Microwave Absorption of Ferrite Powders by Wet-Direct Synthesis

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J. Korean Ceram. Soc. > Volume 28(11); 1991 > Article

Journal of the Korean Ceramic Society 1991;28(11): 843.

습식직접합성 Ferrite 분말의 전파흡수능

남경호, 이경희, 이병하

명지대학교 공과대학 무기재료공학과

Microwave Absorption of Ferrite Powders by Wet-Direct Synthesis

ABSTRACT

There is a growing demend for absorptive electromagentic shielding materials for wide band frequency application. In this study, the absorber which consists of a rubber plus Ni-Zn ferrite which have been prepared by direct-wet method. A rubber ferrite composite for electromagnetic shielding, it is most importan facter the homogeneous ultra fine size and high dispersitive ferrite powder. Direct-wet method and solid-solid reaction method for preparing of ultra fine ferrite powder was used. It has been experimentally verified that the powder which prepared by direct-wet method was very fine and almost same size spherical powder, the composite ferrite have excellent electromagnetic wave absorption in X-band.