Nanocrystalline Ordered Vanadium Carbide: Superlattice and Nanostructure Full article
Journal |
Superlattices and Microstructures
ISSN: 0749-6036 , E-ISSN: 1096-3677 |
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Output data | Year: 2016, Volume: 90, Pages: 148-164 Pages count : 15 DOI: 10.1016/j.spmi.2015.12.006 | ||||||
Tags | Microstrains, Morphology, Nanoparticle size, Nonstoichiometry, Superstructure | ||||||
Authors |
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Affiliations |
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Funding (1)
1 | Russian Science Foundation | 14-23-00025 |
Abstract:
The crystal structure, micro- and nanostructure of coarse- and nanocrystalline powders of ordered vanadium carbide V8C7 have been examined by X-ray and neutron diffraction and electron microscopy methods. The synthesized coarse-crystalline powder of ordered vanadium carbide has flower-like morphology. It was established that the real ordered phase has the composition V8C7-δ (δ ≅ 0.03) deviating from perfect stoichiometric composition V8C7. The vanadium atoms forming the octahedral environment □V6 of vacant sites in V8C7-δ are displaced towards the vacancy □. The presence of carbon onion-like structures was found in the vanadium carbide powders with a small content of free (uncombined) carbon. The nanopowders of V8C7-δ carbide with average particle size of 20–30 nm produced by high-energy milling of coarse-crystalline powder retain the crystal structure of the initial powder, but differ in the lattice deformation distortion anisotropy.
Cite:
Kurlov A.S.
, Gusev A.I.
, Gerasimov E.Y.
, Bobrikov I.A.
, Balagurov A.M.
, Rempel A.A.
Nanocrystalline Ordered Vanadium Carbide: Superlattice and Nanostructure
Superlattices and Microstructures. 2016. V.90. P.148-164. DOI: 10.1016/j.spmi.2015.12.006 WOS Scopus РИНЦ
Nanocrystalline Ordered Vanadium Carbide: Superlattice and Nanostructure
Superlattices and Microstructures. 2016. V.90. P.148-164. DOI: 10.1016/j.spmi.2015.12.006 WOS Scopus РИНЦ
Dates:
Submitted: | Nov 2, 2015 |
Accepted: | Dec 10, 2015 |
Published online: | Dec 13, 2015 |
Published print: | Feb 1, 2016 |
Identifiers:
Web of science | WOS:000370312800017 |
Scopus | 2-s2.0-84951336327 |
Elibrary | 27568311 |
Chemical Abstracts | 2015:2087103 |
OpenAlex | W2218623467 |