Abstract

The forming and decomposition ofAl84Ce6Ni10 and Al81Ce10Ni9 glasses produced by melt spinning under different melt temperatures and coolingrates was investigated by means of x-ray diffraction (XRD), electron microscopy(TEM and ESEM), electrical resistivity (ER) and calorimetric measurementsduring isothermal and continuous heating. The influence of the different productionconditions on the relaxation, glass transition and crystallization are analysed. In theAl84Ce6Ni10 glasses the melt temperature and cooling rate do not have a stronginfluence on the glass forming, the transition to the supercooled liquid (SL)and the formation of a eutectic as the first crystalline structure. In theAl81Ce10Ni9 materials the different synthesis conditions produce fully or partial amorphous structure inthe as-quenched state. The transformation to the crystalline structure without glasstransition occurs with the formation of NC-fcc Al (nanocrystals) before a eutecticcrystallization is dominant.

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