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Domain switching in polycrystalline ferroelectric ceramics
Nature Materials, 2005Ferroelectric ceramics are widely used as sensors and actuators for their electro-mechanical properties, and in electronic applications for their dielectric properties. Domain switching--the phenomenon wherein the ferroelectric material changes from one spontaneously polarized state to another under electrical or mechanical loads--is an important ...
Ersan Üstündag +4 more
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ACS Applied Electronic Materials, 2019
By modification of the heat-treatment process to avoid the intermediate temperature range where secondary phases are easily formed in BiFeO3, piezoelectric properties were improved; the direct piezoelectric sensor coefficient d33 increased from 240 to ...
Myang Hwan Lee +6 more
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By modification of the heat-treatment process to avoid the intermediate temperature range where secondary phases are easily formed in BiFeO3, piezoelectric properties were improved; the direct piezoelectric sensor coefficient d33 increased from 240 to ...
Myang Hwan Lee +6 more
semanticscholar +1 more source
Domain structure of ferroelectric ceramics
Ceramics International, 2000Abstract PZT ceramics were statically and dynamically evaluated to examine the relationship between domain structures and electrical properties. We investigated the domain structures of tetragonal, M.P.B. and rhombohedral PZT ceramics at various poling fields to measure the poling field dependence of the crystal orientations and electrical properties
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The dielectric constants of a ferroelectric ceramic
Ferroelectrics, 1973The problem of estimating the dielectric constants of a ferroelectric ceramic from those of the single crystal is tackled theoretically. It is pointed out that conventional formulae, such as those that average the dielectric constant or its inverse, presuppose particular microscopic geometries and lead to great inaccuracies in the case of ...
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Piezoelectric effects in ferroelectric ceramics
IEEE Spectrum, 1970Ferroelectric ceramics exhibit piezoelectric effects and optical birefringence that are electrically controllable. Consequently, these ceramics are applicable to a wide variety of devices. An article in the February issue has already described electrically actuated light valves and electrically controlled optical filters. The present article deals with
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Transparent Ferroelectric Glass-Ceramics
Ferroelectrics, 2004In recent years, there has been a resurgence of interest in transparent ferroelectric glass-ceramics (TFGCs), which are a special class of glass-ceramic composites that combine the low cost of fabrication and forming of transparent glass with the superior nonlinear optical and electro-optical properties of ferroelectric crystals.
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Stress Effects in Ferroelectric Ceramics
1979Electromechanical transducers made of ferroelectric ceramic materials such as those based on barium titanate (BT) or on various lead zirconate titanate (PZT) compositions have become widely used for a variety of applications over the past 25 years [1].
I. J. Fritz, J. D. Keck
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