TY - GEN
T1 - The breakdown threshold of dielectric barrier discharges in piezoelectric polymer foams
AU - Harris, Scott
AU - Mellinger, Olena
AU - Mellinger, Axel
PY - 2010
Y1 - 2010
N2 - The piezoelectric activity of charged cellular foams (so-called ferroelectrets) is compared against simulations based on a multi-layer electromechanical model and Townsend's model of Paschen breakdown, with the distribution of void heights determined from scanning electron micrographs. While the calculated space charge hysteresis curves are in good agreement with experimental data, the onset of piezoelectric activity is observed at significantly higher electric fields than predicted by Paschen's law. In addition, the model suggests that optimized charging should be possible by varying the gas pressure while the charging field is applied.
AB - The piezoelectric activity of charged cellular foams (so-called ferroelectrets) is compared against simulations based on a multi-layer electromechanical model and Townsend's model of Paschen breakdown, with the distribution of void heights determined from scanning electron micrographs. While the calculated space charge hysteresis curves are in good agreement with experimental data, the onset of piezoelectric activity is observed at significantly higher electric fields than predicted by Paschen's law. In addition, the model suggests that optimized charging should be possible by varying the gas pressure while the charging field is applied.
UR - http://www.scopus.com/inward/record.url?scp=79952968035&partnerID=8YFLogxK
U2 - 10.1109/CEIDP.2010.5723939
DO - 10.1109/CEIDP.2010.5723939
M3 - Conference contribution
AN - SCOPUS:79952968035
SN - 9781424494705
T3 - Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP
BT - 2010 Annual Report Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2010
T2 - 2010 Annual Report Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2010
Y2 - 17 October 2010 through 20 October 2010
ER -