Title :
Investigation of dielectric breakdown of polyvinylidene fluoride using AC and DC methods
Author :
Jow, T. Richard ; Cygan, P.J.
Author_Institution :
US Army Electron. Technol. & Devices Lab., Fort Monmouth, NJ, USA
Abstract :
The dielectric breakdown strength of polyvinylidene fluoride (PVDF) has been investigated using both AC and DC methods. The DC breakdown strength of PVDF was in the range of 720 to 770 MV/m, which was as good as or better than that of capacitor grade polypropylene film. The AC breakdown strength of PVDF was 220 to 233 MV/m. The AC-to-DC ratio of breakdown strengths for PVDF was significantly lower than that for other polymers. This observation is discussed in terms of the specific dielectric properties of PVDF, namely, its ferroelectricity
Keywords :
electric breakdown of solids; electric strength; electromechanical effects; ferroelectric materials; organic insulating materials; permittivity; polymer films; AC breakdown strength; AC method; DC breakdown strength; DC methods; PVDF; dielectric breakdown strength; dielectric constant; electromechanical effects; ferroelectricity; polymer film; polymers; polyvinylidene fluoride; Dielectric breakdown; Dielectric constant; Dielectric materials; Electric breakdown; Electrostatics; Ferroelectric films; Polymer films; Semiconductor films; Testing; Voltage;
Conference_Titel :
Electrical Insulation, Conference Record of the 1992 IEEE International Symposium on
Conference_Location :
Baltimore, MD
Print_ISBN :
0-7803-0649-X
DOI :
10.1109/ELINSL.1992.247024
