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Investigation of the physico-chemical properties of nanometric NiLa ferrite/PST matrix
Faculty
Science
Year:
2010
Type of Publication:
Article
Pages:
1149-1155
Authors:
Ahmed, M. A, Mansour, S. F, El-Dek, S. I
DOI:
10.1016/j.ssi.2010.06.031
Journal:
SOLID STATE IONICS ELSEVIER SCIENCE BV
Volume:
181
Research Area:
Chemistry; Physics
ISSN
ISI:000282165300001
Keywords :
Ni La nanoferrite, Citrate method, Magnetic susceptibility, Ferrite/PST matrix, Dielectric constant
Abstract:
Nickel ferrite NiLa(y)Fe(2-y)O(4) (0 <= y <= 0.05) was synthesized using citrate precursor method. The structure, particle size, shape and the homogeneity of the resulting nanoparticles were studied by X-ray diffraction and transmission electron microscope (TEM). IR was used to study the composition characteristics of the assynthesized sample. Magnetic susceptibility of the samples with different La contents was studied at different temperatures and magnetic field intensities. Ac conductivity, dielectric constant and loss tangent of ferrite polymer composites prepared with different ratios of 10\%, 30\% and 50\% in polystyrene (PST) matrix have been investigated in the frequency range (10(2)-10(6) Hz). The dc magnetic susceptibility of the ferrite/PST matrix is also reported. (C) 2010 Elsevier B.V. All rights reserved.
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