# Ce–Si system

> Ce–Si system: 159 accepted literature values (invariant reaction 45, mixing / partial 44, formation 39, phase equilibrium 23) and 2 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote.

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

159 accepted literature values from 2 paper(s) (experimental 75, model 56, unspecified 28); 2 calculated phase diagram(s). 16 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/CE-SI.json) · [CSV](https://data.orchid-project.org/systems/CE-SI.csv) · [interactive explorer](https://orchid-project.org/data-explorer/#CE-SI) · [interactive phase diagram](https://orchid-project.org/phase-diagrams/#CE-SI/CeSi-04Gro.json) · [phases (13)](https://data.orchid-project.org/phases/pages/CE-SI.html) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/CE-SI.html) · [Markdown](https://data.orchid-project.org/systems/CE-SI.md)

Table: Accepted values by evidence class

| Evidence class | Values |
|---|---:|
| experimental | 75 |
| model | 56 |
| unspecified | 28 |

Table: Accepted values by property group

| Property group | Values |
|---|---:|
| invariant reaction | 45 |
| phase transition | 8 |
| phase equilibrium | 23 |
| formation | 39 |
| mixing / partial | 44 |

## 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 |
|---|---|---|---|
| CeSi-04Gro.tdb | J. Groebner, D. Mirkovic, R. Schmid-Fetzer, Metall. Mater. Trans. A, 35A, 3349-62(2004). [doi:10.1007/s11661-004-0172-y](https://doi.org/10.1007/s11661-004-0172-y) | `1de57b4b73d0894d20c60e7017a15cb92ff94dc494d1a2161dfc754d677d859c` | [viewer](https://orchid-project.org/phase-diagrams/#CE-SI/CeSi-04Gro.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/CeSi-04Gro.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/CeSi-04Gro.json) |
| CeSi-16Hua.tdb | D. Huang, S. Liu, Y. Tang, Y. Du, P. Nash, B. Sundman, Thermochim. Acta, 646, 49-58(2016). [doi:10.1016/j.tca.2016.11.003](https://doi.org/10.1016/j.tca.2016.11.003) | `bf95d2efc0a2b00bd8b5e240b1394608057b133acf1217f5beb18f2a654c2f73` | [viewer](https://orchid-project.org/phase-diagrams/#CE-SI/CeSi-16Hua.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/CeSi-16Hua.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/CeSi-16Hua.json) |

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

| TDB file | T (K) | Phases at the invariant |
|---|---:|---|
| CeSi-04Gro.tdb | 1834.99 | LIQUID (x(Si) 0.58639) + CE3SI5 (x(Si) 0.625) + CESI2_CC (x(Si) 0.66667) |
| CeSi-04Gro.tdb | 1834.99 | LIQUID (x(Si) 0.58637) + CE3SI5 (x(Si) 0.625) + CESI2_CC (x(Si) 0.66667) |
| CeSi-04Gro.tdb | 1834.99 | LIQUID (x(Si) 0.5865) + CE3SI5 (x(Si) 0.625) + CESI2_CC (x(Si) 0.66667) |
| CeSi-04Gro.tdb | 1741.67 | LIQUID (x(Si) 0.49374) + CESI_B27 (x(Si) 0.5) + CE3SI5 (x(Si) 0.625) |
| CeSi-04Gro.tdb | 1741.66 | LIQUID (x(Si) 0.49324) + CESI_B27 (x(Si) 0.5) + CE3SI5 (x(Si) 0.625) |
| CeSi-04Gro.tdb | 1741.66 | LIQUID (x(Si) 0.4932) + CESI_B27 (x(Si) 0.5) + CE3SI5 (x(Si) 0.625) |
| CeSi-04Gro.tdb | 1711.63 | LIQUID (x(Si) 0.42087) + CE5SI4 (x(Si) 0.44444) + CESI_B27 (x(Si) 0.5) |
| CeSi-04Gro.tdb | 1711.62 | LIQUID (x(Si) 0.42031) + CE5SI4 (x(Si) 0.44444) + CESI_B27 (x(Si) 0.5) |
| CeSi-04Gro.tdb | 1711.62 | LIQUID (x(Si) 0.41997) + CE5SI4 (x(Si) 0.44444) + CESI_B27 (x(Si) 0.5) |
| CeSi-04Gro.tdb | 1665.73 | LIQUID (x(Si) 0.33551) + CE3SI2_D5A (x(Si) 0.4) + CE5SI4 (x(Si) 0.44444) |
| CeSi-04Gro.tdb | 1665.73 | LIQUID (x(Si) 0.33529) + CE3SI2_D5A (x(Si) 0.4) + CE5SI4 (x(Si) 0.44444) |
| CeSi-04Gro.tdb | 1665.73 | LIQUID (x(Si) 0.3357) + CE3SI2_D5A (x(Si) 0.4) + CE5SI4 (x(Si) 0.44444) |
| CeSi-04Gro.tdb | 1665.73 | LIQUID (x(Si) 0.33528) + CE3SI2_D5A (x(Si) 0.4) + CE5SI4 (x(Si) 0.44444) |
| CeSi-04Gro.tdb | 1643.64 | LIQUID (x(Si) 0.29966) + CE5SI3_D8L (x(Si) 0.375) + CE3SI2_D5A (x(Si) 0.4) |
| CeSi-04Gro.tdb | 1643.64 | LIQUID (x(Si) 0.29973) + CE5SI3_D8L (x(Si) 0.375) + CE3SI2_D5A (x(Si) 0.4) |
| CeSi-04Gro.tdb | 1643.64 | LIQUID (x(Si) 0.29953) + CE5SI3_D8L (x(Si) 0.375) + CE3SI2_D5A (x(Si) 0.4) |
| CeSi-04Gro.tdb | 1472.47 | CESI2_CC (x(Si) 0.66667) + LIQUID (x(Si) 0.88445) + DIAMOND_A4 (x(Si) 1) |
| CeSi-04Gro.tdb | 1472.47 | CESI2_CC (x(Si) 0.66667) + LIQUID (x(Si) 0.88446) + DIAMOND_A4 (x(Si) 1) |
| CeSi-04Gro.tdb | 1049.75 | BCC_A2 (x(Si) 0) + LIQUID (x(Si) 0.01181) + CE5SI3_D8L (x(Si) 0.375) |
| CeSi-04Gro.tdb | 1049.75 | BCC_A2 (x(Si) 0) + LIQUID (x(Si) 0.01177) + CE5SI3_D8L (x(Si) 0.375) |
| CeSi-04Gro.tdb | 1000 | BCC_A2 (x(Si) 0) + FCC_A1 (x(Si) 0) + CE5SI3_D8L (x(Si) 0.375) |
| CeSi-16Hua.tdb | 1853.56 | CESI_B27 (x(Si) 0.5) + LIQUID (x(Si) 0.54594) + CE3SI5 (x(Si) 0.63) |
| CeSi-16Hua.tdb | 1853.56 | CESI_B27 (x(Si) 0.5) + LIQUID (x(Si) 0.54602) + CE3SI5 (x(Si) 0.63) |
| CeSi-16Hua.tdb | 1853.56 | CESI_B27 (x(Si) 0.5) + LIQUID (x(Si) 0.54587) + CE3SI5 (x(Si) 0.63) |
| CeSi-16Hua.tdb | 1833.56 | CE3SI5 (x(Si) 0.63) + CESI2_CC (x(Si) 0.66667) + LIQUID (x(Si) 0.7212) |
| CeSi-16Hua.tdb | 1833.56 | CE3SI5 (x(Si) 0.63) + CESI2_CC (x(Si) 0.66667) + LIQUID (x(Si) 0.72113) |
| CeSi-16Hua.tdb | 1772.89 | LIQUID (x(Si) 0.41951) + CE5SI4 (x(Si) 0.44444) + CESI_B27 (x(Si) 0.5) |
| CeSi-16Hua.tdb | 1772.89 | LIQUID (x(Si) 0.4196) + CE5SI4 (x(Si) 0.44444) + CESI_B27 (x(Si) 0.5) |
| CeSi-16Hua.tdb | 1610.29 | LIQUID (x(Si) 0.343) + CE3SI2_D5A (x(Si) 0.4) + CE5SI4 (x(Si) 0.44444) |
| CeSi-16Hua.tdb | 1610.29 | LIQUID (x(Si) 0.34297) + CE3SI2_D5A (x(Si) 0.4) + CE5SI4 (x(Si) 0.44444) |
| CeSi-16Hua.tdb | 1610.29 | LIQUID (x(Si) 0.34301) + CE3SI2_D5A (x(Si) 0.4) + CE5SI4 (x(Si) 0.44444) |
| CeSi-16Hua.tdb | 1536.25 | LIQUID (x(Si) 0.30896) + CE5SI3_D8L (x(Si) 0.375) + CE3SI2_D5A (x(Si) 0.4) |
| CeSi-16Hua.tdb | 1536.25 | LIQUID (x(Si) 0.30895) + CE5SI3_D8L (x(Si) 0.375) + CE3SI2_D5A (x(Si) 0.4) |
| CeSi-16Hua.tdb | 1536.25 | LIQUID (x(Si) 0.30911) + CE5SI3_D8L (x(Si) 0.375) + CE3SI2_D5A (x(Si) 0.4) |
| CeSi-16Hua.tdb | 1502.28 | CESI2_CC (x(Si) 0.66667) + LIQUID (x(Si) 0.83151) + DIAMOND_A4 (x(Si) 1) |
| CeSi-16Hua.tdb | 1502.28 | CESI2_CC (x(Si) 0.66667) + LIQUID (x(Si) 0.83162) + DIAMOND_A4 (x(Si) 1) |
| CeSi-16Hua.tdb | 1502.28 | CESI2_CC (x(Si) 0.66667) + LIQUID (x(Si) 0.83165) + DIAMOND_A4 (x(Si) 1) |
| CeSi-16Hua.tdb | 1471.38 | CESI_B27 (x(Si) 0.5) + CE3SI4 (x(Si) 0.57265) + CE3SI5 (x(Si) 0.63) |
| CeSi-16Hua.tdb | 1000 | BCC_A2 (x(Si) 0) + FCC_A1 (x(Si) 0) + LIQUID (x(Si) 0.04591) |
| CeSi-16Hua.tdb | 1000 | FCC_A1 (x(Si) 0) + BCC_A2 (x(Si) 0) + LIQUID (x(Si) 0.04569) |
| CeSi-16Hua.tdb | 900.07 | FCC_A1 (x(Si) 0) + LIQUID (x(Si) 0.10933) + CE5SI3_D8L (x(Si) 0.375) |
| CeSi-16Hua.tdb | 900.07 | FCC_A1 (x(Si) 0) + LIQUID (x(Si) 0.1094) + CE5SI3_D8L (x(Si) 0.375) |
| CeSi-16Hua.tdb | 900.07 | FCC_A1 (x(Si) 0) + LIQUID (x(Si) 0.10925) + CE5SI3_D8L (x(Si) 0.375) |

