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Effect of Cooling Conditions on Nano-Sized NiFe2O4 Electrical Properties

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Abstract:

Nickel ferrite NiFe2O4 nanoparticles have been prepared by sol-gel auto combustion. Two groups of samples were obtained from as-burnt and calcined powders by using various cooling conditions. The X-Ray diffraction (XRD) analyses confirm the single phase spinel structure for all samples. The grain sizes investigated by scanning electron microscopy (SEM) were found within the range of 70-100 nm. DC resistivities for different group of samples are strongly affected by cooling rate, showing the way how to control NiF2O4 electrical properties.

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Periodical:

Advanced Materials Research (Volume 222)

Pages:

263-266

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.222.263

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Online since:

April 2011

Authors:

Andris Sutka, Gundars Mezinskis, Santa Lagzdina, Gatis Bebris

Keywords:

Conduction Mechanism, Electric Property, Nanostructure, Nickel Ferrite

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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