Before revision: CompositionRN (%)PhaseHardness (GPa)Elastic Modulus (GPa)Reference(FeCoNiCuVZrAl)N30Amorphous12E = 166(TiZrNbHfTa)N25FCC32.9—(TiVCrAlZr)N50FCC11E = 151(AlCrTaTiZr)N14FCC32E = 368(FeCoNiCrCuAl0.5)N33.3Amorphous10.4—(FeCoNiCrCuAlMn)N23.1Amorphous11.8—(AlCrMnMoNiZr)N50FCC11.9E = 202(TiVCrZrHf)N3.85FCC23.8E = 267.3(NbTiAlSiW)N16.67Amorphous13.6E = 154.4(NbTiAlSi)N16.67FCC20.5E = 206.8(AlCrNbSiTiV)N5FCC35E ~ 33728FCC41E = 360(AlCrTaTiZr)N50FCC36E = 360(Al23.1Cr30.8Nb7.7Si7.7Ti30.7)N50—FCC36.1E ~ 430(Al29.1Cr30.8Nb11.2Si7.7Ti21.2)N50FCC36.7E ~ 380(AlCrSiTiZr)N5Amorphous17E ~ 23230FCC16E ~ 232(AlCrMoTaTiZr)N40FCC40.2E = 420(AlCrTaTiZr)N50FCC35E = 350(CrTaTiVZr)N20FCC34.3E ~ 268(CrNbTiAlV)N67.86FCC35.3E = 353.7(HfNbTiVZr)N33.33FCC7.6E = 270 A subset of ultra-high temperature ceramics (UHTC) includes high-entropy ultra-high temperature ceramics, also referred to as compositionally complex ceramics (CCC).
After revision: High-entropy ultra-high temperature ceramicsCompositionRN (%)PhaseHardness (GPa)Elastic Modulus (GPa)Reference(FeCoNiCuVZrAl)N30Amorphous12E = 166(TiZrNbHfTa)N25FCC32.9—(TiVCrAlZr)N50FCC11E = 151(AlCrTaTiZr)N14FCC32E = 368(FeCoNiCrCuAl0.5)N33.3Amorphous10.4—(FeCoNiCrCuAlMn)N23.1Amorphous11.8—(AlCrMnMoNiZr)N50FCC11.9E = 202(TiVCrZrHf)N3.85FCC23.8E = 267.3(NbTiAlSiW)N16.67Amorphous13.6E = 154.4(NbTiAlSi)N16.67FCC20.5E = 206.8(AlCrNbSiTiV)N5FCC35E ~ 33728FCC41E = 360(AlCrTaTiZr)N50FCC36E = 360(Al23.1Cr30.8Nb7.7Si7.7Ti30.7)N50—FCC36.1E ~ 430(Al29.1Cr30.8Nb11.2Si7.7Ti21.2)N50FCC36.7E ~ 380(AlCrSiTiZr)N5Amorphous17E ~ 23230FCC16E ~ 232(AlCrMoTaTiZr)N40FCC40.2E = 420(AlCrTaTiZr)N50FCC35E = 350(CrTaTiVZr)N20FCC34.3E ~ 268(CrNbTiAlV)N67.86FCC35.3E = 353.7(HfNbTiVZr)N33.33FCC7.6E = 270 A subset of ultra-high temperature ceramics (UHTC) includes high-entropy ultra-high temperature ceramics, also referred to as compositionally complex ceramics (CCC).