Bulk amorphous Zr(54.5)Ti(7.5)Al(10)Cu(20)Ni(8) is investigated by means of small-angel neutron scattering (SANS) diffractional-scanning calorimetry (DSC) high-resolution electron microscopy (HREM) and other methods. The formation of ultrafine nonstructures in the glassy phase is observed and explained by a new model. Structural fluctuations of randomly distributed partially ordered domains grow during annealing just below the glass transition temperature by local re-ordering. During annealing the DSC gives evidence for a increasing volume fraction ...
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