# Sn–Zr system

> Sn–Zr system: 63 accepted literature values (invariant reaction 34, formation 20, phase equilibrium 5, crystal structure 2) and 7 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote.

HTML: https://data.orchid-project.org/systems/SN-ZR.html · Markdown: https://data.orchid-project.org/systems/SN-ZR.md

63 accepted literature values from 3 paper(s) (experimental 14, model 33, unspecified 16); 7 calculated phase diagram(s). 7 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/SN-ZR.json) · [CSV](https://data.orchid-project.org/systems/SN-ZR.csv) · [interactive explorer](https://orchid-project.org/data-explorer/#SN-ZR) · [interactive phase diagram](https://orchid-project.org/phase-diagrams/#SN-ZR/SnZr-08Jer.json) · [phases (13)](https://data.orchid-project.org/phases/pages/SN-ZR.html) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/SN-ZR.html) · [Markdown](https://data.orchid-project.org/systems/SN-ZR.md)

Table: Accepted values by evidence class

| Evidence class | Values |
|---|---:|
| experimental | 14 |
| model | 33 |
| unspecified | 16 |

Table: Accepted values by property group

| Property group | Values |
|---|---:|
| invariant reaction | 34 |
| phase equilibrium | 5 |
| formation | 20 |
| mixing / partial | 2 |
| crystal structure | 2 |

## 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 |
|---|---|---|---|
| SnZr-08Jer.tdb | R. Jerlerud Perez, C. Toffolon-Masclet, J.-M. Joubert, B. Sundman, Calphad, 32, 593-601(2008). [doi:10.1016/j.calphad.2008.04.001](https://doi.org/10.1016/j.calphad.2008.04.001) | `036ae254a34338732263f855a4f7c00e8ad16dfc87dc38bff274d10da3034181` | [viewer](https://orchid-project.org/phase-diagrams/#SN-ZR/SnZr-08Jer.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/SnZr-08Jer.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/SnZr-08Jer.json) |
| SnZr-19Laf.tdb | P. Lafaye, C. Toffolon-Masclet, J.-C. Crivello, J.-M. Joubert, Calphad, 64, 43-54(2019). [doi:10.1016/j.calphad.2018.11.002](https://doi.org/10.1016/j.calphad.2018.11.002) | `8197c2228e6891844ed0fde69a12f271c1b77196115f13b5058b37a3fc2a4bb6` | [viewer](https://orchid-project.org/phase-diagrams/#SN-ZR/SnZr-19Laf.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/SnZr-19Laf.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/SnZr-19Laf.json) |
| SnZr-24Pen.tdb | J. Peng, J. Shen, X. Feng, Z. Cheng, Calphad, 85, 102672(2024). [doi:10.1016/j.calphad.2024.102672](https://doi.org/10.1016/j.calphad.2024.102672) | `05a16eefb0b8c3c86ac2ba79861160b94441ee8ee62e5c2adf22982e88570b12` | [viewer](https://orchid-project.org/phase-diagrams/#SN-ZR/SnZr-24Pen.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/SnZr-24Pen.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/SnZr-24Pen.json) |
| SnZr-98Kor.tdb | J. Korb, K. Hack, COST 507, Final report round 2, 1998. | `2f5c7b85378bbe0b9550e760feeed903581aef0e6f525eb9100e344042692054` | [viewer](https://orchid-project.org/phase-diagrams/#SN-ZR/SnZr-98Kor.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/SnZr-98Kor.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/SnZr-98Kor.json) |
| SnZr-98Sub-LB.tdb | N. Subasic, Calphad, 22, 157-65(1998). [doi:10.1016/S0364-5916(98)00021-2](https://doi.org/10.1016/S0364-5916%2898%2900021-2) | `36c8c635a52078e78023f8d2eaade2c6ff049ad1d1bc914c8bb000662a59cf09` | [viewer](https://orchid-project.org/phase-diagrams/#SN-ZR/SnZr-98Sub-LB.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/SnZr-98Sub-LB.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/SnZr-98Sub-LB.json) |
| SnZr-98Sub-orig.tdb | N. Subasic, Calphad, 22, 157-65(1998). [doi:10.1016/S0364-5916(98)00021-2](https://doi.org/10.1016/S0364-5916%2898%2900021-2) | `76bd4dba75de9b8f486326fe3ed3d19bf46d55e7247679d306abc958ca51239a` | [viewer](https://orchid-project.org/phase-diagrams/#SN-ZR/SnZr-98Sub-orig.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/SnZr-98Sub-orig.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/SnZr-98Sub-orig.json) |
| SnZr-99Dup.tdb | N. Dupin, I. Ansara, C. Servant, C. Toffolon, C. Lemaignan, J.C. Brachet, J. Nucl. Mater., 275, 287-95(1999). [doi:10.1016/S0022-3115(99)00125-7](https://doi.org/10.1016/S0022-3115%2899%2900125-7) | `664531d6e2473eccac59cb91adfc77d2f8b41e498621292b417369b8d0b8080b` | [viewer](https://orchid-project.org/phase-diagrams/#SN-ZR/SnZr-99Dup.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/SnZr-99Dup.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/SnZr-99Dup.json) |

