Structure and properties of MnZn ferrite nanoparticles synthesized via sol–gel autocombustion method
MnZn ferrite powder particles were prepared via a sol–gel autocombustion method using nitrates as raw materials. Transmission electron micrographs revealed that the particles were uniform and decentralized with sizes of 20–30 nm. X-ray diffraction patterns showed characteristic features of Mn0.5Zn0.5Fe2O4 ferrite crystals with a nanocrystalline cubic spinel structure and crystallite size of 21.5 nm. The lattice constant determined from the Rietveld refinement was 8.475 Å. A saturated magnetic induction intensity of 39.18 emu/g and coercive force of only 18.1 Oe were measured using a quantum design physical property measurement system.
KeywordsFerrite Rietveld Refinement Ferric Nitrate Carbohydrazide Sinter Activity
This project was supported by the Planned Science and Technology Project of Hunan Province (2014GK3090) and Provincial Natural Science Foundation of Hunan, China.