Development of ultra-fine scale piezoelectric fibers for use in high frequency 1-3 transducers

Richard Joseph Meyer, Jr., Thomas R. Shrout, S. Yoshikawa

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

20 Scopus citations

Abstract

Lanthanum substituted lead zirconate titanate (PLZT) fine scale piezoelectric fibers (<60 μm) were fabricated for use in high frequency ultrasonic imaging transducers. Single fiber filaments, ranging from 10 to 60 μm in diameter, were produced in a continuous fashion using metal alkoxide sol-gel technology. Microstructural and electrical characteristics of these fibers were determined under different pyrolysis conditions to obtain crack free, dense fibers. Final grain sizes were 1-1.5 microns at sintering temperatures of 1200 °C for 30 minutes. Permittivities for PLZT fibers improved to 1200 by using CO, H2O and N2 atmospheres during pyrolysis to control organic burnout. PLZT compositions were incorporated into 1-3 type fiber/polymer composites. Preliminary data on 1-3 composites made using these fibers confirm single fiber dielectric constant determinations and have ceramic volume fractions up to 40%.

Original languageEnglish (US)
Title of host publicationIEEE International Symposium on Applications of Ferroelectrics
EditorsB.M. Kulwicki, A. Amin, A. Safari
PublisherIEEE
Pages547-550
Number of pages4
Volume2
StatePublished - 1996
EventProceedings of the 1996 10th IEEE International Symposium on Applications of Ferroelectrics, ISAF. Part 1 (of 2) - East Brunswick, NJ, USA
Duration: Aug 18 1996Aug 21 1996

Other

OtherProceedings of the 1996 10th IEEE International Symposium on Applications of Ferroelectrics, ISAF. Part 1 (of 2)
CityEast Brunswick, NJ, USA
Period8/18/968/21/96

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Materials Science(all)

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