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18 May 2006 Theoretical modeling for an electroactive polymer-ceramic-based micro hybrid actuation system
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A new configuration of an electroactive polymer, ceramic-based micro hybrid actuation system (μHYBAS) is proposed in this paper. The μHYBAS is a device concept to utilize different electroactive materials in a cooperative and efficient method for optimized electromechanical performance. A theoretical model has been developed, based on the elastic and electromechanical properties of the materials and on the configuration of the device. The μHYBASs investigated use piezoelectric polyvinylidene fluoride (PVDF) as the electroactive polymer (EAP) element combined with the electroactive ceramic (EAC) elements, which are piezoelectric hard lead zirconate titanate (PZT), soft PZT, or Pb(Zn1/3Nb2/3)O3-4.5%PbTiO3 single crystal (PZN-PT single crystal). The μHYBAS demonstrates significantly enhanced electromechanical performance by utilizing advantages of synergistic contributions of the electromechanical responses of an electroactive polymer and an electroactive ceramic. The modeled results provide guidelines for future developments of high performance μHYBASs to meet various applications.
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Tian-Bing Xu and Ji Su "Theoretical modeling for an electroactive polymer-ceramic-based micro hybrid actuation system", Proc. SPIE 6223, Micro (MEMS) and Nanotechnologies for Space Applications, 62230R (18 May 2006);

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