Al–Pd system
33 accepted literature values from 3 paper(s) (experimental 7, model 26); 3 calculated phase diagram(s). 8 further extracted value(s) not accepted by the reader-agreement checks are only in the JSON/CSV.
Data: JSON · CSV · interactive explorer · interactive phase diagram · phases (13) · papers (bibliography) · Markdown
| Evidence class | Values |
|---|---|
| experimental | 7 |
| model | 26 |
| Property group | Values |
|---|---|
| invariant reaction | 31 |
| phase transition | 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 |
|---|---|---|---|
| AlPd-06Li.tdb | M. Li, C. Li, F. Wang, W. Zhang, Intermetallics, 14, 39-46(2006). doi:10.1016/j.intermet.2005.04.001 | fe0d623a97496170f1fa24422ebe3e9a7ab46a5f552f20fc036303f7caa86525 | viewer · TDB · JSON |
| AlPd-17Dur.tdb | L. Duriska, I. Cernickova, R. Cicka, J. Janovec, J. Phys. Conf. Ser., 809, 012008(2017). doi:10.1088/1742-6596/809/1/012008 | 53154de006cd77b7e2af3d8a057b9dc5148572a7b96c5cf7c2640f5e89aac066 | viewer · TDB · JSON |
| AlPd-21Hom.tdb | V. Homolova, A. Kroupa, Metals, 11, 1803(2021). doi:10.3390/met11111803 | 16c4c1ecb5dbb2e6a55795345963ab0269f77bb03c2d0c47c404af55ce852b11 | viewer · TDB · JSON |
| TDB file | T (K) | Phases at the invariant |
|---|---|---|
| AlPd-06Li.tdb | 1590.76 | LIQUID (x(Pd) 0.62364) + AL3PD5 (x(Pd) 0.625) + ALPD2_C37 (x(Pd) 0.65263) |
| AlPd-06Li.tdb | 1590.76 | LIQUID (x(Pd) 0.62367) + AL3PD5 (x(Pd) 0.625) + ALPD2_C37 (x(Pd) 0.65265) |
| AlPd-06Li.tdb | 1588.64 | ALPD_B2 (x(Pd) 0.52266) + LIQUID (x(Pd) 0.61815) + AL3PD5 (x(Pd) 0.625) |
| AlPd-06Li.tdb | 1588.64 | ALPD_B2 (x(Pd) 0.52267) + LIQUID (x(Pd) 0.61817) + AL3PD5 (x(Pd) 0.625) |
| AlPd-06Li.tdb | 1329.76 | ALPD2_C37 (x(Pd) 0.72474) + LIQUID (x(Pd) 0.77454) + FCC_A1 (x(Pd) 0.81146) |
| AlPd-06Li.tdb | 1224.51 | LIQUID (x(Pd) 0.28236) + AL3PD2_D513 (x(Pd) 0.4064) + ALPD_B2 (x(Pd) 0.44239) |
| AlPd-06Li.tdb | 1131.17 | AL2PD5 (x(Pd) 0.71407) + ALPD2_C37 (x(Pd) 0.72644) + FCC_A1 (x(Pd) 0.81001) |
| AlPd-06Li.tdb | 1063.8 | LIQUID (x(Pd) 0.22067) + AL21PD8 (x(Pd) 0.27586) + AL3PD2_D513 (x(Pd) 0.39611) |
| AlPd-06Li.tdb | 1063.8 | LIQUID (x(Pd) 0.22062) + AL21PD8 (x(Pd) 0.27586) + AL3PD2_D513 (x(Pd) 0.39611) |
| AlPd-06Li.tdb | 1055.48 | LIQUID (x(Pd) 0.20885) + AL3PD (x(Pd) 0.25) + AL21PD8 (x(Pd) 0.27586) |
| AlPd-06Li.tdb | 1055.48 | LIQUID (x(Pd) 0.20853) + AL3PD (x(Pd) 0.25) + AL21PD8 (x(Pd) 0.27586) |
| AlPd-06Li.tdb | 1055.48 | LIQUID (x(Pd) 0.20879) + AL3PD (x(Pd) 0.25) + AL21PD8 (x(Pd) 0.27586) |
| AlPd-06Li.tdb | 891.45 | FCC_A1 (x(Pd) 8.000e-5) + LIQUID (x(Pd) 0.06513) + AL3PD (x(Pd) 0.25) |
| AlPd-06Li.tdb | 891.45 | FCC_A1 (x(Pd) 8.000e-5) + LIQUID (x(Pd) 0.065) + AL3PD (x(Pd) 0.25) |
