Elastic precursor decay and spallation in nonporous tungsten carbide ceramics

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2019 | Krüger, L.

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Elastic precursor decay and spallation in nonporous tungsten carbide ceramics	458 KB	Adobe Acrobat PDF	Read	Download
DOI Доступ к ресурсу на сайте издателя			10.1134/S1063784219030216

Title: Elastic precursor decay and spallation in nonporous tungsten carbide ceramics
Creator: Cherepanov, I. A.
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Razorenov, Sergey V.
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Mandel, K.
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Krüger, L.
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Savinykh, Andrey S.
Date: 2019
DOI: 10.1134/S1063784219030216
Description: 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.