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Co-Firing Behavior of Co2Z Hexagonal Ferrite/Ag Internal Electrode for MLCIs

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Abstract:

This paper presents the shrinkage behavior, phase transformation and interfacial character of the hexagonal ferrite/silver electrode composite. The shrinkage analysis shows apparent sintering mismatch between hexagonal ferrite ceramic and silver electrode material and improvement of the co-fired characteristics was obtained by adding appropriate amount of sintering additive. Scanning electron microscopy observations indicate that silver grains distribute uniformly in the composite. Drawn from the back-scattered (BS) electron image, no silver dispersed into the ferrite grains and there’re no obvious chemical reactions between Co2Z hexagonal ferrite and silver, which can be confirmed by X-ray diffraction spectrum. Silver induction exerts remarkable effect on the electronic properties of the composite and could increase the dielectric constant and dielectric loss to a certain extent.

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Periodical:

Key Engineering Materials (Volumes 280-283)

Pages:

155-158

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.280-283.155

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Online since:

February 2007

Authors:

Chun Lin Miao, Mao Wang, Zhen Xing Yue, Ji Zhou, Xue Min Cui

Keywords:

CO2Z, Ferrite, Interface, MLCI

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© 2005 Trans Tech Publications Ltd. All Rights Reserved

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