Cr–Ga system

61 accepted literature values from 2 paper(s) (experimental 26, model 35); 2 calculated phase diagram(s). 4 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 (10) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence classValues
experimental26
model35
Accepted values by property group
Property groupValues
invariant reaction12
formation46
heat capacity / entropy / enthalpy3

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
CrGa-05Bel.tdbA. Belgacem-Bouzida, Y. Djaballa, M. Notin, J. Alloys Compd., 397, 155-60(2005). doi:10.1016/j.jallcom.2005.01.026d905d1a4fa49ed9e18a8cabd7c727a4ac2cb7c687dd51115590bdc391fbe8d7aviewer · TDB · JSON
CrGa-99Gro.tdbJ. Groebner, R. Wenzel, G.G. Fischer, R. Schmid-Fetzer, J. Phase Equilib., 20, 615-25(1999). doi:10.1361/1054971997703406081cd0f87b555dfe93a6d6b97858b3bfc5399fff79d61dbef942d027ee13075555viewer · TDB · JSON
Calculated three-phase invariants (model, mole fraction of the second component)
TDB fileT (K)Phases at the invariant
CrGa-05Bel.tdb1920.44BCC_A2 (x(Ga) 0.15749) + CR3GA_BETA (x(Ga) 0.23) + LIQUID (x(Ga) 0.31915)
CrGa-05Bel.tdb1373.64BCC_A2 (x(Ga) 0.14478) + CR3GA_A15 (x(Ga) 0.23) + CR3GA_BETA (x(Ga) 0.23)
CrGa-05Bel.tdb1373.64CR3GA_A15 (x(Ga) 0.23) + CR3GA_BETA (x(Ga) 0.23) + LIQUID (x(Ga) 0.65029)
CrGa-05Bel.tdb1373.64CR3GA_BETA (x(Ga) 0.23) + CR3GA_A15 (x(Ga) 0.23) + LIQUID (x(Ga) 0.6506)
CrGa-05Bel.tdb1156.42CR3GA_A15 (x(Ga) 0.23) + CRGA_D810 (x(Ga) 0.5) + LIQUID (x(Ga) 0.80888)
CrGa-05Bel.tdb1156.42CR3GA_A15 (x(Ga) 0.23) + CRGA_D810 (x(Ga) 0.5) + LIQUID (x(Ga) 0.8086)
CrGa-05Bel.tdb1156.42CR3GA_A15 (x(Ga) 0.23) + CRGA_D810 (x(Ga) 0.5) + LIQUID (x(Ga) 0.80911)
CrGa-05Bel.tdb1048.12CRGA_D810 (x(Ga) 0.5) + CR5GA6 (x(Ga) 0.567) + LIQUID (x(Ga) 0.92457)
