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Modified Synthesis Temperature of Ba3 Co1.7 Ni0.1 Cu0.1 Mn0.1 Fe24 O41 Z-type Ferrite nanoparticles prepared by Co-precipitation Method
Paper ID : 2457-UFGNSM13-FULL (R1)
Authors:
Ali Ghasemi, Gholam reza gordani
Department of Materials Engineering, Malek Ashtar University of Technology, Shahin shahr, Isfahan, Iran
Abstract:
In this study, the low temperature synthesis of barium-Z type hexaferrite nanoparticles was considered. In this manner, the Z-type hexaferrite with the chemical composition of Ba3 Co1.7 Ni0.1 Cu0.1 Mn0.1 Fe24 O41 was synthesized at different temperatures of 900, 1000 and 1100 ⁰C for 3hr.
An X-Ray diffraction, field emission scanning electron microscopy (FE-SEM) and a vibrating sample magnetometer (VSM) analysis were carried out to investigate structural and magnetic properties of samples. XRD results showed that the Z-type ferrite phase was formed in all samples. However, At the low temperature synthesis (T=900 ⁰C), the Ba2Me2Fe12O22 and BaFe2O4 phases were also detected. FE-SEM micrographs showed that with increasing the synthesis temperature, the particle size was increased. It was found that the saturation of magnetization was slightly increased from 54 to 55. 5emu⁄gr with an increase in synthesis temperature from 900 to 1100⁰C, while the coercivity increased initially from 670 Oe to 860 Oe and then decreased to 488 Oe. The results also indicated that the temperature of 1000⁰C was the optimum synthesis temperature of
Ba-Z type hexaferrite nanoparticles, which was much lower than that of Z-type hexaferrite produced by previous researchers.
Keywords:
Z-type hexaferrite, Co-precipitation, magnetic property, synthesis temperature
Status : Paper Accepted (Poster Presentation)