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Microstructure DC resistivity and magnetic property of Ni-Zn ferrite nano-powders synthesized by EDTA precursor based method

P. P. SARANGI1, S. R. VADERA2, M. K. PATRA2, N. N. GHOSH1,*

Affiliation

  1. Chemistry Group, Birla Institute of Technology and Science – Pilani, Goa Campus, Zuarinagar – 403726, India
  2. Defence Lab, Rajasthan, Jodhpur 342011, India

Abstract

Ni1-xZnxFe2O4 (0 ≤ x ≤1) nanopowders (average particle size ~ 30 nm) have been synthesized by using a ethylenediamine tetraacetic acid precursor based method. The synthesized nanopowders were obtained by calcining the precursors in air at 4500 C. Microstructures of the nanopowders and samples obtained on sintering have been studied by using Scanning Electron Microscopy. DC electrical resistivity was found to be ~107 Ωcm for the as-synthesized nanopowders and ~106 Ωcm for sintered samples. Room temperature magnetization has also been measured for all compositions and it exhibits a decrease with increasing Zn content in the samples..

Keywords

Ferrite, Nanopowders, Microstructure, SEM, Resistivity.

Submitted at: May 25, 2010
Accepted at: June 16, 2010

Citation

P. P. SARANGI, S. R. VADERA, M. K. PATRA, N. N. GHOSH, Microstructure DC resistivity and magnetic property of Ni-Zn ferrite nano-powders synthesized by EDTA precursor based method, Journal of Optoelectronics and Advanced Materials Vol. 12, Iss. 6, pp. 1279-1285 (2010)