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

| TDB file | T (K) | Phases at the invariant |
|---|---:|---|
| SnZr-08Jer.tdb | 1859.41 | SN3ZR5_ETA (x(Zr) 0.61878) + LIQUID (x(Zr) 0.80999) + BCC_A2 (x(Zr) 0.82938) |
| SnZr-08Jer.tdb | 1595.92 | SN3ZR5_ETA (x(Zr) 0.62415) + SNZR4_A15 (x(Zr) 0.79503) + BCC_A2 (x(Zr) 0.87856) |
| SnZr-08Jer.tdb | 1399.7 | LIQUID (x(Zr) 0.21242) + SN2ZR_C54 (x(Zr) 0.33333) + SN3ZR5_ETA (x(Zr) 0.55731) |
| SnZr-08Jer.tdb | 1216.43 | SNZR4_A15 (x(Zr) 0.8051) + HCP_A3 (x(Zr) 0.93462) + BCC_A2 (x(Zr) 0.9546) |
| SnZr-08Jer.tdb | 505.07 | BCT_A5 (x(Zr) 0) + LIQUID (x(Zr) 3.000e-5) + SN2ZR_C54 (x(Zr) 0.33333) |
| SnZr-08Jer.tdb | 505.07 | BCT_A5 (x(Zr) 0) + LIQUID (x(Zr) 3.000e-5) + SN2ZR_C54 (x(Zr) 0.33333) |
| SnZr-19Laf.tdb | 1860.6 | SN3ZR5_ETA (x(Zr) 0.62472) + LIQUID (x(Zr) 0.81772) + BCC_A2 (x(Zr) 0.85052) |
| SnZr-19Laf.tdb | 1621.36 | SN3ZR5_ETA (x(Zr) 0.62491) + SNZR4_A15 (x(Zr) 0.80579) + BCC_A2 (x(Zr) 0.88294) |
| SnZr-19Laf.tdb | 1399.38 | LIQUID (x(Zr) 0.22247) + SN2ZR_C54 (x(Zr) 0.33333) + SN3ZR5_ETA (x(Zr) 0.55775) |
| SnZr-19Laf.tdb | 1219.87 | SNZR4_A15 (x(Zr) 0.81542) + HCP_A3 (x(Zr) 0.94058) + BCC_A2 (x(Zr) 0.94287) |
| SnZr-19Laf.tdb | 505.07 | BCT_A5 (x(Zr) 0) + LIQUID (x(Zr) 3.000e-5) + SN2ZR_C54 (x(Zr) 0.33333) |
| SnZr-19Laf.tdb | 505.07 | BCT_A5 (x(Zr) 0) + LIQUID (x(Zr) 3.000e-5) + SN2ZR_C54 (x(Zr) 0.33333) |
| SnZr-24Pen.tdb | 1861.5 | SN3ZR5_ETA (x(Zr) 0.61331) + LIQUID (x(Zr) 0.80277) + BCC_A2 (x(Zr) 0.80782) |
| SnZr-24Pen.tdb | 1512.73 | SN3ZR5_ETA (x(Zr) 0.62427) + SNZR4_A15 (x(Zr) 0.80547) + BCC_A2 (x(Zr) 0.87855) |
| SnZr-24Pen.tdb | 1428.35 | LIQUID (x(Zr) 0.24988) + SN2ZR_C54 (x(Zr) 0.33333) + SN3ZR5_ETA (x(Zr) 0.56126) |
| SnZr-24Pen.tdb | 1233.87 | SNZR4_A15 (x(Zr) 0.81058) + HCP_A3 (x(Zr) 0.92091) + BCC_A2 (x(Zr) 0.93816) |
| SnZr-24Pen.tdb | 504.97 | BCT_A5 (x(Zr) 0) + LIQUID (x(Zr) 3.500e-4) + SN2ZR_C54 (x(Zr) 0.33333) |
| SnZr-24Pen.tdb | 504.97 | BCT_A5 (x(Zr) 0) + LIQUID (x(Zr) 3.500e-4) + SN2ZR_C54 (x(Zr) 0.33333) |
| SnZr-98Kor.tdb | 1868.52 | SN3ZR5_D88 (x(Zr) 0.625) + LIQUID (x(Zr) 0.82901) + BCC_A2 (x(Zr) 0.84414) |
| SnZr-98Kor.tdb | 1868.52 | SN3ZR5_D88 (x(Zr) 0.625) + LIQUID (x(Zr) 0.82925) + BCC_A2 (x(Zr) 0.8444) |
| SnZr-98Kor.tdb | 1596.01 | SN3ZR5_D88 (x(Zr) 0.625) + SNZR4_A15 (x(Zr) 0.8) + BCC_A2 (x(Zr) 0.89068) |
| SnZr-98Kor.tdb | 1596.01 | SN3ZR5_D88 (x(Zr) 0.625) + SNZR4_A15 (x(Zr) 0.8) + BCC_A2 (x(Zr) 0.89069) |
| SnZr-98Kor.tdb | 1596.01 | SN3ZR5_D88 (x(Zr) 0.625) + SNZR4_A15 (x(Zr) 0.8) + BCC_A2 (x(Zr) 0.89065) |
| SnZr-98Kor.tdb | 1433.16 | LIQUID (x(Zr) 0.18944) + SN2ZR_C54 (x(Zr) 0.33333) + SN3ZR5_D88 (x(Zr) 0.625) |
| SnZr-98Kor.tdb | 1433.16 | LIQUID (x(Zr) 0.18957) + SN2ZR_C54 (x(Zr) 0.33333) + SN3ZR5_D88 (x(Zr) 0.625) |
| SnZr-98Kor.tdb | 1253.56 | SNZR4_A15 (x(Zr) 0.8) + HCP_A3 (x(Zr) 0.94092) + BCC_A2 (x(Zr) 0.96865) |
| SnZr-98Kor.tdb | 1253.56 | SNZR4_A15 (x(Zr) 0.8) + HCP_A3 (x(Zr) 0.94092) + BCC_A2 (x(Zr) 0.96865) |
| SnZr-98Kor.tdb | 502.01 | BCT_A5 (x(Zr) 0) + LIQUID (x(Zr) 0.00565) + SN2ZR_C54 (x(Zr) 0.33333) |
| SnZr-98Kor.tdb | 502.01 | BCT_A5 (x(Zr) 0) + LIQUID (x(Zr) 0.00564) + SN2ZR_C54 (x(Zr) 0.33333) |
| SnZr-98Kor.tdb | 502.01 | BCT_A5 (x(Zr) 0) + LIQUID (x(Zr) 0.00563) + SN2ZR_C54 (x(Zr) 0.33333) |
| SnZr-98Sub-LB.tdb | 1792.67 | SN3ZR5_D88 (x(Zr) 0.625) + LIQUID (x(Zr) 0.82593) + BCC_A2 (x(Zr) 0.85772) |
