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1 2015

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Investigation of microwave and electrical characteristics of Co-Zr substituted M-type Ba-Sr hexagonal ferrite

Singh L., Malhotra J., Singh C., Narang S. B., Chandra M.

Materials Science Poland

2015

Vol. 33, No. 2

335--339

Microwave characteristics of M-type hexagonal ferrite, Ba-0.Sr-5(0).5CoxZrxFe(12-2x) O-19 (x = 0.0 to 1.0 in steps of 0.2), have been investigated as a function of frequency and substitution at X-band. The microwave absorption has been investigated using absorber testing device method. The static I-V characteristics have been studied as a function of substitution. The results show maximum microwave absorption at higher substitution. The static current exhibits ohmic behavior from 0 to 3 V and exponential trend from 3 to 4.8 V. The microstructure influences both microwave and electrical properties. The ferrite compositions for different electromagnetic applications are also suggested by measuring the microwave absorbed, transmitted and reflected power.