| AlPd-06Li.tdb | 888.72 | ALPD_B2 (x(Pd) 0.54877) + AL3PD5 (x(Pd) 0.625) + ALPD2_C37 (x(Pd) 0.65208) |
| AlPd-06Li.tdb | 876.82 | FCC_A1 (x(Pd) 6.000e-5) + AL4PD (x(Pd) 0.2) + AL3PD (x(Pd) 0.25) |
| AlPd-06Li.tdb | 876.82 | FCC_A1 (x(Pd) 6.000e-5) + AL4PD (x(Pd) 0.2) + AL3PD (x(Pd) 0.25) |
| AlPd-06Li.tdb | 876.82 | FCC_A1 (x(Pd) 6.000e-5) + AL4PD (x(Pd) 0.2) + AL3PD (x(Pd) 0.25) |
| AlPd-06Li.tdb | 852.09 | AL4PD (x(Pd) 0.2) + AL3PD (x(Pd) 0.25) + AL21PD8 (x(Pd) 0.27586) |
| AlPd-17Dur.tdb | 1590.76 | LIQUID (x(Pd) 0.62364) + AL3PD5 (x(Pd) 0.625) + ALPD2_C37 (x(Pd) 0.65263) |
| AlPd-17Dur.tdb | 1590.76 | LIQUID (x(Pd) 0.62367) + AL3PD5 (x(Pd) 0.625) + ALPD2_C37 (x(Pd) 0.65265) |
| AlPd-17Dur.tdb | 1588.64 | ALPD_B2 (x(Pd) 0.52266) + LIQUID (x(Pd) 0.61815) + AL3PD5 (x(Pd) 0.625) |
| AlPd-17Dur.tdb | 1588.64 | ALPD_B2 (x(Pd) 0.52267) + LIQUID (x(Pd) 0.61817) + AL3PD5 (x(Pd) 0.625) |
| AlPd-17Dur.tdb | 1329.76 | ALPD2_C37 (x(Pd) 0.72474) + LIQUID (x(Pd) 0.77454) + FCC_A1 (x(Pd) 0.81146) |
| AlPd-17Dur.tdb | 1224.51 | LIQUID (x(Pd) 0.28236) + AL3PD2_D513 (x(Pd) 0.4064) + ALPD_B2 (x(Pd) 0.44239) |
| AlPd-17Dur.tdb | 1131.17 | AL2PD5 (x(Pd) 0.71407) + ALPD2_C37 (x(Pd) 0.72644) + FCC_A1 (x(Pd) 0.81001) |
| AlPd-17Dur.tdb | 1056.64 | LIQUID (x(Pd) 0.21808) + AL3PD (x(Pd) 0.29958) + AL3PD2_D513 (x(Pd) 0.39566) |
| AlPd-17Dur.tdb | 891.98 | AL21PD8 (x(Pd) 0.27586) + AL3PD (x(Pd) 0.28903) + AL3PD2_D513 (x(Pd) 0.39241) |
| AlPd-17Dur.tdb | 888.72 | ALPD_B2 (x(Pd) 0.54877) + AL3PD5 (x(Pd) 0.625) + ALPD2_C37 (x(Pd) 0.65208) |
| AlPd-17Dur.tdb | 879.9 | FCC_A1 (x(Pd) 9.000e-5) + LIQUID (x(Pd) 0.08027) + AL3PD (x(Pd) 0.26002) |
| AlPd-17Dur.tdb | 877.27 | FCC_A1 (x(Pd) 9.000e-5) + AL4PD (x(Pd) 0.2) + AL3PD (x(Pd) 0.25986) |
| AlPd-17Dur.tdb | 852.21 | AL4PD (x(Pd) 0.2) + AL3PD (x(Pd) 0.2597) + AL21PD8 (x(Pd) 0.27586) |
| AlPd-17Dur.tdb | 852.21 | AL4PD (x(Pd) 0.2) + AL3PD (x(Pd) 0.2597) + AL21PD8 (x(Pd) 0.27586) |
| AlPd-21Hom.tdb | 1592.92 | LIQUID (x(Pd) 0.62428) + AL3PD5 (x(Pd) 0.625) + ALPD2_C37 (x(Pd) 0.65303) |
| AlPd-21Hom.tdb | 1592.92 | LIQUID (x(Pd) 0.62432) + AL3PD5 (x(Pd) 0.625) + ALPD2_C37 (x(Pd) 0.65306) |
| AlPd-21Hom.tdb | 1585.67 | B2_BCC (x(Pd) 0.50325) + LIQUID (x(Pd) 0.61258) + AL3PD5 (x(Pd) 0.625) |
| AlPd-21Hom.tdb | 1585.67 | B2_BCC (x(Pd) 0.50325) + LIQUID (x(Pd) 0.61261) + AL3PD5 (x(Pd) 0.625) |
| AlPd-21Hom.tdb | 1585.67 | B2_BCC (x(Pd) 0.50325) + LIQUID (x(Pd) 0.61258) + AL3PD5 (x(Pd) 0.625) |
| AlPd-21Hom.tdb | 1329.76 | ALPD2_C37 (x(Pd) 0.72474) + LIQUID (x(Pd) 0.77454) + FCC_A1 (x(Pd) 0.81146) |
| AlPd-21Hom.tdb | 1206.03 | LIQUID (x(Pd) 0.26573) + AL3PD2_D513 (x(Pd) 0.4037) + B2_BCC (x(Pd) 0.45989) |
