Comparing the dynamic and thermodynamic behaviors of Al86Ni9-La5/(La0.5Ce0.5)5 amorphous alloys

作者: G.H. Li , W.M. Wang , X.F. Bian , J.T. Zhang , R. Li

DOI: 10.1016/J.JALLCOM.2008.11.142

关键词: ViscosityDilatometerViscometerAmorphous solidThermal expansionAmorphous metalThermodynamicsThermal analysisDifferential scanning calorimetryMaterials scienceMechanical engineeringMaterials ChemistryMechanics of MaterialsMetals and Alloys

摘要: Abstract The dynamic viscosities and thermodynamic dilatometric behaviors of Al86Ni9La5 Al86Ni9(La0.5Ce0.5)5 amorphous alloys were investigated using viscometer, differential scanning calorimetry (DSC) conventional dilatometer. Comparing with alloy, alloy exhibits a larger viscosity average thermal expansion coefficient in the linear zone (αexp). data suggest that partial substitution La by Ce decreases quantity free volume Al–Ni–La system improving continuous degree atomic size, which leads to improvement glass forming ability.

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