Wen Qiye

Doctor of Engineering

With Certificate of Graduation for Doctorate Study

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Gender:Male
Date of Employment:2005-04-01
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Home > Scientific Research > Paper Publications

Microstructure and Electromagnetic Properties of Microwave Sintered NiCuZn plus CCTO Composites Materials for Application in LTCC Devices

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Affiliation of Author(s):[1]Univ Elect Sci & Technol China, State Key Lab Elect Thin Film & Integrated Device, Chengdu 610054, Sichuan, Peoples R China
Journal:IEEE TRANSACTIONS ON MAGNETICS
Key Words:Ferromagnetic-ferroelectric composites; microwave sintering; NiCuZn plus CCTO composites
Abstract:In this paper, microwave sintering (MS) technology has been applied in the preparation of ferromagnetic-ferroelectric composites. The Ni0.3Zn0.6Cu0.1Fe2O4(NiCuZn) + 15%(wt.)CaCu3Ti4O12(CCTO) composites have been fabricated by both MS technology and conventional sintering (CS) technology, respectively. We found that the fabricating time and sintering temperature were 22 h and 1100 degrees C for the CS process and 2 h and 900 degrees C for the MS process. Experiments show that MS treated NiCuZn-CCTO composites possess both excellent ferromagnetic and ferroelectric properties. For the composites of NiCuZn+15% CCTO, the real part of permittivity is larger than 360 when the frequency is lower than 1.2 MHz, and the real part of dielectric constant is larger than 2000 when the frequency is lower than 1.0 MHz. Our results indicate that the MS method is a potential important technique in LTCC technology.
Document Type:Article; Proceedings Paper
Volume:49
Issue:7
Page Number:4204-4206
ISSN No.:0018-9464
Translation or Not:no