Cu–Ho system
23 accepted literature values from 1 paper(s) (experimental 12, model 11); 2 calculated phase diagram(s).
Data: JSON · CSV · interactive explorer · interactive phase diagram · phases (10) · papers (bibliography) · Markdown
| Evidence class | Values |
|---|---|
| experimental | 12 |
| model | 11 |
| Property group | Values |
|---|---|
| invariant reaction | 23 |
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.
| TDB file | Assessment | SHA-256 | Links |
|---|---|---|---|
| CuHo-09Wan-newHo.tdb | C.P. Wang, S.H. Guo, X.J. Liu, A.T. Tang, F.S. Pan, J. Alloys Compd., 487, 173-78(2009). doi:10.1016/j.jallcom.2009.08.042 | b376cb3e339bac727cf9884b0cf22007c55c84a7b4c9b28597b69f83cc6f052c | viewer · TDB · JSON |
| CuHo-09Wan.tdb | C.P. Wang, S.H. Guo, X.J. Liu, A.T. Tang, F.S. Pan, J. Alloys Compd., 487, 173-78(2009). doi:10.1016/j.jallcom.2009.08.042 | 7fa1a2bcc060b66d5232fee581c46fcdd026a10c0698bdf84816d5cf7b471eda | viewer · TDB · JSON |
| TDB file | T (K) | Phases at the invariant |
|---|---|---|
| CuHo-09Wan-newHo.tdb | 1259.36 | LIQUID (x(Ho) 0.16491) + CU5HO_D2D (x(Ho) 0.16667) + CU9HO2 (x(Ho) 0.18182) |
| CuHo-09Wan-newHo.tdb | 1259.36 | LIQUID (x(Ho) 0.16498) + CU5HO_D2D (x(Ho) 0.16667) + CU9HO2 (x(Ho) 0.18182) |
| CuHo-09Wan-newHo.tdb | 1259.36 | LIQUID (x(Ho) 0.16473) + CU5HO_D2D (x(Ho) 0.16667) + CU9HO2 (x(Ho) 0.18182) |
| CuHo-09Wan-newHo.tdb | 1242.86 | CU5HO_D2D (x(Ho) 0.16667) + CU5HO_C15B (x(Ho) 0.16667) + CU9HO2 (x(Ho) 0.18182) |
| CuHo-09Wan-newHo.tdb | 1242.86 | LIQUID (x(Ho) 0.13277) + CU5HO_C15B (x(Ho) 0.16667) + CU5HO_D2D (x(Ho) 0.16667) |
| CuHo-09Wan-newHo.tdb | 1242.86 | LIQUID (x(Ho) 0.13243) + CU5HO_D2D (x(Ho) 0.16667) + CU5HO_C15B (x(Ho) 0.16667) |
| CuHo-09Wan-newHo.tdb | 1242.86 | LIQUID (x(Ho) 0.13242) + CU5HO_D2D (x(Ho) 0.16667) + CU5HO_C15B (x(Ho) 0.16667) |
| CuHo-09Wan-newHo.tdb | 1206.65 | CU9HO2 (x(Ho) 0.18182) + CU7HO2 (x(Ho) 0.22222) + LIQUID (x(Ho) 0.25222) |
| CuHo-09Wan-newHo.tdb | 1206.64 | CU9HO2 (x(Ho) 0.18182) + CU7HO2 (x(Ho) 0.22222) + LIQUID (x(Ho) 0.25233) |
| CuHo-09Wan-newHo.tdb | 1158.09 | CU2HO (x(Ho) 0.33333) + LIQUID (x(Ho) 0.35559) + CUHO_B2 (x(Ho) 0.5) |
| CuHo-09Wan-newHo.tdb | 1158.09 | CU2HO (x(Ho) 0.33333) + LIQUID (x(Ho) 0.35553) + CUHO_B2 (x(Ho) 0.5) |
| CuHo-09Wan-newHo.tdb | 1158.09 | CU2HO (x(Ho) 0.33333) + LIQUID (x(Ho) 0.35568) + CUHO_B2 (x(Ho) 0.5) |
| CuHo-09Wan-newHo.tdb | 1150.07 | FCC_A1 (x(Ho) 0) + LIQUID (x(Ho) 0.08328) + CU5HO_C15B (x(Ho) 0.16667) |
