# Si–Yb system

> Si–Yb system: 145 accepted literature values (phase transition 41, formation 31, invariant reaction 24, phase equilibrium 21) and 1 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote.

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

145 accepted literature values from 1 paper(s) (experimental 119, model 26); 1 calculated phase diagram(s). 4 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/SI-YB.json) · [CSV](https://data.orchid-project.org/systems/SI-YB.csv) · [interactive explorer](https://orchid-project.org/data-explorer/#SI-YB) · [interactive phase diagram](https://orchid-project.org/phase-diagrams/#SI-YB/SiYb-05Bru.json) · [phases (11)](https://data.orchid-project.org/phases/pages/SI-YB.html) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/SI-YB.html) · [Markdown](https://data.orchid-project.org/systems/SI-YB.md)

Table: Accepted values by evidence class

| Evidence class | Values |
|---|---:|
| experimental | 119 |
| model | 26 |

Table: Accepted values by property group

| Property group | Values |
|---|---:|
| invariant reaction | 24 |
| phase transition | 41 |
| phase equilibrium | 21 |
| formation | 31 |
| activity / EMF / Gibbs energy | 13 |
| crystal structure | 15 |

## 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 |
|---|---|---|---|
| SiYb-05Bru.tdb | S. Brutti, G. Balducci, A. Ciccioli, G. Gigli, Calphad, 29, 254-61(2005). [doi:10.1016/j.calphad.2005.06.004](https://doi.org/10.1016/j.calphad.2005.06.004) | `69e87e54956cef3f47a527fadca0e24fd69d4f4395f485c17160e37ca5bab7ee` | [viewer](https://orchid-project.org/phase-diagrams/#SI-YB/SiYb-05Bru.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/SiYb-05Bru.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/SiYb-05Bru.json) |

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

| TDB file | T (K) | Phases at the invariant |
|---|---:|---|
| SiYb-05Bru.tdb | 1939.13 | SIYB_B27 (x(Yb) 0.5) + SI4YB5 (x(Yb) 0.55556) + LIQUID (x(Yb) 0.56069) |
| SiYb-05Bru.tdb | 1939.13 | SIYB_B27 (x(Yb) 0.5) + SI4YB5 (x(Yb) 0.55556) + LIQUID (x(Yb) 0.56096) |
| SiYb-05Bru.tdb | 1890.67 | SI4YB5 (x(Yb) 0.55556) + SI3YB5_D88 (x(Yb) 0.625) + LIQUID (x(Yb) 0.64978) |
| SiYb-05Bru.tdb | 1890.67 | SI4YB5 (x(Yb) 0.55556) + SI3YB5_D88 (x(Yb) 0.625) + LIQUID (x(Yb) 0.65006) |
| SiYb-05Bru.tdb | 1890.67 | SI4YB5 (x(Yb) 0.55556) + SI3YB5_D88 (x(Yb) 0.625) + LIQUID (x(Yb) 0.64972) |
| SiYb-05Bru.tdb | 1890.67 | SI4YB5 (x(Yb) 0.55556) + SI3YB5_D88 (x(Yb) 0.625) + LIQUID (x(Yb) 0.65006) |
| SiYb-05Bru.tdb | 1676.97 | LIQUID (x(Yb) 0.28795) + SI2YB_C32 (x(Yb) 0.36496) + SIYB_B27 (x(Yb) 0.5) |
| SiYb-05Bru.tdb | 1676.97 | LIQUID (x(Yb) 0.28769) + SI2YB_C32 (x(Yb) 0.36496) + SIYB_B27 (x(Yb) 0.5) |
| SiYb-05Bru.tdb | 1439.32 | DIAMOND_A4 (x(Yb) 0) + LIQUID (x(Yb) 0.15644) + SI2YB_C32 (x(Yb) 0.36496) |
| SiYb-05Bru.tdb | 1439.32 | DIAMOND_A4 (x(Yb) 0) + LIQUID (x(Yb) 0.15625) + SI2YB_C32 (x(Yb) 0.36496) |
| SiYb-05Bru.tdb | 1257.13 | SI2YB_C32 (x(Yb) 0.36496) + SI11YB8 (x(Yb) 0.42105) + SIYB_B27 (x(Yb) 0.5) |
| SiYb-05Bru.tdb | 1241.98 | SI2YB_C32 (x(Yb) 0.36496) + SI5YB3 (x(Yb) 0.375) + SI11YB8 (x(Yb) 0.42105) |
| SiYb-05Bru.tdb | 1096.2 | SI3YB5_D88 (x(Yb) 0.625) + LIQUID (x(Yb) 0.99939) + BCC_A2 (x(Yb) 1) |
| SiYb-05Bru.tdb | 1096.2 | SI3YB5_D88 (x(Yb) 0.625) + LIQUID (x(Yb) 0.99939) + BCC_A2 (x(Yb) 1) |
| SiYb-05Bru.tdb | 1096.2 | SI3YB5_D88 (x(Yb) 0.625) + LIQUID (x(Yb) 0.99939) + BCC_A2 (x(Yb) 1) |
| SiYb-05Bru.tdb | 1034.45 | DIAMOND_A4 (x(Yb) 0) + SI2YB_C32 (x(Yb) 0.36496) + SI5YB3 (x(Yb) 0.375) |
| SiYb-05Bru.tdb | 1033 | SI3YB5_D88 (x(Yb) 0.625) + FCC_A1 (x(Yb) 1) + BCC_A2 (x(Yb) 1) |

Convex hulls: [OQMD DFT hull](https://data.orchid-project.org/hulls/dft-oqmd/SI/SI-YB.json)

