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期刊论文
Constant-current Corona Charging of Teflon PFA
IEEE Transactions on Electrical Insulation Vol. 26 No.1, February 1991,-0001,():
25μm thick films of Teflon PFA were charged positively and negatively with a constant-current corona at different temperatures and subsequently discharged. The time behavior of surface potential, total current, and conduction current during constant-current and constant-voltage charging was compared. The mean charge depth was found to increase with negative constant-current and constant-voltage charging at elevated temperatures. Compared with constant-voltage charging, constant-current charging leads to a more prominent meancharge depth shift towards the back electrode and thus also to an improved charge stability in Teflon PFA, since a large amount of the deeper bulk traps is being filled.
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