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J. Korean Ceram. Soc. > Volume 35(8); 1998 > Article
Journal of the Korean Ceramic Society 1998;35(8): 836.
첨가제 및 분위기 제어가 Mn-Zn Ferrite의 자기적 특성에 미치는 영향
이웅용, 이대희, 김창현1, 이병교
경북대학교 무기재료공학과
1가야대학교 공학부 전자세라믹공학부
Effect of Additives and Control of Sintering Atomsphere on Magnetic Properties of Mn-Zn Ferrite
In this experiment well-know additives for Mn-Zn ferrites CaO and {{{{ { SiO}_{2 } }} were added at various content and their effects on microstructures and magnetic properties with sintering atmosphere were examined. By adding up to 0.04wt% {{{{ { SiO}_{2 } }} and and 0.06wt% CaO the sintered density was increased and then decreased gra-dually. Higher sintered density and initial permeability were observed by adding both CaO and {{{{ { SiO}_{2 } }} than by adding CaO or {{{{ { SiO}_{2 } }} alone. Without any additives initial permeability and tan$delta$/${mu}$ decreased at 1000kHz as oxidation degree(${gamma}$) increased.
Key words: Mn-Zn ferrite, Initial permeability, Oxidation degree
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