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 language | English (US) |
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Title of host publication | IEEE International Symposium on Applications of Ferroelectrics |
Editors | B.M. Kulwicki, A. Amin, A. Safari |
Publisher | IEEE |
Pages | 547-550 |
Number of pages | 4 |
Volume | 2 |
State | Published - 1996 |
Event | Proceedings of the 1996 10th IEEE International Symposium on Applications of Ferroelectrics, ISAF. Part 1 (of 2) - East Brunswick, NJ, USA Duration: Aug 18 1996 → Aug 21 1996 |
Other
Other | Proceedings of the 1996 10th IEEE International Symposium on Applications of Ferroelectrics, ISAF. Part 1 (of 2) |
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City | East Brunswick, NJ, USA |
Period | 8/18/96 → 8/21/96 |
All Science Journal Classification (ASJC) codes
- General Engineering
- General Materials Science