Elastic Precursor Decay and Spallation in Nonporous Tungsten Carbide Ceramics

Autor:	S. V. Razorenov, Lutz Krüger, Andrey Savinykh, K. Mandel, I. A. Cherepanov
Rok vydání:	2019
Předmět:	010302 applied physics Materials science Physics and Astronomy (miscellaneous) Sintering непористая керамика Spall 01 natural sciences 010305 fluids & plasmas Shock (mechanics) chemistry.chemical_compound Compressive strength chemistry Tungsten carbide visual_art 0103 physical sciences visual_art.visual_art_medium Spallation карбид вольфрама ударное сжатие Ceramic Composite material Deformation (engineering) высокоскоростная деформация
Zdroj:	Technical physics. 2019. Vol. 64, № 3. P. 356-360
ISSN:	1090-6525 1063-7842
DOI:	10.1134/s1063784219030216
Popis:	To identify the possible contribution of relaxation processes to the resistance against high-rate deformation, evolution of shock-compression waves in tungsten carbide (WC) ceramics manufactured by spark-plasma sintering at a maximum compressive stress of 27 GPa is measured. Strong elastic precursor decay upon changing the thickness of the samples from 0.15 to 4 mm is revealed. At maximum shock compressive stresses twice exceeding the Hugoniot elastic limit, a decrease in the spall strength value by about 30% from its value in the elastic region is recorded.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::14d62262d862330d54f642fe68b1acc8 https://doi.org/10.1134/s1063784219030216 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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