| AlPd-21Hom.tdb | 1131.17 | AL2PD5 (x(Pd) 0.71407) + ALPD2_C37 (x(Pd) 0.72644) + FCC_A1 (x(Pd) 0.81001) |
| AlPd-21Hom.tdb | 1059.13 | LIQUID (x(Pd) 0.2161) + AL3PD (x(Pd) 0.25) + AL3PD2_D513 (x(Pd) 0.39562) |
| AlPd-21Hom.tdb | 1059.13 | LIQUID (x(Pd) 0.21602) + AL3PD (x(Pd) 0.25) + AL3PD2_D513 (x(Pd) 0.3956) |
| AlPd-21Hom.tdb | 1020.43 | AL3PD (x(Pd) 0.25) + AL21PD8 (x(Pd) 0.27586) + AL3PD2_D513 (x(Pd) 0.39505) |
| AlPd-21Hom.tdb | 1020.43 | AL3PD (x(Pd) 0.25) + AL21PD8 (x(Pd) 0.27586) + AL3PD2_D513 (x(Pd) 0.39504) |
| AlPd-21Hom.tdb | 891.45 | FCC_A1 (x(Pd) 8.000e-5) + LIQUID (x(Pd) 0.06513) + AL3PD (x(Pd) 0.25) |
| AlPd-21Hom.tdb | 891.45 | FCC_A1 (x(Pd) 8.000e-5) + LIQUID (x(Pd) 0.065) + AL3PD (x(Pd) 0.25) |
| AlPd-21Hom.tdb | 889.46 | B2_BCC (x(Pd) 0.52301) + AL3PD5 (x(Pd) 0.625) + ALPD2_C37 (x(Pd) 0.65068) |
| AlPd-21Hom.tdb | 889.46 | B2_BCC (x(Pd) 0.52301) + AL3PD5 (x(Pd) 0.625) + ALPD2_C37 (x(Pd) 0.65068) |
| AlPd-21Hom.tdb | 876.82 | FCC_A1 (x(Pd) 6.000e-5) + AL4PD (x(Pd) 0.2) + AL3PD (x(Pd) 0.25) |
| AlPd-21Hom.tdb | 876.82 | FCC_A1 (x(Pd) 6.000e-5) + AL4PD (x(Pd) 0.2) + AL3PD (x(Pd) 0.25) |
| AlPd-21Hom.tdb | 876.82 | FCC_A1 (x(Pd) 6.000e-5) + AL4PD (x(Pd) 0.2) + AL3PD (x(Pd) 0.25) |
| AlPd-21Hom.tdb | 853.7 | AL4PD (x(Pd) 0.2) + AL3PD (x(Pd) 0.25) + AL21PD8 (x(Pd) 0.27586) |
Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull AlPd-06Li
Invariant reactions (literature)
| T (K) | Reaction / phases | Compositions (mole fraction) | Class | Source | Location | Quote |
|---|---|---|---|---|---|---|
| 1918 | congruent melting: L -> (AlPd) | L: Pd 0.501; (AlPd): Pd 0.501 | model | [1] Li 2006 | Table 1, p. 2, row 26 report | |
| 1918 | congruent melting: L -> (AlPd) | L: Pd 0.5; (AlPd): Pd 0.5 | model | [1] Li 2006 cites McAlister 1986 doi | Table 1, p. 2, row 25 report | |
| 1691 | congruent melting: L -> (AlPd2) | L: Pd 0.6796; (AlPd2): Pd 0.6796 | model | [1] Li 2006 | Table 1, p. 2, row 28 report | |
| 1691 | congruent melting: L -> (AlPd2) | L: Pd 0.6667; (AlPd2): Pd 0.6667 | model | [1] Li 2006 cites McAlister 1986 doi | Table 1, p. 2, row 27 report | |
| 1591 | L + (AlPd2) -> Al3Pd5 | L: Pd 0.623; (AlPd2): Pd 0.652; Al3Pd5: Pd 0.625 | model | [1] Li 2006 | Table 1, p. 2, row 22 report | |
| 1591 | L + (AlPd2) -> Al3Pd5 | L: Pd 0.6149; (AlPd2): Pd 0.65; Al3Pd5: Pd 0.625 | model | [1] Li 2006 cites McAlister 1986 doi | Table 1, p. 2, row 21 report | |
| 1589 | eutectic: L -> (AlPd) + Al3Pd5 | L: Pd 0.6181; (AlPd): Pd 0.523; Al3Pd5: Pd 0.625 | model | [1] Li 2006 | Table 1, p. 2, row 20 report | |
| 1588 | eutectic: L -> (AlPd) + Al3Pd5 | L: Pd 0.6149; (AlPd): Pd 0.55; Al3Pd5: Pd 0.625 | model | [1] Li 2006 cites McAlister 1986 doi | Table 1, p. 2, row 19 report | |
