Influence of Microwave Calcination on Microstructure and Magnetic Properties of Sr-Hexagonal Ferrite

Abstract:

The improvement of the microstructure of Sr-hexagonal ferrite and their magnetic properties by microwave calcined method was studied, the aim of the study was to obtain a fine grained microstructure in calcined stage. There was tendency to induce a large anisotropic during grain growth, microwave calcination method can succeed in obtaining homogeneous grain growth ,and help to reduce the calcination temperature and shorten the calcination time. The ferrites with saturation magnetization, remanent magnetization and intrinsic coercivity of 70.322emu/g, 36.182emu/g, 3343.1Oe, respectively, obtained in samples calcined at 1140°C for 30 min.

• Periodical: Advanced Materials Research (Volume 668)
• Pages: 741-744
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.668.741
• Online since: March 2013
• Authors: Zhong Yan Chen, Yuan Zhou, Fu Chen, Ze Kun Feng
• Keywords: Magnetic Property, Microwave Calcinations, Sr-Hexgnoal Ferrite

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