Convex hulls: [Materials Project DFT hull](https://data.orchid-project.org/hulls/dft-mp/CE/CE-SI.json) · [OQMD DFT hull](https://data.orchid-project.org/hulls/dft-oqmd/CE/CE-SI.json) · [CALPHAD hull CeSi-04Gro](https://data.orchid-project.org/hulls/calphad-sgte/CE/CE-SI--CeSi-04Gro.json)

## Invariant reactions (literature)

Table: Invariant reactions reported in the literature for the Ce–Si system (45)

| T (K) | Reaction / phases | Compositions (mole fraction) | Class | Source | Location | Quote |
|---:|---|---|---|---|---|---|
| 2004.5 | congruent melting: L ↔ CeSi1.68 | L: Si 0.625; CeSi1.68: Si 0.625 | model | [1] Huang 2016; _cites Kim 2015_ [doi](https://doi.org/10.1016/j.jct.2014.08.015) | Table 7, p. 8, row 32; `ORC-K3YNE7XEGN` |  |
| 1998 | congruent melting: L ↔ CeSi1.68 | L: Ce 0.37, Si 0.63; CeSi1.68: Ce 0.37, Si 0.63 | model | [1] Huang 2016; _cites Shukla 2009_ [doi](https://doi.org/10.3139/146.110003) | Table 7, p. 8, row 31; `ORC-DIWEG7RQ32` |  |
| 1993 | congruent melting: L ↔ CeSi1.68 | L: Ce 0.37, Si 0.63; CeSi1.68: Ce 0.37, Si 0.63 | experimental | [1] Huang 2016; _cites Bulanova 2002_ [doi](https://doi.org/10.1016/s0925-8388%2802%2900409-7) | Table 7, p. 8, row 29; `ORC-ONDOJOX2II` |  |
| 1992.1 | congruent melting: L ↔ CeSi1.68 | L: Si 0.63; CeSi1.68: Si 0.63 | unspecified | [1] Huang 2016 | Table 7, p. 8, row 28; `ORC-2PHSAIVAGI` |  |
| 1988 | congruent melting: L ↔ CeSi1.68 | L: Ce 0.37, Si 0.63; CeSi1.68: Ce 0.37, Si 0.63 | experimental | [1] Huang 2016 | Table 7, p. 8, row 30; `ORC-NRGJIODPWQ` |  |
| 1913 | congruent melting: L ↔ CeSi | L: Si 0.5; CeSi: Si 0.5 | model | [1] Huang 2016; _cites Kim 2015_ [doi](https://doi.org/10.1016/j.jct.2014.08.015) | Table 7, p. 8, row 20; `ORC-MC7V4G3DZO` |  |
| 1903 | congruent melting: L ↔ CeSi | L: Ce 0.5, Si 0.5; CeSi: Ce 0.5, Si 0.5 | experimental | [1] Huang 2016; _cites Bulanova 2002_ [doi](https://doi.org/10.1016/s0925-8388%2802%2900409-7) | Table 7, p. 8, row 18; `ORC-MGTH7YGJMX` |  |
| 1903 | congruent melting: L ↔ CeSi | L: Ce 0.5, Si 0.5; CeSi: Ce 0.5, Si 0.5 | model | [1] Huang 2016; _cites Shukla 2009_ [doi](https://doi.org/10.3139/146.110003) | Table 7, p. 8, row 19; `ORC-TDPAMNY52C` |  |
| 1899.5 | congruent melting: L ↔ CeSi | L: Si 0.5; CeSi: Si 0.5 | unspecified | [1] Huang 2016 | Table 7, p. 8, row 17; `ORC-KCBU2EJGIN` |  |
| 1887 | eutectic: L ↔ CeSi + CeSi1.68 | CeSi: Ce 0.5, Si 0.5; CeSi1.68: Ce 0.37, Si 0.63 | experimental | [1] Huang 2016 | Table 7, p. 8, row 23; `ORC-TFLXS7RJYW` |  |
| 1860.6 | eutectic: L ↔ CeSi + CeSi1.68 | L: Si 0.545; CeSi: Si 0.5; CeSi1.68: Si 0.625 | model | [1] Huang 2016; _cites Kim 2015_ [doi](https://doi.org/10.1016/j.jct.2014.08.015) | Table 7, p. 8, row 25; `ORC-7T3UVDXN52` |  |
| 1860 | peritectic: L + CeSi1.68 ↔ CeSi2 | CeSi1.68: Ce 0.37, Si 0.63; CeSi2: Ce 0.333333, Si 0.666667 | model | [1] Huang 2016; _cites Shukla 2009_ [doi](https://doi.org/10.3139/146.110003) | Table 7, p. 8, row 35; `ORC-NP6RT7GADL` |  |
| 1859.2 | peritectic: L + CeSi1.68 ↔ CeSi2 | L: Si 0.71; CeSi1.68: Si 0.625; CeSi2: Si 0.667 | model | [1] Huang 2016; _cites Kim 2015_ [doi](https://doi.org/10.1016/j.jct.2014.08.015) | Table 7, p. 8, row 36; `ORC-ENQ6MZU22S` |  |
| 1853.6 | eutectic: L ↔ CeSi + CeSi1.68 | L: Si 0.546; CeSi: Si 0.5; CeSi1.68: Si 0.63 | unspecified | [1] Huang 2016 | Table 7, p. 8, row 21; `ORC-AFATDA25FH` |  |
| 1848 | eutectic: L ↔ CeSi + CeSi1.68 | CeSi: Ce 0.5, Si 0.5; CeSi1.68: Ce 0.37, Si 0.63 | model | [1] Huang 2016; _cites Shukla 2009_ [doi](https://doi.org/10.3139/146.110003) | Table 7, p. 8, row 24; `ORC-WXMAU6LS5K` |  |
| 1833.6 | peritectic: L + CeSi1.68 ↔ CeSi2 | L: Si 0.721; CeSi1.68: Si 0.63; CeSi2: Si 0.667 | unspecified | [1] Huang 2016 | Table 7, p. 8, row 33; `ORC-YZMBYLIV54` |  |
| 1833 | peritectic: L + CeSi1.68 ↔ CeSi2 | CeSi1.68: Ce 0.37, Si 0.63; CeSi2: Ce 0.333333, Si 0.666667 | experimental | [1] Huang 2016; _cites Bulanova 2002_ [doi](https://doi.org/10.1016/s0925-8388%2802%2900409-7) | Table 7, p. 8, row 34; `ORC-JJQAY6FIK7` |  |
| 1805.5 | eutectic: L ↔ CeSi + CeSi1.68 | L: Si 0.55; CeSi: Ce 0.5, Si 0.5; CeSi1.68: Ce 0.37, Si 0.63 | experimental | [1] Huang 2016; _cites Bulanova 2002_ [doi](https://doi.org/10.1016/s0925-8388%2802%2900409-7) | Table 7, p. 8, row 22; `ORC-KMJDOMLVCD` |  |
| 1790 | peritectic: L + CeSi ↔ Ce5Si4 | CeSi: Ce 0.5, Si 0.5; Ce5Si4: Ce 0.555556, Si 0.444444 | model | [1] Huang 2016; _cites Shukla 2009_ [doi](https://doi.org/10.3139/146.110003) | Table 7, p. 8, row 15; `ORC-6LUBIU4VOX` |  |
| 1773 | peritectic: L + CeSi ↔ Ce5Si4 | CeSi: Ce 0.5, Si 0.5; Ce5Si4: Ce 0.555556, Si 0.444444 | experimental | [1] Huang 2016; _cites Bulanova 2002_ [doi](https://doi.org/10.1016/s0925-8388%2802%2900409-7) | Table 7, p. 8, row 14; `ORC-ZQXIIZ7RBZ` |  |
| 1772.9 | peritectic: L + CeSi ↔ Ce5Si4 | L: Si 0.419; CeSi: Si 0.5; Ce5Si4: Si 0.444 | unspecified | [1] Huang 2016 | Table 7, p. 8, row 13; `ORC-XYAHBMYYXN` |  |
