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Effects of Bi2O3 addition on the microstructure and electromagnetic properties of NiCuZn ferrites

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Abstract

Effects of Bi2O3 addition on the microstructural development and magnetic properties of NiCuZn ferrites were studied. For low temperature sintering (<900 °C), 0.1–1.0 wt % of Bi2O3 was added to the NiCuZn ferrites. The grain size and bulk density gradually increased with the increase in the Bi2O3 content. Above 0.5 wt % Bi2O3, abnormal grain growth was observed. The specimen with 0.25 wt % Bi2O3 showed the highest initial permeability with good quality factors and a uniform microstructure. However, the specimen with greater than 0.5 wt % Bi2O3 demonstrated abnormal grain growth with lower initial permeabilities and poor quality factors.

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Authors and Affiliations

  1. Department of Materials Engineering, Sungkyunkwan University, Suwon, 440-746, Korea

    JailL Jeong & Young Ho Han

  2. Samsung Electromechanics Co., Ltd., Suwon, 442-743, Korea

    Byeong Cheol Moon

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  1. JailL Jeong
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  2. Young Ho Han
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  3. Byeong Cheol Moon
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Jeong, J., Han, Y.H. & Moon, B.C. Effects of Bi2O3 addition on the microstructure and electromagnetic properties of NiCuZn ferrites. Journal of Materials Science: Materials in Electronics 15, 303–306 (2004). https://doi.org/10.1023/B:JMSE.0000024230.90882.ff

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  • DOI: https://doi.org/10.1023/B:JMSE.0000024230.90882.ff

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