Nanocrystals grown in amorphous Cr and CrNi thin films |
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Authors: | M I Bîrjega N Popescu-Pogrion C A Constantin |
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Institution: | 1. Institute of Atomic Physics, Institute of Physics and Technology of Materials, P.O. Box MG-6, Bucharest, Romania
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Abstract: | The structure of vacuum annealed amorphous sputtered Cr and CrNi (55:45) thin films has been studied by transmission electron microscopy (TEM) and electron diffraction (TED). The thin films with thicknesses ranging from 150 to 600 Å were annealed while still on their alkali halide substrates under high vacuum at temperatures ranging from 200 to 370°C. The TEM and TED data permitted to establish the annealing conditions (temperature, duration), which lead to the nucleation and growth of nanosized crystals in the Cr and CrNi icosahedral glasses. |
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