CrGa-05Bel.tdb1048.12CRGA_D810 (x(Ga) 0.5) + CR5GA6 (x(Ga) 0.567) + LIQUID (x(Ga) 0.92489)
CrGa-05Bel.tdb1048.12CRGA_D810 (x(Ga) 0.5) + CR5GA6 (x(Ga) 0.567) + LIQUID (x(Ga) 0.92508)
CrGa-05Bel.tdb1009CR3GA_A15 (x(Ga) 0.23) + CRGA_D810 (x(Ga) 0.5) + CR5GA6 (x(Ga) 0.567)
CrGa-05Bel.tdb973.03CR5GA6 (x(Ga) 0.567) + CRGA4 (x(Ga) 0.77) + LIQUID (x(Ga) 0.9749)
CrGa-05Bel.tdb973.03CR5GA6 (x(Ga) 0.567) + CRGA4 (x(Ga) 0.77) + LIQUID (x(Ga) 0.97498)
CrGa-05Bel.tdb973.03CR5GA6 (x(Ga) 0.567) + CRGA4 (x(Ga) 0.77) + LIQUID (x(Ga) 0.97511)
CrGa-05Bel.tdb302.91CRGA4 (x(Ga) 0.77) + ORTHORHOMBIC_A11 (x(Ga) 1) + LIQUID (x(Ga) 1)
CrGa-99Gro.tdb1870.49BCC_A2 (x(Ga) 0.14432) + CR3GA_A15 (x(Ga) 0.25) + LIQUID (x(Ga) 0.55472)
CrGa-99Gro.tdb1179.89CR3GA_A15 (x(Ga) 0.25) + CRGA_D810 (x(Ga) 0.5) + LIQUID (x(Ga) 0.82748)
CrGa-99Gro.tdb1179.89CR3GA_A15 (x(Ga) 0.25) + CRGA_D810 (x(Ga) 0.5) + LIQUID (x(Ga) 0.82745)
CrGa-99Gro.tdb1179.89CR3GA_A15 (x(Ga) 0.25) + CRGA_D810 (x(Ga) 0.5) + LIQUID (x(Ga) 0.82743)
CrGa-99Gro.tdb1047.23CRGA_D810 (x(Ga) 0.5) + CR5GA6 (x(Ga) 0.54545) + LIQUID (x(Ga) 0.85758)
CrGa-99Gro.tdb1047.23CRGA_D810 (x(Ga) 0.5) + CR5GA6 (x(Ga) 0.54545) + LIQUID (x(Ga) 0.85757)
CrGa-99Gro.tdb1047.23CRGA_D810 (x(Ga) 0.5) + CR5GA6 (x(Ga) 0.54545) + LIQUID (x(Ga) 0.8576)
CrGa-99Gro.tdb1029.04CR3GA_A15 (x(Ga) 0.25) + CRGA_D810 (x(Ga) 0.5) + CR5GA6 (x(Ga) 0.54545)
CrGa-99Gro.tdb973.43CR5GA6 (x(Ga) 0.54545) + CRGA4 (x(Ga) 0.8) + LIQUID (x(Ga) 0.87936)
CrGa-99Gro.tdb973.43CR5GA6 (x(Ga) 0.54545) + CRGA4 (x(Ga) 0.8) + LIQUID (x(Ga) 0.87926)
CrGa-99Gro.tdb973.43CR5GA6 (x(Ga) 0.54545) + CRGA4 (x(Ga) 0.8) + LIQUID (x(Ga) 0.87937)
CrGa-99Gro.tdb302.91CRGA4 (x(Ga) 0.8) + ORTHORHOMBIC_A11 (x(Ga) 1) + LIQUID (x(Ga) 1)
CrGa-99Gro.tdb302.91CRGA4 (x(Ga) 0.8) + ORTHORHOMBIC_A11 (x(Ga) 1) + LIQUID (x(Ga) 1)

Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull CrGa-99Gro

Invariant reactions (literature)

Invariant reactions reported in the literature for the Cr–Ga system (12)
T (K)Reaction / phasesCompositions (mole fraction)ClassSourceLocationQuote
1902.15L + Cr -> β-Cr3GaL: Ga 0.324; β-Cr3Ga: Ga 0.25model[1] Belgacem-Bouzida 2005Table 5, p. 5, row 2
report
1893.15L + Cr -> β-Cr3GaL: Ga 0.33; β-Cr3Ga: Ga 0.25experimental[1] Belgacem-Bouzida 2005
cites Bornand 1972 doi
Table 5, p. 5, row 1
report
1374.15L + Cr -> α-Cr3GaL: Ga 0.656; α-Cr3Ga: Ga 0.25model[1] Belgacem-Bouzida 2005Table 5, p. 5, row 4
report
1373.15L + Cr -> α-Cr3GaL: Ga 0.635; α-Cr3Ga: Ga 0.25experimental[1] Belgacem-Bouzida 2005
cites Bornand 1972 doi
Table 5, p. 5, row 3
report
1156.15L + α-Cr3Ga -> CrGaL: Ga 0.807; α-Cr3Ga: Ga 0.25; CrGa: Ga 0.5model[1] Belgacem-Bouzida 2005Table 5, p. 5, row 6
report
1153.15L + α-Cr3Ga -> CrGaL: Ga 0.83; α-Cr3Ga: Ga 0.25; CrGa: Ga 0.5experimental[1] Belgacem-Bouzida 2005
cites Bornand 1972 doi
Table 5, p. 5, row 5
report
1048.15L + α-CrGa -> Cr5GaL: Ga 0.923; α-CrGa: Ga 0.5; Cr5Ga: Ga 0.166667model[1] Belgacem-Bouzida 2005Table 5, p. 5, row 8
report
1048.15L + α-CrGa -> Cr5GaL: Ga 0.925; α-CrGa: Ga 0.5; Cr5Ga: Ga 0.166667experimental[1] Belgacem-Bouzida 2005
cites Bornand 1972 doi
Table 5, p. 5, row 7
report
1033.15α-Cr3Ga + CrGa -> Cr5Ga6α-Cr3Ga: Ga 0.25; CrGa: Ga 0.5; Cr5Ga6: Ga 0.545455experimental[1] Belgacem-Bouzida 2005
cites Bornand 1972 doi
Table 5, p. 5, row 9
report
1009.15α-Cr3Ga + CrGa -> Cr5Ga6α-Cr3Ga: Ga 0.25; CrGa: Ga 0.5; Cr5Ga6: Ga 0.545455model[1] Belgacem-Bouzida 2005Table 5, p. 5, row 10
report
973.15L + Cr5Ga6 -> CrGa4L: Ga 0.974; Cr5Ga6: Ga 0.545455; CrGa4: Ga 0.8model[1] Belgacem-Bouzida 2005Table 5, p. 5, row 12
report
973.15L + Cr5Ga6 -> CrGa4L: Ga 0.975; Cr5Ga6: Ga 0.545455; CrGa4: Ga 0.8experimental[1] Belgacem-Bouzida 2005
cites Bornand 1972 doi
Table 5, p. 5, row 11
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.

