中国物理B ›› 2010, Vol. 19 ›› Issue (12): 126101-126101.doi: 10.1088/1674-1056/19/12/126101

• • 上一篇    下一篇

Preferred clusters in metallic glasses

杨亮, 郭古青   

  1. College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
  • 收稿日期:2010-06-21 修回日期:2010-07-27 出版日期:2010-12-15 发布日期:2010-12-15
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 10805027), the Natural Science Foundation of Jiangsu Province of China (Grant No. BK2008397), and the Nanjing University of Aeronautics and Astronautics Research Funding, China (Grant No. NS2010168).

Preferred clusters in metallic glasses

Yang Liang(杨亮) and Guo Gu-Qing(郭古青)   

  1. College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
  • Received:2010-06-21 Revised:2010-07-27 Online:2010-12-15 Published:2010-12-15
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 10805027), the Natural Science Foundation of Jiangsu Province of China (Grant No. BK2008397), and the Nanjing University of Aeronautics and Astronautics Research Funding, China (Grant No. NS2010168).

摘要: In this work, we present a feasible scheme based on framework of the sophisticated Voronoi tessellation method in order to evaluate what clusters should be preferred for building blocks in any given metallic glass, by analysing the fivefold-symmetry axes as well as the degree of structural regularity in various clusters. This scheme is well proved by a group of experiments and calculations, which may have broad implications for exploration of obtaining explicit and proper structural pictures, and understanding the structural origin of the unique properties and glass forming ability in these novel amorphous alloys.

Abstract: In this work, we present a feasible scheme based on framework of the sophisticated Voronoi tessellation method in order to evaluate what clusters should be preferred for building blocks in any given metallic glass, by analysing the fivefold-symmetry axes as well as the degree of structural regularity in various clusters. This scheme is well proved by a group of experiments and calculations, which may have broad implications for exploration of obtaining explicit and proper structural pictures, and understanding the structural origin of the unique properties and glass forming ability in these novel amorphous alloys.

Key words: metallic glass, synchrotron radiation techniques, atomic structure, reverse Monte Carlo simulation

中图分类号:  (Glasses)

  • 61.43.Fs
64.70.P- (Glass transitions of specific systems)