20-22 May 2015
Asia/Bangkok timezone
The Centennial Celebration of General Relativity Theory and 80 Years of Thai Physics Graduate

Effect of Fabrication Method on the Structural and Magnetic Properties of Copper Ferrite

21 May 2015, 13:00
3h 30m
Board: MNA-26
Poster presentation Material Physics, Nanoscale Physics and Nanotechnology Poster-3

Speaker

Ms Siriwipa Pongpadung (Materials Science and Nanotechnology Program, Faculty of Science, Khon Kaen University, Khon Kaen, THAILAND 40002)

Description

Copper ferrites (CuFe$_2$O$_4$) were fabricated by self-combustion urea and glycine process (UNP, GNP), polymerized complex (PC), solid-state reaction (SSR), and molten-salt (MS) methods. The synthesized powders were calcined in static air at different temperature from 500 – 900$^{\circ}$C. The effects of the fabrication method on the microstructural and magnetic properties were investigated. X-ray diffraction (XRD) analysis results revealed the cubic CuFe$_2$O$_4$ spinel structure for UNP and MS samples and tetragonal CuFe$_2$O$_4$ spinel structure for GNP, PC, and SSR samples. Scanning electron microscopy (SEM) investigation showed that the synthesized ferrite is made up of very fine nanoparticles. By using vibrating sample magnetometer (VSM) technique, a significant change in the magnetic properties was absorbed in CuFe$_2$O$_4$ system with fabrication method and heat treatment. The magnetic hysteresis loops measured at room temperature showed that the saturation magnetization increases with increasing calcinations temperature, whereas the coercivity values decrease.

Primary author

Ms Siriwipa Pongpadung (Materials Science and Nanotechnology Program, Faculty of Science, Khon Kaen University, Khon Kaen, THAILAND 40002)

Co-author

Dr Teerasak Kamwanna (Department of Physics, Faculty of Science, Khon Kaen University, Khon Kaen, THAILAND 40002; Integrated Nanotechnology Research Center (INRC), Khon Kaen University, Khon Kaen, THAILAND 40002)

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