| SnZr-98Sub-LB.tdb | 1792.67 | SN3ZR5_D88 (x(Zr) 0.625) + LIQUID (x(Zr) 0.82613) + BCC_A2 (x(Zr) 0.85792) |
| SnZr-98Sub-LB.tdb | 1593.12 | SN3ZR5_D88 (x(Zr) 0.625) + SNZR4_A15 (x(Zr) 0.8) + BCC_A2 (x(Zr) 0.87458) |
| SnZr-98Sub-LB.tdb | 1593.12 | SN3ZR5_D88 (x(Zr) 0.625) + SNZR4_A15 (x(Zr) 0.8) + BCC_A2 (x(Zr) 0.8746) |
| SnZr-98Sub-LB.tdb | 1593.12 | SN3ZR5_D88 (x(Zr) 0.625) + SNZR4_A15 (x(Zr) 0.8) + BCC_A2 (x(Zr) 0.87454) |
| SnZr-98Sub-LB.tdb | 1411.91 | SN2ZR_C54 (x(Zr) 0.33333) + LIQUID (x(Zr) 0.33616) + SN3ZR5_D88 (x(Zr) 0.625) |
| SnZr-98Sub-LB.tdb | 1411.91 | SN2ZR_C54 (x(Zr) 0.33333) + LIQUID (x(Zr) 0.33638) + SN3ZR5_D88 (x(Zr) 0.625) |
| SnZr-98Sub-LB.tdb | 1252.12 | SNZR4_A15 (x(Zr) 0.8) + BCC_A2 (x(Zr) 0.94869) + HCP_A3 (x(Zr) 0.95106) |
| SnZr-98Sub-LB.tdb | 502.99 | BCT_A5 (x(Zr) 0) + LIQUID (x(Zr) 0.00553) + SN2ZR_C54 (x(Zr) 0.33333) |
| SnZr-98Sub-LB.tdb | 502.99 | BCT_A5 (x(Zr) 0) + LIQUID (x(Zr) 0.00552) + SN2ZR_C54 (x(Zr) 0.33333) |
| SnZr-98Sub-orig.tdb | 1792.67 | SN3ZR5_D88 (x(Zr) 0.625) + LIQUID (x(Zr) 0.82593) + BCC_A2 (x(Zr) 0.85772) |
| SnZr-98Sub-orig.tdb | 1792.67 | SN3ZR5_D88 (x(Zr) 0.625) + LIQUID (x(Zr) 0.82613) + BCC_A2 (x(Zr) 0.85792) |
| SnZr-98Sub-orig.tdb | 1593.12 | SN3ZR5_D88 (x(Zr) 0.625) + SNZR4_A15 (x(Zr) 0.8) + BCC_A2 (x(Zr) 0.87458) |
| SnZr-98Sub-orig.tdb | 1593.12 | SN3ZR5_D88 (x(Zr) 0.625) + SNZR4_A15 (x(Zr) 0.8) + BCC_A2 (x(Zr) 0.8746) |
| SnZr-98Sub-orig.tdb | 1593.12 | SN3ZR5_D88 (x(Zr) 0.625) + SNZR4_A15 (x(Zr) 0.8) + BCC_A2 (x(Zr) 0.87454) |
| SnZr-98Sub-orig.tdb | 1411.91 | SN2ZR_C54 (x(Zr) 0.33333) + LIQUID (x(Zr) 0.33616) + SN3ZR5_D88 (x(Zr) 0.625) |
| SnZr-98Sub-orig.tdb | 1411.91 | SN2ZR_C54 (x(Zr) 0.33333) + LIQUID (x(Zr) 0.33638) + SN3ZR5_D88 (x(Zr) 0.625) |
| SnZr-98Sub-orig.tdb | 1252.25 | SNZR4_A15 (x(Zr) 0.8) + HCP_A3 (x(Zr) 0.94059) + BCC_A2 (x(Zr) 0.94864) |
| SnZr-98Sub-orig.tdb | 1252.25 | SNZR4_A15 (x(Zr) 0.8) + HCP_A3 (x(Zr) 0.94061) + BCC_A2 (x(Zr) 0.94866) |
| SnZr-98Sub-orig.tdb | 502.99 | BCT_A5 (x(Zr) 0) + LIQUID (x(Zr) 0.00553) + SN2ZR_C54 (x(Zr) 0.33333) |
| SnZr-98Sub-orig.tdb | 502.99 | BCT_A5 (x(Zr) 0) + LIQUID (x(Zr) 0.00552) + SN2ZR_C54 (x(Zr) 0.33333) |
| SnZr-99Dup.tdb | 1894.81 | SN3ZR5_D88 (x(Zr) 0.625) + LIQUID (x(Zr) 0.82442) + BCC_A2 (x(Zr) 0.84597) |
| SnZr-99Dup.tdb | 1894.81 | SN3ZR5_D88 (x(Zr) 0.625) + LIQUID (x(Zr) 0.82451) + BCC_A2 (x(Zr) 0.84607) |
| SnZr-99Dup.tdb | 1573.43 | SN3ZR5_D88 (x(Zr) 0.625) + SNZR4_A15 (x(Zr) 0.8) + BCC_A2 (x(Zr) 0.87401) |
| SnZr-99Dup.tdb | 1573.43 | SN3ZR5_D88 (x(Zr) 0.625) + SNZR4_A15 (x(Zr) 0.8) + BCC_A2 (x(Zr) 0.87401) |
| SnZr-99Dup.tdb | 1573.43 | SN3ZR5_D88 (x(Zr) 0.625) + SNZR4_A15 (x(Zr) 0.8) + BCC_A2 (x(Zr) 0.87397) |
| SnZr-99Dup.tdb | 1385.56 | LIQUID (x(Zr) 0.29889) + SN2ZR_C54 (x(Zr) 0.33333) + SN3ZR5_D88 (x(Zr) 0.625) |
| SnZr-99Dup.tdb | 1385.56 | LIQUID (x(Zr) 0.29931) + SN2ZR_C54 (x(Zr) 0.33333) + SN3ZR5_D88 (x(Zr) 0.625) |
| SnZr-99Dup.tdb | 1261.07 | SNZR4_A15 (x(Zr) 0.8) + HCP_A3 (x(Zr) 0.93551) + BCC_A2 (x(Zr) 0.94559) |
| SnZr-99Dup.tdb | 1261.07 | SNZR4_A15 (x(Zr) 0.8) + HCP_A3 (x(Zr) 0.93554) + BCC_A2 (x(Zr) 0.94562) |
| SnZr-99Dup.tdb | 505.03 | BCT_A5 (x(Zr) 0) + LIQUID (x(Zr) 1.600e-4) + SN2ZR_C54 (x(Zr) 0.33333) |
| SnZr-99Dup.tdb | 505.03 | BCT_A5 (x(Zr) 0) + LIQUID (x(Zr) 1.600e-4) + SN2ZR_C54 (x(Zr) 0.33333) |

