Abstract
Shock compressibility of porous samples prepared from mixtures of micro- and nanosized nickel and aluminum powders is experimentally studied in the pressure range up to 60 GPa. Shock wave profiles in the samples are recorded, and Hugoniots are determined. The equation of state of the samples is derived within the framework of the Zel’dovich model. The shape of the shock wave profiles does not reveal any specific features that can be associated with a possible reaction between the components. The Hugoniots of the samples of two types of powder mixtures coincide within the experimental error despite significantly different sizes of powder particles, which implies that either there are no noticeable chemical transformations or, vice versa, they are completed within the shock loading time. The predicted Hugoniot with the reaction between the components being ignored passes in an immediate vicinity of the experimental data, which testifies to the absence of the reaction.
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Original Russian Text © V.V. Yakushev, S.Yu. Ananev, A.V. Utkin, A.N. Zhukov, A.Yu. Dolgoborodov.
Published in Fizika Goreniya i Vzryva, Vol. 54, No. 5, pp. 45–50, September–October, 2018.
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Yakushev, V.V., Ananev, S.Y., Utkin, A.V. et al. Shock Compressibility of Mixtures of Micro- and Nano-Sized Nickel and Aluminum Powders. Combust Explos Shock Waves 54, 552–557 (2018). https://doi.org/10.1134/S0010508218050064
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DOI: https://doi.org/10.1134/S0010508218050064