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

Accepted values by evidence class
Evidence classValues
experimental7
model26
Accepted values by property group
Property groupValues
invariant reaction31
phase transition2

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.

Assessments with a calculated phase diagram
TDB fileAssessmentSHA-256Links
AlPd-06Li.tdbM. Li, C. Li, F. Wang, W. Zhang, Intermetallics, 14, 39-46(2006). doi:10.1016/j.intermet.2005.04.001fe0d623a97496170f1fa24422ebe3e9a7ab46a5f552f20fc036303f7caa86525viewer · TDB · JSON
AlPd-17Dur.tdbL. Duriska, I. Cernickova, R. Cicka, J. Janovec, J. Phys. Conf. Ser., 809, 012008(2017). doi:10.1088/1742-6596/809/1/01200853154de006cd77b7e2af3d8a057b9dc5148572a7b96c5cf7c2640f5e89aac066viewer · TDB · JSON
AlPd-21Hom.tdbV. Homolova, A. Kroupa, Metals, 11, 1803(2021). doi:10.3390/met1111180316c4c1ecb5dbb2e6a55795345963ab0269f77bb03c2d0c47c404af55ce852b11viewer · TDB · JSON
Calculated three-phase invariants (model, mole fraction of the second component)
TDB fileT (K)Phases at the invariant
AlPd-06Li.tdb1590.76LIQUID (x(Pd) 0.62364) + AL3PD5 (x(Pd) 0.625) + ALPD2_C37 (x(Pd) 0.65263)
AlPd-06Li.tdb1590.76LIQUID (x(Pd) 0.62367) + AL3PD5 (x(Pd) 0.625) + ALPD2_C37 (x(Pd) 0.65265)
AlPd-06Li.tdb1588.64ALPD_B2 (x(Pd) 0.52266) + LIQUID (x(Pd) 0.61815) + AL3PD5 (x(Pd) 0.625)
AlPd-06Li.tdb1588.64ALPD_B2 (x(Pd) 0.52267) + LIQUID (x(Pd) 0.61817) + AL3PD5 (x(Pd) 0.625)
AlPd-06Li.tdb1329.76ALPD2_C37 (x(Pd) 0.72474) + LIQUID (x(Pd) 0.77454) + FCC_A1 (x(Pd) 0.81146)
AlPd-06Li.tdb1224.51LIQUID (x(Pd) 0.28236) + AL3PD2_D513 (x(Pd) 0.4064) + ALPD_B2 (x(Pd) 0.44239)
AlPd-06Li.tdb1131.17AL2PD5 (x(Pd) 0.71407) + ALPD2_C37 (x(Pd) 0.72644) + FCC_A1 (x(Pd) 0.81001)
AlPd-06Li.tdb1063.8LIQUID (x(Pd) 0.22067) + AL21PD8 (x(Pd) 0.27586) + AL3PD2_D513 (x(Pd) 0.39611)
AlPd-06Li.tdb1063.8LIQUID (x(Pd) 0.22062) + AL21PD8 (x(Pd) 0.27586) + AL3PD2_D513 (x(Pd) 0.39611)
AlPd-06Li.tdb1055.48LIQUID (x(Pd) 0.20885) + AL3PD (x(Pd) 0.25) + AL21PD8 (x(Pd) 0.27586)
AlPd-06Li.tdb1055.48LIQUID (x(Pd) 0.20853) + AL3PD (x(Pd) 0.25) + AL21PD8 (x(Pd) 0.27586)
AlPd-06Li.tdb1055.48LIQUID (x(Pd) 0.20879) + AL3PD (x(Pd) 0.25) + AL21PD8 (x(Pd) 0.27586)
AlPd-06Li.tdb891.45FCC_A1 (x(Pd) 8.000e-5) + LIQUID (x(Pd) 0.06513) + AL3PD (x(Pd) 0.25)
AlPd-06Li.tdb891.45FCC_A1 (x(Pd) 8.000e-5) + LIQUID (x(Pd) 0.065) + AL3PD (x(Pd) 0.25)
AlPd-06Li.tdb888.72ALPD_B2 (x(Pd) 0.54877) + AL3PD5 (x(Pd) 0.625) + ALPD2_C37 (x(Pd) 0.65208)
AlPd-06Li.tdb876.82FCC_A1 (x(Pd) 6.000e-5) + AL4PD (x(Pd) 0.2) + AL3PD (x(Pd) 0.25)
AlPd-06Li.tdb876.82FCC_A1 (x(Pd) 6.000e-5) + AL4PD (x(Pd) 0.2) + AL3PD (x(Pd) 0.25)
AlPd-06Li.tdb876.82FCC_A1 (x(Pd) 6.000e-5) + AL4PD (x(Pd) 0.2) + AL3PD (x(Pd) 0.25)
AlPd-06Li.tdb852.09AL4PD (x(Pd) 0.2) + AL3PD (x(Pd) 0.25) + AL21PD8 (x(Pd) 0.27586)
AlPd-17Dur.tdb1590.76LIQUID (x(Pd) 0.62364) + AL3PD5 (x(Pd) 0.625) + ALPD2_C37 (x(Pd) 0.65263)
AlPd-17Dur.tdb1590.76LIQUID (x(Pd) 0.62367) + AL3PD5 (x(Pd) 0.625) + ALPD2_C37 (x(Pd) 0.65265)