| 1329 | eutectic: L -> (AlPd2) + (Pd) | L: Pd 0.774; (AlPd2): Pd 0.725; (Pd): Pd 0.811 | model | [1] Li 2006 | Table 1, p. 2, row 12 report | |
| 1328 | eutectic: L -> (AlPd2) + (Pd) | L: Pd 0.767; (AlPd2): Pd 0.745; (Pd): Pd 0.797 | model | [1] Li 2006 cites McAlister 1986 doi | Table 1, p. 2, row 11 report | |
| 1253 | polymorphic: (AlPd2) -> (Al2Pd5) | (AlPd2): Pd 0.71; (Al2Pd5): Pd 0.71 | model | [1] Li 2006 cites McAlister 1986 doi | Table 1, p. 2, row 23 report | |
| 1253 | polymorphic: (AlPd2) -> (Al2Pd5) | (AlPd2): Pd 0.713; (Al2Pd5): Pd 0.713 | model | [1] Li 2006 | Table 1, p. 2, row 24 report | |
| 1225 | L + (AlPd) -> (Al3Pd2) | L: Pd 0.283; (AlPd): Pd 0.442; (Al3Pd2): Pd 0.406 | model | [1] Li 2006 | Table 1, p. 2, row 10 report | |
| 1225 | L + (AlPd) -> (Al3Pd2) | L: Pd 0.284; (AlPd): Pd 0.44; (Al3Pd2): Pd 0.4 | model | [1] Li 2006 cites McAlister 1986 doi | Table 1, p. 2, row 9 report | |
| 1131 | (AlPd2) -> (Al2Pd5) + (Pd) | (AlPd2): Pd 0.729; (Al2Pd5): Pd 0.717; (Pd): Pd 0.812 | model | [1] Li 2006 cites McAlister 1986 doi | Table 1, p. 2, row 15 report | |
| 1131 | (AlPd2) -> (Al2Pd5) + (Pd) | (AlPd2): Pd 0.727; (Al2Pd5): Pd 0.7141; (Pd): Pd 0.81 | model | [1] Li 2006 | Table 1, p. 2, row 16 report | |
| 1065 | L + (Al3Pd2) -> Al21Pd8 | L: Pd 0.2178; (Al3Pd2): Pd 0.39; Al21Pd8: Pd 0.276 | model | [1] Li 2006 cites McAlister 1986 doi | Table 1, p. 2, row 5 report | |
| 1064 | L + (Al3Pd2) -> Al21Pd8 | L: Pd 0.2206; (Al3Pd2): Pd 0.396; Al21Pd8: Pd 0.276 | model | [1] Li 2006 | Table 1, p. 2, row 6 report | |
| 1062 | peritectic: liquid+Al3 Pd2 ↔ Al3 Pd | experimental | [2] Homolová 2021 cites ref. 21 | p. 6 report | Parameters for Al21 Pd8 were modified with the aim of achieving better agreement with experimental results [21], which show that the Al3 Pd phase forms by peritectic reaction liquid+Al3 Pd2 ↔ Al3 Pd at 1062 K. | |
| 1055 | L + Al21Pd8 -> Al3Pd | L: Pd 0.2083; Al21Pd8: Pd 0.276; Al3Pd: Pd 0.25 | model | [1] Li 2006 | Table 1, p. 2, row 4 report | |
| 1055 | L + Al21Pd8 -> Al3Pd | L: Pd 0.2086; Al21Pd8: Pd 0.276; Al3Pd: Pd 0.25 | experimental | [1] Li 2006 cites Yurehko 2001 | Table 1, p. 2, row 3 report | |
| 892.15 | eutectoid: εn/(Al3Pd)↔γ-Al21Pd8+δ/(Al3Pd2) | model | [3] Ďuriška 2017 | p. 5 report | In the present work, the eutectoid reaction, εn/(Al3Pd)↔γ-Al21Pd8+δ/(Al3Pd2), was calculated at 619°C (Figure 1), whereas it was not predicted in the phase diagram calculated previously [7]. | |
| 891 | eutectic: L -> (Al) + Al3Pd | L: Pd 0.065; (Al): Pd 8.000e-5; Al3Pd: Pd 0.25 | model | [1] Li 2006 | Table 1, p. 2, row 2 report | |