Enthalpies of formation, Cr–Ga system (34)
PhaseCompoundValueT (K)ClassMP DFT (kJ/mol-atom)OQMD DFT (kJ/mol-atom)SourceLocationQuote
Cr3GaCr3Ga-12 kJ/mol-atom298.15model-4.035 (mp-aaaaabvj)-5.328 (oqmd-29544)[2] Gröbner 1999
cites F 1988
Table 1, p. 2, row 44
report
Cr3GaCr3Ga-9.75 kJ/mol-atom298.15model-4.035 (mp-aaaaabvj)-5.328 (oqmd-29544)[2] Gröbner 1999Table 1, p. 2, row 43
report
Cr3GaCr3Ga-3.3 kJ/mol-atom850experimental-4.035 (mp-aaaaabvj)-5.328 (oqmd-29544)[2] Gröbner 1999
cites Gonchuruk 1981
Table 1, p. 2, row 42
report
Cr3Ga (α)-12 kJ/mol (basis unstated)model[1] Belgacem-Bouzida 2005
cites Djaballah 1999
Table 4, p. 4, row 3
report
Cr3Ga (α)-9.75 kJ/mol (basis unstated)model[1] Belgacem-Bouzida 2005
cites Grobner 1999 doi
Table 4, p. 4, row 2
report
Cr3Ga (α)-8.24 kJ/mol (basis unstated)model[1] Belgacem-Bouzida 2005Table 4, p. 4, row 5
report
Cr3Ga (α)-8.1 kJ/mol (basis unstated) ± 0.3298.15experimental[1] Belgacem-Bouzida 2005Table 4, p. 4, row 4
report
Cr3Ga (α)-3.3 kJ/mol (basis unstated)298.15experimental[1] Belgacem-Bouzida 2005
cites Goncharuk 1981
Table 4, p. 4, row 1
report
Cr3Ga (β)-7.25 kJ/mol (basis unstated) ± 0.7298.15experimental[1] Belgacem-Bouzida 2005Table 4, p. 4, row 6
report
Cr3Ga (β)-6.98 kJ/mol (basis unstated)model[1] Belgacem-Bouzida 2005Table 4, p. 4, row 7
report
Cr5Ga6-15.15 kJ/mol-atom298.15model[2] Gröbner 1999Table 1, p. 2, row 48
report
Cr5Ga6-15.15 kJ/mol (basis unstated)model[1] Belgacem-Bouzida 2005
cites Grobner 1999 doi
Table 4, p. 4, row 11
report
Cr5Ga6-15 kJ/mol (basis unstated)model[1] Belgacem-Bouzida 2005
cites Djaballah 1999
Table 4, p. 4, row 12
report
Cr5Ga6-15 kJ/mol-atom298.15model[2] Gröbner 1999
cites F 1988
Table 1, p. 2, row 49
report
Cr5Ga6-12.31 kJ/mol (basis unstated)model[1] Belgacem-Bouzida 2005Table 4, p. 4, row 13
report
Cr5Ga6-4.7 kJ/mol-atom850experimental[2] Gröbner 1999
cites Gonchuruk 1981
Table 1, p. 2, row 47
report
Cr5Ga6-4.7 kJ/mol (basis unstated)298.15experimental[1] Belgacem-Bouzida 2005
cites Goncharuk 1981
Table 4, p. 4, row 10
report
CrGaCrGa-16 kJ/mol-atom298.15model-1.491 (mp-aaacphey)-0.148 (oqmd-2052343)[2] Gröbner 1999
cites F 1988
Table 1, p. 2, row 45
report
CrGa-7.29 kJ/mol (basis unstated)model[1] Belgacem-Bouzida 2005
cites Grobner 1999 doi
Table 4, p. 4, row 8
report
CrGaCrGa-7.29 kJ/mol-atom298.15model-1.491 (mp-aaacphey)-0.148 (oqmd-2052343)[2] Gröbner 1999Table 1, p. 2, row 46
report
CrGa-6.06 kJ/mol (basis unstated)model[1] Belgacem-Bouzida 2005Table 4, p. 4, row 9
report
CrGa4-14.5 kJ/mol (basis unstated) ± 1298.15experimental[1] Belgacem-Bouzida 2005Table 4, p. 4, row 17
report
CrGa4-13.3 kJ/mol (basis unstated)model[1] Belgacem-Bouzida 2005Table 4, p. 4, row 18
report
CrGa4-8.7 kJ/mol (basis unstated)model[1] Belgacem-Bouzida 2005
cites Grobner 1999 doi
Table 4, p. 4, row 15
report
CrGa4CrGa4-8.7 kJ/mol-atom298.15model-15.083 (mp-aaacixqu)-14.848 (oqmd-29545)[2] Gröbner 1999Table 1, p. 2, row 51
report
CrGa4CrGa4-8 kJ/mol-atom298.15model-15.083 (mp-aaacixqu)-14.848 (oqmd-29545)[2] Gröbner 1999
cites F 1988
Table 1, p. 2, row 52
report
CrGa4-8 kJ/mol (basis unstated)model[1] Belgacem-Bouzida 2005
cites Djaballah 1999
Table 4, p. 4, row 16
report
CrGa4-7.6 kJ/mol (basis unstated)298.15experimental[1] Belgacem-Bouzida 2005
cites Goncharuk 1981
Table 4, p. 4, row 14
report
CrGa4CrGa4-7.6 kJ/mol-atom850experimental-15.083 (mp-aaacixqu)-14.848 (oqmd-29545)[2] Gröbner 1999
cites Gonchuruk 1981
Table 1, p. 2, row 50
report
α-Cr3Ga-8.56 kJ/mol (basis unstated)1323.15experimental[1] Belgacem-Bouzida 2005Table 1, p. 3, row 2
report
α-Cr3Ga-8.1 kJ/mol (basis unstated)1323.15experimental[1] Belgacem-Bouzida 2005Table 1, p. 3, row 2
report
α-Cr3Ga-7.97 kJ/mol (basis unstated)1323.15experimental[1] Belgacem-Bouzida 2005Table 1, p. 3, row 4
report
α-Cr3Ga-7.76 kJ/mol (basis unstated)1323.15experimental[1] Belgacem-Bouzida 2005Table 1, p. 3, row 3
report
β-Cr3Ga-7.25 kJ/mol (basis unstated)1423.15experimental[1] Belgacem-Bouzida 2005Table 2, p. 3, row 1
report

