Pd–Y system
66 accepted literature values from 2 paper(s) (experimental 18, model 48); 1 calculated phase diagram(s).
Data: JSON · CSV · interactive explorer · interactive phase diagram · phases (15) · papers (bibliography) · Markdown
| Evidence class | Values |
|---|---|
| experimental | 18 |
| model | 48 |
| Property group | Values |
|---|---|
| invariant reaction | 26 |
| phase transition | 10 |
| formation | 28 |
| mixing / partial | 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.
| TDB file | Assessment | SHA-256 | Links |
|---|---|---|---|
| PdY-00Du.tdb | Z. Du, H. Yang, C. Li, J. Alloys Compd., 297, 185-91(2000). doi:10.1016/S0925-8388(99)00582-4 | d90b41729a78d724a3681a2acc17a09875ad34889671887a107f47222af6a072 | viewer · TDB · JSON |
| TDB file | T (K) | Phases at the invariant |
|---|---|---|
| PdY-00Du.tdb | 1751.15 | LIQUID (x(Y) 0.98206) + HCP_A3 (x(Y) 1) + BCC_A2 (x(Y) 1) |
| PdY-00Du.tdb | 1653.06 | PD4Y3 (x(Y) 0.42857) + LIQUID (x(Y) 0.45344) + PDY_B2 (x(Y) 0.5) |
| PdY-00Du.tdb | 1653.06 | PD4Y3 (x(Y) 0.42857) + LIQUID (x(Y) 0.45336) + PDY_B2 (x(Y) 0.5) |
| PdY-00Du.tdb | 1577.1 | PD3Y_L12 (x(Y) 0.25) + PD2Y (x(Y) 0.33333) + LIQUID (x(Y) 0.34845) |
| PdY-00Du.tdb | 1577.1 | PD3Y_L12 (x(Y) 0.25) + PD2Y (x(Y) 0.33333) + LIQUID (x(Y) 0.34836) |
| PdY-00Du.tdb | 1546.25 | LIQUID (x(Y) 0.37822) + PD3Y2_HT (x(Y) 0.4) + PD4Y3 (x(Y) 0.42857) |
| PdY-00Du.tdb | 1546.25 | LIQUID (x(Y) 0.37829) + PD3Y2_HT (x(Y) 0.4) + PD4Y3 (x(Y) 0.42857) |
| PdY-00Du.tdb | 1516.51 | PD2Y (x(Y) 0.33333) + LIQUID (x(Y) 0.36927) + PD3Y2_HT (x(Y) 0.4) |
| PdY-00Du.tdb | 1516.51 | PD2Y (x(Y) 0.33333) + LIQUID (x(Y) 0.3693) + PD3Y2_HT (x(Y) 0.4) |
| PdY-00Du.tdb | 1516.51 | PD2Y (x(Y) 0.33333) + LIQUID (x(Y) 0.36923) + PD3Y2_HT (x(Y) 0.4) |
| PdY-00Du.tdb | 1476.84 | FCC_A1 (x(Y) 0.12567) + LIQUID (x(Y) 0.14359) + PD3Y_L12 (x(Y) 0.20315) |
| PdY-00Du.tdb | 1317.74 | PD3Y2_HT (x(Y) 0.4) + PD3Y2_LT (x(Y) 0.4) + PD4Y3 (x(Y) 0.42857) |
| PdY-00Du.tdb | 1317.74 | PD2Y (x(Y) 0.33333) + PD3Y2_LT (x(Y) 0.4) + PD3Y2_HT (x(Y) 0.4) |
| PdY-00Du.tdb | 1232.82 | PDY_B2 (x(Y) 0.5016) + PD2Y3 (x(Y) 0.6) + LIQUID (x(Y) 0.63856) |
| PdY-00Du.tdb | 1182.99 | LIQUID (x(Y) 0.74009) + PDY3_D011 (x(Y) 0.75) + HCP_A3 (x(Y) 1) |
| PdY-00Du.tdb | 1182.94 | PD2Y5 (x(Y) 0.71429) + LIQUID (x(Y) 0.7396) + PDY3_D011 (x(Y) 0.75) |
