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Displacement Properties of Newly Developed 3-dimensional Piezoelectric Actuator at Various Ac Frequencies

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© Korean Powder Metallurgy Institute 1202

2006 POWDER METALLURGY World Congress

PC11-W-03

Displacement Properties of Newly Developed 3-dimensional Piezoelectric Actuator

at Various Ac Frequencies

Yong-Gil Choi1, Soon-Chul Ur 1 and Man-Soon Yoon1 1

Department of Materials Science and Engineering/Research Center for Sustainable ECo-Devices and Materials (ReSEM), Chungju National University, Chungju, Chungbuk 380-702, Korea

msyoon@chungju.ac.kr

Abstract

The electromechanical displacement properties of the newly developed 3-dimensional piezoelectric actuator has been measured and analyzed at various AC frequencies. The actuator evaluated in this investigation is fabricated from powder injection molding method using 0.03Pb(Sb0.5Nb0.5)O3-0.03Pb(Mn1/3Nb2/3)O3-(0.94-x)PbTiO3-xPbZrO3 composition. The

3-dimensional piezoelectric actuator is found to exhibit higher displacement properties than comparable multi layer piezoelectric actuators, which are considered to associate with geometrical factors. Finite element modeling was used to analyze the strains and vibration modes. This model yielded strains which were in good agreement with experimental data.

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