Magnetic Properties and Magnetization Process of Low Temperature Sintering MnZn Ferrites

Abstract

Magnetic properties and magnetization process of MnZn ferrite cores by low temperature sintering were investigated. The powder was prepared using the conventional ball milling. The specimens were sintered at 900°C for 5 houres in reductive atomosphere including CO2 and H2. The flow rate H2/CO2 was the best between 1 and 2%. The initial permeability was 2379 at 100kHz, 0.5V.Magnetization process was observed by Bitter method. Wide width magnetic domains (180°domain) were easier magnetized than narrow one. On the other hand, 90°domains did not change the width with increasing magnetic field.