| PdY-00Du.tdb | 1181.97 | PD2Y3 (x(Y) 0.6) + LIQUID (x(Y) 0.68798) + PD2Y5 (x(Y) 0.71429) |
| PdY-00Du.tdb | 1173.65 | PDY_B2 (x(Y) 0.50065) + PDY_B33 (x(Y) 0.50099) + PD2Y3 (x(Y) 0.6) |
| PdY-00Du.tdb | 1173.65 | PDY_B2 (x(Y) 0.50065) + PDY_B33 (x(Y) 0.50099) + PD2Y3 (x(Y) 0.6) |
| PdY-00Du.tdb | 1143.46 | PD4Y3 (x(Y) 0.42857) + PDY_B33 (x(Y) 0.5) + PDY_B2 (x(Y) 0.5) |
| PdY-00Du.tdb | 777.05 | FCC_A1 (x(Y) 0.1145) + PD7Y (x(Y) 0.125) + PD3Y_L12 (x(Y) 0.20821) |
| PdY-00Du.tdb | 777.05 | FCC_A1 (x(Y) 0.1145) + PD7Y (x(Y) 0.125) + PD3Y_L12 (x(Y) 0.20821) |
Convex hulls: Materials Project DFT hull · OQMD DFT hull
Invariant reactions (literature)
| T (K) | Reaction / phases | Compositions (mole fraction) | Class | Source | Location | Quote |
|---|---|---|---|---|---|---|
| 1752 | Liq.+b.c.c.(Y)->h.c.p.(Y) | Liq.: Y 0.9808; b.c.c.(Y): Y 1; h.c.p.(Y): Y 1 | model | [1] Du 2000 | Table 2, p. 5, row 1 report | |
| 1751 | Liq.+b.c.c.(Y)->h.c.p.(Y) | Liq.: Y 0.98; b.c.c.(Y): Y 1; h.c.p.(Y): Y 1 | experimental | [1] Du 2000 cites Loebich 1973 doi | Table 2, p. 5, row 2 report | |
| 1658 | eutectic: Liq.->βPdY+Pd4Y3 | Liq.: Y 0.47; βPdY: Y 0.51; Pd4Y3: Y 0.428571 | experimental | [1] Du 2000 cites Loebich 1973 doi | Table 2, p. 5, row 16 report | |
| 1655 | eutectic: Liq.->βPdY+Pd4Y3 | Liq.: Y 0.4535; βPdY: Y 0.5; Pd4Y3: Y 0.428571 | model | [1] Du 2000 | Table 2, p. 5, row 15 report | |
| 1579 | Liq.+Pd3Y->Pd2Y | Liq.: Y 0.3484; Pd3Y: Y 0.25; Pd2Y: Y 0.333333 | model | [1] Du 2000 | Table 2, p. 5, row 23 report | |
| 1578 | Liq.+Pd3Y->Pd2Y | Liq.: Y 0.34; Pd3Y: Y 0.25; Pd2Y: Y 0.333333 | experimental | [1] Du 2000 cites Loebich 1973 doi | Table 2, p. 5, row 24 report | |
| 1548 | Liq.+Pd4Y3->βPd3Y2 | Liq.: Y 0.3782; Pd4Y3: Y 0.428571; βPd3Y2: Y 0.4 | model | [1] Du 2000 | Table 2, p. 5, row 19 report | |
| 1547 | Liq.+Pd4Y3->βPd3Y2 | Liq.: Y 0.38; Pd4Y3: Y 0.428571; βPd3Y2: Y 0.4 | experimental | [1] Du 2000 cites Loebich 1973 doi | Table 2, p. 5, row 20 report | |
| 1518 | eutectic: Liq.->βPd3Y2+Pd2Y | Liq.: Y 0.37; βPd3Y2: Y 0.4; Pd2Y: Y 0.333333 | experimental | [1] Du 2000 cites Loebich 1973 doi | Table 2, p. 5, row 22 report | |
| 1518 | eutectic: Liq.->βPd3Y2+Pd2Y | Liq.: Y 0.3692; βPd3Y2: Y 0.4; Pd2Y: Y 0.333333 | model | [1] Du 2000 | Table 2, p. 5, row 21 report | |
| 1478 | eutectic: Liq.->Pd3Y+f.c.c.(Pd) | Liq.: Y 0.15; Pd3Y: Y 0.205; f.c.c.(Pd): Y 0.13 | experimental | [1] Du 2000 cites Loebich 1973 doi | Table 2, p. 5, row 28 report | |