| 1771.8 | peritectic: L + CeSi ↔ Ce5Si4 | L: Si 0.42; CeSi: Si 0.5; Ce5Si4: Si 0.444 | model | [1] Huang 2016; _cites Kim 2015_ [doi](https://doi.org/10.1016/j.jct.2014.08.015) | Table 7, p. 8, row 16; `ORC-2WAC27RPCT` |  |
| 1617 | peritectic: L + Ce5Si4 ↔ Ce3Si2 | Ce5Si4: Ce 0.555556, Si 0.444444; Ce3Si2: Ce 0.6, Si 0.4 | model | [1] Huang 2016; _cites Shukla 2009_ [doi](https://doi.org/10.3139/146.110003) | Table 7, p. 8, row 11; `ORC-3DMPRJU5UX` |  |
| 1610.3 | peritectic: L + Ce5Si4 ↔ Ce3Si2 | L: Si 0.343; Ce5Si4: Si 0.444; Ce3Si2: Si 0.4 | unspecified | [1] Huang 2016 | Table 7, p. 8, row 9; `ORC-XT7OKYMT3A` |  |
| 1608 | peritectic: L + Ce5Si4 ↔ Ce3Si2 | Ce5Si4: Ce 0.555556, Si 0.444444; Ce3Si2: Ce 0.6, Si 0.4 | experimental | [1] Huang 2016; _cites Bulanova 2002_ [doi](https://doi.org/10.1016/s0925-8388%2802%2900409-7) | Table 7, p. 8, row 10; `ORC-THGQLGHDBR` |  |
| 1600.6 | peritectic: L + Ce5Si4 ↔ Ce3Si2 | L: Si 0.353; Ce5Si4: Si 0.444; Ce3Si2: Si 0.4 | model | [1] Huang 2016; _cites Kim 2015_ [doi](https://doi.org/10.1016/j.jct.2014.08.015) | Table 7, p. 8, row 12; `ORC-LMSHEF35DL` |  |
| 1550 | peritectic: L + Ce3Si2 ↔ Ce5Si3 | Ce3Si2: Ce 0.6, Si 0.4; Ce5Si3: Ce 0.625, Si 0.375 | model | [1] Huang 2016; _cites Shukla 2009_ [doi](https://doi.org/10.3139/146.110003) | Table 7, p. 8, row 7; `ORC-XDPUBRMJM7` |  |
| 1545.6 | peritectic: L + Ce3Si2 ↔ Ce5Si3 | L: Si 0.326; Ce3Si2: Si 0.4; Ce5Si3: Si 0.375 | model | [1] Huang 2016; _cites Kim 2015_ [doi](https://doi.org/10.1016/j.jct.2014.08.015) | Table 7, p. 8, row 8; `ORC-FGWASIRHOG` |  |
| 1536.2 | peritectic: L + Ce3Si2 ↔ Ce5Si3 | L: Si 0.308; Ce3Si2: Si 0.4; Ce5Si3: Si 0.375 | unspecified | [1] Huang 2016 | Table 7, p. 8, row 5; `ORC-HSBK5X7GPJ` |  |
| 1533 | peritectic: L + Ce3Si2 ↔ Ce5Si3 | Ce3Si2: Ce 0.6, Si 0.4; Ce5Si3: Ce 0.625, Si 0.375 | experimental | [1] Huang 2016; _cites Bulanova 2002_ [doi](https://doi.org/10.1016/s0925-8388%2802%2900409-7) | Table 7, p. 8, row 6; `ORC-XJU4U2L7ZX` |  |
| 1514 | eutectic: L ↔ CeSi2 + (Si) | L: Si 0.815; CeSi2: Ce 0.333333, Si 0.666667 | experimental | [1] Huang 2016; _cites Vogel 1913_ [doi](https://doi.org/10.1002/zaac.19130840125) | Table 7, p. 8, row 39; `ORC-3QFKW3SPC6` |  |
| 1502.6 | eutectic: liquid ↔ (Si) + CeSi2 |  | experimental | [1] Huang 2016 | p. 1; `ORC-EUSOPRRCZO` | “The eutectic reaction liquid ↔ (Si) + CeSi2 is observed to occurs at 1502.6 K.” |
| 1502.6 | eutectic: liquid ↔ (Si) + CeSi2 |  | experimental | [1] Huang 2016 | p. 10; `ORC-HIQITSKW5X` | “The eutectic reaction liquid ↔ (Si) + CeSi2 is observed to occur at 1502.6 K.” |
| 1502.6 | eutectic: L ↔ CeSi2 + (Si) | CeSi2: Ce 0.333333, Si 0.666667 | experimental | [1] Huang 2016 | Table 7, p. 8, row 38; `ORC-KTKSESUSGO` |  |
| 1502.3 | eutectic: L ↔ CeSi2 + (Si) | L: Si 0.832; CeSi2: Si 0.667; (Si): Si 1 | unspecified | [1] Huang 2016 | Table 7, p. 8, row 37; `ORC-PP3H7ZV545` |  |
| 1471 | eutectic: L ↔ CeSi2 + (Si) | L: Si 0.82; CeSi2: Ce 0.333333, Si 0.666667 | experimental | [1] Huang 2016; _cites Bulanova 2002_ [doi](https://doi.org/10.1016/s0925-8388%2802%2900409-7) | Table 7, p. 8, row 41; `ORC-AKXBITPNKR` |  |
| 1469.1 | peritectoid: CeSi + CeSi1.68 ↔ CeSi1.34 | CeSi: Si 0.5; CeSi1.68: Si 0.63; CeSi1.34: Si 0.573 | unspecified | [1] Huang 2016 | Table 7, p. 8, row 26; `ORC-QXZJ5VIYL5` |  |
| 1469 | peritectoid: CeSi + CeSi1.68 ↔ CeSi1.34 | CeSi: Ce 0.5, Si 0.5; CeSi1.68: Ce 0.37, Si 0.63; CeSi1.34: Ce 0.42735, Si 0.57265 | experimental | [1] Huang 2016 | Table 7, p. 8, row 27; `ORC-VKKZOX2YH7` |  |
| 1465.6 | eutectic: L ↔ CeSi2 + (Si) | L: Si 0.843; CeSi2: Si 0.667; (Si): Si 1 | model | [1] Huang 2016; _cites Kim 2015_ [doi](https://doi.org/10.1016/j.jct.2014.08.015) | Table 7, p. 8, row 43; `ORC-T5TN7MGPRL` |  |
| 1463 | eutectic: L ↔ CeSi2 + (Si) | L: Si 0.87; CeSi2: Ce 0.333333, Si 0.666667 | experimental | [1] Huang 2016; _cites Benesovsky 1966_ [doi](https://doi.org/10.1007/bf00905509) | Table 7, p. 8, row 40; `ORC-55KYC66YGZ` |  |
| 1460 | eutectic: L ↔ CeSi2 + (Si) | CeSi2: Ce 0.333333, Si 0.666667 | model | [1] Huang 2016; _cites Shukla 2009_ [doi](https://doi.org/10.3139/146.110003) | Table 7, p. 8, row 42; `ORC-5DGRNM4VRM` |  |
| 908 | eutectic: L ↔ (γCe) + Ce5Si3 | L: Si 0.105; (γCe): Si 0; Ce5Si3: Si 0.375 | experimental | [1] Huang 2016; _cites Bulanova 2002_ [doi](https://doi.org/10.1016/s0925-8388%2802%2900409-7) | Table 7, p. 8, row 2; `ORC-4DYEGVGPOH` |  |
| 900.1 | eutectic: L ↔ (γCe) + Ce5Si3 | L: Si 0.109; (γCe): Si 0; Ce5Si3: Si 0.375 | unspecified | [1] Huang 2016 | Table 7, p. 8, row 1; `ORC-BDYKQZTESF` |  |
| 899 | eutectic: L ↔ (γCe) + Ce5Si3 | Ce5Si3: Ce 0.625, Si 0.375 | model | [1] Huang 2016; _cites Shukla 2009_ [doi](https://doi.org/10.3139/146.110003) | Table 7, p. 8, row 3; `ORC-IMRVZRM3ZG` |  |
| 898.9 | eutectic: L ↔ (γCe) + Ce5Si3 | L: Si 0.106; (γCe): Si 0; Ce5Si3: Si 0.375 | model | [1] Huang 2016; _cites Kim 2015_ [doi](https://doi.org/10.1016/j.jct.2014.08.015) | Table 7, p. 8, row 4; `ORC-HQSTZJWD3E` |  |

