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Microstructure and magnetic behaviour of Ni-Zn-Co ferrites

B. PARVATHEESWARA RAO1, O. F. CALTUN2,*

Affiliation

  1. Department of Physics, Andhra University, Visakhapatnam 530 003, India
  2. Faculty of Physics, Al.I. Cuza University, Iasi, 700506 Romania

Abstract

Ni-Zn-Co ferrites with the formula Ni0.35 Zn0.65-x Cox Fe2 O4 have been prepared by classical ceramic method. X-ray diffraction patterns confirm single phase cubic spinel structure in all the samples. Saturation magnetisation, initial permeability and relative loss factor measurements are made on the samples. Micrographs are taken on sintered surfaces of the samples. The variations have been interpreted in terms of Co substitutions contributed to magnetic interactions between the cations and microstructural changes brought about by the sintering conditions..

Keywords

Ni-Zn ferrites, Cobalt substitution, Magnetic interactions, Microstructure.

Submitted at: March 15, 2006
Accepted at: May 18, 2006

Citation

B. PARVATHEESWARA RAO, O. F. CALTUN, Microstructure and magnetic behaviour of Ni-Zn-Co ferrites, Journal of Optoelectronics and Advanced Materials Vol. 8, Iss. 3, pp. 995-997 (2006)