TY - JOUR
T1 - Thin Film 0-3 Polymer/Piezoelectric Ceramic Composites
T2 - Piezoelectric Paints
AU - Hannert, K. A.
AU - Safari, A.
AU - Newnham, R. E.
AU - Runt, J.
N1 - Funding Information:
The authors would like to express their appreciation to the Office of Naval Research for their support of this work through contract N00014-82-K-0039a nd to Dr. Steven Pilgrim for many helpful discussions.
PY - 1989/12/1
Y1 - 1989/12/1
N2 - In this paper we summarize our investigation of the electrical properties of thin-film 0-3 polymerceramic composites. The main objective of this study was to demonstrate the principle that a piezoelectric 'paint' can indeed be prepared. Two polymers, an acrylic copolymer and a polyurethane, were utilized in our research. Both were loaded with 60-70 volume percent PZT and a coprecipitated PbTiO,. The addition of various surfactants and dispersing agents to the acrylate-based composites was necessary to aid in dispersing the ceramic particles in the polymer matrix. The hydrostatic strain and voltage coefficients, along with the 'figures of merit' for PZT-filled acrylic and polyurethane composites were found to be significantly larger than values reported previously for other 0-3 polymer-PZT composites. For acrylic copolymer-coprecipitated PbTiO, composites, the hydrostatic coefficients were found to be roughly 50% larger than the comparable PZT-filled materials. For example, g, d, ranged from about 1260-1380 x 10-15 m2/N for PZT-filled and from about 1970-2140 x 10-15 mZ/N for PbTi0,-loaded acrylic composites. The electrical properties of the PbTi0,-filled polyurethane were comparable to those of the corresponding PZT composites.
AB - In this paper we summarize our investigation of the electrical properties of thin-film 0-3 polymerceramic composites. The main objective of this study was to demonstrate the principle that a piezoelectric 'paint' can indeed be prepared. Two polymers, an acrylic copolymer and a polyurethane, were utilized in our research. Both were loaded with 60-70 volume percent PZT and a coprecipitated PbTiO,. The addition of various surfactants and dispersing agents to the acrylate-based composites was necessary to aid in dispersing the ceramic particles in the polymer matrix. The hydrostatic strain and voltage coefficients, along with the 'figures of merit' for PZT-filled acrylic and polyurethane composites were found to be significantly larger than values reported previously for other 0-3 polymer-PZT composites. For acrylic copolymer-coprecipitated PbTiO, composites, the hydrostatic coefficients were found to be roughly 50% larger than the comparable PZT-filled materials. For example, g, d, ranged from about 1260-1380 x 10-15 m2/N for PZT-filled and from about 1970-2140 x 10-15 mZ/N for PbTi0,-loaded acrylic composites. The electrical properties of the PbTi0,-filled polyurethane were comparable to those of the corresponding PZT composites.
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U2 - 10.1080/00150198908007920
DO - 10.1080/00150198908007920
M3 - Article
AN - SCOPUS:84963333785
SN - 0015-0193
VL - 100
SP - 255
EP - 260
JO - Ferroelectrics
JF - Ferroelectrics
IS - 1
ER -