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Technical Physics

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01-03-2019 | SOLID STATE

Elastic Precursor Decay and Spallation in Nonporous Tungsten Carbide Ceramics

Authors: A. S. Savinykh, I. A. Cherepanov, S. V. Razorenov, K. Mandel, L. Krüger

Published in: Technical Physics | Issue 3/2019

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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.

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Title: Elastic Precursor Decay and Spallation in Nonporous Tungsten Carbide Ceramics
Authors: A. S. Savinykh
I. A. Cherepanov
S. V. Razorenov
K. Mandel
L. Krüger
Publication date: 01-03-2019
Publisher: Pleiades Publishing
Published in: Technical Physics / Issue 3/2019
Print ISSN: 1063-7842
Electronic ISSN: 1090-6525
DOI: https://doi.org/10.1134/S1063784219030216

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