Abstract:
An electrical breakdown of the air near the surface of a compressed granite plate initiates a shock wave in it. Having reached the back side of the plate, the shock wave causes successive (with an interval of ∼50 ns) emission of plasma jets presumably consisting of positively charged ions. The intensities of the jets are distributed exponentially. While the compression pressure P does not exceed ∼0.9–0.95 of the failure pressure Pf, it does not affect the number and efficiency of the radiation sources. At P≈(0.9−0.95)Pf, the shock wave causes the emergence of a crack destructing the sample. Simultaneously, the number and efficiency of ion sources increase 3–4-fold. This phenomenon is explained by an increase in the concentration of clusters of dislocations upon the creep of the sample.
Citation:
I. P. Shcherbakov, V. I. Vettegren, R. I. Mamalimov, Kh F Makhmudov, “The influence of stress on electron emission initiated by a shock wave from a heterogeneous material (granite)”, Fizika Tverdogo Tela, 59:3 (2017), 556–558; Phys. Solid State, 59:3 (2017), 575–577
\Bibitem{ShcVetMam17}
\by I.~P.~Shcherbakov, V.~I.~Vettegren, R.~I.~Mamalimov, Kh~F~Makhmudov
\paper The influence of stress on electron emission initiated by a shock wave from a heterogeneous material (granite)
\jour Fizika Tverdogo Tela
\yr 2017
\vol 59
\issue 3
\pages 556--558
\mathnet{http://mi.mathnet.ru/ftt9650}
\crossref{https://doi.org/10.21883/FTT.2017.03.44169.292}
\elib{https://elibrary.ru/item.asp?id=29006157}
\transl
\jour Phys. Solid State
\yr 2017
\vol 59
\issue 3
\pages 575--577
\crossref{https://doi.org/10.1134/S1063783417030295}
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https://www.mathnet.ru/eng/ftt/v59/i3/p556
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