## Invariant reactions (literature)

Table: Invariant reactions reported in the literature for the Si–Yb system (24)

| T (K) | Reaction / phases | Compositions (mole fraction) | Class | Source | Location | Quote |
|---:|---|---|---|---|---|---|
| 1983 | other: L = YbSi | L: Si 0.5, Yb 0.5; YbSi: Si 0.5, Yb 0.5 | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 5, p. 6, row 10; `ORC-DENOJNWM7P` |  |
| 1974 | other: L = YbSi | L: Si 0.5, Yb 0.5; YbSi: Si 0.5, Yb 0.5 | model | [1] Brutti 2005 | Table 5, p. 6, row 9; `ORC-VBOK22QMX6` |  |
| 1954 | other: L + Yb5Si4 = YbSi | Yb5Si4: Si 0.444444, Yb 0.555556; YbSi: Si 0.5, Yb 0.5 | model | [1] Brutti 2005 | Table 5, p. 6, row 7; `ORC-BHEE2M4PMQ` |  |
| 1953 | other: L + Yb5Si4 = YbSi | Yb5Si4: Si 0.444444, Yb 0.555556; YbSi: Si 0.5, Yb 0.5 | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 5, p. 6, row 8; `ORC-PD4NJQ5QS7` |  |
| 1907 | other: L + Yb5Si4 = Yb5Si3 | Yb5Si4: Si 0.444444, Yb 0.555556; Yb5Si3: Si 0.375, Yb 0.625 | model | [1] Brutti 2005 | Table 5, p. 6, row 5; `ORC-JBQ7JXL3G5` |  |
| 1903 | other: L + Yb5Si4 = Yb5Si3 | Yb5Si4: Si 0.444444, Yb 0.555556; Yb5Si3: Si 0.375, Yb 0.625 | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 5, p. 6, row 6; `ORC-SB5FJPVLAG` |  |
| 1698 | other: L + YbSi = YbSi1.74 | YbSi: Si 0.5, Yb 0.5; YbSi1.74: Si 0.635036, Yb 0.364964 | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 5, p. 6, row 12; `ORC-ACUWGM4BHF` |  |
| 1681 | other: L + YbSi = YbSi1.74 | YbSi: Si 0.5, Yb 0.5; YbSi1.74: Si 0.635036, Yb 0.364964 | experimental | [1] Brutti 2005; _cites Grytsiv 2002_ [doi](https://doi.org/10.1006/jssc.2001.9390) | Table 5, p. 6, row 13; `ORC-6MEZIKBSK5` |  |
| 1681 | other: L + YbSi = YbSi1.74 | YbSi: Si 0.5, Yb 0.5; YbSi1.74: Si 0.635036, Yb 0.364964 | model | [1] Brutti 2005 | Table 5, p. 6, row 11; `ORC-A2PIEBDXUC` |  |
| 1440 | eutectic: L = Si + YbSi1.74 | L: Si 0.844; YbSi1.74: Si 0.635036, Yb 0.364964 | model | [1] Brutti 2005 | Table 5, p. 6, row 14; `ORC-35SQ5KNPGI` |  |
| 1418 | eutectic: L = Si + YbSi1.74 | L: Si 0.81; YbSi1.74: Si 0.635036, Yb 0.364964 | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 5, p. 6, row 15; `ORC-B5SVBUGXI5` |  |
| 1408 | eutectic: L = Si + YbSi1.74 | L: Si 0.806; YbSi1.74: Si 0.635036, Yb 0.364964 | experimental | [1] Brutti 2005; _cites Grytsiv 2002_ [doi](https://doi.org/10.1006/jssc.2001.9390) | Table 5, p. 6, row 16; `ORC-YM6DO65V7J` |  |
| 1261 | peritectoid: YbSi1.74 + YbSi = Yb8Si11 | YbSi1.74: Si 0.635036, Yb 0.364964; YbSi: Si 0.5, Yb 0.5; Yb8Si11: Si 0.578947, Yb 0.421053 | experimental | [1] Brutti 2005; _cites Brutti 2003_ [doi](https://doi.org/10.1016/s0966-9795%2803%2900152-3) | Table 5, p. 6, row 19; `ORC-YNADLEQHZ2` |  |
| 1259 | peritectoid: YbSi1.74 + YbSi = Yb8Si11 | YbSi1.74: Si 0.635036, Yb 0.364964; YbSi: Si 0.5, Yb 0.5; Yb8Si11: Si 0.578947, Yb 0.421053 | model | [1] Brutti 2005 | Table 5, p. 6, row 17; `ORC-3SY5YEXFKV` |  |
| 1253 | peritectoid: YbSi1.74 + YbSi = Yb8Si11 | YbSi1.74: Si 0.635036, Yb 0.364964; YbSi: Si 0.5, Yb 0.5; Yb8Si11: Si 0.578947, Yb 0.421053 | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 5, p. 6, row 18; `ORC-IJEOVW72TS` |  |
| 1252 | peritectoid: Yb8Si11 + YbSi1.74 = Yb3Si5 | Yb8Si11: Si 0.578947, Yb 0.421053; YbSi1.74: Si 0.635036, Yb 0.364964; Yb3Si5: Si 0.625, Yb 0.375 | experimental | [1] Brutti 2005; _cites Brutti 2003_ [doi](https://doi.org/10.1016/s0966-9795%2803%2900152-3) | Table 5, p. 6, row 22; `ORC-VSU5SPBJPC` |  |
| 1243 | peritectoid: Yb8Si11 + YbSi1.74 = Yb3Si5 | Yb8Si11: Si 0.578947, Yb 0.421053; YbSi1.74: Si 0.635036, Yb 0.364964; Yb3Si5: Si 0.625, Yb 0.375 | model | [1] Brutti 2005 | Table 5, p. 6, row 20; `ORC-KTXJ3J4FSW` |  |
| 1238 | peritectoid: Yb8Si11 + YbSi1.74 = Yb3Si5 | Yb8Si11: Si 0.578947, Yb 0.421053; YbSi1.74: Si 0.635036, Yb 0.364964; Yb3Si5: Si 0.625, Yb 0.375 | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 5, p. 6, row 21; `ORC-MG4MZ4KRPJ` |  |
| 1096 | eutectic: L = Yb(bcc) + Yb5Si3 | L: Si 0.001; Yb5Si3: Si 0.375, Yb 0.625 | model | [1] Brutti 2005 | Table 5, p. 6, row 3; `ORC-CAAF4NIQA6` |  |
| 1088 | eutectic: L = Yb(bcc) + Yb5Si3 | Yb5Si3: Si 0.375, Yb 0.625 | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 5, p. 6, row 4; `ORC-MKIO3K2QDJ` |  |
| 1056 | eutectoid: YbSi1.74 = Yb3Si5 + Si | YbSi1.74: Si 0.635036, Yb 0.364964; Yb3Si5: Si 0.625, Yb 0.375 | experimental | [1] Brutti 2005; _cites Brutti 2003_ [doi](https://doi.org/10.1016/s0966-9795%2803%2900152-3) | Table 5, p. 6, row 26; `ORC-WXP52I5YDY` |  |
| 1043 | eutectoid: YbSi1.74 = Yb3Si5 + Si | YbSi1.74: Si 0.635036, Yb 0.364964; Yb3Si5: Si 0.625, Yb 0.375 | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 5, p. 6, row 24; `ORC-ZNFIXO4DF6` |  |
| 1036 | eutectoid: YbSi1.74 = Yb3Si5 + Si | YbSi1.74: Si 0.635036, Yb 0.364964; Yb3Si5: Si 0.625, Yb 0.375 | experimental | [1] Brutti 2005; _cites Grytsiv 2002_ [doi](https://doi.org/10.1006/jssc.2001.9390) | Table 5, p. 6, row 25; `ORC-TL52LPCS6D` |  |
| 1036 | eutectoid: YbSi1.74 = Yb3Si5 + Si | YbSi1.74: Si 0.635036, Yb 0.364964; Yb3Si5: Si 0.625, Yb 0.375 | model | [1] Brutti 2005 | Table 5, p. 6, row 23; `ORC-VCBTBD2OZP` |  |