| 1478 | eutectic: Liq.->Pd3Y+f.c.c.(Pd) | Liq.: Y 0.1436; Pd3Y: Y 0.2031; f.c.c.(Pd): Y 0.1257 | model | [1] Du 2000 | Table 2, p. 5, row 27 report | |
| 1233 | Liq.+βPdY->Pd2Y3 | Liq.: Y 0.66; βPdY: Y 0.52; Pd2Y3: Y 0.6 | experimental | [1] Du 2000 cites Loebich 1973 doi | Table 2, p. 5, row 12 report | |
| 1232 | Liq.+βPdY->Pd2Y3 | Liq.: Y 0.6384; βPdY: Y 0.5016; Pd2Y3: Y 0.6 | model | [1] Du 2000 | Table 2, p. 5, row 11 report | |
| 1181 | Liq.+h.c.p.(Y)->PdY3 | Liq.: Y 0.745; h.c.p.(Y): Y 1; PdY3: Y 0.75 | experimental | [1] Du 2000 cites Loebich 1973 doi | Table 2, p. 5, row 4 report | |
| 1181 | eutectic: Liq.->Pd2Y5+PdY3 | Liq.: Y 0.7397; Pd2Y5: Y 0.714286; PdY3: Y 0.75 | model | [1] Du 2000 | Table 2, p. 5, row 5 report | |
| 1181 | Liq.+h.c.p.(Y)->PdY3 | Liq.: Y 0.7405; h.c.p.(Y): Y 1; PdY3: Y 0.75 | model | [1] Du 2000 | Table 2, p. 5, row 3 report | |
| 1180 | eutectic: Liq.->Pd2Y5+Pd2Y3 | Liq.: Y 0.688; Pd2Y5: Y 0.714286; Pd2Y3: Y 0.6 | model | [1] Du 2000 | Table 2, p. 5, row 9 report | |
| 1176 | eutectic: Liq.->Pd2Y5+Pd2Y3 | Liq.: Y 0.7; Pd2Y5: Y 0.714286; Pd2Y3: Y 0.6 | experimental | [1] Du 2000 cites Loebich 1973 doi | Table 2, p. 5, row 10 report | |
| 1173 | βPdY+Pd2Y3->αPdY | βPdY: Y 0.5006; Pd2Y3: Y 0.6; αPdY: Y 0.501 | model | [1] Du 2000 | Table 2, p. 5, row 33 report | |
| 1173 | βPdY+Pd2Y3->αPdY | βPdY: Y 0.52; Pd2Y3: Y 0.6; αPdY: Y 0.52 | experimental | [1] Du 2000 cites Loebich 1973 doi | Table 2, p. 5, row 34 report | |
| 1168 | eutectic: Liq.->Pd2Y5+PdY3 | Liq.: Y 0.73; Pd2Y5: Y 0.714286; PdY3: Y 0.75 | experimental | [1] Du 2000 cites Loebich 1973 doi | Table 2, p. 5, row 6 report | |
| 1143 | βPdY->Pd4Y3+αPdY | βPdY: Y 0.5; Pd4Y3: Y 0.428571; αPdY: Y 0.5 | model | [1] Du 2000 | Table 2, p. 5, row 35 report | |
| 1143 | βPdY->Pd4Y3+αPdY | βPdY: Y 0.51; Pd4Y3: Y 0.428571; αPdY: Y 0.51 | experimental | [1] Du 2000 cites Loebich 1973 doi | Table 2, p. 5, row 36 report | |
| 777 | F.c.c.(Pd)+Pd3Y->Pd7Y | F.c.c.(Pd): Y 0.1145; Pd3Y: Y 0.2082; Pd7Y: Y 0.125 | model | [1] Du 2000 | Table 2, p. 5, row 29 report | |
| 777 | F.c.c.(Pd)+Pd3Y->Pd7Y | F.c.c.(Pd): Y 0.105; Pd3Y: Y 0.21; Pd7Y: Y 0.125 | experimental | [1] Du 2000 cites Loebich 1973 doi | Table 2, p. 5, row 30 report |
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.
