Electroactive and Magnetoactive Materials
This chapter discusses several active materials types: piezoelectric ceramics, electrostrictive ceramics, piezoelectric polymers, and magnetostrictive compounds. Various formulations of these materials are commercially available: PZT (a piezoelectric ceramic), PMN (an electrostrictive ceramic), Terfenol-D (a magnetostrictive compound), and PVDF (a piezoelectric polymer). The chapter treats each material type separately, presents the salient features, and introduces the modeling equations. The chapter also gives a general perspective on piezoelectricity and ferroelectric ceramics, explaining some of the physical behavior underpinning their salient features, especially in relation to perovskite ...
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