## Formation enthalpies

Literature values in kJ/mol-atom where the per-atom basis is known. DFT columns: the lowest-energy entry at the same composition (Materials Project 2026.04.13, OQMD v1.8; different energy references, never averaged), from [dft_parity.json](https://data.orchid-project.org/literature/dft_parity.json).

Table: Enthalpies of formation, Ce–Si system (39)

| Phase | Compound | Value | T (K) | Class | MP DFT (kJ/mol-atom) | OQMD DFT (kJ/mol-atom) | Source | Location | Quote |
|---|---|---:|---:|---|---:|---:|---|---|---|
| Ce3Si2 | [Ce3Si2](https://data.orchid-project.org/compounds/Ce3Si2.html) | -66.239 kJ/mol-atom | 298.15 | unspecified | -52.537 (mp-aaacjkeh) | -57.374 (oqmd-29190) | [1] Huang 2016 | Table 8, p. 9, row 34; `ORC-ASGDLUKUY6.94322d` |  |
| Ce3Si2 | [Ce3Si2](https://data.orchid-project.org/compounds/Ce3Si2.html) | -66.239 kJ/mol-atom | 298.15 | model | -52.537 (mp-aaacjkeh) | -57.374 (oqmd-29190) | [1] Huang 2016 | Table 8, p. 9, row 24; `ORC-RV2HS3SYEF` |  |
| Ce3Si2 | [Ce3Si2](https://data.orchid-project.org/compounds/Ce3Si2.html) | -65.6 kJ/mol-atom | 298.15 | model | -52.537 (mp-aaacjkeh) | -57.374 (oqmd-29190) | [1] Huang 2016; _cites Kim 2015_ [doi](https://doi.org/10.1016/j.jct.2014.08.015) | Table 8, p. 9, row 17; `ORC-BRUAXVRQQV` |  |
| Ce3Si2 | [Ce3Si2](https://data.orchid-project.org/compounds/Ce3Si2.html) | -65.6 kJ/mol-atom | 298.15 | unspecified | -52.537 (mp-aaacjkeh) | -57.374 (oqmd-29190) | [1] Huang 2016 | Table 8, p. 9, row 33; `ORC-QA2GU6QNKT.951d1a` |  |
| Ce3Si2 | [Ce3Si2](https://data.orchid-project.org/compounds/Ce3Si2.html) | -65 kJ/mol-atom | 298.15 | unspecified | -52.537 (mp-aaacjkeh) | -57.374 (oqmd-29190) | [1] Huang 2016 | Table 8, p. 9, row 31; `ORC-6DPSRE2VIG.a3d2c9` |  |
| Ce3Si2 | [Ce3Si2](https://data.orchid-project.org/compounds/Ce3Si2.html) | -65 kJ/mol-atom | 298.15 | model | -52.537 (mp-aaacjkeh) | -57.374 (oqmd-29190) | [1] Huang 2016; _cites Grobner 2004_ [doi](https://doi.org/10.1007/s11661-004-0172-y) | Table 8, p. 9, row 5; `ORC-H6CPG6DJWV` |  |
| Ce3Si2 | [Ce3Si2](https://data.orchid-project.org/compounds/Ce3Si2.html) | -60.9 kJ/mol-atom | 298.15 | unspecified | -52.537 (mp-aaacjkeh) | -57.374 (oqmd-29190) | [1] Huang 2016 | Table 8, p. 9, row 32; `ORC-GDQDWANVDJ.4c3391` |  |
| Ce3Si2 | [Ce3Si2](https://data.orchid-project.org/compounds/Ce3Si2.html) | -60.9 kJ/mol-atom | 298.15 | model | -52.537 (mp-aaacjkeh) | -57.374 (oqmd-29190) | [1] Huang 2016; _cites Shukla 2009_ [doi](https://doi.org/10.3139/146.110003) | Table 8, p. 9, row 11; `ORC-RD7ELS4ZSR` |  |
| Ce5Si3 | [Ce5Si3](https://data.orchid-project.org/compounds/Ce5Si3.html) | -64.31 kJ/mol-atom | 298.15 | unspecified | -51.113 (mp-aaabgllv) | -53.612 (oqmd-29191) | [1] Huang 2016 | Table 8, p. 9, row 34; `ORC-ASGDLUKUY6.0da1c6` |  |
| Ce5Si3 | [Ce5Si3](https://data.orchid-project.org/compounds/Ce5Si3.html) | -64.31 kJ/mol-atom | 298.15 | model | -51.113 (mp-aaabgllv) | -53.612 (oqmd-29191) | [1] Huang 2016 | Table 8, p. 9, row 23; `ORC-PAGFYZKPGO` |  |
| Ce5Si3 | [Ce5Si3](https://data.orchid-project.org/compounds/Ce5Si3.html) | -63.44 kJ/mol-atom | 298.15 | unspecified | -51.113 (mp-aaabgllv) | -53.612 (oqmd-29191) | [1] Huang 2016 | Table 8, p. 9, row 33; `ORC-QA2GU6QNKT.844dd4` |  |
| Ce5Si3 | [Ce5Si3](https://data.orchid-project.org/compounds/Ce5Si3.html) | -63.44 kJ/mol-atom | 298.15 | model | -51.113 (mp-aaabgllv) | -53.612 (oqmd-29191) | [1] Huang 2016; _cites Kim 2015_ [doi](https://doi.org/10.1016/j.jct.2014.08.015) | Table 8, p. 9, row 16; `ORC-YGUW7GTLL7` |  |
| Ce5Si3 | [Ce5Si3](https://data.orchid-project.org/compounds/Ce5Si3.html) | -61 kJ/mol-atom | 298.15 | unspecified | -51.113 (mp-aaabgllv) | -53.612 (oqmd-29191) | [1] Huang 2016 | Table 8, p. 9, row 31; `ORC-6DPSRE2VIG.263e05` |  |
| Ce5Si3 | [Ce5Si3](https://data.orchid-project.org/compounds/Ce5Si3.html) | -61 kJ/mol-atom | 298.15 | model | -51.113 (mp-aaabgllv) | -53.612 (oqmd-29191) | [1] Huang 2016; _cites Grobner 2004_ [doi](https://doi.org/10.1007/s11661-004-0172-y) | Table 8, p. 9, row 4; `ORC-W4XMN74QB3` |  |
| Ce5Si3 | [Ce5Si3](https://data.orchid-project.org/compounds/Ce5Si3.html) | -57.225 kJ/mol-atom | 298.15 | unspecified | -51.113 (mp-aaabgllv) | -53.612 (oqmd-29191) | [1] Huang 2016 | Table 8, p. 9, row 32; `ORC-GDQDWANVDJ.fa878d` |  |
| Ce5Si3 | [Ce5Si3](https://data.orchid-project.org/compounds/Ce5Si3.html) | -57.225 kJ/mol-atom | 298.15 | model | -51.113 (mp-aaabgllv) | -53.612 (oqmd-29191) | [1] Huang 2016; _cites Shukla 2009_ [doi](https://doi.org/10.3139/146.110003) | Table 8, p. 9, row 10; `ORC-NE6QP223MZ` |  |
| Ce5Si3 | [Ce5Si3](https://data.orchid-project.org/compounds/Ce5Si3.html) | -52.8 kJ/mol-atom ± 0.6 | 298.15 | experimental | -51.113 (mp-aaabgllv) | -53.612 (oqmd-29191) | [1] Huang 2016; _cites Meschel 1996_ [doi](https://doi.org/10.1016/s0925-8388%2896%2902400-0) | Table 8, p. 9, row 3; `ORC-OEYNFRKYXY` |  |
| Ce5Si4 | [Ce5Si4](https://data.orchid-project.org/compounds/Ce5Si4.html) | -69 kJ/mol-atom | 298.15 | unspecified | -55.383 (mp-aaacqclx) | -62.628 (oqmd-107477) | [1] Huang 2016 | Table 8, p. 9, row 31; `ORC-6DPSRE2VIG.493c69` |  |