Other properties

Formation (12)

Formation, Cr–Ga system
PropertyValueT (K)Phases / compositionClassSourceLocationQuote
Entropy of formation
printed: ΔfS
5.444 J/mol (basis unstated)/KCr3Ga (α)
alloy: Ga 0.25
model[1] Belgacem-Bouzida 2005Table 4, p. 4, row 5
report
Entropy of formation
printed: ΔfS
1.884 J/mol (basis unstated)/KCr3Ga (α)
alloy: Ga 0.25
model[1] Belgacem-Bouzida 2005
cites Grobner 1999 doi
Table 4, p. 4, row 2
report
Entropy of formation
printed: ΔfS
6.362 J/mol (basis unstated)/KCr3Ga (β)
alloy: Ga 0.25
model[1] Belgacem-Bouzida 2005Table 4, p. 4, row 7
report
Entropy of formation
printed: ΔfS
2.37 J/mol (basis unstated)/KCr5Ga6
alloy: Ga 0.545455
model[1] Belgacem-Bouzida 2005Table 4, p. 4, row 13
report
Entropy of formation
printed: ΔfS
0.792 J/mol (basis unstated)/KCr5Ga6
alloy: Ga 0.545455
model[1] Belgacem-Bouzida 2005
cites Grobner 1999 doi
Table 4, p. 4, row 11
report
Entropy of formation
printed: ΔfS
6.146 J/mol (basis unstated)/KCrGa
alloy: Ga 0.5
model[1] Belgacem-Bouzida 2005
cites Grobner 1999 doi
Table 4, p. 4, row 8
report
Entropy of formation
printed: ΔfS
8.378 J/mol (basis unstated)/KCrGa
alloy: Ga 0.5
model[1] Belgacem-Bouzida 2005Table 4, p. 4, row 9
report
Entropy of formation
printed: ΔfS
0.435 J/mol (basis unstated)/KCrGa4
alloy: Ga 0.8
model[1] Belgacem-Bouzida 2005Table 4, p. 4, row 18
report
Entropy of formation
printed: ΔfS
6.3 J/mol (basis unstated)/KCrGa4
alloy: Ga 0.8
model[1] Belgacem-Bouzida 2005
cites Grobner 1999 doi
Table 4, p. 4, row 15
report
Entropy of formation
printed: ΔfS
2.7 J/mol (basis unstated)/K298.15Cr3Ga (α)
alloy: Ga 0.25
experimental[1] Belgacem-Bouzida 2005
cites Goncharuk 1981
Table 4, p. 4, row 1
report
Entropy of formation
printed: ΔfS
4.8 J/mol (basis unstated)/K298.15Cr5Ga6
alloy: Ga 0.545455
experimental[1] Belgacem-Bouzida 2005
cites Goncharuk 1981
Table 4, p. 4, row 10
report
Entropy of formation
printed: ΔfS
2.9 J/mol (basis unstated)/K298.15CrGa4
alloy: Ga 0.8
experimental[1] Belgacem-Bouzida 2005
cites Goncharuk 1981
Table 4, p. 4, row 14
report

Heat capacity / entropy / enthalpy (3)

Heat capacity / entropy / enthalpy, Cr–Ga system
PropertyValueT (K)Phases / compositionClassSourceLocationQuote
Heat content
printed: Enthalpy of heating
31390 J/mol810.65α-Cr3Ga
alloy: Ga 0.25
experimental[1] Belgacem-Bouzida 2005Table 1, p. 3, row 5
report
Heat content
printed: Enthalpy of heating
34900 J/mol860.65β-Cr3Ga
alloy: Ga 0.25
experimental[1] Belgacem-Bouzida 2005Table 2, p. 3, row 4
report
Heat content
printed: Enthalpy of heating
31390 J/mol1323.15α-Cr3Ga
alloy: Ga 0.25
experimental[1] Belgacem-Bouzida 2005Table 1, p. 3, row 1
report

Sources

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

  1. A. Belgacem-Bouzida, Y. Djaballah, M. Notin, Calorimetric measurement of the intermetallic compounds Cr3Ga and CrGa4 and thermodynamic assessment of the (Cr–Ga) system, Journal of Alloys and Compounds 397, 155-160 (2005). doi:10.1016/j.jallcom.2005.01.026
  2. J. Gröbner, R. Wenzel, G. G. Fischer, R. Schmid-Fetzer, Thermodynamic calculation of the binary systems M-Ga and investigation of ternary M-Ga-N phase equilibria (M=Ni, Co, Pd, Cr), JPE 20, 615-625 (1999). doi:10.1361/105497199770340608