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Direct TEM Observation of Phase Separation and Crystallization in Cu_(45)Zr_(45)Ag_(10)Metallic Glass
  • ISSN号:1006-7191
  • 期刊名称:《金属学报:英文版》
  • 时间:0
  • 分类:TG[金属学及工艺]
  • 作者机构:[1]Key Laboratory of Aerospace Materials and Performance(Ministry of Education), School of Materials Science andEngineering, Beihang University, Beijing 100191, China, [2]Delft University of Technology, Kavli Institute ofNanoscience, 2628 CJ Delft, The Netherlands, [3]Shenyang National Laboratory for Materials Science,Institute of Metal Research, Chinese Academy of Sciences,Shenyang 110016, China
  • 相关基金:supported by the National Natural Science Foundation of China (Grant No. 51101004); the financial support of China Scholarship Council. Z.Q. Liu is grateful; support by the IMR SYNL-T.S. Kê Research Fellowship
中文摘要:

Cu 45 Zr 45 Ag 10 金属性的玻璃被调查由在 situ 传播,电子显微镜学加热试验。在阶段分离和结晶化之间的关系被阐明。在早舞台的成核和控制生长的 nanoscale 阶段分离被看见阻碍 nanocrystallization,当经由 Ag 富有的 nanospheres 的聚集的更粗糙的阶段分离被发现支持 Cu 富有的 nanocrystals 的降水时。作文和动力学异质联合应当在先于结晶化的阶段分离期间起一个关键作用。

英文摘要:

The structural evolution of Cu_(45)Zr_(45)Ag_(10) metallic glass was investigated by in situ transmission electron microscopy heating experiments. The relationship between phase separation and crystallization was elucidated. Nucleation and growth-controlled nanoscale phase separation at early stage were seen to impede nanocrystallization, while a coarser phase separation via aggregation of Ag-rich nanospheres was found to promote the precipitation of Cu-rich nanocrystals.Coupling of composition and dynamics heterogeneities was supposed to play a key role during phase separation preceding crystallization.

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期刊信息
  • 《金属学报:英文版》
  • 中国科技核心期刊
  • 主管单位:中国科协
  • 主办单位:中国金属学会
  • 主编:
  • 地址:沈阳文华路72号
  • 邮编:110016
  • 邮箱:jsxb@imr.ac.cn
  • 电话:024-23971286
  • 国际标准刊号:ISSN:1006-7191
  • 国内统一刊号:ISSN:21-1361/TG
  • 邮发代号:
  • 获奖情况:
  • 国内外数据库收录:
  • 被引量:286