| Phase | Compound | Value | T (K) | Class | MP DFT (kJ/mol-atom) | OQMD DFT (kJ/mol-atom) | Source | Location | Quote |
|---|---|---|---|---|---|---|---|---|---|
| Pd2Y | Pd2Y | -94.33 kJ/mol-atom | 298.15 | model | -58.096 (mp-aaacimin) | -77.774 (oqmd-1435845) | [2] Kardellass 2020 cites Du 2000 doi | Table 3, p. 5, row 60 report | |
| Pd2Y5 | -68.548 kJ/mol-atom | 298.15 | model | [2] Kardellass 2020 cites Du 2000 doi | Table 3, p. 5, row 12 report | ||||
| Pd3Y | Pd3Y | -96.08 kJ/mol-atom | 298.15 | model | -83.156 (mp-aaaaaavn) | -82.911 (oqmd-17986) | [2] Kardellass 2020 cites Du 2000 doi | Table 3, p. 5, row 2 report | |
| Pd3Y | Pd3Y | -58.188 kJ/mol-atom | 298.15 | model | -83.156 (mp-aaaaaavn) | -82.911 (oqmd-17986) | [2] Kardellass 2020 cites Du 2000 doi | Table 3, p. 5, row 72 report | |
| Pd4Y3 | Pd4Y3 | -92.3 kJ/mol-atom | 298.15 | model | -89.218 (mp-aaackveh) | -89.174 (oqmd-1437089) | [2] Kardellass 2020 cites Du 2000 doi | Table 3, p. 5, row 35 report | |
| Pd7RE | -58.188 kJ/mol-atom | 298.15 | model | [2] Kardellass 2020 cites Du 2000 doi | Table 3, p. 6, row 6 report | ||||
| Pd7Y | -58.188 kJ/mol-atom | 298.15 | model | [2] Kardellass 2020 cites Du 2000 doi | Table 3, p. 5, row 72 report | ||||
| PdRE3 | -62.254 kJ/mol-atom | 298.15 | model | [2] Kardellass 2020 cites Du 2000 doi | Table 3, p. 6, row 1 report | ||||
| PdY | PdY | -90.583 kJ/mol-atom | 298.15 | model | -87.841 (mp-aaacirdg) | -88.327 (oqmd-1366850) | [2] Kardellass 2020 cites Du 2000 doi | Table 3, p. 5, row 22 report | |
| PdY3 | PdY3 | -62.254 kJ/mol-atom | 298.15 | model | -45.639 (mp-aaacqsqz) | -45.911 (oqmd-1437344) | [2] Kardellass 2020 cites Du 2000 doi | Table 3, p. 5, row 67 report |
Other properties
Phase transition (10)
| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---|---|---|---|---|---|---|
| Phase transition | 1185 K | 1185 | Liq.->Pd2Y5 Liq.: Y 0.714286; Pd2Y5: Y 0.714286 | model | [1] Du 2000 | Table 2, p. 5, row 7 report | |
| Phase transition | 1188 K | 1188 | Liq.->Pd2Y5 Liq.: Y 0.714286; Pd2Y5: Y 0.714286 | experimental | [1] Du 2000 cites Loebich 1973 doi | Table 2, p. 5, row 8 report | |
| Phase transition | 1318 K | 1318 | αPd3Y2->βPd3Y2 αPd3Y2: Y 0.4; βPd3Y2: Y 0.4 | model | [1] Du 2000 | Table 2, p. 5, row 31 report | |
| Phase transition | 1318 K | 1318 | αPd3Y2->βPd3Y2 αPd3Y2: Y 0.4; βPd3Y2: Y 0.4 | experimental | [1] Du 2000 cites Loebich 1973 doi | Table 2, p. 5, row 32 report | |
| Phase transition | 1683 K | 1683 | Liq.->Pd4Y3 Liq.: Y 0.428571; Pd4Y3: Y 0.428571 | experimental | [1] Du 2000 cites Loebich 1973 doi | Table 2, p. 5, row 18 report | |
