中国物理B(英文版)2024,Vol.33Issue(4) :585-592.DOI:10.1088/1674-1056/ad0ec6

In situ observation of the phase transformation kinetics of bismuth during shock release

李江涛 王倩男 徐亮 柳雷 张航 Sota Takagi Kouhei Ichiyanagi Ryo Fukaya Shunsuke Nozawa 胡建波
中国物理B(英文版)2024,Vol.33Issue(4) :585-592.DOI:10.1088/1674-1056/ad0ec6

In situ observation of the phase transformation kinetics of bismuth during shock release

李江涛 1王倩男 1徐亮 1柳雷 2张航 1Sota Takagi 3Kouhei Ichiyanagi 4Ryo Fukaya 4Shunsuke Nozawa 4胡建波1
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作者信息

  • 1. Laboratory for Shock Wave and Detonation Physics Research,Institute of Fluid Physics,China Academy of Engineering Physics,Mianyang 621900,China;State Key Laboratory for Environment-Friendly Energy Materials,Southwest University of Science and Technology,Mianyang 621010,China
  • 2. Laboratory for Shock Wave and Detonation Physics Research,Institute of Fluid Physics,China Academy of Engineering Physics,Mianyang 621900,China
  • 3. Japan Society for the Promotion of Science,Tokyo,102-0083,Japan;Institute of Materials Structure Science,High Energy Accelerator Research Organization(KEK),Ibaraki,305-8572,Japan
  • 4. Institute of Materials Structure Science,High Energy Accelerator Research Organization(KEK),Ibaraki,305-8572,Japan
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Abstract

A time-resolved x-ray diffraction technique is employed to monitor the structural transformation of laser-shocked bismuth.Results reveal a retarded transformation from the shock-induced Bi-V phase to a metastable Bi-Ⅳ phase during the shock release,instead of the thermodynamically stable Bi-Ⅲ phase.The emergence of the metastable Bi-Ⅳ phase is understood by the competitive interplay between two transformation pathways towards the Bi-Ⅳ and Bi-Ⅲ,respectively.The former is more rapid than the latter because the Bi-Ⅴ to B-Ⅳ transformation is driven by interaction between the closest atoms while the Bi-V to B-Ⅲ transformation requires interaction between the second-closest atoms.The nucleation time for the Bi-Ⅴ to Bi-Ⅳ transformation is determined to be 5.1±0.9 ns according to a classical nucleation model.This observation demonstrates the importance of the formation of the transient metastable phases,which can change the phase transformation pathway in a dynamic process.

Key words

phase transformation/time-resolved x-ray diffraction(XRD)/bismuth/metastable phase/nonequi-librium phase diagram

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基金项目

国家自然科学基金(12072331)

Science Challenge Project(TZ2018001)

Japan Society for the Promotion of Science(17H04820)

Japan Society for the Promotion of Science(21H01677)

Foundation of the United Laboratory of High-Pressure Physics and Earthquake Science()

Photon Factory Program Advisory Committee(2016S2-006)

Photon Factory Program Advisory Committee(2020G680)

出版年

2024
中国物理B(英文版)
中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI
影响因子:0.995
ISSN:1674-1056
参考文献量48
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