This article is cited in 4 papers

Mechanical properties, strength physics and plasticity

Nanosecond dynamics of the destruction of heterogeneous natural bodies by friction

V. I. Vettegren^a, A. V. Ponomarev^b, K. Arora^c, Haris Raza^c, R. I. Mamalimov^a, I. P. Shcherbakov^a, I. V. Fokin<sup>b

a</sup> Ioffe Institute, St. Petersburg
^b Institute of Physics of the Earth, Russian Academy of Scienses
^c CSIR National Geophysical Research Institute, Hyderabad, India

Abstract: Luminescence caused by friction of heterogeneous solids (basalt and granite) was investigated, the spectra are recorded, and the dynamics of the luminescence intensity were studied. Under friction, the crystal lattices of these bodies are destroyed, and the luminescenting $\equiv$ Si–O$^{-}$ free radicals and Fe$^{3+}$ ions and electron traps located on the surface of microcracks are formed. The dynamics of accumulation of microcracks is investigated at a time resolution of 2 ns, and their sizes determined to be about 6–10 $\mu$m.

Keywords: Nanosecond Dynamics, Abstract Luminescence, Basalt, Quartz Crystal Lattice, Triboluminescence (TL).

Received: 05.03.2017
Revised: 12.04.2018

DOI: 10.21883/FTT.2018.11.46674.057

 English version: Physics of the Solid State, 2018, 60:11, 2300–2304

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