中国物理B ›› 2017, Vol. 26 ›› Issue (1): 16104-016104.doi: 10.1088/1674-1056/26/1/016104

所属专题: TOPICAL REVIEW — Amorphous physics and materials

• TOPICAL REVIEW—Amorphous physics and materials • 上一篇    下一篇

Five-fold local symmetry in metallic liquids and glasses

M Z Li(李茂枝), H L Peng(彭海龙), Y C Hu(胡远超), F X Li(李福祥), H P Zhang(张华平), W H Wang(汪卫华)   

  1. 1. Department of Physics, Beijing Key Laboratory of Opto-electronic Functional Materials & Micro-nano Devices, Renmin University of China, Beijing 100872, China;
    2. Institute of Physics, Chinese Academy of Sciences, Beijing 100091, China
  • 收稿日期:2016-09-13 修回日期:2016-11-10 出版日期:2017-01-05 发布日期:2017-01-05
  • 通讯作者: M Z Li E-mail:maozhili@ruc.edu.cn
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 51271195 and 51271197), the National Basic Research Program of China (Grant No. 2015CB856800), the Fundamental Research Funds for the Central Universities, China, and the Research Funds of Renmin University of China (Grnat No. 16XNLQ01).

Five-fold local symmetry in metallic liquids and glasses

M Z Li(李茂枝)1, H L Peng(彭海龙)2, Y C Hu(胡远超)2, F X Li(李福祥)1, H P Zhang(张华平)1, W H Wang(汪卫华)2   

  1. 1. Department of Physics, Beijing Key Laboratory of Opto-electronic Functional Materials & Micro-nano Devices, Renmin University of China, Beijing 100872, China;
    2. Institute of Physics, Chinese Academy of Sciences, Beijing 100091, China
  • Received:2016-09-13 Revised:2016-11-10 Online:2017-01-05 Published:2017-01-05
  • Contact: M Z Li E-mail:maozhili@ruc.edu.cn
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 51271195 and 51271197), the National Basic Research Program of China (Grant No. 2015CB856800), the Fundamental Research Funds for the Central Universities, China, and the Research Funds of Renmin University of China (Grnat No. 16XNLQ01).

摘要:

The structure of metallic glasses has been a long-standing mystery. Owing to the disordered nature of atomic structures in metallic glasses, it is a great challenge to find a simple structural description, such as periodicity for crystals, for establishing the structure-property relationship in amorphous materials. In this paper, we briefly review the recent developments of the five-fold local symmetry in metallic liquids and glasses and the understanding of the structure-property relationship based on this parameter. Experimental evidence demonstrates that five-fold local symmetry is found to be general in metallic liquids and glasses. Comprehensive molecular dynamics simulations show that the temperature evolution of five-fold local symmetry reflects the structural evolution in glass transition in cooling process, and the structure-property relationship such as relaxation dynamics, dynamic crossover phenomena, glass transition, and mechanical deformation in metallic liquids and glasses can be well understood base on the simple and general structure parameter of five-fold local symmetry.

关键词: metallic glass, structure-property relation, five-fold local symmetry

Abstract:

The structure of metallic glasses has been a long-standing mystery. Owing to the disordered nature of atomic structures in metallic glasses, it is a great challenge to find a simple structural description, such as periodicity for crystals, for establishing the structure-property relationship in amorphous materials. In this paper, we briefly review the recent developments of the five-fold local symmetry in metallic liquids and glasses and the understanding of the structure-property relationship based on this parameter. Experimental evidence demonstrates that five-fold local symmetry is found to be general in metallic liquids and glasses. Comprehensive molecular dynamics simulations show that the temperature evolution of five-fold local symmetry reflects the structural evolution in glass transition in cooling process, and the structure-property relationship such as relaxation dynamics, dynamic crossover phenomena, glass transition, and mechanical deformation in metallic liquids and glasses can be well understood base on the simple and general structure parameter of five-fold local symmetry.

Key words: metallic glass, structure-property relation, five-fold local symmetry

中图分类号:  (Computer simulation of liquid structure)

  • 61.20.Ja
61.25.Mv (Liquid metals and alloys) 64.70.pe (Metallic glasses) 64.70.Q- (Theory and modeling of the glass transition)