Abstract
Samples with porosities of 2–3 and 13% consisting of fine-grained quartz dispersed in a silver matrix were subjected to shock compression up to 28, 33, and 37 GPa in planar recovery ampoules. In samples with a porosity of 2–3%, after purification from silver, along with amorphized quartz, a crystalline high pressure silicon dioxide phase was detected by powder X-ray diffraction, which differs from stishovite and presumably has a monoclinic lattice.
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This study was supported by the Ministry of Science and Higher Education of the Russian Federation (agreement no. 075-15-2020-785 with the Joint Institute of High Temperatures, Russian Academy of Sciences).
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Zhukov, A.N., Yakushev, V.V. & Rogacheva, A.I. Shock-Wave Transformations of Fine-Grained Quartz Dispersed in a Silver Matrix. High Temp 61, 801–805 (2023). https://doi.org/10.1134/S0018151X23060068
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DOI: https://doi.org/10.1134/S0018151X23060068