Title :
Novel polymeric composites with nonlinear current-voltage characteristic
Author :
Lebedev, Sergey M. ; Gefle, Olga S. ; Strizhkov, A.E.
Author_Institution :
Tomsk Polytech. Univ., Tomsk, Russia
Abstract :
Results of study of novel polymeric composites with nonlinear current-voltage characteristic are represented in this paper. Linear low-density polyethylene and polyvinylidene fluoride were used as polymeric matrices. Powder of silicon carbide was used as nonlinear filler. The study of main properties of composites with nonlinear current-voltage characteristic is carried out by two methods such as measurement of current-voltage characteristics and dielectric spectroscopy in frequency domain. Both a nonlinearity coefficient of current-voltage characteristic and threshold value of electric field strength at which nonlinear growth of a current occurs have been evaluated.
Keywords :
composite materials; electric current measurement; electric fields; fluorine compounds; frequency-domain analysis; matrix algebra; nonlinear filters; polymer insulators; powders; silicon compounds; spectroscopy; voltage measurement; current-voltage characteristics measurement; dielectric spectroscopy; electric field strength; frequency domain analysis; linear low-density polyethylene; nonlinear current-voltage characteristic; nonlinear filler; polymeric composites; polymeric matrices; polyvinylidene fluoride; powder; silicon carbide; Admittance; Current-voltage characteristics; Electric fields; Polymers; Powders; Silicon carbide; Electric field control; Nonlinear current-voltage characteristic; Nonlinearity coefficient of current-voltagecharacteristic; Polymeric composites; Silicon carbide;
Journal_Title :
Dielectrics and Electrical Insulation, IEEE Transactions on
DOI :
10.1109/TDEI.2013.6451369
