| Mixed connectivity composite material characterization for electroactive sensors.: An article from: Polymer Engineering and Science |  | Authors: M.p. Wenger, D.k. Das-gupta
Publisher: Society of Plastics Engineers, Inc.
Category: Book
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Pages: 19
Publication Date: July 1, 1999
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This digital document is an article from Polymer Engineering and Science, published by Society of Plastics Engineers, Inc. on July 1, 1999. The length of the article is 5446 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.
From the author: Electroactive composites consisting of a ferroelectric ceramic in a polymer matrix have gained much interest as compliant electromechanical or pyroelectric sensors. Of the various theoretical models developed to understand the dielectric and electroactive properties of composites, the majority are based on a cube of unit dimensions representing the matrix with fractional inclusions representing the ceramic. Composite properties are dictated by the choice of constituent materials along with the intra- and inter-connectivity of the separate phases. A ceramic powder randomly dispersed in a polymer matrix is referred to as having 0-3 connectivity, i.e. the ceramic phase possesses no intra-connectivity throughout the composite in the x, y, and z directions, whereas the polymer possesses full intra-connectivity in these directions. For thin composite films, where the ceramic grain size is comparable to the film thickness, or for composites with high ceramic volume content, the degree of ceramic connectivity throughout the composite thickness will be enhanced over thick or low ceramic content composites, thus implying an amount of 1-3 connectivity within the composite. In order to investigate the properties of such composites, a cube model has been applied that deals with mixed 0-3 and 1-3 connectivity composites. This paper reports on the experimental and theoretical characterization of two different mixed connectivity composites, one with a polar polymer matrix and another with a nonpolar matrix.
Citation Details
Title: Mixed connectivity composite material characterization for electroactive sensors.
Author: M.P. Wenger
Publication: Polymer Engineering and Science (Refereed)
Date: July 1, 1999
Publisher: Society of Plastics Engineers, Inc.
Volume: 39 Issue: 7 Page: 1176(1)
Distributed by Thomson Gale
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