Affiliation of Author(s):[1] State Key Laboratory of Electronic Thin Film and Integrated Devices, University of Electronic Science and Technology of China, Chendu 610054, Sichuan, China
Journal:IEEE Transactions on Magnetics
Key Words:Copper compounds - Sintering - Calcium compounds - Ferromagnetic materials - Nickel compounds - Zinc compounds - Ferroelectricity - Iron compounds - Titanium compounds - Microwave heating - Microwaves
Abstract:In this paper, microwave sintering (MS) technology has been applied in the preparation of ferromagnetic-ferroelectric composites. The Ni 0.3Zn0.6Cu0.1Fe2O 4(NiCuZn})+15%(wt}.)CaCu3Ti4O 12(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°C for the CS process and 2 h and 900°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. ? 2013 IEEE.
Document Type:Journal article (JA)
Volume:49
Issue:7
Page Number:4204-4206
ISSN No.:00189464
Translation or Not:no