Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/36005
Title: LPF-doped core-shell structure based CFO/PLZT 0-3 magnetoelectric composite ceramics
Authors: Shi, DL
Lam, KH 
Li, K
Keywords: Multiferroic composites
Co-fired ceramics
Piezoelectric properties
Core-shell structure
Magnetoelectric (ME) effect
Issue Date: 2014
Publisher: Elsevier
Source: Journal of alloys and compounds, 2014, v. 617, p. 485-490 How to cite?
Journal: Journal of alloys and compounds 
Abstract: Using LiF and PbF2 (mole ratio 1:1, LPF) as sintering additives, the xCoFe(2)O(4)/(1 - x) Pb0.9025La0.065(Zr-0.58-Ti-0.42)(0.975)Nb0.02O3 [x = 0.1, 0.2, 0.3, and 0.4 in weight] (abbreviate as CFO/PLZT) 0-3 magnetoelectric (ME) composite ceramics were developed via a liquid phase sintering technique. A ZrO2 layer was coated on the CFO particles via a sol-gel method in order to inhibit the diffusion of Fe3+ and Co2+ ions from the ferrite CFO phase to the ferroelectric PLZT phase. With using 6 wt% additives of LPF, dense composite ceramics can be obtained in a sintering temperature region of 1000-1150 degrees C for 30 mm. Moreover, overall performance of the ceramics with relatively low CFO content (x = 0.2) has been optimized. The effects of CFO content and sintering temperature on micromorphology, crystalline structure, piezoelectric, dielectric, and ME properties were investigated. It was found that the 0.2CFO/0.8PLZT composite ceramics exhibited a d(33) of 80 pC/N and a ME coefficient of 102 mV/Oe cm at 215 kHz.
URI: http://hdl.handle.net/10397/36005
ISSN: 0925-8388
DOI: 10.1016/j.jallcom.2014.08.016
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