article·2000-01-01

Piezoelectric Properties of PMN-PT Ceramics Near Morphotropic Phase Boundary

Xin Chen

Abstract

(1 - x)Pb(Mg_1/3Nb_2/3)O_3-xPbTiO_3 (PMN-PT) ceramics with x near morphotropicphase boundary (x=0.25~0.40) were prepared by Columbite technique. The influences of PT content and preparation process on dielectric, ferroelectric and piezoelectric properties were studied.The results show that ceramics with x between 0.32 and 0.35 possess higher dielectric constant,piezoelectric constant, coupling factor and lower mechanical figure of merite. The properties arecomparable to best soft PZT ceramics.
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Research context

OpenAlex topics: Ferroelectric and Piezoelectric Materials · Acoustic Wave Resonator Technologies · Thermoelastic and Magnetoelastic Phenomena

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