| CuHo-09Wan-newHo.tdb | 1150.07 | FCC_A1 (x(Ho) 0) + LIQUID (x(Ho) 0.08324) + CU5HO_C15B (x(Ho) 0.16667) |
| CuHo-09Wan-newHo.tdb | 1150.07 | FCC_A1 (x(Ho) 0) + LIQUID (x(Ho) 0.08321) + CU5HO_C15B (x(Ho) 0.16667) |
| CuHo-09Wan-newHo.tdb | 1150.07 | FCC_A1 (x(Ho) 0) + LIQUID (x(Ho) 0.08319) + CU5HO_C15B (x(Ho) 0.16667) |
| CuHo-09Wan-newHo.tdb | 1144.94 | CU7HO2 (x(Ho) 0.22222) + LIQUID (x(Ho) 0.28703) + CU2HO (x(Ho) 0.33333) |
| CuHo-09Wan-newHo.tdb | 1144.94 | CU7HO2 (x(Ho) 0.22222) + LIQUID (x(Ho) 0.28708) + CU2HO (x(Ho) 0.33333) |
| CuHo-09Wan-newHo.tdb | 1143.81 | CU9HO2 (x(Ho) 0.18182) + CU7HO2 (x(Ho) 0.22222) + CU2HO (x(Ho) 0.33333) |
| CuHo-09Wan-newHo.tdb | 1108.79 | CUHO_B2 (x(Ho) 0.5) + LIQUID (x(Ho) 0.70817) + HCP_A3 (x(Ho) 0.99963) |
| CuHo-09Wan-newHo.tdb | 1108.79 | CUHO_B2 (x(Ho) 0.5) + LIQUID (x(Ho) 0.70824) + HCP_A3 (x(Ho) 0.99963) |
| CuHo-09Wan.tdb | 1700.91 | LIQUID (x(Ho) 0.97896) + BCC_A2 (x(Ho) 0.99955) + HCP_A3 (x(Ho) 0.99992) |
| CuHo-09Wan.tdb | 1257.8 | LIQUID (x(Ho) 0.16516) + CU5HO_D2D (x(Ho) 0.16667) + CU9HO2 (x(Ho) 0.18182) |
| CuHo-09Wan.tdb | 1257.8 | LIQUID (x(Ho) 0.16536) + CU5HO_D2D (x(Ho) 0.16667) + CU9HO2 (x(Ho) 0.18182) |
| CuHo-09Wan.tdb | 1257.8 | LIQUID (x(Ho) 0.1651) + CU5HO_D2D (x(Ho) 0.16667) + CU9HO2 (x(Ho) 0.18182) |
| CuHo-09Wan.tdb | 1242.86 | CU5HO_D2D (x(Ho) 0.16667) + CU5HO_C15B (x(Ho) 0.16667) + CU9HO2 (x(Ho) 0.18182) |
| CuHo-09Wan.tdb | 1242.86 | LIQUID (x(Ho) 0.13435) + CU5HO_C15B (x(Ho) 0.16667) + CU5HO_D2D (x(Ho) 0.16667) |
| CuHo-09Wan.tdb | 1242.86 | LIQUID (x(Ho) 0.13397) + CU5HO_D2D (x(Ho) 0.16667) + CU5HO_C15B (x(Ho) 0.16667) |
| CuHo-09Wan.tdb | 1242.86 | LIQUID (x(Ho) 0.13397) + CU5HO_D2D (x(Ho) 0.16667) + CU5HO_C15B (x(Ho) 0.16667) |
| CuHo-09Wan.tdb | 1192.27 | CU9HO2 (x(Ho) 0.18182) + CU7HO2 (x(Ho) 0.22222) + LIQUID (x(Ho) 0.26027) |
| CuHo-09Wan.tdb | 1192.26 | CU9HO2 (x(Ho) 0.18182) + CU7HO2 (x(Ho) 0.22222) + LIQUID (x(Ho) 0.26036) |
| CuHo-09Wan.tdb | 1155.46 | CU2HO (x(Ho) 0.33333) + LIQUID (x(Ho) 0.35605) + CUHO_B2 (x(Ho) 0.5) |
| CuHo-09Wan.tdb | 1155.46 | CU2HO (x(Ho) 0.33333) + LIQUID (x(Ho) 0.356) + CUHO_B2 (x(Ho) 0.5) |
| CuHo-09Wan.tdb | 1155.46 | CU2HO (x(Ho) 0.33333) + LIQUID (x(Ho) 0.35613) + CUHO_B2 (x(Ho) 0.5) |
| CuHo-09Wan.tdb | 1154.01 | CU9HO2 (x(Ho) 0.18182) + CU7HO2 (x(Ho) 0.22222) + LIQUID (x(Ho) 0.2813) |
| CuHo-09Wan.tdb | 1154.01 | CU9HO2 (x(Ho) 0.18182) + CU7HO2 (x(Ho) 0.22222) + LIQUID (x(Ho) 0.28135) |
