Open AccessTHE STUDY OF CURVES OF THE TRANSIENT CURRENT IN POLYTETRAFLUOROETHYLENE BY MEANS OF FOURIER ANALYSIS
Author(s) -
К. М. Турдыбеков
Publication year - 2021
Publication title -
eurasian physical technical journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.194
H-Index - 2
eISSN - 2413-2179
pISSN - 1811-1165
DOI - 10.31489/2021no1/75-79
Subject(s) - polytetrafluoroethylene , dielectric , materials science , fourier transform , permittivity , irradiation , polarization (electrochemistry) , radiation , activation energy , optics , composite material , chemistry , optoelectronics , physics , organic chemistry , quantum mechanics , nuclear physics
Experimental transition current curves for polytetrafluoroethylene after exposure to high-energy ionizing radiation are obtained. The transient current curves in irradiated polytetrafluoroethylene are analyzed based on the discrete Fourier transform. It is shown that there is an intense maximum of dielectric absorption in the infralow frequency region. This maximum is characterized by abnormally large values of the dielectric increment, permittivity, and the dielectric loss factor. It is concluded that the volume polarization of the irradiated polytetrafluoroethylene is uniform. The polarization observed in this frequency range is associated with the activation of migration of trapped charge carriers within microscopic regions.