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Bi₂O₃와 ZrO₂가 Ni-Cu-Zn Ferrite의 전자기적 특성에 미치는 영향 연구
손경익(Kyung Ik Son),고재귀(Jae Gui Koh) 한국자기학회 2006 韓國磁氣學會誌 Vol.16 No.4
The electromagnetic properties and microstructure of the basic composition of (Ni<SUB>0.2</SUB>Cu<SUB>0.2</SUB>ZnO<SUB>0.2</SUB>)<SUB>1.02</SUB>(Fe₂O₃)<SUB>0.98</SUB> were invested, changing the amount of the additives Bi₂O₃ and ZrO₂ and sintering temperature. The spinel structure of specimen was confirmed by the analysis of XRD patterns. Grain size and its density are increased by increasing the additive and the sintering temperature. However, the permeability increased with decreasing additive. It was also found that Bi₂O₃ had more effect on the increase of grain size and permeability rather than ZrO₂.