AlPd-17Dur.tdb1588.64ALPD_B2 (x(Pd) 0.52266) + LIQUID (x(Pd) 0.61815) + AL3PD5 (x(Pd) 0.625)
AlPd-17Dur.tdb1588.64ALPD_B2 (x(Pd) 0.52267) + LIQUID (x(Pd) 0.61817) + AL3PD5 (x(Pd) 0.625)
AlPd-17Dur.tdb1329.76ALPD2_C37 (x(Pd) 0.72474) + LIQUID (x(Pd) 0.77454) + FCC_A1 (x(Pd) 0.81146)
AlPd-17Dur.tdb1224.51LIQUID (x(Pd) 0.28236) + AL3PD2_D513 (x(Pd) 0.4064) + ALPD_B2 (x(Pd) 0.44239)
AlPd-17Dur.tdb1131.17AL2PD5 (x(Pd) 0.71407) + ALPD2_C37 (x(Pd) 0.72644) + FCC_A1 (x(Pd) 0.81001)
AlPd-17Dur.tdb1056.64LIQUID (x(Pd) 0.21808) + AL3PD (x(Pd) 0.29958) + AL3PD2_D513 (x(Pd) 0.39566)
AlPd-17Dur.tdb891.98AL21PD8 (x(Pd) 0.27586) + AL3PD (x(Pd) 0.28903) + AL3PD2_D513 (x(Pd) 0.39241)
AlPd-17Dur.tdb888.72ALPD_B2 (x(Pd) 0.54877) + AL3PD5 (x(Pd) 0.625) + ALPD2_C37 (x(Pd) 0.65208)
AlPd-17Dur.tdb879.9FCC_A1 (x(Pd) 9.000e-5) + LIQUID (x(Pd) 0.08027) + AL3PD (x(Pd) 0.26002)
AlPd-17Dur.tdb877.27FCC_A1 (x(Pd) 9.000e-5) + AL4PD (x(Pd) 0.2) + AL3PD (x(Pd) 0.25986)
AlPd-17Dur.tdb852.21AL4PD (x(Pd) 0.2) + AL3PD (x(Pd) 0.2597) + AL21PD8 (x(Pd) 0.27586)
AlPd-17Dur.tdb852.21AL4PD (x(Pd) 0.2) + AL3PD (x(Pd) 0.2597) + AL21PD8 (x(Pd) 0.27586)
AlPd-21Hom.tdb1592.92LIQUID (x(Pd) 0.62428) + AL3PD5 (x(Pd) 0.625) + ALPD2_C37 (x(Pd) 0.65303)
AlPd-21Hom.tdb1592.92LIQUID (x(Pd) 0.62432) + AL3PD5 (x(Pd) 0.625) + ALPD2_C37 (x(Pd) 0.65306)
AlPd-21Hom.tdb1585.67B2_BCC (x(Pd) 0.50325) + LIQUID (x(Pd) 0.61258) + AL3PD5 (x(Pd) 0.625)
AlPd-21Hom.tdb1585.67B2_BCC (x(Pd) 0.50325) + LIQUID (x(Pd) 0.61261) + AL3PD5 (x(Pd) 0.625)
AlPd-21Hom.tdb1585.67B2_BCC (x(Pd) 0.50325) + LIQUID (x(Pd) 0.61258) + AL3PD5 (x(Pd) 0.625)
AlPd-21Hom.tdb1329.76ALPD2_C37 (x(Pd) 0.72474) + LIQUID (x(Pd) 0.77454) + FCC_A1 (x(Pd) 0.81146)
AlPd-21Hom.tdb1206.03LIQUID (x(Pd) 0.26573) + AL3PD2_D513 (x(Pd) 0.4037) + B2_BCC (x(Pd) 0.45989)
AlPd-21Hom.tdb1131.17AL2PD5 (x(Pd) 0.71407) + ALPD2_C37 (x(Pd) 0.72644) + FCC_A1 (x(Pd) 0.81001)
AlPd-21Hom.tdb1059.13LIQUID (x(Pd) 0.2161) + AL3PD (x(Pd) 0.25) + AL3PD2_D513 (x(Pd) 0.39562)
AlPd-21Hom.tdb1059.13LIQUID (x(Pd) 0.21602) + AL3PD (x(Pd) 0.25) + AL3PD2_D513 (x(Pd) 0.3956)
AlPd-21Hom.tdb1020.43AL3PD (x(Pd) 0.25) + AL21PD8 (x(Pd) 0.27586) + AL3PD2_D513 (x(Pd) 0.39505)
AlPd-21Hom.tdb1020.43AL3PD (x(Pd) 0.25) + AL21PD8 (x(Pd) 0.27586) + AL3PD2_D513 (x(Pd) 0.39504)
AlPd-21Hom.tdb891.45FCC_A1 (x(Pd) 8.000e-5) + LIQUID (x(Pd) 0.06513) + AL3PD (x(Pd) 0.25)
AlPd-21Hom.tdb891.45FCC_A1 (x(Pd) 8.000e-5) + LIQUID (x(Pd) 0.065) + AL3PD (x(Pd) 0.25)
AlPd-21Hom.tdb889.46B2_BCC (x(Pd) 0.52301) + AL3PD5 (x(Pd) 0.625) + ALPD2_C37 (x(Pd) 0.65068)
AlPd-21Hom.tdb889.46B2_BCC (x(Pd) 0.52301) + AL3PD5 (x(Pd) 0.625) + ALPD2_C37 (x(Pd) 0.65068)
AlPd-21Hom.tdb876.82FCC_A1 (x(Pd) 6.000e-5) + AL4PD (x(Pd) 0.2) + AL3PD (x(Pd) 0.25)
AlPd-21Hom.tdb876.82FCC_A1 (x(Pd) 6.000e-5) + AL4PD (x(Pd) 0.2) + AL3PD (x(Pd) 0.25)
AlPd-21Hom.tdb876.82FCC_A1 (x(Pd) 6.000e-5) + AL4PD (x(Pd) 0.2) + AL3PD (x(Pd) 0.25)
AlPd-21Hom.tdb853.7AL4PD (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)

