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Novel Processing of 1‐3 Piezoelectric Ceramic/Polymer Composites for Transducer Applications
Author(s) -
McNulty Thomas F.,
Janas Victor F.,
Safari Ahmad,
Loh Roland L.,
Cass Richard B.
Publication year - 1995
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1995.tb09063.x
Subject(s) - materials science , composite material , lead zirconate titanate , ceramic , composite number , sizing , piezoelectricity , fiber , dielectric , polymer , spinning , ferroelectricity , art , visual arts , optoelectronics
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 d 33 values of 230 pC/N and a dielectric constant of 130.