Convex hulls: [Materials Project DFT hull](https://data.orchid-project.org/hulls/dft-mp/SN/SN-ZR.json) · [OQMD DFT hull](https://data.orchid-project.org/hulls/dft-oqmd/SN/SN-ZR.json) · [CALPHAD hull SnZr-08Jer](https://data.orchid-project.org/hulls/calphad-sgte/SN/SN-ZR--SnZr-08Jer.json) · [CALPHAD hull SnZr-19Laf](https://data.orchid-project.org/hulls/calphad-sgte/SN/SN-ZR--SnZr-19Laf.json) · [CALPHAD hull SnZr-98Kor](https://data.orchid-project.org/hulls/calphad-sgte/SN/SN-ZR--SnZr-98Kor.json) · [CALPHAD hull SnZr-98Sub-LB](https://data.orchid-project.org/hulls/calphad-sgte/SN/SN-ZR--SnZr-98Sub-LB.json) · [CALPHAD hull SnZr-98Sub-orig](https://data.orchid-project.org/hulls/calphad-sgte/SN/SN-ZR--SnZr-98Sub-orig.json) · [CALPHAD hull SnZr-99Dup](https://data.orchid-project.org/hulls/calphad-sgte/SN/SN-ZR--SnZr-99Dup.json)

## Invariant reactions (literature)

Table: Invariant reactions reported in the literature for the Sn–Zr system (34)

