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Review | Open Access

Low-fired Y-type hexagonal ferrite for hyper frequency applications

Yang BAIa,*( ), Wenjie ZHANGa, Lijie QIAOa, Ji ZHOUb
Key Laboratory of Environmental Fracture (Ministry of Education), University of Science and Technology Beijing, Beijing 100083, China
State Key Lab of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
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Abstract

Y-type hexagonal ferrite with planar magnetocrystalline anisotropy has ultrahigh cut-off frequency up to GHz and excellent magnetic properties in hyper frequency range, so that is regarded as the most suitable material in correpongding inductive devices and components. The technology of low temperature cofired ceramics for surface-mounted multilayer chip components needs ferrite to be sintered well under 900 ℃ to avoid the melting and diffusion of Ag inner electrode during the cofiring process. To lower the sintering temperature of Y-type hexagonal ferrite, there are several methods, (1) using nano-sized starting powders, (2) substitution by low-melting elements, (3) adding sintering additives, and (4) introducing lattice defect. In this paper, the effects of different methods on the sintering behavior and the magnetic properties were discussed in detail.

Keywords

hexagonal ferritemagnetic materiallow temperature cofiring ceramics

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Journal of Advanced Ceramics
Volume 1 Issue 2,
June 2012
Pages 100-109
DOI: 10.1007/s40145-012-0015-z
Cite this article:
BAI Y, ZHANG W, QIAO L, et al. Low-fired Y-type hexagonal ferrite for hyper frequency applications. Journal of Advanced Ceramics, 2012, 1(2): 100-109. https://doi.org/10.1007/s40145-012-0015-z

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Received: 03 June 2012
Accepted: 12 July 2012
Published: 08 September 2012
© The author(s) 2012

This article is published with open access at Springerlink.com
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