| CuHo-09Wan.tdb | 1154 | CU9HO2 (x(Ho) 0.18182) + CU7HO2 (x(Ho) 0.22222) + LIQUID (x(Ho) 0.28147) |
| CuHo-09Wan.tdb | 1149.2 | FCC_A1 (x(Ho) 0) + LIQUID (x(Ho) 0.08351) + CU5HO_C15B (x(Ho) 0.16667) |
| CuHo-09Wan.tdb | 1149.2 | FCC_A1 (x(Ho) 0) + LIQUID (x(Ho) 0.08348) + CU5HO_C15B (x(Ho) 0.16667) |
| CuHo-09Wan.tdb | 1149.2 | FCC_A1 (x(Ho) 0) + LIQUID (x(Ho) 0.08345) + CU5HO_C15B (x(Ho) 0.16667) |
| CuHo-09Wan.tdb | 1149.2 | FCC_A1 (x(Ho) 0) + LIQUID (x(Ho) 0.08343) + CU5HO_C15B (x(Ho) 0.16667) |
| CuHo-09Wan.tdb | 1142.47 | CU9HO2 (x(Ho) 0.18182) + LIQUID (x(Ho) 0.28704) + CU2HO (x(Ho) 0.33333) |
| CuHo-09Wan.tdb | 1142.47 | CU9HO2 (x(Ho) 0.18182) + LIQUID (x(Ho) 0.2871) + CU2HO (x(Ho) 0.33333) |
| CuHo-09Wan.tdb | 1103.13 | CUHO_B2 (x(Ho) 0.5) + LIQUID (x(Ho) 0.70971) + HCP_A3 (x(Ho) 0.99964) |
Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull CuHo-09Wan-newHo
Invariant reactions (literature)
| T (K) | Reaction / phases | Compositions (mole fraction) | Class | Source | Location | Quote |
|---|---|---|---|---|---|---|
| 1283.15 | congruent melting: L ↔ CuHo | L: Ho 0.5; CuHo: Ho 0.5 | model | [1] Wang 2009 | Table 3, p. 4, row 21 report | |
| 1283.15 | congruent melting: L ↔ CuHo | L: Ho 0.5; CuHo: Ho 0.5 | experimental | [1] Wang 2009 cites Subramanian 1994 | Table 3, p. 4, row 20 report | |
| 1263.15 | congruent melting: L ↔ Cu9Ho2 | L: Ho 0.182; Cu9Ho2: Ho 0.182 | experimental | [1] Wang 2009 cites Subramanian 1994 | Table 3, p. 4, row 8 report | |
| 1263.15 | congruent melting: L ↔ Cu9Ho2 | L: Ho 0.182; Cu9Ho2: Ho 0.182 | model | [1] Wang 2009 | Table 3, p. 4, row 9 report | |
| 1258.15 | peritectic: L + Cu9Ho2 ↔ βCu5Ho | L: Ho 0.157; Cu9Ho2: Ho 0.182; βCu5Ho: Ho 0.167 | experimental | [1] Wang 2009 cites Subramanian 1994 | Table 3, p. 4, row 4 report | |
| 1258.15 | peritectic: L + Cu9Ho2 ↔ βCu5Ho | L: Ho 0.164; Cu9Ho2: Ho 0.182; βCu5Ho: Ho 0.167 | model | [1] Wang 2009 | Table 3, p. 4, row 5 report | |
| 1243.15 | polymorphic: αCu5Ho ↔ βCu5Ho | αCu5Ho: Cu 0.833333, Ho 0.166667; βCu5Ho: Ho 0.167 | experimental | [1] Wang 2009 cites Subramanian 1994 | Table 3, p. 4, row 6 report | |
| 1243.15 | polymorphic: αCu5Ho ↔ βCu5Ho | αCu5Ho: Cu 0.833333, Ho 0.166667; βCu5Ho: Ho 0.167 | model | [1] Wang 2009 | Table 3, p. 4, row 7 report | |
| 1193.15 | peritectic: L + Cu9Ho2 ↔ Cu7Ho2 | L: Ho 0.26; Cu9Ho2: Ho 0.182; Cu7Ho2: Ho 0.222 | model | [1] Wang 2009 | Table 3, p. 4, row 11 report | |
