SmartPIE researchers improve piezoelectric composite properties

 Recently, SmartPIE researchers developed high performance piezoelectric composite materials comprising of the piezoelectric Lead Zirconate Titanate (PZT) powder and a liquid crystalline thermosetting matrix polymer (LCT). The matrix polymer is a liquid crystalline polymer comprising of an HBA-HNA backbone with phenylethynyl end-groups, and is extremely temperature resistant. The use of a high performance polymer makes the composite a possible candidate to be used in sensor applications at elevated temperatures. The composite properties were optimised by calcining (heat treating) the PZT powder at different temperatures, prior to mixing the powders into the polymer matrix. It was found that a relationship exists between the calcining temperature of the PZT powder and the piezoelectric properties of the composites. The results were published in Journal of Electroceramics

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