Some dielectric, ferroelectric, piezoelectric properties of 0.35Pb(Zn1/3Nb2/3)O3-0.65Pb(ZrxTi1-x)]O3 ceramics

0.35Pb(Zn1/3Nb2/3)O3-0.65Pb(ZrxTi1-x)]O3 ceramics, where x=0.43-0.53 (Zr/Ti ratio: 43/57-53/47, respectively), have been prepared by conventional method. The effect of the Zr/Ti ratio on the structure and dielectric, ferroelectric, piezoelectric properties of the ceramics have been investigated. Exp...

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Veröffentlicht in:	Journal of alloys and compounds 2008-01, Vol.449 (1-2), p.24-27
Hauptverfasser:	Gio, Phan Dinh, Dan, Vo Duy
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: electronic structure, electrical, magnetic, and optical properties Dielectric properties of solids and liquids Dielectrics, piezoelectrics, and ferroelectrics and their properties Exact sciences and technology Ferroelectricity and antiferroelectricity Permittivity (dielectric function) Physics Piezoelectricity and electromechanical effects
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Zusammenfassung:	0.35Pb(Zn1/3Nb2/3)O3-0.65Pb(ZrxTi1-x)]O3 ceramics, where x=0.43-0.53 (Zr/Ti ratio: 43/57-53/47, respectively), have been prepared by conventional method. The effect of the Zr/Ti ratio on the structure and dielectric, ferroelectric, piezoelectric properties of the ceramics have been investigated. Experimental results indicated that with x=0.47 (Zr/Ti=47/53), the structure of the ceramics is pure perovskite, and optimal properties of ceramics were obtained. Dielectric constant at 1kHz at room temperature was 1600, the electromechanical coupling factor kp and piezoelectric coefficient d31 showed the peak value 0.60 and 151X10-12C/N, respectively. The remanent polarization Pr and the coercive field EC were 24.48muC/cm2 and 5.35kV/cm, respectively.
ISSN:	0925-8388 1873-4669
DOI:	10.1016/j.jallcom.2006.02.116