## 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, Si–Yb system (14)

| Phase | Compound | Value | T (K) | Class | MP DFT (kJ/mol-atom) | OQMD DFT (kJ/mol-atom) | Source | Location | Quote |
|---|---|---:|---:|---|---:|---:|---|---|---|
| Yb3Si11 |  | -49.1 kJ/mol-atom | 298.15 | model |  |  | [1] Brutti 2005 | Table 6, p. 7, row 9; `ORC-SQXXJQONU6.8888e0` |  |
| Yb3Si11 |  | -48 kJ/mol-atom ± 3.1 | 298.15 | experimental |  |  | [1] Brutti 2005; _cites Brutti 2003_ [doi](https://doi.org/10.1016/s0966-9795%2803%2900152-3) | Table 6, p. 7, row 10; `ORC-IMUKKQP2HM.bab35b` |  |
| Yb3Si5 | [Si5Yb3](https://data.orchid-project.org/compounds/Si5Yb3.html) | -45 kJ/mol-atom | 298.15 | model |  | -40.886 (oqmd-646768) | [1] Brutti 2005 | Table 6, p. 7, row 11; `ORC-Y3467HFFVN.b8cb6e` |  |
| Yb3Si5 | [Si5Yb3](https://data.orchid-project.org/compounds/Si5Yb3.html) | -41.3 kJ/mol-atom ± 2.6 | 298.15 | experimental |  | -40.886 (oqmd-646768) | [1] Brutti 2005; _cites Brutti 2003_ [doi](https://doi.org/10.1016/s0966-9795%2803%2900152-3) | Table 6, p. 7, row 12; `ORC-LCHDNP4URT.46b2e6` |  |
| Yb5Si3 | [Si3Yb5](https://data.orchid-project.org/compounds/Si3Yb5.html) | -49.8 kJ/mol-atom | 298.15 | model |  | -47.727 (oqmd-1437174) | [1] Brutti 2005 | Table 6, p. 7, row 1; `ORC-7R5RIVEM5Z.d2992b` |  |
| Yb5Si3 | [Si3Yb5](https://data.orchid-project.org/compounds/Si3Yb5.html) | -48.3 kJ/mol-atom ± 3.6 | 298.15 | experimental |  | -47.727 (oqmd-1437174) | [1] Brutti 2005; _cites Brutti 2003_ [doi](https://doi.org/10.1016/s0966-9795%2803%2900152-3) | Table 6, p. 7, row 2; `ORC-5JLYA7TSHI.2c4fd9` |  |
| Yb5Si4 | [Si4Yb5](https://data.orchid-project.org/compounds/Si4Yb5.html) | -53.2 kJ/mol-atom ± 4.6 | 298.15 | experimental |  | -45.285 (oqmd-19744) | [1] Brutti 2005; _cites Brutti 2003_ [doi](https://doi.org/10.1016/s0966-9795%2803%2900152-3) | Table 6, p. 7, row 4; `ORC-N6RXSPOU7I.c18e4e` |  |
| Yb5Si4 | [Si4Yb5](https://data.orchid-project.org/compounds/Si4Yb5.html) | -51.1 kJ/mol-atom | 298.15 | model |  | -45.285 (oqmd-19744) | [1] Brutti 2005 | Table 6, p. 7, row 3; `ORC-KIVT5CBN7U.85e60c` |  |
| Yb8Si11 | [Si11Yb8](https://data.orchid-project.org/compounds/Si11Yb8.html) | -49.1 kJ/mol-atom | 298.15 | model |  | -46.119 (oqmd-19800) | [1] Brutti 2005 | Table 6, p. 7, row 9; `ORC-SQXXJQONU6.42c00b` |  |
| Yb8Si11 | [Si11Yb8](https://data.orchid-project.org/compounds/Si11Yb8.html) | -48 kJ/mol-atom ± 3.1 | 298.15 | experimental |  | -46.119 (oqmd-19800) | [1] Brutti 2005; _cites Brutti 2003_ [doi](https://doi.org/10.1016/s0966-9795%2803%2900152-3) | Table 6, p. 7, row 10; `ORC-IMUKKQP2HM.a5dccb` |  |
| YbSi | [SiYb](https://data.orchid-project.org/compounds/SiYb.html) | -51.1 kJ/mol-atom ± 5.1 | 298.15 | experimental |  | -54.503 (oqmd-646927) | [1] Brutti 2005; _cites Brutti 2003_ [doi](https://doi.org/10.1016/s0966-9795%2803%2900152-3) | Table 6, p. 7, row 7; `ORC-NBVCD3AWCO.5f3a9a` |  |
| YbSi | [SiYb](https://data.orchid-project.org/compounds/SiYb.html) | -51 kJ/mol-atom | 298.15 | model |  | -54.503 (oqmd-646927) | [1] Brutti 2005 | Table 6, p. 7, row 6; `ORC-TXHXLMW4C6.e17668` |  |
| YbSi1.74 |  | -41.1 kJ/mol-atom | 298.15 | model |  |  | [1] Brutti 2005 | Table 6, p. 7, row 14; `ORC-RF4ARV2TWA.98739d` |  |
| YbSi1.74 |  | -37.4 kJ/mol-atom ± 0.9 | 298.15 | experimental |  |  | [1] Brutti 2005; _cites Brutti 2003_ [doi](https://doi.org/10.1016/s0966-9795%2803%2900152-3) | Table 6, p. 7, row 15; `ORC-F6QZLKXH6T.6d5b62` |  |

