A comparative study of Ni0.7Zn0.3Fe2O4obtained by sol-gel auto-combustion and flash combustion methods

Abstract
In this study, the nickel–zinc ferrites were prepared via two different methods: the sol-gel auto combustion method and the flash combustion method. Obtained reaction products were sintered at different temperatures 900, 1100 and 1300 °C. The structural and microstructural, as well as electric and dielectric properties of different samples were discussed. The synthesis method has a marked effect on crystalline order, grain size and its distribution, electrical resistivity and dielectric properties.