| Ce5Si4 | [Ce5Si4](https://data.orchid-project.org/compounds/Ce5Si4.html) | -69 kJ/mol-atom | 298.15 | model | -55.383 (mp-aaacqclx) | -62.628 (oqmd-107477) | [1] Huang 2016; _cites Grobner 2004_ [doi](https://doi.org/10.1007/s11661-004-0172-y) | Table 8, p. 9, row 6; `ORC-ZX4DTFXQHS` |  |
| Ce5Si4 | [Ce5Si4](https://data.orchid-project.org/compounds/Ce5Si4.html) | -68.985 kJ/mol-atom | 298.15 | unspecified | -55.383 (mp-aaacqclx) | -62.628 (oqmd-107477) | [1] Huang 2016 | Table 8, p. 9, row 34; `ORC-ASGDLUKUY6.f9fdb6` |  |
| Ce5Si4 | [Ce5Si4](https://data.orchid-project.org/compounds/Ce5Si4.html) | -68.985 kJ/mol-atom | 298.15 | model | -55.383 (mp-aaacqclx) | -62.628 (oqmd-107477) | [1] Huang 2016 | Table 8, p. 9, row 25; `ORC-XIGZNQXWHZ` |  |
| Ce5Si4 | [Ce5Si4](https://data.orchid-project.org/compounds/Ce5Si4.html) | -67.78 kJ/mol-atom | 298.15 | model | -55.383 (mp-aaacqclx) | -62.628 (oqmd-107477) | [1] Huang 2016; _cites Kim 2015_ [doi](https://doi.org/10.1016/j.jct.2014.08.015) | Table 8, p. 9, row 18; `ORC-KWSYHLKRM2` |  |
| Ce5Si4 | [Ce5Si4](https://data.orchid-project.org/compounds/Ce5Si4.html) | -67.78 kJ/mol-atom | 298.15 | unspecified | -55.383 (mp-aaacqclx) | -62.628 (oqmd-107477) | [1] Huang 2016 | Table 8, p. 9, row 33; `ORC-QA2GU6QNKT.c37c29` |  |
| Ce5Si4 | [Ce5Si4](https://data.orchid-project.org/compounds/Ce5Si4.html) | -65.689 kJ/mol-atom | 298.15 | unspecified | -55.383 (mp-aaacqclx) | -62.628 (oqmd-107477) | [1] Huang 2016 | Table 8, p. 9, row 32; `ORC-GDQDWANVDJ.e10fc2` |  |
| Ce5Si4 | [Ce5Si4](https://data.orchid-project.org/compounds/Ce5Si4.html) | -65.689 kJ/mol-atom | 298.15 | model | -55.383 (mp-aaacqclx) | -62.628 (oqmd-107477) | [1] Huang 2016; _cites Shukla 2009_ [doi](https://doi.org/10.3139/146.110003) | Table 8, p. 9, row 12; `ORC-VB5V4ZATKA` |  |
| CeSi | [CeSi](https://data.orchid-project.org/compounds/CeSi.html) | -71.1 kJ/mol-atom ± 3.3 | 298.15 | unspecified | -59.9 (mp-aaaabfgd) | -69.324 (oqmd-18278) | [1] Huang 2016 | Table 8, p. 9, row 30; `ORC-3OKCPBA3ES` |  |
| CeSi | [CeSi](https://data.orchid-project.org/compounds/CeSi.html) | -71.1 kJ/mol-atom | 298.15 | unspecified | -59.9 (mp-aaaabfgd) | -69.324 (oqmd-18278) | [1] Huang 2016 | Table 8, p. 9, row 31; `ORC-6DPSRE2VIG.1c5296` |  |
| CeSi | [CeSi](https://data.orchid-project.org/compounds/CeSi.html) | -71.1 kJ/mol-atom | 298.15 | model | -59.9 (mp-aaaabfgd) | -69.324 (oqmd-18278) | [1] Huang 2016; _cites Grobner 2004_ [doi](https://doi.org/10.1007/s11661-004-0172-y) | Table 8, p. 9, row 7; `ORC-AR26SH6NYA` |  |
| CeSi | [CeSi](https://data.orchid-project.org/compounds/CeSi.html) | -71.1 kJ/mol-atom ± 3.3 | 298.15 | experimental | -59.9 (mp-aaaabfgd) | -69.324 (oqmd-18278) | [1] Huang 2016; _cites Meschel 1995_ [doi](https://doi.org/10.1016/0925-8388%2894%2906009-6) | Table 8, p. 9, row 1; `ORC-MRFXCOQHIK` |  |
| CeSi | [CeSi](https://data.orchid-project.org/compounds/CeSi.html) | -70.5 kJ/mol-atom | 298.15 | unspecified | -59.9 (mp-aaaabfgd) | -69.324 (oqmd-18278) | [1] Huang 2016 | Table 8, p. 9, row 32; `ORC-GDQDWANVDJ.e0ddda` |  |
| CeSi | [CeSi](https://data.orchid-project.org/compounds/CeSi.html) | -70.5 kJ/mol-atom | 298.15 | model | -59.9 (mp-aaaabfgd) | -69.324 (oqmd-18278) | [1] Huang 2016; _cites Shukla 2009_ [doi](https://doi.org/10.3139/146.110003) | Table 8, p. 9, row 13; `ORC-SYHPZ5QQGO` |  |
| CeSi | [CeSi](https://data.orchid-project.org/compounds/CeSi.html) | -70.082 kJ/mol-atom | 298.15 | unspecified | -59.9 (mp-aaaabfgd) | -69.324 (oqmd-18278) | [1] Huang 2016 | Table 8, p. 9, row 34; `ORC-ASGDLUKUY6.f8fb39` |  |
| CeSi | [CeSi](https://data.orchid-project.org/compounds/CeSi.html) | -70.082 kJ/mol-atom | 298.15 | model | -59.9 (mp-aaaabfgd) | -69.324 (oqmd-18278) | [1] Huang 2016 | Table 8, p. 9, row 26; `ORC-OGT5OIQOGU` |  |
| CeSi | [CeSi](https://data.orchid-project.org/compounds/CeSi.html) | -70 kJ/mol-atom | 298.15 | model | -59.9 (mp-aaaabfgd) | -69.324 (oqmd-18278) | [1] Huang 2016; _cites Kim 2015_ [doi](https://doi.org/10.1016/j.jct.2014.08.015) | Table 8, p. 9, row 19; `ORC-752KEUNSON.a4dad6` |  |
| CeSi | [CeSi](https://data.orchid-project.org/compounds/CeSi.html) | -70 kJ/mol-atom | 298.15 | unspecified | -59.9 (mp-aaaabfgd) | -69.324 (oqmd-18278) | [1] Huang 2016 | Table 8, p. 9, row 33; `ORC-QA2GU6QNKT.06e05a` |  |
| CeSi1.68 |  | -70 kJ/mol-atom ± 6 | 1373 | experimental |  |  | [1] Huang 2016 | Table 8, p. 9, row 22; `ORC-4JYDJKOVWL` |  |
| CeSi1.68 |  | -70 kJ/mol-atom ± 6 | 298.15 | model |  |  | [1] Huang 2016; _cites Kim 2015_ [doi](https://doi.org/10.1016/j.jct.2014.08.015) | Table 8, p. 9, row 19; `ORC-752KEUNSON.da078b` |  |
| CeSi1.68 |  | -65 kJ/mol-atom | 298.15 | unspecified |  |  | [1] Huang 2016 | Table 8, p. 9, row 31; `ORC-6DPSRE2VIG.b396e3` |  |
| CeSi1.68 |  | -65 kJ/mol-atom | 298.15 | model |  |  | [1] Huang 2016; _cites Grobner 2004_ [doi](https://doi.org/10.1007/s11661-004-0172-y) | Table 8, p. 9, row 8; `ORC-A2ZEKFPD6K` |  |

