Effect of Thermal Memory in Acoustic Emission in Fossil Coal after Pre-Disintegration by Cryogenic Treatment

Acoustic emission response of fossil coals being at different stages of metamorphism to cyclic variation of effective thermal stresses is experimentally investigated. The equipment and procedure used in the experiments are described. The features of the response are revealed and analyzed in the samp...

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Veröffentlicht in:	Journal of mining science 2018-11, Vol.54 (6), p.883-892
Hauptverfasser:	Novikov, E. A., Shkuratnik, V. L., Zaitsev, M. G.
Format:	Artikel
Sprache:	eng
Schlagworte:	Acoustic emission Acoustics Analogs Anthracite Bituminous coal Climatic conditions Coal Cryogenic treatment Disintegration Earth and Environmental Science Earth Sciences Fossils Freeze thaw cycles Freeze-thaw durability Freezing Frost Frost damage Geomechanics Geophysics/Geodesy Geotechnical Engineering & Applied Earth Sciences Heat treatment Heating Lignite Metamorphism Metamorphism (geology) Mineral Resources Oxidation Oxidation resistance Saturation Spontaneous combustion Storage Structural damage Thawing Thermal resistance Thermal stress
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