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This article is cited in 3 scientific papers (total in 3 papers)
Physical science of materials
Effect of the voltage pulse front steepness on the electric strength of polymers
V. A. Zakrevskiia, V. A. Pakhotina, N. T. Sudarb a Ioffe Institute, St. Petersburg
b Peter the Great St. Petersburg Polytechnic University
Abstract:
We have studied the effect of the leading edge steepness of a high-voltage pulse front on the dielectric strength of 3-$\mu$m-thick polyethylene terephthalate film. It is found that its breakdown electric field strength increases logarithmically from 550 to 700 MV/m upon an increase in the voltage growth rate (pulse front steepness) from 2 to 70 GV/s. It is shown that the experimental data can be described using the concept of the ionization mechanism of polymer breakdown, which is not associated with the evolution of impact ionization in polymers, and accounting for the decrease in the overvoltage coefficient in a polymer dielectric upon an increase in the pulse front steepness.
Received: 02.03.2018
Citation:
V. A. Zakrevskii, V. A. Pakhotin, N. T. Sudar, “Effect of the voltage pulse front steepness on the electric strength of polymers”, Zhurnal Tekhnicheskoi Fiziki, 89:1 (2019), 120–125; Tech. Phys., 63:12 (2018), 1814–1819
Linking options:
https://www.mathnet.ru/eng/jtf5728 https://www.mathnet.ru/eng/jtf/v89/i1/p120
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Abstract page: | 49 | Full-text PDF : | 56 |
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