Title :
In-situ acoustical monitoring of the effective-polarization hysteresis in cellular polypropylene ferroelectrets
Author :
Qiu, Xunlin ; Mellinger, Axel ; Gerhard, Reimund
Author_Institution :
Inst. of Phys. & Astron., Univ. of Potsdam, Potsdam
Abstract :
The build-up of the effective polarization in ferroelectrets under suitable charging voltage waveforms was studied by means of acoustical measurements and dielectric resonance spectroscopy. A polarization-voltage (P-V) hysteresis loop was obtained by analyzing the data in the light of an existing model for the piezoelectric d33 coefficient of ferroelectrets.
Keywords :
acoustic measurement; dielectric hysteresis; dielectric polarisation; dielectric resonance; ferroelectric materials; piezoelectricity; polymers; acoustical monitoring; cellular polypropylene ferroelectrets; charging voltage waveforms; dielectric resonance spectroscopy; effective-polarization hysteresis; piezoelectric coefficient; polarization-voltage hysteresis loop; Acoustic measurements; Data analysis; Dielectric measurements; Electrochemical impedance spectroscopy; Hysteresis; Monitoring; Optical polarization; Piezoelectric polarization; Resonance; Voltage;
Conference_Titel :
Electrets, 2008. ISE-13. 13th International Symposium on
Conference_Location :
Tokyo
Print_ISBN :
978-1-4244-1850-3
Electronic_ISBN :
978-1-4244-1851-0
DOI :
10.1109/ISE.2008.4813989