## Other properties

### Phase transition (8)

Table: Phase transition, Ce–Si system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Phase transition | 1469 K | 1469 | other | experimental | [1] Huang 2016 | p. 10; `ORC-LZTHNRK5ZW` | “A phase with composition close to CeSi1.34 was observed and the decomposition temperature of 1469 K was detected.” |
| Phase transition | 1663.15 K | 1663.15 | Ce3Si2 | experimental | [2] Gröbner 2004 | p. 2; `ORC-4WLC3BNIXP.0fbb54` | “Six intermediate phases were found with corresponding melting temperatures: Ce5Si3 (1400 °C), Ce3Si2 (1390 °C), Ce5Si4 (1440 °C), CeSi (1470 °C), Ce3Si5 (1560 °C), and CeSi2 (1620 °C).” |
| Phase transition | 1673.15 K | 1673.15 | Ce5Si3 | experimental | [2] Gröbner 2004 | p. 2; `ORC-4WLC3BNIXP.2d6f84` | “Six intermediate phases were found with corresponding melting temperatures: Ce5Si3 (1400 °C), Ce3Si2 (1390 °C), Ce5Si4 (1440 °C), CeSi (1470 °C), Ce3Si5 (1560 °C), and CeSi2 (1620 °C).” |
| Phase transition | 1713.15 K | 1713.15 | Ce5Si4 | experimental | [2] Gröbner 2004 | p. 2; `ORC-4WLC3BNIXP.1cc332` | “Six intermediate phases were found with corresponding melting temperatures: Ce5Si3 (1400 °C), Ce3Si2 (1390 °C), Ce5Si4 (1440 °C), CeSi (1470 °C), Ce3Si5 (1560 °C), and CeSi2 (1620 °C).” |
| Phase transition | 1743.15 K | 1743.15 | CeSi | experimental | [2] Gröbner 2004 | p. 2; `ORC-4WLC3BNIXP.13f213` | “Six intermediate phases were found with corresponding melting temperatures: Ce5Si3 (1400 °C), Ce3Si2 (1390 °C), Ce5Si4 (1440 °C), CeSi (1470 °C), Ce3Si5 (1560 °C), and CeSi2 (1620 °C).” |
| Phase transition | 1833.15 K | 1833.15 | Ce3Si5 | experimental | [2] Gröbner 2004 | p. 2; `ORC-4WLC3BNIXP.1b4914` | “Six intermediate phases were found with corresponding melting temperatures: Ce5Si3 (1400 °C), Ce3Si2 (1390 °C), Ce5Si4 (1440 °C), CeSi (1470 °C), Ce3Si5 (1560 °C), and CeSi2 (1620 °C).” |
| Phase transition | 1893.15 K | 1893.15 | CeSi2 | experimental | [2] Gröbner 2004 | p. 2; `ORC-4WLC3BNIXP.ab94be` | “Six intermediate phases were found with corresponding melting temperatures: Ce5Si3 (1400 °C), Ce3Si2 (1390 °C), Ce5Si4 (1440 °C), CeSi (1470 °C), Ce3Si5 (1560 °C), and CeSi2 (1620 °C).” |
| Phase transition | 1993 K | 1993 | other | experimental | [1] Huang 2016 | p. 7; `ORC-P4BYWYKKLZ` | “Since the error bars of the work by Ryss et al. \[8,9\] were not given, and one should notice their experimental temperature (1923 K) is lower than the melting temperature of CeSi1.68 (1993 K) and across the two-phase regions, the deviation between the calculated curve and the experimental one is acceptable.” |

### Phase equilibrium (23)

Table: Phase equilibrium, Ce–Si system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Phase assemblage |  | 1373 | (Si) + CeSi2; _alloy: Ce 0.08, Si 0.92_ | experimental | [1] Huang 2016 | Table 5, p. 5, row 1; `ORC-HP2BLVS6QV` |  |
| Phase assemblage |  | 1373 | Ce5Si3 + Ce5Si3 + (Ce); _alloy: Si 0.375_ | experimental | [1] Huang 2016 | Table 4, p. 3, row 8; `ORC-RHI6MKJSS7` |  |
| Phase assemblage |  | 1373 | CeSi1.68; _alloy: Ce 0.37, Si 0.63_ | experimental | [1] Huang 2016 | Table 5, p. 5, row 9; `ORC-ZUJWZ36S43` |  |
| Phase assemblage |  | 1373 | CeSi2; _alloy: Ce 0.36, Si 0.64_ | experimental | [1] Huang 2016 | Table 5, p. 5, row 7; `ORC-B2Z3MEXZ6M` |  |
| Phase assemblage |  | 1373 | CeSi2; _alloy: Ce 0.35, Si 0.65_ | experimental | [1] Huang 2016 | Table 5, p. 5, row 6; `ORC-QHONMTJINI` |  |
| Phase assemblage |  | 1373 | CeSi2; _alloy: Ce 0.33, Si 0.67_ | experimental | [1] Huang 2016 | Table 5, p. 5, row 4; `ORC-QMRHVZOMPF` |  |
| Phase assemblage |  | 1373 | CeSi2; _alloy: Ce 0.34, Si 0.66_ | experimental | [1] Huang 2016 | Table 5, p. 5, row 5; `ORC-ZAFRMOLKMH` |  |
| Phase composition |  | 1373 | (Si) + CeSi2; _CeSi2: Ce 0.33, Si 0.67_ | experimental | [1] Huang 2016 | Table 4, p. 3, row 1; `ORC-GBRVC6F4WM` |  |
| Phase composition |  | 1373 | (Si) + CeSi2; _(Si): Ce 0.002, Si 0.998; CeSi2: Ce 0.332, Si 0.668_ | experimental | [1] Huang 2016 | Table 5, p. 5, row 3; `ORC-IWJZH4F6EM` |  |
| Phase composition |  | 1373 | (Si) + CeSi2; _(Si): Ce 0.001, Si 0.999; CeSi2: Ce 0.334, Si 0.666_ | experimental | [1] Huang 2016 | Table 5, p. 5, row 2; `ORC-Q7TP4ZNJLZ` |  |
| Phase composition |  | 1373 | Ce3Si2 + Ce5Si3; _Ce3Si2: Ce 0.597, Si 0.403; Ce5Si3: Ce 0.618, Si 0.382_ | experimental | [1] Huang 2016 | Table 4, p. 3, row 7; `ORC-RESRAEAVYP` |  |
| Phase composition |  | 1373 | Ce5Si4 + Ce3Si2; _Ce5Si4: Ce 0.549, Si 0.451; Ce3Si2: Ce 0.598, Si 0.402_ | experimental | [1] Huang 2016 | Table 4, p. 3, row 6; `ORC-BK3DIP5LDQ` |  |
| Phase composition |  | 1373 | CeSi + Ce5Si4; _CeSi: Ce 0.501, Si 0.499; Ce5Si4: Ce 0.551, Si 0.449_ | experimental | [1] Huang 2016 | Table 4, p. 3, row 5; `ORC-BI2DJIBGJR` |  |
| Phase composition |  | 1373 | CeSi1.34 + CeSi; _CeSi1.34: Ce 0.424, Si 0.576; CeSi: Ce 0.492, Si 0.508_ | experimental | [1] Huang 2016 | Table 5, p. 5, row 14; `ORC-BX5GJIT7EC` |  |
| Phase composition |  | 1373 | CeSi1.34 + CeSi; _CeSi1.34: Ce 0.427, Si 0.573; CeSi: Ce 0.495, Si 0.505_ | experimental | [1] Huang 2016 | Table 5, p. 5, row 12; `ORC-Q65XMFKZIM` |  |
| Phase composition |  | 1373 | CeSi1.34 + CeSi; _CeSi1.34: Ce 0.426, Si 0.574; CeSi: Ce 0.488, Si 0.512_ | experimental | [1] Huang 2016 | Table 4, p. 3, row 4; `ORC-R2C3RLLTQ4` |  |
| Phase composition |  | 1373 | CeSi1.34 + CeSi (trace); _CeSi1.34: Ce 0.432, Si 0.568; CeSi (trace): Ce 0.505, Si 0.495_ | experimental | [1] Huang 2016 | Table 5, p. 5, row 11; `ORC-DL5EPY3YZX` |  |
| Phase composition |  | 1373 | CeSi1.68; _CeSi1.68: Ce 0.364, Si 0.636_ | experimental | [1] Huang 2016 | Table 5, p. 5, row 8; `ORC-MVLGQ2F4Z3` |  |
| Phase composition |  | 1373 | CeSi1.68 + CeSi1.34; _CeSi1.68: Ce 0.368, Si 0.632; CeSi1.34: Ce 0.42, Si 0.58_ | experimental | [1] Huang 2016 | Table 4, p. 3, row 3; `ORC-3ZBRWUSEVY` |  |
| Phase composition |  | 1373 | CeSi1.68 + CeSi1.34; _CeSi1.68: Ce 0.369, Si 0.631; CeSi1.34: Ce 0.431, Si 0.569_ | experimental | [1] Huang 2016 | Table 5, p. 5, row 10; `ORC-YNKR4LRXDN` |  |
| Phase composition |  | 1373 | CeSi1.68\* + CeSi\* + CeSi1.68 + CeSi; _CeSi1.68\*: Ce 0.36, Si 0.64; CeSi1.68: Ce 0.36, Si 0.64; CeSi\*: Ce 0.497, Si 0.503; CeSi: Ce 0.497, Si 0.503_ | experimental | [1] Huang 2016 | Table 5, p. 5, row 15; `ORC-JKIMRQSAFL` |  |
| Phase composition |  | 1373 | CeSi1.68\* + CeSi\* + CeSi1.68 + CeSi; _CeSi1.68\*: Ce 0.364, Si 0.636; CeSi1.68: Ce 0.364, Si 0.636; CeSi\*: Ce 0.499, Si 0.501; CeSi: Ce 0.499, Si 0.501_ | experimental | [1] Huang 2016 | Table 5, p. 5, row 13; `ORC-SR5FV6EH3X` |  |
| Phase composition |  | 1373 | CeSi2 + CeSi1.68; _CeSi2: Ce 0.358, Si 0.642; CeSi1.68: Ce 0.362, Si 0.638_ | experimental | [1] Huang 2016 | Table 4, p. 3, row 2; `ORC-UPMDIQPHEN` |  |