| T (K) | Reaction / phases | Compositions (mole fraction) | Class | Source | Location | Quote |
|---:|---|---|---|---|---|---|
| 2265 | congruent melting: η \<-> Liq | η: Sn 0.398 | unspecified | [1] Pérez 2008 | Table 5, p. 8, row 12; `ORC-FNFMMC7KDI` |  |
| 2263 | congruent melting: η \<-> Liq | η: Sn 0.412 | unspecified | [1] Pérez 2008; _cites Kwon 1990_ [doi](https://doi.org/10.1021/cm00007a005) | Table 5, p. 8, row 11; `ORC-TRX7YOWFIR` |  |
| 2261 | congruent melting: L = Zr5Sn3 | L: Sn 0.375, Zr 0.625; Zr5Sn3: Sn 0.375, Zr 0.625 | unspecified | [2] Subasic 1998; _cites ref. 83Abr_ | Table 1, p. 3, row 12; `ORC-LT6Q6VROMX` |  |
| 2260 | congruent melting: L = Zr5Sn3 | Zr5Sn3: Sn 0.4 | model | [2] Subasic 1998 | Table 1, p. 3, row 11; `ORC-GK4OKD2FDP` |  |
| 2258 | congruent melting: η \<-> Liq | η: Sn 0.375 | experimental | [1] Pérez 2008; _cites McPherson 1953_ | Table 5, p. 8, row 10; `ORC-VW47UG4E2T` |  |
| 2245 | congruent melting: Liquid -> Sn3Zr5 | Liquid: Zr 0.625; Sn3Zr5: Zr 0.625 | model | [3] (ed.) 1998 | Table I, p. 308, row 6; `ORC-EVQOCKYJL7` |  |
| 2128 | congruent melting: L = β Zr | β Zr: Sn 0 | model | [2] Subasic 1998 | Table 1, p. 3, row 13; `ORC-ISEHRRQSBR` |  |
| 2128 | congruent melting: L = β Zr |  | unspecified | [2] Subasic 1998; _cites ref. 83Abr_ | Table 1, p. 3, row 14; `ORC-SSJUME7TJC` |  |
| 1868.5 | eutectic: Liquid -> bcc-A2 + Sn3Zr5 | Liquid: Zr 0.892; bcc-A2: Zr 0.844; Sn3Zr5: Zr 0.625 | model | [3] (ed.) 1998 | Table I, p. 308, row 1; `ORC-QU644NHWJB` |  |
| 1865 | eutectic: L = β Zr + Zr5Sn3 | Zr5Sn3: Sn 0.375, Zr 0.625 | unspecified | [2] Subasic 1998; _cites ref. 83Abr_ | Table 1, p. 3, row 2; `ORC-I2F56TW6OY` |  |
| 1863 | eutectic: Liq \<-> βZr + η | Liq: Sn 0.191; βZr: Sn 0.17; η: Sn 0.375 | experimental | [1] Pérez 2008; _cites McPherson 1953_ | Table 5, p. 8, row 1; `ORC-P5JMFHPF5A` |  |
| 1859 | eutectic: Liq \<-> βZr + η | Liq: Sn 0.19; βZr: Sn 0.171; η: Sn 0.381 | unspecified | [1] Pérez 2008 | Table 5, p. 8, row 2; `ORC-4RCTNTS4CX` |  |
| 1793 | eutectic: L = β Zr + Zr5Sn3 | L: Sn 0.191; β Zr: Sn 0.17; Zr5Sn3: Sn 0.4 | model | [2] Subasic 1998 | Table 1, p. 3, row 1; `ORC-J3IYSCUJF7` |  |
| 1600 | peritectoid: β Zr + Zr5Sn3 = Zr4Sn | Zr5Sn3: Sn 0.375, Zr 0.625; Zr4Sn: Sn 0.2, Zr 0.8 | unspecified | [2] Subasic 1998; _cites ref. 83Abr_ | Table 1, p. 3, row 4; `ORC-Q3MLW5CSMA` |  |
| 1598 | peritectoid: βZr + η \<-> A15 | βZr: Sn 0.12; η: Sn 0.375; A15: Sn 0.2 | experimental | [1] Pérez 2008; _cites McPherson 1953_ | Table 5, p. 8, row 3; `ORC-B4P5DPUCI7` |  |
| 1596 | peritectoid: βZr + η \<-> A15 | βZr: Sn 0.121; η: Sn 0.376; A15: Sn 0.205 | unspecified | [1] Pérez 2008 | Table 5, p. 8, row 4; `ORC-HIXTATI7VJ` |  |
| 1595.5 | peritectoid: bcc-A2 + Sn3Zr5 -> SnZr4 | bcc-A2: Zr 0.891; Sn3Zr5: Zr 0.625; SnZr4: Zr 0.8 | model | [3] (ed.) 1998 | Table I, p. 308, row 2; `ORC-KEUUNKG25W` |  |
