Authors : Waghmare S.P, Kakde A. S, Sisyawar A.C, Borikar D.M, Rewatkar K.G
Page Nos : 1354-1359
Description :
Calcium hexaferrite CaNi2Fe11-xAlxO22 (x=1 & x=1.5) nanoparticles were synthesized by microwave assisted sol-gel auto combustion method. The dielectric characterization such as ac conductivity, dielectric constant and dielectric loss tangent of the synthesized sample were studied. The real part of the ac conductivity σac, dielectric constant έ and dielectric loss tangent tan δ were measured for different frequencies at room temperature and in the temperature range of 303K-623K. Electrical conduction in ferrite can be explained by Verway hoping mechanism of electron. Dielectric constant and dielectric loss tangent tan δ were explained on the basis of Maxwell interface polarization in accordance with Koops phenomenological model. The low dielectric behavior makes ferrite materials useful in high frequency applications.Calcium hexaferrite CaNi2Fe11-xAlxO22 (x=1 & x=1.5) nanoparticles were synthesized by microwave assisted sol-gel auto combustion method. The dielectric characterization such as ac conductivity, dielectric constant and dielectric loss tangent of the synthesized sample were studied. The real part of the ac conductivity σac, dielectric constant έ and dielectric loss tangent tan δ were measured for different frequencies at room temperature and in the temperature range of 303K-623K. Electrical conduction in ferrite can be explained by Verway hoping mechanism of electron. Dielectric constant and dielectric loss tangent tan δ were explained on the basis of Maxwell interface polarization in accordance with Koops phenomenological model. The low dielectric behavior makes ferrite materials useful in high frequency applications.
