Incorporation of piezoelectric Pb(Zr,Ti)O3 fibers into ceramic/polymer composites

Ahmad Safari, Victor Janas, Bahram Jadidian, Jonathan French, Greg Weitz, John Luke, Bud Cass

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

9 Scopus citations

Abstract

The processing of Pb(Zr,Ti)O 3, or PZT, fiber and fiber/polymer composites for transducer applications is discussed. Green PZT fibers, 80 to 100 μm in diameter, were formed at Advanced Cerametrics, Inc., using the Viscous Suspension Spinning Process (VSSP). In this process, fine PZT powder is intimately mixed with polymer precursor by high shear mixing. The powder and precursor mixture is spun through a spinneret into a coagulation bath to form fibers. The fibers are washed, dried, and collected on a spool. Yarns containing between 10 and 500 individual fibers were collimated by applying a polymeric sizing to the yarns, and passing the yarns through sizing dies. Yarn bundle tightness and flexibility were controlled by the sizing chemistry. Continuous green yarns were cut to short lengths, or woven in different architectures to create composites with novel microstructures. The short yarns were fired to product PZT straight rods for `pick and place' piezoelectric composites. The woven structures were heat treated and backfilled with polymer to create composites with 1-3, 2-3, and 3-3 connectivity. After heat treatment, the diameter of the individual PZT fibers was 10 to 20 μm. Electromechanical characteristics of a number of composites were determined, and will be reported. The PZT VSSP fibers can be used to form fine-scale, large area piezoelectric fiber/polymer composites for use in hydrophones, transducers for medical ultrasonic imaging and non-destructive evaluation, and as sensors and actuators in vibration and noise control.

Original languageAmerican English
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsC.Robert Crowe
Pages240-250
Number of pages11
StatePublished - 1996
EventSmart Structures and Materials 1996: Industrial and Commercial Applications of Smart Structures Technologies - San Diego, CA, USA
Duration: Feb 27 1996Feb 29 1996

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume2721

Other

OtherSmart Structures and Materials 1996: Industrial and Commercial Applications of Smart Structures Technologies
CitySan Diego, CA, USA
Period2/27/962/29/96

ASJC Scopus subject areas

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

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