### Mixing / partial (44)

Table: Mixing / partial, Ce–Si system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Enthalpy of mixing; _printed: ΔH_ | -11 kJ/mol-atom | 1890.15 | liquid; _alloy: Ce 0.05, Si 0.95_ | experimental | [2] Gröbner 2004; _cites Sudavtsova 1988_ | Table VIII, p. 11, row 45; `ORC-2GY2WPLP5O.7dcb92` |  |
| Enthalpy of mixing; _printed: ΔH_ | -35 kJ/mol-atom | 1890.15 | liquid; _alloy: Ce 0.15, Si 0.85_ | experimental | [2] Gröbner 2004; _cites Sudavtsova 1988_ | Table VIII, p. 11, row 39; `ORC-DUUH5E5WYV.f7952a` |  |
| Enthalpy of mixing; _printed: ΔH_ | -45 kJ/mol-atom | 1890.15 | liquid; _alloy: Ce 0.2, Si 0.8_ | experimental | [2] Gröbner 2004; _cites Sudavtsova 1988_ | Table VIII, p. 11, row 36; `ORC-I24SFUVJ7N.928c41` |  |
| Enthalpy of mixing; _printed: ΔH_ | -23 kJ/mol-atom | 1890.15 | liquid; _alloy: Ce 0.1, Si 0.9_ | experimental | [2] Gröbner 2004; _cites Sudavtsova 1988_ | Table VIII, p. 11, row 42; `ORC-K5BB5SKJGL.36020b` |  |
| Enthalpy of mixing; _printed: ΔH_ | -15.7 kJ/mol-atom | 1923.15 | liquid; _alloy: Ce 0.3, Si 0.7_ | model | [2] Gröbner 2004 | Table VIII, p. 11, row 32; `ORC-3FEKBGTQDG.ba344f` |  |
| Enthalpy of mixing; _printed: ΔH_ | -13.6 kJ/mol-atom | 1923.15 | liquid; _alloy: Ce 0.9, Si 0.1_ | model | [2] Gröbner 2004 | Table VIII, p. 11, row 6; `ORC-3KZ7CXWTIN.0cfc73` |  |
| Enthalpy of mixing; _printed: ΔH_ | -22.1 kJ/mol-atom | 1923.15 | liquid; _alloy: Ce 0.8, Si 0.2_ | model | [2] Gröbner 2004 | Table VIII, p. 11, row 10; `ORC-3YFBHRXVXT.2e7db3` |  |
| Enthalpy of mixing; _printed: ΔH_ | -43.3 kJ/mol-atom | 1923.15 | liquid; _alloy: Ce 0.2, Si 0.8_ | experimental | [2] Gröbner 2004; _cites Ryss 1977_ | Table VIII, p. 11, row 35; `ORC-47GIDRCAIY.25d926` |  |
| Enthalpy of mixing; _printed: ΔH_ | -23.2 kJ/mol-atom | 1923.15 | liquid; _alloy: Ce 0.45, Si 0.55_ | model | [2] Gröbner 2004 | Table VIII, p. 11, row 26; `ORC-4JISTRC7KB.d22e70` |  |
| Enthalpy of mixing; _printed: ΔH_ | -33.4 kJ/mol-atom | 1923.15 | liquid; _alloy: Ce 0.15, Si 0.85_ | experimental | [2] Gröbner 2004; _cites Ryss 1977_ | Table VIII, p. 11, row 38; `ORC-5OZUNE57VC.439fb3` |  |
| Enthalpy of mixing; _printed: ΔH_ | -20.9 kJ/mol-atom | 1923.15 | liquid; _alloy: Ce 0.4, Si 0.6_ | model | [2] Gröbner 2004 | Table VIII, p. 11, row 28; `ORC-6KRFX3QKF7.2cf362` |  |
| Enthalpy of mixing; _printed: ΔH_ | -72 kJ/mol-atom | 1923.15 | liquid; _alloy: Ce 0.55, Si 0.45_ | experimental | [2] Gröbner 2004; _cites Ryss 1977_ | Table VIII, p. 11, row 19; `ORC-6WTVTZV5WW.067771` |  |
| Enthalpy of mixing; _printed: ΔH_ | -26.3 kJ/mol-atom | 1923.15 | liquid; _alloy: Ce 0.55, Si 0.45_ | model | [2] Gröbner 2004 | Table VIII, p. 11, row 20; `ORC-A4IL4QZU5T.4124be` |  |
| Enthalpy of mixing; _printed: ΔH_ | -11.65 kJ/mol-atom | 1923.15 | liquid; _alloy: Ce 0.05, Si 0.95_ | experimental | [2] Gröbner 2004; _cites Ryss 1977_ | Table VIII, p. 11, row 44; `ORC-BJUR3AAGDL.0ab99e` |  |
| Enthalpy of mixing; _printed: ΔH_ | -71.3 kJ/mol-atom | 1923.15 | liquid; _alloy: Ce 0.4, Si 0.6_ | experimental | [2] Gröbner 2004; _cites Ryss 1977_ | Table VIII, p. 11, row 27; `ORC-DMUEGPCIHE.188403` |  |
| Enthalpy of mixing; _printed: ΔH_ | -73.9 kJ/mol-atom | 1923.15 | liquid; _alloy: Ce 0.5, Si 0.5_ | experimental | [2] Gröbner 2004; _cites Ryss 1977_ | Table VIII, p. 11, row 21; `ORC-DMZBBXUC7I.ab0471` |  |
| Enthalpy of mixing; _printed: ΔH_ | -24.9 kJ/mol-atom | 1923.15 | liquid; _alloy: Ce 0.5, Si 0.5_ | model | [2] Gröbner 2004 | Table VIII, p. 11, row 22; `ORC-F4LLL3VMUO.1aa105` |  |
| Enthalpy of mixing; _printed: ΔH_ | -56.6 kJ/mol-atom | 1923.15 | liquid; _alloy: Ce 0.7, Si 0.3_ | experimental | [2] Gröbner 2004; _cites Ryss 1977_ | Table VIII, p. 11, row 13; `ORC-FFTUE5RXFA.6a7fd2` |  |
| Enthalpy of mixing; _printed: ΔH_ | -24.7 kJ/mol-atom | 1923.15 | liquid; _alloy: Ce 0.75, Si 0.25_ | model | [2] Gröbner 2004 | Table VIII, p. 11, row 12; `ORC-GYEUU662WB.41e3c6` |  |
| Enthalpy of mixing; _printed: ΔH_ | -7.1 kJ/mol-atom | 1923.15 | liquid; _alloy: Ce 0.15, Si 0.85_ | model | [2] Gröbner 2004 | Table VIII, p. 11, row 40; `ORC-IBP6PUFL7L.8213ff` |  |
| Enthalpy of mixing; _printed: ΔH_ | -27.1 kJ/mol-atom | 1923.15 | liquid; _alloy: Ce 0.65, Si 0.35_ | model | [2] Gröbner 2004 | Table VIII, p. 11, row 16; `ORC-IVZDCJNU66.fcf6cd` |  |
| Enthalpy of mixing; _printed: ΔH_ | -30.4 kJ/mol-atom | 1923.15 | liquid; _alloy: Ce 0.85, Si 0.15_ | experimental | [2] Gröbner 2004; _cites Ryss 1977_ | Table VIII, p. 11, row 7; `ORC-JYDIQHVZJY.f37290` |  |
| Enthalpy of mixing; _printed: ΔH_ | -63.3 kJ/mol-atom | 1923.15 | liquid; _alloy: Ce 0.65, Si 0.35_ | experimental | [2] Gröbner 2004; _cites Ryss 1977_ | Table VIII, p. 11, row 15; `ORC-KIXZE5BPYE.59471c` |  |
