Issue
J. Phys. IV France
Volume 07, Number C1, Mars 1997
7th INTERNATIONAL CONFERENCE ON FERRITES
Page(s) C1-59 - C1-60
DOI https://doi.org/10.1051/jp4:1997110
7th INTERNATIONAL CONFERENCE ON FERRITES

J. Phys. IV France 07 (1997) C1-59-C1-60

DOI: 10.1051/jp4:1997110

Microstructural Control of Mn-Zn Ferrite with Addition of Seed Grains

S.W. Doh, J.H. Park, J.H. Suk, H.J. Shon, J.H. Kim and W.D. Hur

R & D Lab., Samwha Electronics Co., Ltd., 211-1, Jangji-Ri, Dontan-Myoun, Hwasung-Gun, Kyoungki-Do, Korea


Abstract
In order to obtain desired electromagnetic properties, high initial permeability and good frequency dependance of initial permeability, seeding effects are experimented in Mn-Zn ferrite system. As adding seed grain, calcined at sintering temperature, abnormal grains are disappeared clearly, but the density of sintered Mn-Zn ferrite body and initial permeability of this ferrite body are decreased. On the contrary, in case of adding seed grain which were calcined below the calcination temperature of matrix particle, abnormal grains were remain but the initial permeability is increased with proper seed content. Compared these results with those of experiments on additive variations, mean particle size controls, sintering conditions, seeding affects on the microstructure of Mn-Zn ferrite similarly.



© EDP Sciences 1997