## Other properties

### Phase transition (41)

Table: Phase transition, Si–Yb system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Phase transition | 1023 K | 1023 | eutectoid: YbSi1.74 = Yb3Si5 + Si; _alloy: Si 0.87, Yb 0.13_ | experimental | [1] Brutti 2005; _cites Grytsiv 2002_ [doi](https://doi.org/10.1006/jssc.2001.9390) | Table 2, p. 3, row 63; `ORC-76GYBE7QMU` |  |
| Phase transition | 1033 K | 1033 | eutectoid: YbSi1.74 = Yb3Si5 + Si; _alloy: Si 0.66, Yb 0.34_ | experimental | [1] Brutti 2005; _cites Grytsiv 2002_ [doi](https://doi.org/10.1006/jssc.2001.9390) | Table 2, p. 3, row 61; `ORC-NY6MDUWNUH` |  |
| Phase transition | 1038 K | 1038 | eutectoid: YbSi1.74 = Yb3Si5 + Si; _alloy: Si 0.65, Yb 0.35_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 2, p. 3, row 31; `ORC-ASFYMTK27K` |  |
| Phase transition | 1038 K | 1038 | eutectoid: YbSi1.74 = Yb3Si5 + Si; _alloy: Si 0.64, Yb 0.36_ | experimental | [1] Brutti 2005; _cites Grytsiv 2002_ [doi](https://doi.org/10.1006/jssc.2001.9390) | Table 2, p. 3, row 60; `ORC-EPBBI634GK` |  |
| Phase transition | 1038 K | 1038 | eutectoid: YbSi1.74 = Yb3Si5 + Si; _alloy: Si 0.7, Yb 0.3_ | experimental | [1] Brutti 2005; _cites Grytsiv 2002_ [doi](https://doi.org/10.1006/jssc.2001.9390) | Table 2, p. 3, row 62; `ORC-QBLZD6MWFH` |  |
| Phase transition | 1043 K | 1043 | eutectoid: YbSi1.74 = Yb3Si5 + Si; _alloy: Si 0.7, Yb 0.3_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 2, p. 3, row 32; `ORC-FBV7HVL2KT` |  |
| Phase transition | 1043 K | 1043 | eutectoid: YbSi1.74 = Yb3Si5 + Si; _alloy: Si 0.8, Yb 0.2_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 2, p. 3, row 33; `ORC-NI5IVJRWY5` |  |
| Phase transition | 1053 K | 1053 | polymorphic: Yb(bcc) = Yb(fcc); _alloy: Si 0.25, Yb 0.75_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 2, p. 3, row 43; `ORC-7BNPF5IX4S` |  |
| Phase transition | 1053 K | 1053 | polymorphic: Yb(bcc) = Yb(fcc); _alloy: Si 0.2, Yb 0.8_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 2, p. 3, row 42; `ORC-LWQJ3KSA3C` |  |
| Phase transition | 1053 K | 1053 | polymorphic: Yb(bcc) = Yb(fcc); _alloy: Si 0.1, Yb 0.9_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 2, p. 3, row 41; `ORC-TRHJFGCZMN` |  |
| Phase transition | 1053 K | 1053 | polymorphic: Yb(bcc) = Yb(fcc); _alloy: Si 0.35, Yb 0.65_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 2, p. 3, row 45; `ORC-VMDEWXQPZA` |  |
| Phase transition | 1053 K | 1053 | polymorphic: Yb(bcc) = Yb(fcc); _alloy: Si 0.3, Yb 0.7_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 2, p. 3, row 44; `ORC-YAK7JO76NF` |  |
| Phase transition | 1085 K | 1085 | eutectic: Liquid = Yb(fcc) + Yb5Si3; _alloy: Si 0.3, Yb 0.7_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 2, p. 3, row 38; `ORC-G5B2YG3WG6` |  |
| Phase transition | 1086 K | 1086 | eutectic: Liquid = Yb(fcc) + Yb5Si3; _alloy: Si 0.15, Yb 0.85_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 2, p. 3, row 36; `ORC-VSJIEU3E6E` |  |
| Phase transition | 1087 K | 1087 | eutectic: Liquid = Yb(fcc) + Yb5Si3; _alloy: Si 0.35, Yb 0.65_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 2, p. 3, row 39; `ORC-YK2XI7JV4B` |  |
| Phase transition | 1088 K | 1088 | eutectic: Liquid = Yb(fcc) + Yb5Si3; _alloy: Si 0.2, Yb 0.8_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 2, p. 3, row 37; `ORC-7TSPRDJBIA` |  |
| Phase transition | 1088 K | 1088 | eutectic: Liquid = Yb(fcc) + Yb5Si3 | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 2, p. 3, row 35; `ORC-IKHHLW7KWE` |  |
| Phase transition | 1238 K | 1238 | peritectoid: Yb3Si5 = Yb8Si11 + YbSi1.74; _alloy: Si 0.625, Yb 0.375_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 2, p. 3, row 34; `ORC-SJSKRBCCHC` |  |
| Phase transition | 1243 K | 1243 | peritectoid: Yb8Si11 = YbSi + YbSi1.74; _alloy: Si 0.55, Yb 0.45_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 2, p. 3, row 28; `ORC-KPODCJKHDZ` |  |
| Phase transition | 1253 K | 1253 | peritectoid: Yb8Si11 = YbSi + YbSi1.74; _alloy: Si 0.571, Yb 0.429_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 2, p. 3, row 29; `ORC-IDVHNFAFCU` |  |
| Phase transition | 1253 K | 1253 | peritectoid: Yb8Si11 = YbSi + YbSi1.74; _alloy: Si 0.6, Yb 0.4_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 2, p. 3, row 30; `ORC-OSHLVO3SG6` |  |
