Advanced processing of lead titanate-polyimide composites for high temperature piezoelectric sensing
conference paper
High performance polymer-ceramic composites are presented as promising candidates for high temperature piezoelectric sensing applications. lead-titanate (PT) ceramic particulate is incorporated into a polyetherimide polymer matrix, (PEI) at a specific volume fraction of 20% in the forms of 0-3 and quasi 1-3. A conventional dielectrophoretic structuring is used to induce chain like particle configuration, followed by curing the matrix to form free standing films. Poling process is perfomed at temperatures above the Tg of the partially imidized matrix and under high voltages subsequently. Free standing composites are imidized at 200 °C and 300 °C to form fully imidized films. The poled particulate composites tend to retain the original piezoelectric properties upon fully imidization. The structured composites show enhanced dielectric and piezoelectric properties compared to 0-3 composites. cop. 2015 IEEE.
TNO Identifier
529819
ISBN
9781479999743
Publisher
Institute of Electrical and Electronics Engineers Inc.
Article nr.
7172722
Source title
2015 Joint IEEE International Symposium on the Applications of Ferroelectric, International Symposium on Integrated Functionalities and Piezoelectric Force Microscopy Workshop, ISAF/ISIF/PFM 2015
Pages
265-267
Files
To receive the publication files, please send an e-mail request to TNO Repository.