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Preparation of nanocomposites containing iron and nickel–zinc ferrite

Published online by Cambridge University Press:  31 January 2011

M. Pal ,
D. Das ,
S. N. Chintalapudi  and
D. Chakravorty
M. Pal
Affiliation:
Indian Association for the Cultivation of Science, Jadavpur, Calcutta, 700 032, India
D. Das
Affiliation:
Inter University Consortium for DAE facilities, LB8 Sector 3, Bidhan Nagar, Calcutta, 700 031, India
S. N. Chintalapudi
Affiliation:
Inter University Consortium for DAE facilities, LB8 Sector 3, Bidhan Nagar, Calcutta, 700 031, India
D. Chakravorty*
Affiliation:
Indian Association for the Cultivation of Science, Jadavpur, Calcutta, 700 032, India
*
a)Address all correspondence to this author. Also affiliated with Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore, 560064, India.
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Abstract

Composites consisting of nanometer-sized nickel–zinc ferrite and α-iron were prepared by subjecting micrometer-sized ferrite particles to a reduction treatment in the presence of α–Fe2O3. The materials were characterized by x-ray diffraction, electron microscopy, Mossbauer spectroscopy, and magnetization measurements. A wide range of saturation magnetization and coercivity can be obtained by changing the reduction schedule. The reduction process appears to break down the particle size of the precursor powder of nickel–zinc ferrite.

Type
Articles
Information
Journal of Materials Research , Volume 15 , Issue 3 , March 2000 , pp. 683 - 688
Copyright
Copyright © Materials Research Society 2000

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References

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