| Phase transition | 1401 K | 1401 | eutectic: Liquid = YbSi1.74 + Si; _alloy: Si 0.87, Yb 0.13_ | experimental | [1] Brutti 2005; _cites Grytsiv 2002_ [doi](https://doi.org/10.1006/jssc.2001.9390) | Table 2, p. 3, row 59; `ORC-HC5ZFWW3MB` |  |
| Phase transition | 1408 K | 1408 | eutectic: Liquid = YbSi1.74 + Si; _alloy: Si 0.66, Yb 0.34_ | experimental | [1] Brutti 2005; _cites Grytsiv 2002_ [doi](https://doi.org/10.1006/jssc.2001.9390) | Table 2, p. 3, row 57; `ORC-J3ME7RNS3T` |  |
| Phase transition | 1408 K | 1408 | eutectic: Liquid = YbSi1.74 + Si; _alloy: Si 0.64, Yb 0.36_ | experimental | [1] Brutti 2005; _cites Grytsiv 2002_ [doi](https://doi.org/10.1006/jssc.2001.9390) | Table 2, p. 3, row 56; `ORC-QBDJQISLTJ` |  |
| Phase transition | 1408 K | 1408 | eutectic: Liquid = YbSi1.74 + Si; _alloy: Si 0.7, Yb 0.3_ | experimental | [1] Brutti 2005; _cites Grytsiv 2002_ [doi](https://doi.org/10.1006/jssc.2001.9390) | Table 2, p. 3, row 58; `ORC-VDJMAVIMUT` |  |
| Phase transition | 1418 K | 1418 | eutectic: Liquid = YbSi1.74 + Si; _alloy: Si 0.7, Yb 0.3_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 2, p. 3, row 26; `ORC-KTVYDRTLW6` |  |
| Phase transition | 1418 K | 1418 | eutectic: Liquid = YbSi1.74 + Si; _alloy: Si 0.8, Yb 0.2_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 2, p. 3, row 27; `ORC-NDSUU3GNYU` |  |
| Phase transition | 1421 K | 1421 | eutectic: Liquid = YbSi1.74 + Si; _alloy: Si 0.65, Yb 0.35_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 2, p. 3, row 25; `ORC-F4TM2ITGKK` |  |
| Phase transition | 1673 K | 1673 | peritectic: YbSi1.74 = Liquid + YbSi; _alloy: Si 0.66, Yb 0.34_ | experimental | [1] Brutti 2005; _cites Grytsiv 2002_ [doi](https://doi.org/10.1006/jssc.2001.9390) | Table 2, p. 3, row 55; `ORC-WXJJ4CENTS` |  |
| Phase transition | 1676 K | 1676 | peritectic: YbSi1.74 = Liquid + YbSi; _alloy: Si 0.625, Yb 0.375_ | experimental | [1] Brutti 2005; _cites Grytsiv 2002_ [doi](https://doi.org/10.1006/jssc.2001.9390) | Table 2, p. 3, row 53; `ORC-IOSCKTYY2V` |  |
| Phase transition | 1683 K | 1683 | peritectic: YbSi1.74 = Liquid + YbSi; _alloy: Si 0.65, Yb 0.35_ | experimental | [1] Brutti 2005; _cites Grytsiv 2002_ [doi](https://doi.org/10.1006/jssc.2001.9390) | Table 2, p. 3, row 54; `ORC-OO7Y4L4RLM` |  |
| Phase transition | 1688 K | 1688 | peritectic: YbSi1.74 = Liquid + YbSi; _alloy: Si 0.61, Yb 0.39_ | experimental | [1] Brutti 2005; _cites Grytsiv 2002_ [doi](https://doi.org/10.1006/jssc.2001.9390) | Table 2, p. 3, row 52; `ORC-QTFM5YE2MF` |  |
| Phase transition | 1698 K | 1698 | peritectic: Liquid + YbSi = YbSi1.74; _alloy: Si 0.65, Yb 0.35_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 2, p. 3, row 15; `ORC-CL22ICDOPF` |  |
| Phase transition | 1698 K | 1698 | peritectic: YbSi1.74 = Liquid + YbSi; _alloy: Si 0.55, Yb 0.45_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 2, p. 3, row 21; `ORC-AITOZV5AEN` |  |
| Phase transition | 1698 K | 1698 | peritectic: YbSi1.74 = Liquid + YbSi; _alloy: Si 0.625, Yb 0.375_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 2, p. 3, row 24; `ORC-AJHJYJ6Z26` |  |
| Phase transition | 1698 K | 1698 | peritectic: YbSi1.74 = Liquid + YbSi; _alloy: Si 0.6, Yb 0.4_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 2, p. 3, row 23; `ORC-EQTKGESCIV` |  |
| Phase transition | 1700 K | 1700 | peritectic: YbSi1.74 = Liquid + YbSi; _alloy: Si 0.571, Yb 0.429_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 2, p. 3, row 22; `ORC-RKCXC434EN` |  |
| Phase transition | 1903 K | 1903 | peritectic: Yb5Si3 = Liquid + Yb5Si4; _alloy: Si 0.444, Yb 0.556_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 2, p. 3, row 19; `ORC-6Q5QMRGFZT` |  |
| Phase transition | 1903 K | 1903 | peritectic: Yb5Si3 = Liquid + Yb5Si4; _alloy: Si 0.4, Yb 0.6_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 2, p. 3, row 18; `ORC-ZF3JAA2K2Z` |  |
| Phase transition | 1953 K | 1953 | peritectic: Yb5Si4 = Liquid + YbSi; _alloy: Si 0.444, Yb 0.556_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 2, p. 3, row 20; `ORC-ITNX3JFEVY` |  |
| Phase transition | 1983 K | 1983 | congruent transformation: Liquid = YbSi; _alloy: Si 0.5, Yb 0.5_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 2, p. 3, row 17; `ORC-G5HDOJDWQ6` |  |

