Impedance spectroscopy analysis of BaFe12O19 M-type hexaferrite obtained by ceramic method |
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| Authors: | Rafael Mendonç a Almeida,Waldeci Paraguassu,Danú bia Soares Pires,Ronaldo Ribeiro Corrê a,Carlos William de Araujo Paschoal |
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| Affiliation: | 1. Departamento de Física, Universidade Federal do Maranhão, Campus do Bacanga, 65085-580, São Luis, MA, Brazil;2. Departamento de Engenharia Elétrica – Centro Federal de Educação Tecnológica do Maranhão, 65030-000, São Luis, MA, Brazil |
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| Abstract: | The impedance spectroscopy analysis for M-type BaFe12O19 (BaM) ceramics prepared by ceramic route is reported. The main aim is to investigate the electric properties in function of the synthesis parameters (milling time and milling power). It was shown that milling parameters strongly influence the electrical properties such as dielectric constant, whose magnitude increases with the milling power. Moreover the relaxation frequency is fully dependent on the milling parameters and it shifts to high frequencies when milling power decreases. Finally, impedance and dielectric loss tangent also change with milling parameters. |
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| Keywords: | A. Milling C. Dielectric properties C. Impedance |
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