Various Structure and Texture Changes Induced by Shock Compression

—Application of Transmission Electron Microscopy to Shock Recovery Experiment—

Abstract

Residual effects in solid materials produced by intense shock wave are examined by transmission electron microscopy. Several characteristic textures induced by shock compression are shown. Examination of shock-induced phases of Nb₂O₅, TiO₂, MnF₂ and mullite provides important information on the mechanism of the shock-induced phase transitions. Shock metamorphism of Bi₂Sr₂CaCu₂O₈ and quartz is presented. Various microscopic textures caused by chemical reactions under shock process are demonstrated for the case of decomposition reaction in SiO and ZrSiO₄, and redox reaction between SiO₂ and the 5 group metals (Ta, Nb).