SHIFT OF THE DIP IN THE ULTRALOW-FREQUENCY ELECTRIC EXCITATION SPECTRUM OF THE BRIDGMAN EFFECTстатья
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Дата последнего поиска статьи во внешних источниках: 7 марта 2018 г.
Аннотация:The previously predicted frequency shift of the deep dip in the ultra low-frequency (ULF) electric spectrum of the excitation threshold of the Bridgman effect in crystal hydrates has been observed. The appearance of this shift, which is caused by an increase in the temperature, is demonstrated for the example of magnesium hydroxide. The magnitude of the shift estimated qualitatively for two temperature — 20°C and 180°C — in a model with ULF-selective breakdowns of gas located in microcracks is virtually identical to the experimentally obtained value. This agreement attests to the possibility that micro breakdowns are excited in crystal hydrates under the conditions of a giant increase in their ULF permittivity in the process of strongly nonuniform quasistatic compression in relatively weak ac fields (E<2kV/cm).