Multilayer electromechanical composites with controlled piezelectric coefficient distribution

James S. Vartuli, David L. Milius, Xiaoping Li, Wan Y. Shih, Wei Heng Shih, Robert Krafft Prud'homme, Ilhan A. Aksay

Research output: Chapter in Book/Report/Conference proceedingConference contribution


We have fabricated multilayer electromechanical composites with controlled piezoelectric coefficient distributions using tape casting. Tapes of doped lead zirconate titanate were cut and stacked in accordance with their characteristic electromechanical coupling values and modulus of elasticity. This technique is an extremely versatile method to fabricate displacement actuators to fabricate monolithic ceramic parts with controlled material property gradients. To obtain a quantifiable method to optimize this type of transducer, we have devised a processing model. Given the functional distribution of the electromechanical coupling coefficient, d31, and the functional distribution of elastic modulus through the thickness of the transducer, the analysis predicts the displacement as a function of loading. The tape casting method coupled with the model provides an actuator that maximizes displacement and generated force for the given material properties.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSociety of Photo-Optical Instrumentation Engineers
Number of pages6
ISBN (Print)0819424536
StatePublished - Dec 1 1997
EventSmart Structures and Materials 1997: Smart Materials Technologies - San Diego, CA, USA
Duration: Mar 3 1997Mar 4 1997


OtherSmart Structures and Materials 1997: Smart Materials Technologies
CitySan Diego, CA, USA

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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