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Formation of metal (Iron)-oxide nanostructures and nanocomposites by reactive sputtering and low-temperature reoxidation

Authors
  • Kotenev, V. A.1
  • Tyurin, D. N.1
  • Tsivadze, A. Yu.1
  • Petrunin, M. A.1
  • Maksaeva, L. B.1
  • Puryaeva, T. P.1
  • 1 Russian Academy of Sciences, Frumkin Institute of Physical Chemistry and Electrochemistry, Leninskii pr. 31, Moscow, 119991, Russia , Moscow (Russia)
Type
Published Article
Journal
Protection of Metals
Publisher
SP MAIK Nauka/Interperiodica
Publication Date
Nov 09, 2008
Volume
44
Issue
6
Pages
589–592
Identifiers
DOI: 10.1134/S003317320806009X
Source
Springer Nature
Keywords
License
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Abstract

Morphology and composition of nanostructured metal-oxide coating prepared by iron reactive sputtering and subsequent low-temperature oxidation in air at 50°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 α-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.

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