Title :
Space charge measurements on filled epoxy
Author :
Hole, S. ; Sylvestre, A. ; Guillermin, C. ; Rain, P. ; Rowe, S.
Author_Institution :
Lab. des Instrum. et Syst., Univ. Pierre et Marie Curie, Paris, France
Abstract :
The effects fillers can have on the space charge measurement are discussed. A review of the influence of particle piezoelectricity, permittivity, electrostrictivity and expansivity, on the space charge signal is presented. A silica filled epoxy resin is analysed using the light-induced-pressure-pulse (LIPP) method. A spurious signal is measured and is shown to be due to the piezoelectric effect of the silica filler particles. Finally, space charges are detected at the epoxy/silica interfaces, after poling for 2 hours at 10 kV/mm.
Keywords :
charge measurement; dielectric polarisation; epoxy insulators; filled polymers; permittivity; piezoelectricity; space charge; 2 hour; electrostrictivity; epoxy/silica interfaces; expansivity; fillers; light-induced-pressure-pulse (LIPP) method; particle piezoelectricity; permittivity; piezoelectric effect; poling; silica filled epoxy resin; space charge measurement; space charge signal; Charge measurement; Current measurement; Electrostriction; Epoxy resins; Particle measurements; Permittivity measurement; Piezoelectric effect; Piezoelectricity; Silicon compounds; Space charge;
Conference_Titel :
Solid Dielectrics, 2004. ICSD 2004. Proceedings of the 2004 IEEE International Conference on
Print_ISBN :
0-7803-8348-6
DOI :
10.1109/ICSD.2004.1350313
