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Control of shrinkage on the behavior of co-firing of ferrite and varistor multi-layers composite with organic content

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Abstract

When make multi-layer ceramics device such as EMI filter, there are a lot of process problems. Specially, crack, camber and delamination should be controlled surely by different sinter shrinkage rate of interface of two materials. The purpose of this work was to co-fire defect-free ferrite/varistor ceramic multi-layers fabricated via a calcination temperature and organic vehicle contents of ferrite. Sintering shrinkage of both calcined ferrite and varistor materials were measured using dilatometer. X-ray diffraction analysis indicated that no significant phase change occurred in the materials under investigation as a result of the sintering process. Crack and delamination of each interface were observed by scanning electron microscopy and optical microscope. We obtained the defect-free and co-fired ferrite/varistor ceramic multi-layer by controlling calcinations temperature.

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Authors and Affiliations

  1. Korea Institute of Ceramic Engineering and Technology, Seoul, 153-801, Korea

    Ik Hyun Han, Young Hyun Lee, Seong Jae Myoung, Myoung Pyo Chun, Jeong Ho Cho & Byung Ik Kim

  2. Department of Materials Science and Engineering, Hanyang University, Seoul, 133-791, Korea

    Ik Hyun Han, Young Hyun Lee & Duck Kyun Choi

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  1. Ik Hyun Han
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  2. Young Hyun Lee
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  3. Seong Jae Myoung
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  4. Myoung Pyo Chun
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  5. Jeong Ho Cho
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  6. Byung Ik Kim
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  7. Duck Kyun Choi
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Correspondence to Ik Hyun Han.

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Han, I.H., Lee, Y.H., Myoung, S.J. et al. Control of shrinkage on the behavior of co-firing of ferrite and varistor multi-layers composite with organic content. J Electroceram 23, 559–563 (2009). https://doi.org/10.1007/s10832-008-9543-x

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  • DOI: https://doi.org/10.1007/s10832-008-9543-x

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