| 1593 | peritectoid: β Zr + Zr5Sn3 = Zr4Sn | β Zr: Sn 0.118; Zr5Sn3: Sn 0.4; Zr4Sn: Sn 0.2 | model | [2] Subasic 1998 | Table 1, p. 3, row 3; `ORC-QK5FQWGLKL` |  |
| 1433.3 | peritectoid: Liquid + Sn3Zr5 -> Sn2Zr | Liquid: Zr 0.189; Sn3Zr5: Zr 0.625; Sn2Zr: Zr 0.333 | model | [3] (ed.) 1998 | Table I, p. 308, row 4; `ORC-CJBMDYCRRS` |  |
| 1415 | peritectic: Zr5Sn3 + L = ZrSn2 | Zr5Sn3: Sn 0.375, Zr 0.625; ZrSn2: Sn 0.666667, Zr 0.333333 | unspecified | [2] Subasic 1998; _cites ref. 83Abr_ | Table 1, p. 3, row 6; `ORC-IYMZPKKEDE` |  |
| 1413 | peritectic: η + Liq \<-> ZrSn2 | η: Sn 0.367; Liq: Sn 0.7896; ZrSn2: Sn 0.667 | experimental | [1] Pérez 2008; _cites McPherson 1953_ | Table 5, p. 8, row 8; `ORC-A37RID3FIJ` |  |
| 1412 | peritectic: Zr5Sn3 + L = ZrSn2 | Zr5Sn3: Sn 0.4; L: Sn 0.79; ZrSn2: Sn 0.666 | model | [2] Subasic 1998 | Table 1, p. 3, row 5; `ORC-ALJOFWWF55` |  |
| 1400 | peritectic: η + Liq \<-> ZrSn2 | η: Sn 0.443; Liq: Sn 0.7876; ZrSn2: Sn 0.667 | unspecified | [1] Pérez 2008 | Table 5, p. 8, row 9; `ORC-73VCUSHMO3` |  |
| 1255 | peritectoid: β Zr + Zr4Sn = α Zr | Zr4Sn: Sn 0.2, Zr 0.8 | unspecified | [2] Subasic 1998; _cites ref. 83Abr_ | Table 1, p. 3, row 8; `ORC-J3GQPADJ3O` |  |
| 1254 | peritectoid: bcc-A2 + SnZr4 -> hcp-A3 | bcc-A2: Zr 0.968; SnZr4: Zr 0.8; hcp-A3: Zr 0.941 | model | [3] (ed.) 1998 | Table I, p. 308, row 3; `ORC-WP2FWRCFXC` |  |
| 1253 | peritectoid: βZr + A15 \<-> αZr | βZr: Sn 0.051; A15: Sn 0.2; αZr: Sn 0.071 | experimental | [1] Pérez 2008; _cites McPherson 1953_ | Table 5, p. 8, row 5; `ORC-XHHHIMHDEM` |  |
| 1252 | peritectoid: β Zr + Zr4Sn = α Zr | β Zr: Sn 0.049; Zr4Sn: Sn 0.2; α Zr: Sn 0.073 | model | [2] Subasic 1998 | Table 1, p. 3, row 7; `ORC-6GNT6TICU5` |  |
| 1216 | peritectoid: βZr + A15 \<-> αZr | βZr: Sn 0.045; A15: Sn 0.195; αZr: Sn 0.065 | unspecified | [1] Pérez 2008 | Table 5, p. 8, row 7; `ORC-5RJERXXUFV` |  |
| 1216 | peritectoid: βZr + A15 \<-> αZr | A15: Sn 0.2, Zr 0.8 | experimental | [1] Pérez 2008 | Table 5, p. 8, row 6; `ORC-7ERMFCRLO5` |  |
| 505 | congruent melting: L = β Sn |  | unspecified | [2] Subasic 1998; _cites ref. 83Abr_ | Table 1, p. 3, row 18; `ORC-IKIJQ763SQ` |  |
| 504 | eutectic: L = ZrSn2 + β Sn | ZrSn2: Sn 0.666667, Zr 0.333333 | unspecified | [2] Subasic 1998; _cites ref. 83Abr_ | Table 1, p. 3, row 10; `ORC-4GJVC6THQJ` |  |
| 503 | congruent melting: L = β Sn | β Sn: Sn 1 | model | [2] Subasic 1998 | Table 1, p. 3, row 17; `ORC-RNQ32FOXFS` |  |
| 503 | eutectic: L = ZrSn2 + β Sn | ZrSn2: Sn 0.666; β Sn: Sn 1 | model | [2] Subasic 1998 | Table 1, p. 3, row 9; `ORC-YYT2ZW5FR2` |  |
| 502 | eutectic: Liquid -> Sn2Zr + bct-A5 | Liquid: Zr 0.0056; Sn2Zr: Zr 0.333; bct-A5: Zr 0 | model | [3] (ed.) 1998 | Table I, p. 308, row 5; `ORC-UNHBHIVLVQ` |  |

