R. Arróyave, J. Saal, D. Shin, ORCHID-Diagrams: calculated binary phase diagrams (version 2026.10), Zenodo (2026). https://doi.org/10.5281/zenodo.23735859
- R. Arróyave, J. Saal, D. Shin, ORCHID-Hulls: binary convex hulls (Materials Project, OQMD, assessed CALPHAD) (version 2026.10), Zenodo (2026). https://doi.org/10.5281/zenodo.23735891
- 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 the original source of every value you use (paper_citation / paper_doi, and cited_dois for values the paper cites from earlier work); 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).

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_literature_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Values: thermodynamic and phase-equilibrium values read from the literature}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735569},
  url       = {https://doi.org/10.5281/zenodo.23735569},
  note      = {Version 1, machine-extracted}
}

@misc{orchid_phase_diagrams_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Diagrams: calculated binary phase diagrams}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735859},
  url       = {https://doi.org/10.5281/zenodo.23735859}
}

@misc{orchid_hulls_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Hulls: binary convex hulls (Materials Project, OQMD, assessed CALPHAD)}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735891},
  url       = {https://doi.org/10.5281/zenodo.23735891}
}

@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 ORCHID ([CITATION.cff](https://data.orchid-project.org/CITATION.cff)) and the original sources. Quotes are short excerpts kept so that each value can be checked; they remain under the publishers' copyright and are not relicensed. Source papers, page images and full text are not redistributed. Field reference: [SCHEMA.md](https://data.orchid-project.org/literature/SCHEMA.md). Machine-readable guide: [llms.txt](https://data.orchid-project.org/llms.txt). Found an error? The report link of a value (Markdown: its id, ORC-..., in the Location column) opens a pre-filled GitHub issue, https://github.com/orchid-calphad/orchid-data/issues/new?template=report-value-error.yml&record_id=\<id>, carrying only the record id, source and value; [how to contribute](https://orchid-project.org/contribute/).