| Phase transition | 1684 K | 1684 | Liq.->Pd4Y3 Liq.: Y 0.428571; Pd4Y3: Y 0.428571 | model | [1] Du 2000 | Table 2, p. 5, row 17 report | |
| Phase transition | 1723 K | 1723 | Liq.->βPdY Liq.: Y 0.5; βPdY: Y 0.5 | experimental | [1] Du 2000 cites Loebich 1973 doi | Table 2, p. 5, row 14 report | |
| Phase transition | 1724 K | 1724 | Liq.->βPdY Liq.: Y 0.4985; βPdY: Y 0.5 | model | [1] Du 2000 | Table 2, p. 5, row 13 report | |
| Phase transition | 1973 K | 1973 | Liq.->Pd3Y Liq.: Y 0.25; Pd3Y: Y 0.25 | experimental | [1] Du 2000 cites Loebich 1973 doi | Table 2, p. 5, row 26 report | |
| Phase transition | 1973 K | 1973 | Liq.->Pd3Y Liq.: Y 0.249; Pd3Y: Y 0.25 | model | [1] Du 2000 | Table 2, p. 5, row 25 report |
Formation (18)
| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---|---|---|---|---|---|---|
| Entropy of formation printed: ΔfS | 8.189 J/mol-atom/K | 298.15 | Pd2Y alloy: Pd 0.666667, Y 0.333333 | model | [2] Kardellass 2020 cites Du 2000 doi | Table 3, p. 5, row 60 report | |
| Entropy of formation printed: ΔfS | 13.686 J/mol-atom/K | 298.15 | Pd2Y5 alloy: Pd 0.285714, Y 0.714286 | model | [2] Kardellass 2020 cites Du 2000 doi | Table 3, p. 5, row 12 report | |
| Entropy of formation printed: ΔfS | 12.943 J/mol-atom/K | 298.15 | Pd3Y alloy: Pd 0.75, Y 0.25 | model | [2] Kardellass 2020 cites Du 2000 doi | Table 3, p. 5, row 72 report | |
| Entropy of formation printed: ΔfS | 12.51 J/mol-atom/K | 298.15 | Pd3Y alloy: Pd 0.75, Y 0.25 | model | [2] Kardellass 2020 cites Du 2000 doi | Table 3, p. 5, row 2 report | |
| Entropy of formation | 4.396 J/mol-atom/K | 298.15 | Pd4Y3 alloy: Pd 0.571429, Y 0.428571 | model | [2] Kardellass 2020 cites Du 2000 doi | Table 3, p. 5, row 35 report | |
| Entropy of formation printed: Entropies of formation | 12.943 J/mol-atom/K | 298.15 | Pd7RE alloy: Pd 0.875, Y 0.125 | model | [2] Kardellass 2020 cites Du 2000 doi | Table 3, p. 6, row 6 report | |
| Entropy of formation | 12.943 J/mol-atom/K | 298.15 | Pd7Y alloy: Pd 0.875, Y 0.125 | model | [2] Kardellass 2020 cites Du 2000 doi | Table 3, p. 5, row 72 report | |
| Entropy of formation printed: Entropies of formation | 13.89 J/mol-atom/K | 298.15 | PdRE3 alloy: Pd 0.25, Y 0.75 | model | [2] Kardellass 2020 cites Du 2000 doi | Table 3, p. 6, row 1 report | |
| Entropy of formation | 4.145 J/mol-atom/K | 298.15 | PdY alloy: Pd 0.5, Y 0.5 | model | [2] Kardellass 2020 cites Du 2000 doi | Table 3, p. 5, row 22 report | |
| Entropy of formation printed: ΔfS | 13.89 J/mol-atom/K | 298.15 | PdY3 alloy: Pd 0.25, Y 0.75 | model | [2] Kardellass 2020 cites Du 2000 doi | Table 3, p. 5, row 67 report | |