### Phase equilibrium (21)

Table: Phase equilibrium, Si–Yb system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Phase composition |  | 1443 | other: Liquidus + Yb5Si3; _liquid: Yb 0.625_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 2, p. 3, row 1; `ORC-OCDMYFMDNM` |  |
| Phase composition |  | 1443 | other: Liquidus + Yb5Si3; _liquid: Yb 0.625_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 2, p. 3, row 2; `ORC-WJ2CYIFRM7` |  |
| Phase composition |  | 1543 | other: Liquidus + Si; _liquid: Si 0.87, Yb 0.13_ | experimental | [1] Brutti 2005; _cites Grytsiv 2002_ [doi](https://doi.org/10.1006/jssc.2001.9390) | Table 2, p. 3, row 51; `ORC-UMJMI72ZSQ` |  |
| Phase composition |  | 1612 | other: Liquidus + Yb5Si3; _liquid: Si 0.1, Yb 0.9_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 2, p. 3, row 3; `ORC-DDXKABG2G5` |  |
| Phase composition |  | 1643 | other: Liquidus + YbSi1.74; _liquid: Si 0.7, Yb 0.3_ | experimental | [1] Brutti 2005; _cites Grytsiv 2002_ [doi](https://doi.org/10.1006/jssc.2001.9390) | Table 2, p. 3, row 50; `ORC-HJIF4ZGRDE` |  |
| Phase composition |  | 1661 | other: Liquidus + YbSi1.74; _liquid: Si 0.7, Yb 0.3_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 2, p. 3, row 16; `ORC-P52H3UKPKM` |  |
| Phase composition |  | 1693 | other: Liquidus + Yb5Si3; _liquid: Si 0.15, Yb 0.85_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 2, p. 3, row 4; `ORC-LZGVU2S4IC` |  |
| Phase composition |  | 1708 | other: Liquidus + YbSi; _liquid: Si 0.66, Yb 0.34_ | experimental | [1] Brutti 2005; _cites Grytsiv 2002_ [doi](https://doi.org/10.1006/jssc.2001.9390) | Table 2, p. 3, row 49; `ORC-6QWFLCZYCG` |  |
| Phase composition |  | 1727 | other: Liquidus + YbSi; _liquid: Si 0.625, Yb 0.375_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 2, p. 3, row 14; `ORC-AJEPOVSTW2` |  |
| Phase composition |  | 1733 | other: Liquidus + YbSi; _liquid: Si 0.64, Yb 0.36_ | experimental | [1] Brutti 2005; _cites Grytsiv 2002_ [doi](https://doi.org/10.1006/jssc.2001.9390) | Table 2, p. 3, row 48; `ORC-JC35VHCFDJ` |  |
| Phase composition |  | 1733 | other: Liquidus + YbSi; _liquid: Si 0.61, Yb 0.39_ | experimental | [1] Brutti 2005; _cites Grytsiv 2002_ [doi](https://doi.org/10.1006/jssc.2001.9390) | Table 2, p. 3, row 46; `ORC-YQQ45IPSAC` |  |
| Phase composition |  | 1743 | other: Liquidus + YbSi; _liquid: Si 0.625, Yb 0.375_ | experimental | [1] Brutti 2005; _cites Grytsiv 2002_ [doi](https://doi.org/10.1006/jssc.2001.9390) | Table 2, p. 3, row 47; `ORC-GF77R42I3N` |  |
| Phase composition |  | 1785 | other: Liquidus + Yb5Si3; _liquid: Si 0.2, Yb 0.8_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 2, p. 3, row 5; `ORC-7PGZY4LG5N` |  |
| Phase composition |  | 1830 | other: Liquidus + YbSi; _liquid: Si 0.6, Yb 0.4_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 2, p. 3, row 13; `ORC-DHRK2BETQZ` |  |
| Phase composition |  | 1839 | other: Liquidus + Yb5Si3; _liquid: Si 0.25, Yb 0.75_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 2, p. 3, row 6; `ORC-AI5CENZG2B` |  |
| Phase composition |  | 1873 | other: Liquidus + Yb5Si3; _liquid: Si 0.3, Yb 0.7_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 2, p. 3, row 7; `ORC-BSGJJ7WOUJ` |  |
| Phase composition |  | 1875 | other: Liquidus + YbSi; _liquid: Si 0.571, Yb 0.429_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 2, p. 3, row 12; `ORC-SKWSP5A3RU` |  |
| Phase composition |  | 1891 | other: Liquidus + Yb5Si3; _liquid: Si 0.35, Yb 0.65_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 2, p. 3, row 8; `ORC-2Y25BM2YYX` |  |
| Phase composition |  | 1925 | other: Liquidus + YbSi; _liquid: Si 0.45, Yb 0.55_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 2, p. 3, row 11; `ORC-C4CVHC52WL` |  |
| Phase composition |  | 1936 | other: Liquidus + Yb5Si4; _liquid: Si 0.4, Yb 0.6_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 2, p. 3, row 9; `ORC-IVVU2E7GVL` |  |
| Phase composition |  | 1965 | other: Liquidus + YbSi; _liquid: Si 0.444, Yb 0.556_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 2, p. 3, row 10; `ORC-V4377CYUQK` |  |

