Preparation and Characterization of High Temperature Perovskite Ferroelectrics in the Solid-Solution (1-<i>x</i>)BiScO₃–<i>x</i>PbTiO₃

2002/04/15 by Richard E. Eitel, Clive A. Randall, Thomas R. Shrout +1 · 11 citations
Materials Science · Engineering · #Ferroelectric and Piezoelectric Materials #Railway Engineering and Dynamics #Dielectric materials and actuators

paper · doi:10.1143/jjap.41.2099

Abstract

The dielectric and piezoelectric properties of the new perovskite solid solution system (1 - x)BiScO3-xPbTiO(3) were investigated. This system is representative of a new group of high temperature piezoelectrics that includes Bi(Me)O-3-PbTiO3, where Me+3 is a relatively large cation, Sc, Y, Yb, In. etc., and combinations thereof. In the (1 - x)BiScO3-xPbTiO(3) series, perovskite stability was achieved for x &gt; 50 mol% PbTiO3 being ferroelectric rhombohedral and transforming to ferroelectric tetragonal in the region x = 64 mol% PbTiO3, designated as the morphotropic phase boundary (MPB). Analogous to (1 - x)PbZrO3-xPbTiO(3) (PZT), the dielectric and piezoelectric properties were enhanced for compositions near the MPB. Piezoelectric coefficient d(33) values reached 450 pC/N, comparable to soft PZT's with a transition temperature of 450degreesC. more than 100degreesC higher than commercial PZT. The combination of high Tc and excellent piezoelectric activity make (1 - x)BiScO3-xPbTiO(3) materials candidates for high temperature, and temperature stable actuators and transducers.

Citations

• New High Temperature Morphotropic Phase Boundary Piezoelectrics Based on Bi(Me)O₃–PbTiO₃ Ceramics

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• High Temperature Ultrasonic Transducers: A Review. [europepmc]
• Preparation, Structure, and Electrical Properties of Cobalt-Modified Bi(Sc 3/4 In 1/4 )O 3 -PbTiO 3 -Pb(Mg 1/3 Nb 2/3 )O 3 High-Temperature Piezoelectric Ceramics. [europepmc]
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• Electrical properties of Sb 2 O 3 -modified BiScO 3 -PbTiO 3 -based piezoelectric ceramics. [europepmc]
• Investigation of Dielectric, Ferroelectric, and Strain Responses of (1 - x )[0.90(Bi 0.5 Na 0.5 )TiO 3 - 0.10SrTiO 3 ] - x CuO Ceramics. [europepmc]
• Hydrothermal Synthesis, Phase Analysis, and Magneto-Electronic Characterizations of Lead-Free Ferroelectric BM 2+ (Zn, Ca, Mg)T-BFO System. [europepmc]

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