Invariant reactions reported in the literature for the Al–Pd system (31)
T (K)Reaction / phasesCompositions (mole fraction)ClassSourceLocationQuote
1918congruent melting: L -> (AlPd)L: Pd 0.501; (AlPd): Pd 0.501model[1] Li 2006Table 1, p. 2, row 26
report
1918congruent melting: L -> (AlPd)L: Pd 0.5; (AlPd): Pd 0.5model[1] Li 2006
cites McAlister 1986 doi
Table 1, p. 2, row 25
report
1691congruent melting: L -> (AlPd2)L: Pd 0.6796; (AlPd2): Pd 0.6796model[1] Li 2006Table 1, p. 2, row 28
report
1691congruent melting: L -> (AlPd2)L: Pd 0.6667; (AlPd2): Pd 0.6667model[1] Li 2006
cites McAlister 1986 doi
Table 1, p. 2, row 27
report
1591L + (AlPd2) -> Al3Pd5L: Pd 0.623; (AlPd2): Pd 0.652; Al3Pd5: Pd 0.625model[1] Li 2006Table 1, p. 2, row 22
report
1591L + (AlPd2) -> Al3Pd5L: Pd 0.6149; (AlPd2): Pd 0.65; Al3Pd5: Pd 0.625model[1] Li 2006
cites McAlister 1986 doi
Table 1, p. 2, row 21
report
1589eutectic: L -> (AlPd) + Al3Pd5L: Pd 0.6181; (AlPd): Pd 0.523; Al3Pd5: Pd 0.625model[1] Li 2006Table 1, p. 2, row 20
report
1588eutectic: L -> (AlPd) + Al3Pd5L: Pd 0.6149; (AlPd): Pd 0.55; Al3Pd5: Pd 0.625model[1] Li 2006
cites McAlister 1986 doi
Table 1, p. 2, row 19
report
1329eutectic: L -> (AlPd2) + (Pd)L: Pd 0.774; (AlPd2): Pd 0.725; (Pd): Pd 0.811model[1] Li 2006Table 1, p. 2, row 12
report
1328eutectic: L -> (AlPd2) + (Pd)L: Pd 0.767; (AlPd2): Pd 0.745; (Pd): Pd 0.797model[1] Li 2006
cites McAlister 1986 doi
Table 1, p. 2, row 11
report
1253polymorphic: (AlPd2) -> (Al2Pd5)(AlPd2): Pd 0.71; (Al2Pd5): Pd 0.71model[1] Li 2006
cites McAlister 1986 doi
Table 1, p. 2, row 23
report
1253polymorphic: (AlPd2) -> (Al2Pd5)(AlPd2): Pd 0.713; (Al2Pd5): Pd 0.713model[1] Li 2006Table 1, p. 2, row 24
report
1225L + (AlPd) -> (Al3Pd2)L: Pd 0.283; (AlPd): Pd 0.442; (Al3Pd2): Pd 0.406model[1] Li 2006Table 1, p. 2, row 10
report
1225L + (AlPd) -> (Al3Pd2)L: Pd 0.284; (AlPd): Pd 0.44; (Al3Pd2): Pd 0.4model[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 0.812model[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 0.81model[1] Li 2006Table 1, p. 2, row 16
report
1065L + (Al3Pd2) -> Al21Pd8L: Pd 0.2178; (Al3Pd2): Pd 0.39; Al21Pd8: Pd 0.276model[1] Li 2006
cites McAlister 1986 doi
Table 1, p. 2, row 5
report
1064L + (Al3Pd2) -> Al21Pd8L: Pd 0.2206; (Al3Pd2): Pd 0.396; Al21Pd8: Pd 0.276model[1] Li 2006Table 1, p. 2, row 6