### Formation (17)

Table: Formation, Si–Yb system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Entropy of formation; _printed: ΔfS°298_ | 3.3 J/mol-atom/K | 298.15 | Yb3Si11; _alloy: Yb 0.214286_ | experimental | [1] Brutti 2005; _cites Brutti 2003_ [doi](https://doi.org/10.1016/s0966-9795%2803%2900152-3) | Table 6, p. 7, row 10; `ORC-IMUKKQP2HM.58e758` |  |
| Entropy of formation; _printed: ΔfS°298_ | 3.9 J/mol-atom/K | 298.15 | Yb3Si11; _alloy: Yb 0.214286_ | model | [1] Brutti 2005 | Table 6, p. 7, row 9; `ORC-SQXXJQONU6.571634` |  |
| Entropy of formation; _printed: ΔfS°298_ | 5.2 J/mol-atom/K | 298.15 | Yb3Si5; _alloy: Yb 0.375_ | experimental | [1] Brutti 2005; _cites Brutti 2003_ [doi](https://doi.org/10.1016/s0966-9795%2803%2900152-3) | Table 6, p. 7, row 12; `ORC-LCHDNP4URT.d9e56e` |  |
| Entropy of formation; _printed: ΔfS°298_ | 0.4 J/mol-atom/K | 298.15 | Yb3Si5; _alloy: Yb 0.375_ | model | [1] Brutti 2005; _cites Dhar 2002_ | Table 6, p. 7, row 13; `ORC-NJMA2NRD4Y` |  |
| Entropy of formation; _printed: ΔfS°298_ | 4.2 J/mol-atom/K | 298.15 | Yb3Si5; _alloy: Yb 0.375_ | model | [1] Brutti 2005 | Table 6, p. 7, row 11; `ORC-Y3467HFFVN.343fa3` |  |
| Entropy of formation; _printed: ΔfS°298_ | 4.5 J/mol-atom/K | 298.15 | Yb5Si3; _alloy: Yb 0.625_ | experimental | [1] Brutti 2005; _cites Brutti 2003_ [doi](https://doi.org/10.1016/s0966-9795%2803%2900152-3) | Table 6, p. 7, row 2; `ORC-5JLYA7TSHI.f51426` |  |
| Entropy of formation; _printed: ΔfS°298_ | 4.2 J/mol-atom/K | 298.15 | Yb5Si3; _alloy: Yb 0.625_ | model | [1] Brutti 2005 | Table 6, p. 7, row 1; `ORC-7R5RIVEM5Z.02c17e` |  |
| Entropy of formation; _printed: ΔfS°298_ | 6.2 J/mol-atom/K | 298.15 | Yb5Si4; _alloy: Yb 0.555556_ | model | [1] Brutti 2005 | Table 6, p. 7, row 3; `ORC-KIVT5CBN7U.8acfcd` |  |
| Entropy of formation; _printed: ΔfS°298_ | 1.3 J/mol-atom/K | 298.15 | Yb5Si4; _alloy: Yb 0.555556_ | model | [1] Brutti 2005; _cites Dhar 2002_ | Table 6, p. 7, row 5; `ORC-L4OG4CHNIU` |  |
| Entropy of formation; _printed: ΔfS°298_ | 2.8 J/mol-atom/K | 298.15 | Yb5Si4; _alloy: Yb 0.555556_ | experimental | [1] Brutti 2005; _cites Brutti 2003_ [doi](https://doi.org/10.1016/s0966-9795%2803%2900152-3) | Table 6, p. 7, row 4; `ORC-N6RXSPOU7I.74d94c` |  |
| Entropy of formation; _printed: ΔfS°298_ | 3.3 J/mol-atom/K | 298.15 | Yb8Si11; _alloy: Si 0.578947, Yb 0.421053_ | experimental | [1] Brutti 2005; _cites Brutti 2003_ [doi](https://doi.org/10.1016/s0966-9795%2803%2900152-3) | Table 6, p. 7, row 10; `ORC-IMUKKQP2HM.6c3660` |  |
| Entropy of formation; _printed: ΔfS°298_ | 3.9 J/mol-atom/K | 298.15 | Yb8Si11; _alloy: Si 0.578947, Yb 0.421053_ | model | [1] Brutti 2005 | Table 6, p. 7, row 9; `ORC-SQXXJQONU6.04fffd` |  |
| Entropy of formation; _printed: ΔfS°298_ | 0.8 J/mol-atom/K | 298.15 | YbSi; _alloy: Yb 0.5_ | model | [1] Brutti 2005; _cites Dhar 2002_ | Table 6, p. 7, row 8; `ORC-6QEUCTQF5T` |  |
| Entropy of formation; _printed: ΔfS°298_ | 4.9 J/mol-atom/K | 298.15 | YbSi; _alloy: Yb 0.5_ | experimental | [1] Brutti 2005; _cites Brutti 2003_ [doi](https://doi.org/10.1016/s0966-9795%2803%2900152-3) | Table 6, p. 7, row 7; `ORC-NBVCD3AWCO.afcc31` |  |
| Entropy of formation; _printed: ΔfS°298_ | 7.4 J/mol-atom/K | 298.15 | YbSi; _alloy: Yb 0.5_ | model | [1] Brutti 2005 | Table 6, p. 7, row 6; `ORC-TXHXLMW4C6.4c9e08` |  |
| Entropy of formation; _printed: ΔfS°298_ | 7.6 J/mol-atom/K | 298.15 | YbSi1.74; _alloy: Yb 0.364964_ | experimental | [1] Brutti 2005; _cites Brutti 2003_ [doi](https://doi.org/10.1016/s0966-9795%2803%2900152-3) | Table 6, p. 7, row 15; `ORC-F6QZLKXH6T.04c2c8` |  |
| Entropy of formation; _printed: ΔfS°298_ | 6.7 J/mol-atom/K | 298.15 | YbSi1.74; _alloy: Yb 0.364964_ | model | [1] Brutti 2005 | Table 6, p. 7, row 14; `ORC-RF4ARV2TWA.409218` |  |

