Title :
Influence of the polarizing electrode material on the space charge storage in low density polyethylene
Author :
Cherifi, A. ; Khalil, M.S. ; Meunier, C. ; Reboul, J.P. ; Toureille, A.
Author_Institution :
Caen Univ., France
Abstract :
The influence of the polarizing electrode material on the storage of space charge in low density polyethylene (LDPE) was studied using the thermal step technique. Test samples were discs of 1.9 mm thickness provided with different types of electrodes: vacuum deposited gold and aluminium, plasma enhanced chemical vapour deposited silicon carbide (SiC), and pressed aluminium disc electrodes. Space charge was formed using 50 kV de voltage for 72 hours at two different temperatures 25°C and 50°C. Results indicate that the distribution of space charge density through the sample is dependent on the type of the electrode material, the nature of electrode/polymer interface and temperature of space charge formation
Keywords :
dielectric polarisation; electrets; polyethylene insulation; space charge; 1.9 mm; 25 to 50 C; 50 kV; 72 h; electrode/polymer interface; low density polyethylene; polarizing electrode material; space charge formation temperature; space charge storage; thermal step technique; Aluminum; Electrodes; Gold; Material storage; Plasma temperature; Polarization; Polyethylene; Silicon carbide; Space charge; Testing;
Conference_Titel :
Electrets, 1994. (ISE 8), 8th International Symposium on
Conference_Location :
Paris
Print_ISBN :
0-7803-1940-0
DOI :
10.1109/ISE.1994.514772
