Microwave hydrothermal synthesis and characterization of nanosize NiCuZn ferrites

T. Krishnaveni, S. Komarneni, S. R. Murthy

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

Ni0.5-xCuxZn0.5Fe2O4 (x = 0,4,6,8,12 mol%) nanoferrite powders were synthesized using microwave-hydrothermal (M-H) method. Nanophase ferrites with high surface area were synthesized at 160 °C after a treatment time of 1 h. The ferrite formation conditions such as pH, temperature and time were optimized. The phase identification of the prepared samples was done by X-ray diffraction, characterized by IR spectra and crystal size and morphology were determined by transmission electron microscopy (TEM). The size of the nanoferrite powders synthesized was 20-60 nm. The nanoferrite powders were conventionally sintered at a temperature of 900 °C/4 h. The variations of the sintered density, saturation magnetization and electrical resistivity as a function of copper concentration at room temperature have been investigated. Dielectric properties were measured in the frequency range of 1MHz-1.8 GHz and obtained results were understood with the help of available theories.

Original languageEnglish (US)
Pages (from-to)143-148
Number of pages6
JournalSynthesis and Reactivity in Inorganic, Metal-Organic and Nano-Metal Chemistry
Volume36
Issue number1
DOIs
StatePublished - Apr 3 2006

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

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