### Activity / EMF / Gibbs energy (13)

Table: Activity / EMF / Gibbs energy, Si–Yb system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Activity Yb; _printed: Yb activity_ | 1.400e-5 1 | 1421 | YbSi1.74 + liquid solution; _alloy: Si 0.65, Yb 0.35_ | experimental | [1] Brutti 2005 | Table 3, p. 4, row 2; `ORC-I2L3Z6SKK5` |  |
| Activity Yb; _printed: Yb activity_ | 5.200e-5 1 | 1424 | YbSi1.74 + liquid solution; _alloy: Si 0.65, Yb 0.35_ | experimental | [1] Brutti 2005 | Table 3, p. 4, row 7; `ORC-BPLZDLIEP5` |  |
| Activity Yb; _printed: Yb activity_ | 1.100e-5 1 | 1432 | YbSi1.74 + liquid solution; _alloy: Si 0.65, Yb 0.35_ | experimental | [1] Brutti 2005 | Table 3, p. 4, row 1; `ORC-4TVP4HBZ2O` |  |
| Activity Yb; _printed: Yb activity_ | 1.200e-5 1 | 1434 | YbSi1.74 + liquid solution; _alloy: Si 0.65, Yb 0.35_ | experimental | [1] Brutti 2005 | Table 3, p. 4, row 8; `ORC-4EWTYH6BJ4` |  |
| Activity Yb; _printed: Yb activity_ | 1.400e-5 1 | 1449 | YbSi1.74 + liquid solution; _alloy: Si 0.65, Yb 0.35_ | experimental | [1] Brutti 2005 | Table 3, p. 4, row 13; `ORC-BC4WVDIJLJ` |  |
| Activity Yb; _printed: Yb activity_ | 1.200e-5 1 | 1450 | YbSi1.74 + liquid solution; _alloy: Si 0.65, Yb 0.35_ | experimental | [1] Brutti 2005 | Table 3, p. 4, row 3; `ORC-XCLKWKHUB7` |  |
| Activity Yb; _printed: Yb activity_ | 8.500e-5 1 | 1456 | YbSi1.74 + liquid solution; _alloy: Si 0.65, Yb 0.35_ | experimental | [1] Brutti 2005 | Table 3, p. 4, row 6; `ORC-UO5WU2Q7IS` |  |
| Activity Yb; _printed: Yb activity_ | 2.000e-5 1 | 1465 | YbSi1.74 + liquid solution; _alloy: Si 0.65, Yb 0.35_ | experimental | [1] Brutti 2005 | Table 3, p. 4, row 9; `ORC-BSLAZ5JSD2` |  |
| Activity Yb; _printed: Yb activity_ | 2.300e-5 1 | 1484 | YbSi1.74 + liquid solution; _alloy: Si 0.65, Yb 0.35_ | experimental | [1] Brutti 2005 | Table 3, p. 4, row 12; `ORC-ZTRTSJJ4B2` |  |
| Activity Yb; _printed: Yb activity_ | 1.300e-5 1 | 1485 | YbSi1.74 + liquid solution; _alloy: Si 0.65, Yb 0.35_ | experimental | [1] Brutti 2005 | Table 3, p. 4, row 4; `ORC-E2AP7IHQB7` |  |
| Activity Yb; _printed: Yb activity_ | 1.500e-5 1 | 1493 | YbSi1.74 + liquid solution; _alloy: Si 0.65, Yb 0.35_ | experimental | [1] Brutti 2005 | Table 3, p. 4, row 5; `ORC-ARSXBWSNYK` |  |
| Activity Yb; _printed: Yb activity_ | 3.200e-5 1 | 1500 | YbSi1.74 + liquid solution; _alloy: Si 0.65, Yb 0.35_ | experimental | [1] Brutti 2005 | Table 3, p. 4, row 10; `ORC-6IHQHNW4OZ` |  |
| Activity Yb; _printed: Yb activity_ | 3.500e-5 1 | 1512 | YbSi1.74 + liquid solution; _alloy: Si 0.65, Yb 0.35_ | experimental | [1] Brutti 2005 | Table 3, p. 4, row 11; `ORC-HE5K2GMT4J` |  |

### Crystal structure (15)

Table: Crystal structure, Si–Yb system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Lattice a | 6.515 Å ± 0.001 | 298.15 | Yb3Si5; _alloy: Yb 0.375_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 1, p. 2, row 5; `ORC-GJY3Z5FHL4.4b17ca` |  |
| Lattice a | 8.264 Å ± 0.001 | 298.15 | Yb5Si3; _alloy: Yb 0.625_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 1, p. 2, row 1; `ORC-OAGKYHPBIF.6dce69` |  |
| Lattice a | 7.262 Å ± 0.002 | 298.15 | Yb5Si4; _alloy: Yb 0.555556_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 1, p. 2, row 2; `ORC-3DSMASMF3N.d37723` |  |
| Lattice a | 4.16 Å | 298.15 | Yb8Si11; _alloy: Yb 0.421053_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 1, p. 2, row 4; `ORC-547GJZJDQP.7d23bc` |  |
| Lattice a | 4.18 Å ± 0.001 | 298.15 | YbSi; _alloy: Yb 0.5_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 1, p. 2, row 3; `ORC-RJJIMRLOBE.540caf` |  |
| Lattice a | 3.781 Å ± 0.001 | 298.15 | YbSi1.74; _alloy: Yb 0.364964_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 1, p. 2, row 6; `ORC-B7X37FHJQF.d96dbb` |  |
| Lattice b | 14.784 Å ± 0.004 | 298.15 | Yb5Si4; _alloy: Yb 0.555556_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 1, p. 2, row 2; `ORC-3DSMASMF3N.1f778a` |  |
| Lattice b | 7.56 Å | 298.15 | Yb8Si11; _alloy: Yb 0.421053_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 1, p. 2, row 4; `ORC-547GJZJDQP.2e12f4` |  |
| Lattice b | 10.314 Å ± 0.002 | 298.15 | YbSi; _alloy: Yb 0.5_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 1, p. 2, row 3; `ORC-RJJIMRLOBE.b42e2b` |  |
| Lattice c | 4.094 Å ± 0.001 | 298.15 | Yb3Si5; _alloy: Yb 0.375_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 1, p. 2, row 5; `ORC-GJY3Z5FHL4.2bf2f2` |  |
| Lattice c | 6.254 Å ± 0.001 | 298.15 | Yb5Si3; _alloy: Yb 0.625_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 1, p. 2, row 1; `ORC-OAGKYHPBIF.3642b7` |  |
| Lattice c | 7.7 Å ± 0.002 | 298.15 | Yb5Si4; _alloy: Yb 0.555556_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 1, p. 2, row 2; `ORC-3DSMASMF3N.057066` |  |
| Lattice c | 23.51 Å | 298.15 | Yb8Si11; _alloy: Yb 0.421053_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 1, p. 2, row 4; `ORC-547GJZJDQP.443b43` |  |
| Lattice c | 3.762 Å ± 0.001 | 298.15 | YbSi; _alloy: Yb 0.5_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 1, p. 2, row 3; `ORC-RJJIMRLOBE.071548` |  |
| Lattice c | 4.101 Å ± 0.001 | 298.15 | YbSi1.74; _alloy: Yb 0.364964_ | experimental | [1] Brutti 2005; _cites Palenzona 2002_ | Table 1, p. 2, row 6; `ORC-B7X37FHJQF.b3dd3c` |  |

## Sources

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

1. S. Brutti, G. Balducci, A. Ciccioli, G. Gigli, Thermodynamic assessment of the Yb–Si system, Calphad 29, 254-261 (2005). [doi:10.1016/j.calphad.2005.06.004](https://doi.org/10.1016/j.calphad.2005.06.004)

## 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/).