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This study deals with the polarization and depolarization currents of linear/nonlinear double-layered composites, and sets out to explore interface polarization and depolarization characteristics. The linear layer is pure low density polyethylene (LDPE) matrix. The nonlinear barrier layer is prepared by adding nanofillers (ZnO and SiC) to LDPE with different concentrations. Experimental results show...
The transient characteristics of the interface charges and the electric fields in the nonlinear/linear and nonlinear/nonlinear dielectrics under different amplitudes of dc step voltages and polarity reversal voltages are simulated using the software of Matlab-Simulink. The simulation results show that the interface charges and electric fields of the double-layered dielectrics not only relate with...
Our previous researches show that (Ba,Sr)TiO3(BST) ceramics with intragrain compositional gradients possess increased temperature stability, and a sol-assisted sintering technique can significantly reduce the sintering temperature and this favors the further improvement of the ceramic properties. Before sintering, preforms consisting of the mixture of barium titanate (BT) and strontium titanate (ST)...
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