| 1193.15 | peritectic: L + Cu9Ho2 ↔ Cu7Ho2 | Cu9Ho2: Ho 0.182; Cu7Ho2: Ho 0.222 | experimental | [1] Wang 2009 cites Subramanian 1994 | Table 3, p. 4, row 10 report | |
| 1188.15 | congruent melting: L ↔ Cu2Ho | L: Ho 0.333; Cu2Ho: Ho 0.333 | experimental | [1] Wang 2009 cites Subramanian 1994 | Table 3, p. 4, row 16 report | |
| 1163.15 | congruent melting: L ↔ Cu2Ho | L: Ho 0.333; Cu2Ho: Ho 0.333 | model | [1] Wang 2009 | Table 3, p. 4, row 17 report | |
| 1155.15 | eutectic: L ↔ Cu2Ho + CuHo | L: Ho 0.356; Cu2Ho: Ho 0.333; CuHo: Ho 0.5 | model | [1] Wang 2009 | Table 3, p. 4, row 19 report | |
| 1153.15 | metatectic/catatectic: Cu7Ho2 ↔ L + Cu9Ho2 | Cu7Ho2: Ho 0.222; L: Ho 0.282; Cu9Ho2: Ho 0.182 | model | [1] Wang 2009 | Table 3, p. 4, row 13 report | |
| 1153.15 | metatectic/catatectic: Cu7Ho2 ↔ L + Cu9Ho2 | Cu7Ho2: Ho 0.222; Cu9Ho2: Ho 0.182 | experimental | [1] Wang 2009 cites Subramanian 1994 | Table 3, p. 4, row 12 report | |
| 1149.15 | eutectic: L ↔ (Cu) + Cu5Ho | L: Ho 0.083; (Cu): Ho 0; Cu5Ho: Ho 0.167 | model | [1] Wang 2009 | Table 3, p. 4, row 3 report | |
| 1148.15 | eutectic: L ↔ Cu2Ho + CuHo | L: Ho 0.352; Cu2Ho: Ho 0.333; CuHo: Ho 0.5 | experimental | [1] Wang 2009 cites Subramanian 1994 | Table 3, p. 4, row 18 report | |
| 1148.15 | eutectic: L ↔ (Cu) + Cu5Ho | L: Ho 0.095; (Cu): Ho 2.000e-4; Cu5Ho: Ho 0.167 | experimental | [1] Wang 2009 cites Subramanian 1994 | Table 3, p. 4, row 2 report | |
| 1143.15 | eutectic: L ↔ Cu9Ho2 + Cu2Ho | L: Ho 0.314; Cu9Ho2: Ho 0.182; Cu2Ho: Ho 0.333 | experimental | [1] Wang 2009 cites Subramanian 1994 | Table 3, p. 4, row 14 report | |
| 1143.15 | eutectic: L ↔ Cu9Ho2 + Cu2Ho | L: Ho 0.287; Cu9Ho2: Ho 0.182; Cu2Ho: Ho 0.333 | model | [1] Wang 2009 | Table 3, p. 4, row 15 report | |
| 1137.15 | eutectic: L ↔ (Cu) + Cu5Ho | (Cu): Ho 2.000e-4; Cu5Ho: Cu 0.833333, Ho 0.166667 | experimental | [1] Wang 2009 cites Wunderlin 1963 | Table 3, p. 4, row 1 report | |
| 1103.15 | eutectic: L ↔ CuHo + (Ho) | L: Ho 0.709; CuHo: Ho 0.5; (Ho): Ho 1 | model | [1] Wang 2009 | Table 3, p. 4, row 23 report | |
| 1103.15 | eutectic: L ↔ CuHo + (Ho) | L: Ho 0.7; CuHo: Ho 0.5; (Ho): Ho 1 | experimental | [1] Wang 2009 cites Subramanian 1994 | Table 3, p. 4, row 22 report |
Sources
Reporting papers the values were read from (a value cited from another work names that work in its row).
- C.P. Wang, S.H. Guo, X.J. Liu, A.T. Tang, F.S. Pan, Thermodynamic assessments of the Ho–X (X: Cu, Mo, V) systems, Journal of Alloys and Compounds 487, 173-178 (2009). doi:10.1016/j.jallcom.2009.08.042