Preparation of high-permeability NiCuZn ferrite

J Zhejiang Univ Sci B. 2005 Jun;6(6):580-3. doi: 10.1631/jzus.2005.B0580.

Abstract

Appropriate addition of CuO/V2O5 and the reduction of the granularity of the raw materials particle decrease the sintering temperature of NiZn ferrite from 1200 degrees C to 930 degrees C. Furthermore, the magnetic properties of the NiZn ferrite prepared at low temperature of 930 degrees C is superior to that of the NiZn ferrite prepared by sintering at high temperature of 1200 degrees C because the microstructure of the NiZn ferrite sintered at 930 degrees C is more uniform and compact than that of the NiZn ferrite sintered at 1200 degrees C. The high permeability of 1700 and relative loss coefficient tandelta/mu(i) of 9.0x10(-6) at 100 kHz was achieved in the (Ni0.17Zn0.63Cu0.20)Fe1.915O4 ferrite.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Copper / analysis
  • Copper / chemistry*
  • Crystallization / methods*
  • Electric Impedance
  • Ferric Compounds / analysis
  • Ferric Compounds / chemistry*
  • Magnetics*
  • Materials Testing
  • Molecular Conformation
  • Molecular Weight
  • Nickel / analysis
  • Nickel / chemistry*
  • Particle Size
  • Surface Properties
  • Temperature
  • Zinc Compounds / analysis
  • Zinc Compounds / chemistry*

Substances

  • Ferric Compounds
  • Zinc Compounds
  • nickel copper alloy
  • ferrite
  • Copper
  • Nickel