Email this article Elastic Precursor Decay and Spallation in Nonporous Tungsten Carbide Ceramics
- Authors: Savinykh A.S.1, Cherepanov I.A.1,2, Razorenov S.V.1, Mandel K.3, Krüger L.3
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Affiliations:
- Institute of Problems of Chemical Physics, Russian Academy of Sciences
- Moscow State University
- Freiberg University of Mining and Technology
- Issue: Vol 64, No 3 (2019)
- Pages: 356-360
- Section: Solid State
- URL: https://journal-vniispk.ru/1063-7842/article/view/203062
- DOI: https://doi.org/10.1134/S1063784219030216
- ID: 203062
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Abstract
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.
About the authors
A. S. Savinykh
Institute of Problems of Chemical Physics, Russian Academy of Sciences
Author for correspondence.
Email: savas@ficp.ac.ru
Russian Federation, Chernogolovka, Moscow oblast, 142432
I. A. Cherepanov
Institute of Problems of Chemical Physics, Russian Academy of Sciences; Moscow State University
Email: savas@ficp.ac.ru
Russian Federation, Chernogolovka, Moscow oblast, 142432; Moscow, 119991
S. V. Razorenov
Institute of Problems of Chemical Physics, Russian Academy of Sciences
Email: savas@ficp.ac.ru
Russian Federation, Chernogolovka, Moscow oblast, 142432
K. Mandel
Freiberg University of Mining and Technology
Email: savas@ficp.ac.ru
Germany, Freiberg, 09599
L. Krüger
Freiberg University of Mining and Technology
Email: savas@ficp.ac.ru
Germany, Freiberg, 09599
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