Connectivity and piezoelectric-pyroelectric composites

Connectivity is a critical parameter in composites designed for use as piezoelectric transducers or as pyroelectric detectors. There are ten important connectivity patterns in diphasic solids, ranging from a 0-0 unconnected checkerboard pattern to a 3-3 pattern in which both phases are three dimensi...

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Bibliographic Details
Published in:Materials research bulletin 1978-01, Vol.13 (5), p.525-536
Main Authors: Newnham, R.E., Skinner, D.P., Cross, L.E.
Format: Article
Language:English
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Summary:Connectivity is a critical parameter in composites designed for use as piezoelectric transducers or as pyroelectric detectors. There are ten important connectivity patterns in diphasic solids, ranging from a 0-0 unconnected checkerboard pattern to a 3-3 pattern in which both phases are three dimensionally self-connected. Processing methods for manufacturing some of these patterns are described. Series and parallel models for composite piezoelectrics and pyroelectrics lead to several interesting results, such as a diphasic pyroelectric in which neither phase is pyroelectric. The models are also helpful in interpreting the structure-property relations in single-phase materials where the crystal structures mimic certain connectivity patterns.
ISSN:0025-5408
1873-4227
DOI:10.1016/0025-5408(78)90161-7