Formation of metal (Iron)-oxide nanostructures and nanocomposites by reactive sputtering and low-temperature reoxidationстатья
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Дата последнего поиска статьи во внешних источниках: 3 декабря 2017 г.
Аннотация:Morphology and composition of nanostructured metal-oxide coating prepared by iron reactive sputtering and subsequent low-temperature oxidation in air at 50 degrees C were studied by atomic-force microscopy (with digital processing of images), X-ray diffraction, and resistance measurements. The growth kinetics of metal-oxide nanoparticles constituting the sputtered metal-oxide composite was evaluated by the direct processing of surface AMF-images. According to the results of morphological studies after the low-temperature oxidation, the surface layer has complicated structure: the metal nanoparticles surrounded by the alpha-Fe2O3 oxide phase merge to extended rod-like structures (globules) sized, on the average, 100-200 nm lengthwise, 20-30 nm in diameter. This structure allows explaining the coatings’ functional properties important for their applications.