## 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, Sn–Zr system (20)

| Phase | Compound | Value | T (K) | Class | MP DFT (kJ/mol-atom) | OQMD DFT (kJ/mol-atom) | Source | Location | Quote |
|---|---|---:|---:|---|---:|---:|---|---|---|
| (Zr4Sn)a |  | -58.898 kJ/mol (basis unstated) |  | model |  |  | [1] Pérez 2008; _cites Dupin 1999_ [doi](https://doi.org/10.1016/s0022-3115%2899%2900125-7) | Table 4, p. 8, row 4; `ORC-FSL5FOSBCR.f52d44` |  |
| (Zr4Sn)a |  | -48.082 kJ/mol (basis unstated) |  | model |  |  | [1] Pérez 2008; _cites De 1988_ | Table 4, p. 8, row 5; `ORC-X4IOTSULJI.bd8667` |  |
| (Zr4Sn)a |  | -42.667 kJ/mol (basis unstated) |  | model |  |  | [1] Pérez 2008 | Table 4, p. 8, row 3; `ORC-DJF6Q4DPMX.8b50c3` |  |
| (Zr4Sn)a |  | -38.292 kJ/mol (basis unstated) |  | model |  |  | [1] Pérez 2008; _cites Baykov 2006_ [doi](https://doi.org/10.1016/j.scriptamat.2006.04.047) | Table 4, p. 8, row 2; `ORC-FDCHLOAN23.9167b1` |  |
| (Zr4Sn)a |  | -29.94 kJ/mol (basis unstated) |  | model |  |  | [1] Pérez 2008; _cites Baykov 2006_ [doi](https://doi.org/10.1016/j.scriptamat.2006.04.047) | Table 4, p. 8, row 1; `ORC-LAIODVVQT2.130586` |  |
| Zr5Sn3 |  | -81.551 kJ/mol (basis unstated) | 1473 | model |  |  | [1] Pérez 2008; _cites Dupin 1999_ [doi](https://doi.org/10.1016/s0022-3115%2899%2900125-7) | Table 4, p. 8, row 9; `ORC-646VZ5S726` |  |
| Zr5Sn3 |  | -80.96 kJ/mol (basis unstated) | 1473 | model |  |  | [1] Pérez 2008; _cites De 1988_ | Table 4, p. 8, row 11; `ORC-CCZMEPW74H` |  |
| Zr5Sn3 |  | -74.345 kJ/mol (basis unstated) | 1473 | model |  |  | [1] Pérez 2008 | Table 4, p. 8, row 8; `ORC-GY23XUYBU6` |  |
| Zr5Sn3 |  | -71.2 kJ/mol (basis unstated) | 1473 | experimental |  |  | [1] Pérez 2008; _cites Meschel 1998_ [doi](https://doi.org/10.1016/s0040-6031%2897%2900467-x) | Table 4, p. 8, row 10; `ORC-XIHUVFQ73L` |  |
| Zr5Sn3 |  | -71.2 kJ/mol (basis unstated) | 1473 | model |  |  | [1] Pérez 2008; _cites Baykov 2006_ [doi](https://doi.org/10.1016/j.scriptamat.2006.04.047) | Table 4, p. 8, row 7; `ORC-XX76GCTWTB` |  |
| Zr5Sn3 |  | -55.67 kJ/mol (basis unstated) | 1473 | model |  |  | [1] Pérez 2008; _cites Baykov 2006_ [doi](https://doi.org/10.1016/j.scriptamat.2006.04.047) | Table 4, p. 8, row 6; `ORC-2VWXQTCZE4` |  |
| Zr5Sn4 |  | -85.989 kJ/mol (basis unstated) |  | model |  |  | [1] Pérez 2008; _cites De 1988_ | Table 4, p. 8, row 15; `ORC-7JUSQKW62W` |  |
| Zr5Sn4 |  | -79.115 kJ/mol (basis unstated) |  | model |  |  | [1] Pérez 2008 | Table 4, p. 8, row 14; `ORC-XG4MRQPDRC` |  |
| Zr5Sn4 |  | -74.806 kJ/mol (basis unstated) |  | model |  |  | [1] Pérez 2008; _cites Baykov 2006_ [doi](https://doi.org/10.1016/j.scriptamat.2006.04.047) | Table 4, p. 8, row 13; `ORC-22DVUVCEH2` |  |
| Zr5Sn4 |  | -58.49 kJ/mol (basis unstated) |  | model |  |  | [1] Pérez 2008; _cites Baykov 2006_ [doi](https://doi.org/10.1016/j.scriptamat.2006.04.047) | Table 4, p. 8, row 12; `ORC-F6ATHOEPCQ` |  |
| ZrSn2 |  | -72.639 kJ/mol (basis unstated) |  | model |  |  | [1] Pérez 2008; _cites Dupin 1999_ [doi](https://doi.org/10.1016/s0022-3115%2899%2900125-7) | Table 4, p. 8, row 19; `ORC-Q5BEK3HVLD` |  |
| ZrSn2 |  | -67.37 kJ/mol (basis unstated) |  | model |  |  | [1] Pérez 2008; _cites De 1988_ | Table 4, p. 8, row 20; `ORC-GQITYEIYCW` |  |
| ZrSn2 |  | -56.27 kJ/mol (basis unstated) |  | model |  |  | [1] Pérez 2008 | Table 4, p. 8, row 18; `ORC-BI2ZYYPNU3` |  |
| ZrSn2 |  | -54.874 kJ/mol (basis unstated) |  | model |  |  | [1] Pérez 2008; _cites Baykov 2006_ [doi](https://doi.org/10.1016/j.scriptamat.2006.04.047) | Table 4, p. 8, row 17; `ORC-LPYPKL4BBL` |  |
| ZrSn2 |  | -42.905 kJ/mol (basis unstated) |  | model |  |  | [1] Pérez 2008; _cites Baykov 2006_ [doi](https://doi.org/10.1016/j.scriptamat.2006.04.047) | Table 4, p. 8, row 16; `ORC-MCTPON6QTP` |  |

