Probing the structure of nanograined CuO powders

The microstructural properties of polycrystalline CuO powders and their evolution during controlled high energetic ball milling (HEBM) were studied using conventional X-ray diffraction (XRD) techniques and in situ temperature-dependent small and wide angle scattering (SAXS–WAXS) synchrotron radiatio...

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Detalles Bibliográficos
Autores principales: Bianchi, Ana Elisa, Plivelic, Tomás S., Punte, Graciela María del Carmen, Torriani, Iris L.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2008
Materias:
Ciencias Exactas
Física
Isothermal Treatment
Surface Fractal Dimension
Unit Cell Expansion
WAXS Experiment
Surface Fractal Behavior
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/142370
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-142370
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
Isothermal Treatment
Surface Fractal Dimension
Unit Cell Expansion
WAXS Experiment
Surface Fractal Behavior
spellingShingle Ciencias Exactas
Física
Isothermal Treatment
Surface Fractal Dimension
Unit Cell Expansion
WAXS Experiment
Surface Fractal Behavior
Bianchi, Ana Elisa
Plivelic, Tomás S.
Punte, Graciela María del Carmen
Torriani, Iris L.
Probing the structure of nanograined CuO powders
topic_facet Ciencias Exactas
Física
Isothermal Treatment
Surface Fractal Dimension
Unit Cell Expansion
WAXS Experiment
Surface Fractal Behavior
description The microstructural properties of polycrystalline CuO powders and their evolution during controlled high energetic ball milling (HEBM) were studied using conventional X-ray diffraction (XRD) techniques and in situ temperature-dependent small and wide angle scattering (SAXS–WAXS) synchrotron radiation experiments. Volume weighted average grain size, unit cell expansion, oxygen deficiency, and microstrain values as a function of milling time were obtained from XRD. SAXS data revealed different nanostructures for samples synthesized by one-step solid-state reaction (SSR) or HEBM-treated powders. The latter presented the characteristics of a multilayered nanoscale solid system with surface fractal behavior. Correlation of the XRD microstructural parameters and the power law exponent of the SAXS curves as a function of temperature and milling time provided a coherent picture of the structure of HEBM-treated powders. The overall structural information presented in this article may shed some light on the macroscopic physical properties of CuO nanostructures.
format Articulo
Articulo
author Bianchi, Ana Elisa
Plivelic, Tomás S.
Punte, Graciela María del Carmen
Torriani, Iris L.
author_facet Bianchi, Ana Elisa
Plivelic, Tomás S.
Punte, Graciela María del Carmen
Torriani, Iris L.
author_sort Bianchi, Ana Elisa
title Probing the structure of nanograined CuO powders
title_short Probing the structure of nanograined CuO powders
title_full Probing the structure of nanograined CuO powders
title_fullStr Probing the structure of nanograined CuO powders
title_full_unstemmed Probing the structure of nanograined CuO powders
title_sort probing the structure of nanograined cuo powders
publishDate 2008
url http://sedici.unlp.edu.ar/handle/10915/142370
work_keys_str_mv AT bianchianaelisa probingthestructureofnanograinedcuopowders
AT plivelictomass probingthestructureofnanograinedcuopowders
AT puntegracielamariadelcarmen probingthestructureofnanograinedcuopowders
AT torrianiirisl probingthestructureofnanograinedcuopowders
bdutipo_str Repositorios
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