The Role of Graphene Admixtures in the Stability of Aluminum Oxide to Brittle Fracture under Pulsed Electrophysical Actions

We report the results of testing the dynamic strength of Al 2 O 3 nanoceramics with different concentrations of five-layer graphene under the action of a high-current nanosecond electron beam and a high-voltage electric discharge of the same nanosecond duration. It is found that, under pulsed loadin...

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Bibliographic Details
Published in:Technical physics 2021-03, Vol.66 (3), p.470-475
Main Authors: Kuznetsov, A. V., Morozov, V. A., Savenkov, G. G., Stolyarov, V. V.
Format: Article
Language:English
Subjects:
Aluminum oxide
Classical and Continuum Physics
Electric discharges
Electron beams
Graphene
Graphite
Nanocomposites
Physical Science of Materials
Physics
Physics and Astronomy
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Summary:We report the results of testing the dynamic strength of Al 2 O 3 nanoceramics with different concentrations of five-layer graphene under the action of a high-current nanosecond electron beam and a high-voltage electric discharge of the same nanosecond duration. It is found that, under pulsed loading, an increase in the graphene content in the composite increases the brittleness of the nanocomposite.
ISSN:1063-7842
1090-6525
DOI:10.1134/S1063784221030154