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	Preparation of composite ceramics of NiFe/sub 2/O/sub 4//PZT by sol-gel method and their magnetoelectric effect
	Weihua Gong ; Ming Li ; Zhan Shi ; Haijin Deng ; Cewen Nan
	2010-05-10 ; 2010-05-10
关键词	Experimental/ ceramics composite materials lead compounds magnetic hysteresis magnetoelectric effects nickel compounds permittivity scanning electron microscopy sol-gel processing X-ray diffraction/ composite ceramics sol-gel method magnetoelectric coefficient lead-zirconate-titanate sintering solid state reaction technique X-ray diffraction XRD pattern scanning electron microscopy SEM micrograph dielectric constant piezoelectric constant magnetic hysteresis loop dc magnetic intensity 289.8 kHz NiFe/sub 2/O/sub 4/-PZT NiFe2O4-PbZrO3TiO3/ A8120N Preparation of cermets, ceramic and refractory composites A8120L Preparation of ceramics and refractories A7720 Dielectric permittivity A7560E Magnetization curves, hysteresis, Barkhausen and related effects A7580 Magnetomechanical and magnetoelectric effects, magnetostriction/ frequency 2.898E+05 Hz/ NiFe2O4PbZrO3TiO3/ss Fe2O4/ss TiO3/ss ZrO3/ss Fe2/ss O4/ss O3/ss Fe/ss Ni/ss Pb/ss Ti/ss Zr/ss O/ss
中文摘要	The precursor powder of lead-zirconate-titanate (PZT) and NiFe/sub 2/O/sub 4/ (NFO) was prepared using one step sol-gel method. The dry powders got after a series of processes were sintered via a conventional ceramic solid-state reaction technique. All the diffraction peaks in the XRD patterns of the composites can be readily indexed to NFO and PZT, respectively. The SEM micrograph shows two different phases of PZT and NFO distinctly and the particle size of NFO was about 2-4 mu m. The magnetoelectric (ME) coefficient, dielectric constant, piezoelectric constant, magnetic hysteresis loops of the samples were measured. The dc magnetic H/sub dc/ resulting in the maximum ME coefficient varies from 0.65kOe to 1.0kOe with the increase of the NFO volume fraction. The maximum magnetoelectric coefficient of 6.15 Vcm/sup -1/Oe/sup -1/ was obtained at resonance frequency of 289.8kHz, dc magnetic intensity of 0.8kOe and NFO volume fraction of 0.25.
语种	英语 ; 英语
出版者	Trans Tech Publications ; Switzerland
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/20542]
专题	清华大学
推荐引用方式 GB/T 7714	Weihua Gong,Ming Li,Zhan Shi,et al. Preparation of composite ceramics of NiFe/sub 2/O/sub 4//PZT by sol-gel method and their magnetoelectric effect[J],2010, 2010.
APA	Weihua Gong,Ming Li,Zhan Shi,Haijin Deng,&Cewen Nan.(2010).Preparation of composite ceramics of NiFe/sub 2/O/sub 4//PZT by sol-gel method and their magnetoelectric effect..
MLA	Weihua Gong,et al."Preparation of composite ceramics of NiFe/sub 2/O/sub 4//PZT by sol-gel method and their magnetoelectric effect".(2010).

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