Novel Processing of 1-3 Piezoelectric Ceramic/Polymer Composites for Transducer Applications

Piezoelectric ceramic/polymer composites with 1‐3 connectivity were made by weaving sized lead zirconate titanate (PZT) fiber bundles through a honeycomb support. Bundles comprised of fine‐scale, 20‐50 μm green fibers, made using the viscous suspension spinning process, were sized to increase their...

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Bibliographic Details
Published in:Journal of the American Ceramic Society 1995-11, Vol.78 (11), p.2913-2916
Main Authors: McNulty, Thomas F., Janas, Victor F., Safari, Ahmad, Loh, Roland L., Cass, Richard B.
Format: Article
Language:English
Subjects:
Applied sciences
Composites
Exact sciences and technology
Forms of application and semi-finished materials
Polymer industry, paints, wood
Technology of polymers
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Summary:Piezoelectric ceramic/polymer composites with 1‐3 connectivity were made by weaving sized lead zirconate titanate (PZT) fiber bundles through a honeycomb support. Bundles comprised of fine‐scale, 20‐50 μm green fibers, made using the viscous suspension spinning process, were sized to increase their manageability. The sizing step comprised of soaking the green PZT fiber bundles in an aqueous solution of poly(vinyl alcohol), then pulling the wet fibers through a steel sizing die. Sizing resulted in dense and flexible fiber bundles, which facilitated composite construction and led to composites with increased volume fractons. Sintering, polymer embedding, and machining produced a composite exhibiting 1‐3 connectivity. Composites with 10 vol% PZT yilded d33 values of 230 pC/N and a dielectric constant of 130.
ISSN:0002-7820
1551-2916
DOI:10.1111/j.1151-2916.1995.tb09063.x