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Nickel Ferrite Nanocrystallites Synthesized by Sol-Gel and Coprecipitation Methods: A Comparative Study

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Abstract:

The microstructures and magnetic properties of nickel ferrite synthesized by coprecipitation and sol–gel methods are comparatively studied. The coprecipitation-derived samples have Fe/Ni ratios differing from their raw materials because of the precipitation washing process. The stoichiometric metal cations (Fe/Ni=2.0) in the xerogel facilitated the nucleation and growth of nickel ferrite nanocrystallites at lower calcination temperature in sol–gel method. The samples consist of nickel ferrite nanocrystallites, and have superparamagnetic properties at room temperature.

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Periodical:

Advanced Materials Research (Volumes 79-82)

Pages:

305-308

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.79-82.305

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Online since:

August 2009

Authors:

Ming Wei Li, Cui Ping Liu, Xiao Mei Gao

Keywords:

Chemical Synthesis, Magnetic Material, Microstructure, Nanocrystalline

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© 2009 Trans Tech Publications Ltd. All Rights Reserved

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DOI: 10.1016/s0040-6090(02)00021-4

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