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Direct imaging of shock wave splitting in diamond at Mbar pressure

Matter and Radiation at Extremes 2023年第6期8卷 90-100页

作者： Sergey Makarov Sergey Dyachkov Tatiana Pikuz Kento Katagiri Hirotaka Nakamura Vasily Zhakhovsky Nail Inogamov Victor Khokhlov Artem Martynenko Bruno Albertazzi Gabriel Rigon Paul Mabey nicholas jhartley Yuichi Inubushi Kohei Miyanishi Keiichi Sueda Tadashi Togashi Makina Yabashi Toshinori Yabuuchi Takuo Okuchi Ryosuke Kodama Sergey Pikuz Michel Koenig Norimasa Ozaki Joint Institute for High Temperatures of Russian Academy of Sciences 13/2 Izhorskaya St.125412 MoscowRussia Institute for Open and Transdisciplinary Research Initiative Osaka UniversitySuitaOsaka 565-0871Japan Graduate School of Engineering Osaka UniversitySuitaOsaka 565-0817Japan Institute of Laser Engineering Osaka UniversitySuitaOsaka 565-0871Japan Landau Institute for Theoretical Physics of Russian Academy of Sciences 1-A Akademika Semenova Ave.ChernogolovkaMoscow Region 142432Russia LULI CNRSCEAEcole PolytechniqueUPMCUniversite Paris 06:Sorbonne UniversitesInstitut Polytechnique de ParisF-91128 Palaiseau CedexFrance Graduate School of Science Nagoya UniversityChikusa KuNagoyaAichi 4648602Japan Department of Physics Experimental Biophysics and Space SciencesFreie Universitat BerlinArnimallee 1414195 BerlinGermany SLAC National Accelerator Laboratory 2575 Sand Hill RoadMenlo ParkCalifornia 94025USA Japan Synchrotron Radiation Research Institute SayoHyogo 679-5198Japan RIKEN SPring-8 Center SayoHyogo 679-5148Japan Institute for Integrated Radiation and Nuclear Science Kyoto UniversityYoshida-honmachiSakyo-kuKyoto 606-8501Japan

Understanding the behavior of matter at extreme pressures of the order of a megabar(Mbar)is essential to gain insight into various physical phenomena at macroscales—the formation of planets,young stars,and the cores of super-Earths,and at microscales—damage to ceramic materials and high-pressure plastic transformation and phase transitions in *** dynamic compression of solids up to Mbar pressures,even a solid with high strength exhibits plastic properties,causing the induced shock wave to split in two:an elastic precursor and a plastic shock *** phenomenon is described by theoretical models based on indirect measurements of material *** advent of x-ray free-electron lasers(XFELs)has made it possible to use their ultrashort pulses for direct observations of the propagation of shock waves in solid materials by the method of phase-contrast ***,there is still a lack of comprehensive data for verification of theoretical models of different ***,we present the results of an experiment in which the evolution of the coupled elastic-plastic wave structure in diamond was directly observed and studied with submicrometer spatial resolution,using the unique capabilities of the x-ray free-electron laser(XFEL).The direct measurements allowed,for the first time,the fitting and validation of the 2D failure model for diamond in the range of several *** experimental approach opens new possibilities for the direct verification and construction of equations of state of matter in the ultra-high-stress range,which are relevant to solving a variety of problems in high-energy-density physics.

关键词： shock wave solids

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