report
1062peritectic: liquid+Al3 Pd2 ↔ Al3 Pdexperimental[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.
1055L + Al21Pd8 -> Al3PdL: Pd 0.2083; Al21Pd8: Pd 0.276; Al3Pd: Pd 0.25model[1] Li 2006Table 1, p. 2, row 4
report
1055L + Al21Pd8 -> Al3PdL: Pd 0.2086; Al21Pd8: Pd 0.276; Al3Pd: Pd 0.25experimental[1] Li 2006
cites Yurehko 2001
Table 1, p. 2, row 3
report
892.15eutectoid: εn/(Al3Pd)↔γ-Al21Pd8+δ/(Al3Pd2)model[3] Ďuriška 2017p. 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].
891eutectic: L -> (Al) + Al3PdL: Pd 0.065; (Al): Pd 8.000e-5; Al3Pd: Pd 0.25model[1] Li 2006Table 1, p. 2, row 2
report
889eutectic: L -> (Al) + Al3PdL: Pd 0.0689; (Al): Pd 0.002; Al3Pd: Pd 0.25experimental[1] Li 2006
cites Yurehko 2001
Table 1, p. 2, row 1
report
888Al3Pd5 -> (AlPd) + (AlPd2)Al3Pd5: Pd 0.625; (AlPd): Pd 0.549; (AlPd2): Pd 0.652model[1] Li 2006Table 1, p. 2, row 14
report
888Al3Pd5 -> (AlPd) + (AlPd2)Al3Pd5: Pd 0.625; (AlPd): Pd 0.569; (AlPd2): Pd 0.664model[1] Li 2006
cites McAlister 1986 doi
Table 1, p. 2, row 13
report
880.15eutectic: L↔(Al)+εn/(Al3Pd)model[3] Ďuriška 2017p. 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 0.2model[1] Li 2006Table 1, p. 2, row 8
report
877(Al) + Al3Pd -> Al4Pd(Al): Pd 0.00178; Al3Pd: Pd 0.25; Al4Pd: Pd 0.2experimental[1] Li 2006
cites Yurehko 2001
Table 1, p. 2, row 7
report
852Al3Pd -> Al21Pd8 + Al4PdAl3Pd: Pd 0.25; Al21Pd8: Pd 0.276; Al4Pd: Pd 0.2model[1] Li 2006Table 1, p. 2, row 18
report
852Al3Pd -> Al21Pd8 + Al4PdAl3Pd: Pd 0.25; Al21Pd8: Pd 0.276; Al4Pd: Pd 0.2experimental[1] Li 2006
cites Yurehko 2001
Table 1, p. 2, row 17
report

Other properties

Phase transition (2)

Phase transition, Al–Pd system
PropertyValueT (K)Phases / compositionClassSourceLocationQuote
Phase transition1055 K1055liquid + Al21 Pd8 ↔ Al3 Pdexperimental[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 transition1062 K1062liquid + Al3Pd2 ↔ Al3Pdexperimental[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).

  1. 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
  2. Viera Homolová, Aleš Kroupa, Thermodynamic Modeling of the Al–Co–Pd Ternary System, Aluminum Rich Corner, Metals 11, 1803 (2021). doi:10.3390/met11111803
  3. 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