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제조 공정 Parameter에 따른 NiCuZn Ferrite의 투자율과 Qmax 주파수 변화
신재영(J. Y. Shin),박지호(J. H. Park),박진채(J. C. Park),한종수(J. S. Hahn),송병무(B. M. Song) 한국자기학회 1997 韓國磁氣學會誌 Vol.7 No.1
Composition and process conditions for low temperature sintered NiCuZn ferrites were investigated, so as to fabricate multilayered chip inductor. The Fe₂O₃ deficiency for low temperature sintering was decreased with NiO contents of NiCuZn ferrites. The permeability of NiCuZn ferrites can be controlled in the range of 12~562 with the variation of NiO and Co₃O₄ contents. The Qmax frequency of NiCuZn ferrites was decreased from 50 ㎒ to 3 ㎒ linearly with permeability increase from 60 to 560. The relation between the Qmax frequency(Y) and permeability (X) of NiCuZn ferrites was expressed with the following empirical equation, logY=4.2-1.4 logX.