Surface modification of polycrystalline oxides (V2O5, MoO3, and WO3) irradiated with high-power ion beams

The influence of a high-power ion beam on polycrystalline oxides (V 2 O 5 , MoO 3 , and WO 3 ) is investigated. Oxide irradiation with ion beams with current densities of greater than ∼30 A/cm 2 is established to initiate changes in the color of irradiated layers and lead to surface-layer particle m...

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Bibliographic Details
Published in:Surface investigation, x-ray, synchrotron and neutron techniques x-ray, synchrotron and neutron techniques, 2016-11, Vol.10 (6), p.1226-1230
Main Authors: Kovivchak, V. S., Panova, T. V.
Format: Article
Language:English
Subjects:
Chemistry and Materials Science
Current density
Ion beams
Irradiation
Materials Science
Molybdenum trioxide
Nanostructure
Nanowires
Polycrystals
Surface cracks
Surfaces and Interfaces
Thin Films
Tungsten oxides
Vanadium pentoxide
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Summary:The influence of a high-power ion beam on polycrystalline oxides (V 2 O 5 , MoO 3 , and WO 3 ) is investigated. Oxide irradiation with ion beams with current densities of greater than ∼30 A/cm 2 is established to initiate changes in the color of irradiated layers and lead to surface-layer particle melting. It is demonstrated that a distinctive feature of the interaction between a high-power ion beam and V 2 O 5 is the formation of surface nanosheets and nanowires whose characteristic cross-sectional size and thickness are ∼1 μm and up to ∼40 nm, respectively. The nanosheets are generated near emerging surface cracks if the beam current density is ∼100 A/cm 2 . Possible mechanisms of surface nanostructures formation under the action of pulsed ion beams are discussed.
ISSN:1027-4510
1819-7094
DOI:10.1134/S1027451016050311