Isothermal and non-isothermal differential scanning calorimetry
experiments were carried out to study rapidly solidified
Al90Fe5Ce5 alloy. Microstructural analysis suggests
that icosahedral nanoparticles are homogeneously distributed in the
matrix of annealed amorphous Al90Fe5Ce5 alloy. The
presence and homogeneous distribution of icosahedral structure units
and icosahedral short-range domains appear to be critical for the
formation and stability of the amorphous phase.
Highly efficient saturation up-conversion bright visible luminescence was obtained using 1.55 μm laser diode excitation power as low as ∼0.03 W cm−2 in lab-synthesized Y2O3:Er3+ microspheres.
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