## Other properties

### Phase equilibrium (5)

Table: Phase equilibrium, Sn–Zr system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Phase composition |  | 1273 | A15 + η; _A15: Sn 0.19, Zr 0.81; η: Sn 0.358, Zr 0.642_ | experimental | [1] Pérez 2008 | Table 1, p. 3, row 2; `ORC-CRT7O4DQ5G` |  |
| Phase composition |  | 1273 | A15 + η + αZr; _A15: Sn 0.188, Zr 0.812; η: Sn 0.353, Zr 0.647_ | experimental | [1] Pérez 2008 | Table 1, p. 3, row 1; `ORC-MIWLM5LWVF` |  |
| Phase composition |  | 1273 | η + ZrSn2; _η: Sn 0.444, Zr 0.556_ | experimental | [1] Pérez 2008 | Table 1, p. 3, row 5; `ORC-XSZQP43L3G` |  |
| Phase composition |  | 1273 | η(Sn poor) + η(Sn rich); _η(Sn rich): Sn 0.412, Zr 0.588_ | experimental | [1] Pérez 2008 | Table 1, p. 3, row 4; `ORC-SK5Q7VXUCU` |  |
| Phase composition |  | 1873 | η; _η: Sn 0.392, Zr 0.608_ | experimental | [1] Pérez 2008 | Table 1, p. 3, row 3; `ORC-TGLBZPNHOF` |  |

### Mixing / partial (2)

Table: Mixing / partial, Sn–Zr system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Partial enthalpy; _printed: partial enthalpy of mixing_ | -114.47 kJ/mol (basis unstated) | 1873 |  | experimental | [1] Pérez 2008; _cites Valishev 1992_ | p. 5; `ORC-B7IOJ4VFKQ.535ce9` | “The values of the partial enthalpy of mixing in Sn rich alloys measured by calorimetry at 1873 K decreases from -6503 J/mol at 0.58 at.% Zr to -114 470 J/mol at 31.6 at.% Zr after Valishev et al. \[15\].” |
| Partial enthalpy; _printed: partial enthalpy of mixing_ | -6.503 kJ/mol (basis unstated) | 1873 |  | experimental | [1] Pérez 2008; _cites Valishev 1992_ | p. 5; `ORC-B7IOJ4VFKQ.d49d14` | “The values of the partial enthalpy of mixing in Sn rich alloys measured by calorimetry at 1873 K decreases from -6503 J/mol at 0.58 at.% Zr to -114 470 J/mol at 31.6 at.% Zr after Valishev et al. \[15\].” |

### Crystal structure (2)

Table: Crystal structure, Sn–Zr system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| site fractional coordinates |  | 298.15 | A15 | unspecified | [1] Pérez 2008 | Table 2, p. 4, row 8; `ORC-6FZCZWEVT2` |  |
| site fractional coordinates |  | 298.15 | A15 | unspecified | [1] Pérez 2008 | Table 2, p. 4, row 7; `ORC-D4I7F7HYJA` |  |

## Sources

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

1. R. Jerlerud Pérez, C. Toffolon-Masclet, J.-M. Joubert, B. Sundman, The Zr–Sn binary system: New experimental results and thermodynamic assessment, Calphad 32, 593-601 (2008). [doi:10.1016/j.calphad.2008.04.001](https://doi.org/10.1016/j.calphad.2008.04.001)
2. Nihad Subasic, Thermodynamic evaluation of Sn-Zr phase diagram, Calphad 22, 157-165 (1998). [doi:10.1016/s0364-5916(98)00021-2](https://doi.org/10.1016/s0364-5916%2898%2900021-2)
3. I. Ansara, A. T. Dinsdale, M. H. Rand (eds.), COST 507: Thermochemical database for light metal alloys, Volume 2, EUR 18499 EN, Office for Official Publications of the European Communities, Luxembourg (1998), ISBN 92-828-3902-8.

## 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/).