| 889 | eutectic: L -> (Al) + Al3Pd | L: Pd 0.0689; (Al): Pd 0.002; Al3Pd: Pd 0.25 | experimental | [1] Li 2006 cites Yurehko 2001 | Table 1, p. 2, row 1 report | |
| 888 | Al3Pd5 -> (AlPd) + (AlPd2) | Al3Pd5: Pd 0.625; (AlPd): Pd 0.549; (AlPd2): Pd 0.652 | model | [1] Li 2006 | Table 1, p. 2, row 14 report | |
| 888 | Al3Pd5 -> (AlPd) + (AlPd2) | Al3Pd5: Pd 0.625; (AlPd): Pd 0.569; (AlPd2): Pd 0.664 | model | [1] Li 2006 cites McAlister 1986 doi | Table 1, p. 2, row 13 report | |
| 880.15 | eutectic: L↔(Al)+εn/(Al3Pd) | model | [3] Ďuriška 2017 | p. 5 report | As a consequence, the temperature of eutectic reaction, L↔(Al)+εn/(Al3Pd), dropped to 607°C, Figure 1. | |
| 877 | (Al) + Al3Pd -> Al4Pd | (Al): Pd 6.000e-5; Al3Pd: Pd 0.25; Al4Pd: Pd 0.2 | model | [1] Li 2006 | Table 1, p. 2, row 8 report | |
| 877 | (Al) + Al3Pd -> Al4Pd | (Al): Pd 0.00178; Al3Pd: Pd 0.25; Al4Pd: Pd 0.2 | experimental | [1] Li 2006 cites Yurehko 2001 | Table 1, p. 2, row 7 report | |
| 852 | Al3Pd -> Al21Pd8 + Al4Pd | Al3Pd: Pd 0.25; Al21Pd8: Pd 0.276; Al4Pd: Pd 0.2 | model | [1] Li 2006 | Table 1, p. 2, row 18 report | |
| 852 | Al3Pd -> Al21Pd8 + Al4Pd | Al3Pd: Pd 0.25; Al21Pd8: Pd 0.276; Al4Pd: Pd 0.2 | experimental | [1] Li 2006 cites Yurehko 2001 | Table 1, p. 2, row 17 report |
Other properties
Phase transition (2)
| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---|---|---|---|---|---|---|
| Phase transition | 1055 K | 1055 | liquid + Al21 Pd8 ↔ Al3 Pd | experimental | [2] Homolová 2021 cites ref. 21 | p. 6 report | According to Grushko [21], reaction liquid + Al21 Pd8 ↔ Al3 Pd at 1055 K that was suggested in study [27] is considered as quite uncertain because only a weak kink associated with this reaction was observed in a DTA plot of the study [27]. |
| Phase transition | 1062 K | 1062 | liquid + Al3Pd2 ↔ Al3Pd | experimental | [2] Homolová 2021 cites ref. 21 | p. 10 report | liquid + Al3 Pd2 ↔ Al3 Pd at 1062 K in the binary system according to Grushko [21], which is in accordance with the presented calculations. |
Sources
Reporting papers the values were read from (a value cited from another work names that work in its row).
- Mei Li, Changrong Li, Fuming Wang, Weijing Zhang, Thermodynamic assessment of the Al–Pd system, Intermetallics 14, 39-46 (2006). doi:10.1016/j.intermet.2005.04.001
- Viera Homolová, Aleš Kroupa, Thermodynamic Modeling of the Al–Co–Pd Ternary System, Aluminum Rich Corner, Metals 11, 1803 (2021). doi:10.3390/met11111803
- Libor Ďuriška, Ivona Černičková, Roman Čička, Jozef Janovec, Contribution to thermodynamic description of Al-Pd system, J. Phys.: Conf. Ser. 809, 012008 (2017). doi:10.1088/1742-6596/809/1/012008