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Synthesis of Nano-sized NiCuZn-ferrites for Chip Inductor and Properties with Calcination Temperature

칩인덕터용 NiCuZn-ferrites 나노 분말합성 및 하소 온도에 따른 특성 변화

  • 허은광 (서울시립대학교 신소재공학과) ;
  • 김정식 (서울시립대학교 신소재공학과)
  • Published : 2003.01.01

Abstract

In this study, nano-sized NiCuZn-ferrites for the multi-layered chip inductor application were prepared by a coprecipitation method and its electromagnetic properties were analyzed. Also, the property of low temperature sintering were studied with the initial heat treatment of powder.$(Ni_{0.4-x}Cu_xZn_{0.60})_{1+w}(Fe_2O_4)_{1-w}$ (x=0.2, w=0.03) were calcined at $300^{circ}C~750^{circ}C.$ The sintered NiCuZn-ferrites at $900^{\circ}C$ showed good apparent density $4.90g/cm^3,$ and magnetic properties of initial permeability 164 and quality factor 72. As the calcination temperature increase, the grain size of NiCuZn-ferrite increased with irregular grain distribution and its magnetic properties were deteriorated.

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