Comparative Studies of Multiferroic BiFeO₃ Powders Prepared by Hydrothermal Method versus Sol-Gel Process

Abstract:

Multiferroic BiFeO₃ powders were synthesized by two methods: sol-gel process and hydrothermal method. The synthesized powders were characterized by X-ray diffraction (XRD), field emission scanning electron microscope (SEM) and particle size distribution analysis. The results obtained by XRD, which is consistent with 86-1518 JCPDS card, show that powders prepared by hydrothermal method are composed of the single phase with the trigonal structure (perovskite-type). It can be found by particle size distribution analysis that the particle size of the samples prepared by sol-gel process is finer and more uniform than that of the samples synthesized by the hydrothermal method. The SEM images of samples depicts that the synthesized BiFeO₃ powders are united and the average grain size of hydrothermal processed samples is significantly large as compared to the sol-gel derived sample.

• Periodical: Applied Mechanics and Materials (Volumes 670-671)
• Pages: 113-116
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.670-671.113
• Online since: October 2014
• Authors: Xiao Yan Zhang, Xi Wei Qi*, Zhi Yuan Yang, Rui Xia Zhong
• Keywords: BiFeO₃ Powders, Hydrothermal Method, Preparation, Sol-Gel Process

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