Evolution of Shock Waves in Hot-Pressed Ceramics of Boron Carbide and Silicon Carbide

Autor:	I. A. Cherepanov, S. S. Ordan’yan, S. V. Razorenov, A. I. Ovsienko, Andrey Savinykh, V. I. Rumyantsev
Rok vydání:	2018
Předmět:	010302 applied physics Shock wave Materials science Physics and Astronomy (miscellaneous) 02 engineering and technology Boron carbide 021001 nanoscience & nanotechnology 01 natural sciences Shock (mechanics) chemistry.chemical_compound Compressive strength chemistry visual_art 0103 physical sciences visual_art.visual_art_medium Silicon carbide Ceramic Composite material Deformation (engineering) 0210 nano-technology Longitudinal wave
Zdroj:	Technical Physics. 63:1755-1761
ISSN:	1090-6525 1063-7842
DOI:	10.1134/s1063784218120186
Popis:	In this paper we studied the evolution of shock compression waves in hot-pressed ceramics based on boron carbide and silicon carbide at a maximum compressive stress of 32 and 34 GPa, respectively, to determine the possible contribution of relaxation processes to the resistance to high-rate deformation. At a change in sample thickness from 0.5 to 8 mm, an appreciable decay of the elastic precursor was observed in boron carbide while an insignificant anomalous growth of the elastic precursor with a sample thickness was observed in the experiments with silicon carbide samples of various thickness. The measured value of the Hugoniot elastic limit of samples with a thickness of 8 mm was σHEL = 17.2 ± 1.3 GPa for boron carbide and σHEL = 15 ± 0.1 GPa for silicon carbide.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::92dbd6b1929d12a5b0f23d1ed70b3739 https://doi.org/10.1134/s1063784218120186 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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