In the paper, the results of investigations of temperature and frequency dependences of dielectric permeability and dielectric loss of compositions LDPE + xvol%Bi2Te3 are stated. The investigations were carried out at frequency 10 – 105 Hz and temperature 20°C - 150°C intervals, respectively. It was revealed that increase of percentage of the filler Bi2Te3 in the matrix, reduces to increase of dielectric permeability and dielectric loss of composites LDPE + xvol%Bi2Te3 in connection with the change reducing to Maxwell-Wagner’s volume polarization and emergence of comparative strong inner field in semiconductor clusters.
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