X-ray free electron laser observation of ultrafast lattice behaviour under femtosecond laser-driven shock compression in iron
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Published:2023-08-31
Issue:1
Volume:13
Page:
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ISSN:2045-2322
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Container-title:Scientific Reports
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language:en
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Short-container-title:Sci Rep
Author:
Sano TomokazuORCID, Matsuda Tomoki, Hirose Akio, Ohata Mitsuru, Terai Tomoyuki, Kakeshita Tomoyuki, Inubushi Yuichi, Sato Takahiro, Miyanishi Kohei, Yabashi MakinaORCID, Togashi Tadashi, Tono Kensuke, Sakata Osami, Tange Yoshinori, Arakawa KazutoORCID, Ito Yusuke, Okuchi TakuoORCID, Sato Tomoko, Sekine Toshimori, Mashimo Tsutomu, Nakanii Nobuhiko, Seto Yusuke, Shigeta Masaya, Shobu Takahisa, Sano Yuji, Hosokai Tomonao, Matsuoka Takeshi, Yabuuchi Toshinori, Tanaka Kazuo A., Ozaki NorimasaORCID, Kodama Ryosuke
Abstract
AbstractOver the past century, understanding the nature of shock compression of condensed matter has been a major topic. About 20 years ago, a femtosecond laser emerged as a new shock-driver. Unlike conventional shock waves, a femtosecond laser-driven shock wave creates unique microstructures in materials. Therefore, the properties of this shock wave may be different from those of conventional shock waves. However, the lattice behaviour under femtosecond laser-driven shock compression has never been elucidated. Here we report the ultrafast lattice behaviour in iron shocked by direct irradiation of a femtosecond laser pulse, diagnosed using X-ray free electron laser diffraction. We found that the initial compression state caused by the femtosecond laser-driven shock wave is the same as that caused by conventional shock waves. We also found, for the first time experimentally, the temporal deviation of peaks of stress and strain waves predicted theoretically. Furthermore, the existence of a plastic wave peak between the stress and strain wave peaks is a new finding that has not been predicted even theoretically. Our findings will open up new avenues for designing novel materials that combine strength and toughness in a trade-off relationship.
Publisher
Springer Science and Business Media LLC
Subject
Multidisciplinary
Reference61 articles.
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