| Enthalpy of mixing; _printed: ΔH_ | -27.04 kJ/mol-atom | 1923.15 | liquid; _alloy: Ce 0.6, Si 0.4_ | model | [2] Gröbner 2004 | Table VIII, p. 11, row 18; `ORC-MDVKI5CEM2.834c02` |  |
| Enthalpy of mixing; _printed: ΔH_ | -73.75 kJ/mol-atom | 1923.15 | liquid; _alloy: Ce 0.45, Si 0.55_ | experimental | [2] Gröbner 2004; _cites Ryss 1977_ | Table VIII, p. 11, row 25; `ORC-MFOH2OTVBL.636837` |  |
| Enthalpy of mixing; _printed: ΔH_ | -2 kJ/mol-atom | 1923.15 | liquid; _alloy: Ce 0.05, Si 0.95_ | model | [2] Gröbner 2004 | Table VIII, p. 11, row 46; `ORC-NJ7MIM3AKA.07836a` |  |
| Enthalpy of mixing; _printed: ΔH_ | -68.4 kJ/mol-atom | 1923.15 | liquid; _alloy: Ce 0.6, Si 0.4_ | experimental | [2] Gröbner 2004; _cites Ryss 1977_ | Table VIII, p. 11, row 17; `ORC-NYIK7ROSS3.95f086` |  |
| Enthalpy of mixing; _printed: ΔH_ | -52.3 kJ/mol-atom | 1923.15 | liquid; _alloy: Ce 0.25, Si 0.75_ | experimental | [2] Gröbner 2004; _cites Ryss 1977_ | Table VIII, p. 11, row 33; `ORC-O6T27EECUR.ffd08b` |  |
| Enthalpy of mixing; _printed: ΔH_ | -20.5 kJ/mol-atom | 1923.15 | liquid; _alloy: Ce 0.9, Si 0.1_ | experimental | [2] Gröbner 2004; _cites Ryss 1977_ | Table VIII, p. 11, row 5; `ORC-OD5K4D3P6X.130eed` |  |
| Enthalpy of mixing; _printed: ΔH_ | -60.2 kJ/mol-atom | 1923.15 | liquid; _alloy: Ce 0.3, Si 0.7_ | experimental | [2] Gröbner 2004; _cites Ryss 1977_ | Table VIII, p. 11, row 31; `ORC-OMOESPRYC6.94d9f9` |  |
| Enthalpy of mixing; _printed: ΔH_ | -12.8 kJ/mol-atom | 1923.15 | liquid; _alloy: Ce 0.25, Si 0.75_ | model | [2] Gröbner 2004 | Table VIII, p. 11, row 34; `ORC-P6BUQGUDCD.542181` |  |
| Enthalpy of mixing; _printed: ΔH_ | -9.9 kJ/mol-atom | 1923.15 | liquid; _alloy: Ce 0.2, Si 0.8_ | model | [2] Gröbner 2004 | Table VIII, p. 11, row 37; `ORC-PQ42CIC557.c0550e` |  |
| Enthalpy of mixing; _printed: ΔH_ | -48.6 kJ/mol-atom | 1923.15 | liquid; _alloy: Ce 0.75, Si 0.25_ | experimental | [2] Gröbner 2004; _cites Ryss 1977_ | Table VIII, p. 11, row 11; `ORC-PQZF6Q43FE.d97fd0` |  |
| Enthalpy of mixing; _printed: ΔH_ | -18.4 kJ/mol-atom | 1923.15 | liquid; _alloy: Ce 0.85, Si 0.15_ | model | [2] Gröbner 2004 | Table VIII, p. 11, row 8; `ORC-QHUP23G423.74d7e8` |  |
| Enthalpy of mixing; _printed: ΔH_ | -10.3 kJ/mol-atom | 1923.15 | liquid; _alloy: Ce 0.95, Si 0.05_ | experimental | [2] Gröbner 2004; _cites Ryss 1977_ | Table VIII, p. 11, row 3; `ORC-QN4HS7ABC5.c2b9e4` |  |
| Enthalpy of mixing; _printed: ΔH_ | -7.5 kJ/mol-atom | 1923.15 | liquid; _alloy: Ce 0.95, Si 0.05_ | model | [2] Gröbner 2004 | Table VIII, p. 11, row 4; `ORC-SRCS7D3CLK.abcf12` |  |
| Enthalpy of mixing; _printed: ΔH_ | -66.7 kJ/mol-atom | 1923.15 | liquid; _alloy: Ce 0.35, Si 0.65_ | experimental | [2] Gröbner 2004; _cites Ryss 1977_ | Table VIII, p. 11, row 29; `ORC-TLCMGKP5PW.64b35b` |  |
| Enthalpy of mixing; _printed: ΔH_ | -74 kJ/mol-atom | 1923.15 | liquid; _alloy: Ce 0.48, Si 0.52_ | experimental | [2] Gröbner 2004; _cites Ryss 1977_ | Table VIII, p. 11, row 23; `ORC-TQ3PMQLINS.473bdc` |  |
| Enthalpy of mixing; _printed: ΔH_ | -22.8 kJ/mol-atom | 1923.15 | liquid; _alloy: Ce 0.1, Si 0.9_ | experimental | [2] Gröbner 2004; _cites Ryss 1977_ | Table VIII, p. 11, row 41; `ORC-W7QKNYCF5B.516144` |  |
| Enthalpy of mixing; _printed: ΔH_ | -4.4 kJ/mol-atom | 1923.15 | liquid; _alloy: Ce 0.1, Si 0.9_ | model | [2] Gröbner 2004 | Table VIII, p. 11, row 43; `ORC-WB3ZUG3WTP.f56ed1` |  |
| Enthalpy of mixing; _printed: ΔH_ | -24.3 kJ/mol-atom | 1923.15 | liquid; _alloy: Ce 0.48, Si 0.52_ | model | [2] Gröbner 2004 | Table VIII, p. 11, row 24; `ORC-WWLIGUWMYR.941944` |  |
| Enthalpy of mixing; _printed: ΔH_ | -18.4 kJ/mol-atom | 1923.15 | liquid; _alloy: Ce 0.35, Si 0.65_ | model | [2] Gröbner 2004 | Table VIII, p. 11, row 30; `ORC-XE3MV4GHUI.3ae41d` |  |
| Enthalpy of mixing; _printed: ΔH_ | -26.3 kJ/mol-atom | 1923.15 | liquid; _alloy: Ce 0.7, Si 0.3_ | model | [2] Gröbner 2004 | Table VIII, p. 11, row 14; `ORC-XWQGCKTD5H.2926fb` |  |
| Enthalpy of mixing; _printed: ΔH_ | -39.8 kJ/mol-atom | 1923.15 | liquid; _alloy: Ce 0.8, Si 0.2_ | experimental | [2] Gröbner 2004; _cites Ryss 1977_ | Table VIII, p. 11, row 9; `ORC-YBDLHBNMS7.a9afbb` |  |

## Sources

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

1. Dandan Huang, Shuhong Liu, Ying Tang, Yong Du, Philip Nash, Bo Sundman, Experimental investigation and thermodynamic modeling of the Ce-Si system, Thermochimica Acta 646, 49-58 (2016). [doi:10.1016/j.tca.2016.11.003](https://doi.org/10.1016/j.tca.2016.11.003)
2. Joachim Gröbner, Djordje Mirković, Rainer Schmid-Fetzer, Thermodynamic aspects of the constitution, grain refining, and solidification enthalpies of Al-Ce-Si alloys, Metall Mater Trans A 35, 3349-3362 (2004). [doi:10.1007/s11661-004-0172-y](https://doi.org/10.1007/s11661-004-0172-y)

## 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/).