Structural and Electrical Characterization of Li-Zn Ferrites
M. Shahjahan1, N. A. Ahmed2, S. N. Rahman3, S. Islam4, N. Khatun5, M. S. Hossain6
1M.Shahjahan, Scientific officer, Industrial Physics, Division Under BCSIR Laboratories, Dhaka Bangladesh.
2N.A. Ahmed, Principal Scientific officer, Industrial Physics, Division under BCSIR Laboratories, Dhaka Bangladesh.
3S.N. Rahman, Principal Scientific officer, Industrial Physics, Division Under BCSIR Laboratories, Dhaka Bangladesh.
4S.Islam, Senior Scientific officer, Industrial Physics, Division Under BCSIR Laboratories Dhaka Bangladesh.
5N.Khatun, Senior Scientific officer, Industrial Physics, Division Under BCSIR Laboratories Dhaka Bangladesh.
6M.S. Hossain, Senior Scientific officer, Industrial Physics, Division Under BCSIR Laboratories Dhaka Bangladesh.
Manuscript received on 11 January 2014 | Revised Manuscript received on 20 January 2014 | Manuscript Published on 30 January 2014 | PP: 48-52 | Volume-3 Issue-8, January 2014 | Retrieval Number: H1438013814/14©BEIESP
Open Access | Editorial and Publishing Policies | Cite | Mendeley | Indexing and Abstracting
© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Four ferrite samples of Li0.5xFe0.5xZn1-xFe2O4, where x= 0.6, 0.7, 0.8, 0.9 were prepared by conventional ceramic method. The dc electrical resistivity as a function of temperature has been studied and found to decrease with the increase in temperature. The Curie temperature (Tc) has been found to increase as the Zn content decreases from x=0.6 to x=0.8. But for the sample where x=0.9 the Curie temperature is less than that of the sample where x=0.8. The ac electrical conductivity (ac), dielectric constant (), the dielectric loss tangent (tan) and quality control factor (Q-factor) as a function of frequency have also been studied. The experimental results indicate that for the first three samples the ac electrical conductivity (ac) decreases with the increase in frequency up to 200 KHz and afterwards it increases with the increase in frequency. But for the sample where x=0.9 the ac conductivity (ac) increases with the increase in frequency. It has been found that with the increase in frequency the dielectric constant () and dielectric loss tangent (tan) decrease while the quality factor (Q-factor) and ac conductivity increases.
Keywords: Conventional Ceramic, Electrical Properties, Lithium Zinc, Surface Morphology.
Scope of the Article: Network Traffic Characterization and Measurements