| Gibbs energy of formation printed: Gibbs free energy of formation | -96.7716 kJ/mol-atom | 298.15 | Pd2Y alloy: Pd 0.666667, Y 0.333333 | model | [2] Kardellass 2020 cites Du 2000 doi | Table 3, p. 5, row 60 report | |
| Gibbs energy of formation printed: ΔfG | -72.6285 kJ/mol-atom | 298.15 | Pd2Y5 alloy: Pd 0.285714, Y 0.714286 | model | [2] Kardellass 2020 cites Du 2000 doi | Table 3, p. 5, row 12 report | |
| Gibbs energy of formation printed: ΔfG | -62.047 kJ/mol-atom | 298.15 | Pd3Y alloy: Pd 0.75, Y 0.25 | model | [2] Kardellass 2020 cites Du 2000 doi | Table 3, p. 5, row 72 report | |
| Gibbs energy of formation printed: ΔfG | -99.8098 kJ/mol-atom | 298.15 | Pd3Y alloy: Pd 0.75, Y 0.25 | model | [2] Kardellass 2020 cites Du 2000 doi | Table 3, p. 5, row 2 report | |
| Gibbs energy of formation printed: Gibbs free energy of formation | -93.6107 kJ/mol-atom | 298.15 | Pd4Y3 alloy: Pd 0.571429, Y 0.428571 | model | [2] Kardellass 2020 cites Du 2000 doi | Table 3, p. 5, row 35 report | |
| Gibbs energy of formation printed: Gibbs free energy of formation | -62.047 kJ/mol-atom | 298.15 | Pd7Y alloy: Pd 0.875, Y 0.125 | model | [2] Kardellass 2020 cites Du 2000 doi | Table 3, p. 5, row 72 report | |
| Gibbs energy of formation printed: Gibbs free energy of formation | -91.8188 kJ/mol-atom | 298.15 | PdY alloy: Pd 0.5, Y 0.5 | model | [2] Kardellass 2020 cites Du 2000 doi | Table 3, p. 5, row 22 report | |
| Gibbs energy of formation printed: Gibbs free energy of formation | -66.3953 kJ/mol-atom | 298.15 | PdY3 alloy: Pd 0.25, Y 0.75 | model | [2] Kardellass 2020 cites Du 2000 doi | Table 3, p. 5, row 67 report |
Mixing / partial (2)
| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---|---|---|---|---|---|---|
| Gibbs energy of mixing printed: Gibbs free Energies | -62.047 kJ/mol-atom | 298.15 | Pd7RE alloy: Pd 0.875, Y 0.125 | model | [2] Kardellass 2020 cites Du 2000 doi | Table 3, p. 6, row 6 report | |
| Gibbs energy of mixing printed: Gibbs free Energies | -66.3953 kJ/mol-atom | 298.15 | PdY3 alloy: Pd 0.25, Y 0.75 | model | [2] Kardellass 2020 cites Du 2000 doi | Table 3, p. 6, row 1 report |
Sources
Reporting papers the values were read from (a value cited from another work names that work in its row).
- Z. Du, H. Yang, C. Li, Thermodynamic modeling of the Pd–Y system, Journal of Alloys and Compounds 297, 185-191 (2000). doi:10.1016/s0925-8388(99)00582-4
- Said Kardellass, Colette Servant, Isabelle Drouelle, Fatima Zahra Chrifi-Alaoui, Mohamed Idbenali, Alyen Abahazem et al., Calphad-type assessment of the Pd-Yb binary system supported by first-principles calculations – Part II: Results, Materials Today: Proceedings 24, 140-150 (2020). doi:10.1016/j.matpr.2019.08.196