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Electromechanical Behavior of PZTBrass Unimorphs Xiaoping Li,*,
 

Summary: Electromechanical Behavior of PZT­Brass Unimorphs
Xiaoping Li,*,
Wan Y. Shih,*,,
Ilhan A. Aksay,*,
and Wei-Heng Shih*,
Department of Materials Engineering, Drexel University, Philadelphia, Pennsylvania 19104-2875; and
Department of Chemical Engineering and Princeton Materials Institute, Princeton University,
Princeton, New Jersey 08544-5263
We have examined the static and dynamic electromechani-
cal responses of PZT­brass (piezoelectric­nonpiezoelectric)
plate unimorphs of various brass/PZT thickness ratios. The
study was performed both experimentally and theoretical-
ly. The static measurements showed that, given a PZT layer
thickness, there exists a brass/PZT thickness ratio that
gives the unimorph the highest static displacement under
an applied field. The effects of geometric shape and exter-
nal loading on the displacement of the unimorphs were also
examined. The dynamic measurements showed that, given
a PZT layer thickness, the bending-mode resonance fre-
quencies increase with an increasing brass/PZT thick-

  

Source: Aksay, Ilhan A. - Department of Chemical Engineering, Princeton University

 

Collections: Materials Science