Preparation and characterization of lead-free (K0.47Na0.51Li0.02)(Nb0.8Ta0.2)O3 piezoceramic/epoxy composites with 0–3 connectivity

Preparation and characterization of lead-free (K0.47Na0.51Li0.02)(Nb0.8Ta0.2)O3 piezoceramic/epoxy composites with 0–3 connectivity

Lead-free (K0.47Na0.51Li0.02)(Nb0.8Ta0.2)O3 (KNLNT) piezoceramic/epoxy composites with 0-3 connectivity were prepared by cold-pressing. The dielectric and piezoelectric properties of the composites were examined as a function of the mean particle size (D) within the range 27-174 micron at a fixed ce...

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Veröffentlicht in:Ceramics international 2012-01, Vol.38, p.S259-S259
Hauptverfasser: Le, D T, Do, N B, Kim, D U, Hong, I, Kim, I-W, Lee, J S
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Sprache:eng
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Ceramics
Dielectric constant
Dielectric properties
Particle size
Piezoelectric ceramics
Piezoelectricity
Polymer matrix composites
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Do, N B
Kim, D U
Hong, I
Kim, I-W
Lee, J S
description Lead-free (K0.47Na0.51Li0.02)(Nb0.8Ta0.2)O3 (KNLNT) piezoceramic/epoxy composites with 0-3 connectivity were prepared by cold-pressing. The dielectric and piezoelectric properties of the composites were examined as a function of the mean particle size (D) within the range 27-174 micron at a fixed ceramic content of 85 vol%. The dielectric constant increased with D by the combined effects of increased connectivity and decreased surface-to-volume ratio of the ceramics. When D = 125 micron, the piezoelectric constant showed the highest value of 44 pC/N that was greater than that of previously reported lead-free piezoelectric 0-3 ceramic/polymer composites.
doi_str_mv 10.1016/j.ceramint.2011.04.096
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subjects Ceramics
Dielectric constant
Dielectric properties
Particle size
Piezoelectric ceramics
Piezoelectricity
Polymer matrix composites
title Preparation and characterization of lead-free (K0.47Na0.51Li0.02)(Nb0.8Ta0.2)O3 piezoceramic/epoxy composites with 0–3 connectivity
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