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Influence of anneal...
Influence of annealing on the structure of nanoporous oxide films on the surface of titanium‒aluminum powder alloy
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- Stepanova, K. V. (author)
- Petrozavodsk State University, Petrozavodsk, Russia,Theoretical physics department
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- Yakovleva, N. M. (author)
- Petrozavodsk State University, Petrozavodsk, Russia,Theoretical physics department
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- Kokatev, Alexander N. (author)
- Petrozavodsk State University, Petrozavodsk, Russia,Theoretical physics department
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- Pettersson, Håkan, 1962- (author)
- Högskolan i Halmstad,Tillämpad matematik och fysik (MPE-lab),Nanovetenskap
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(creator_code:org_t)
- Moscow : Maik Nauka/Interperiodica, 2016
- 2016
- English.
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In: Journal of Surface Investigation. X-ray, Synchrotron and Neutron Techniques. - Moscow : Maik Nauka/Interperiodica. - 1027-4510. ; 10:5, s. 933-941
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Oxide films obtained during anodization of Ti‒40% Al sintered powder samples in fluorine-containing electrolytes are investigated. With scanning electron microscopy and X-ray phase analysis, it is demonstrated that an X-ray amorphous nanoporous anodic oxide film is formed on the surface of the powder microparticles under optimal anodization conditions. After annealing at T = 1093 K in air and vacuum (10‒2 Pa), the oxide films are revealed to crystallize with its regular porous structure retained. The composition of the polycrystalline anodic-oxide films annealed in air is a mixture involving TiO2 (anatase and rutile) and α- and γ-Al2O3 phases and Ti2O3 and Al2TiO5 traces. The vacuum annealing process makes it possible to identify TiO2, in which anatase is the main phase, α- and γ-Al2O3, and Ti2O3 and TiO traces. However, rutile is not revealed. The presented results indicate that the application of the anodic nanostructuring of Ti‒40% Al powders is promising for the obtainment of new photocatalytic active nanomaterials. © 2016, Pleiades Publishing, Ltd.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- anodization
- nanoporous oxide films
- titanium‒aluminum powder
- alloy
- annealing
- crystallization
Publication and Content Type
- ref (subject category)
- art (subject category)
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