Title :
Ultra-fast space charge packets in nanostructured epoxy-based materials
Author :
Fabiani, D. ; Montanari, G.C. ; Siracusano, E. ; Dissado, L.A.
Author_Institution :
DIE-LIMAT, Univ. of Bologna, Bologna, Italy
Abstract :
This paper reports observations of charge packets in nanostructured epoxy flat specimens with a filler content of 3% and 5%. These packets, behaving as solitons, accumulate very quickly close to the counter electrodes as heterocharge, due to the partially-blocking effect of the specimen/electrode interfaces. The base material, on the contrary, behaves differently: no charge pulses cross the insulation, showing instead a significant homocharge build up. However applying a compression of about 300 kPa to the base material specimen allows a significant amount of heterocharge to begin to accumulate, meaning that the fast charge pulse transport mechanism described above has been incepted.
Keywords :
epoxy insulation; filled polymers; nanostructured materials; space charge; counter electrodes; fast charge pulse transport mechanism; heterocharge; homocharge; insulating polymers; insulation; nanofilled epoxy resin; nanostructured epoxy-based materials; partially-blocking effect; solitons; specimen-electrode interfaces; ultra-fast space charge packets; Charge measurement; Conducting materials; Counting circuits; Current measurement; Electrodes; Insulation; Nanostructured materials; Polymers; Solitons; Space charge;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 2009. CEIDP '09. IEEE Conference on
Conference_Location :
Virginia Beach, VA
Print_ISBN :
978-1-4244-4557-8
Electronic_ISBN :
0084-9162
DOI :
10.1109/CEIDP.2009.5377772
