This article is cited in 12 papers

Brief Communications

Dynamics of fractoluminescence and electromagnetic and acoustic emission upon an impact against the marble surface

V. I. Vettegren, V. S. Kuksenko, I. P. Shcherbakov

Ioffe Institute, St. Petersburg

Abstract: The blow of a steel striker against the marble surface induces strain waves and electromagnetic emission. Simultaneously, microcracks appear in the marble single crystal with excited free CO$_2^-$ radicals at the microcrack banks. Relaxation of electronic excitation leads to the emergence of fractoluminescence bursts. The burst intensity is proportional to the area of the microcrack surfaces. Measurements show that the linear size of the microcracks varies from $\sim$ 2 to $\sim$ 47 $\mu$m.

Received: 21.02.2012

 English version: Technical Physics, 2013, 58:1, 136–139

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