Affiliation:
1. Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, Novosibirsk, Russia
2. Lavrentyev Institute of Hydrodynamics of Siberian Branch of RAS, Novosibirsk, Russia
Abstract
Joint theoretical and experimental investigations have allowed to realize an
approach with use of mathematical and physical modeling of processes of a
shock wave compaction of ceramic powders. The aim of this study was to
obtain a durable low-porosity compact sample. The explosive compaction
technology is used in this problem because ceramic powders such as boron
carbide and aluminum oxide is an extremely hard and refractory material.
Therefore, its compaction by traditional methods requires special equipment
and considerable expenses. In order to better understand the influence of
the loading conditions and, in particular, to study the effect of
detonation velocity, explosive thickness and explosion pressure on the
properties of the final sample, the problem of compaction of the powder in
an axisymmetric case using the conditions of the above experiments have been
numerically solved. Thus, using the technology of explosive compaction,
compact samples of boron carbide and aluminum oxide are obtained. On the
basis of experimental and numerical studies of shock waves propagation, the
optimum scheme and parameters of dynamic compaction of boron carbide and
aluminum oxide are determined in order to maximize the density and the
conservation of the samples after dynamic loading.
Publisher
National Library of Serbia
Subject
Renewable Energy, Sustainability and the Environment
Cited by
8 articles.
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