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

作     者：李江涛 王倩男 徐亮 柳雷 张航 Sota Takagi Kouhei Ichiyanagi Ryo Fukaya Shunsuke Nozawa 胡建波 Jiangtao Li;Qiannan Wang;Liang Xu;Lei Liu;Hang Zhang;Sota Takagi;Kouhei Ichiyanagi;Ryo Fukaya;Shunsuke Nozawa;Jianbo Hu

作者机构：Laboratory for Shock Wave and Detonation Physics ResearchInstitute of Fluid PhysicsChina Academy of Engineering PhysicsMianyang 621900China State Key Laboratory for Environment-Friendly Energy MaterialsSouthwest University of Science and TechnologyMianyang 621010China Japan Society for the Promotion of ScienceTokyo102-0083Japan Institute of Materials Structure ScienceHigh Energy Accelerator Research OrganizationIbaraki305-8572Japan 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2024年第33卷第4期

页      面：586-592页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：supported by the National Natural Science Foundation of China (Grant No.12072331) the Science Challenge Project (Grant No.TZ2018001) the Japan Society for the Promotion of Science (Grant Nos.17H04820 and 21H01677) the Foundation of the United Laboratory of High-Pressure Physics and Earthquake Science performed under the approval of the Photon Factory Program Advisory Committee (Proposal Nos.2016S2-006 and 2020G680) 

主　　题：phase transformation time-resolved x-ray diffraction(XRD) bismuth metastable phase nonequilibrium phase diagram 

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