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 per...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.展开更多
Materials Futures is co-published by the Songshan Lake Materials Laboratory and the UK’s IOP Publishing house,with support from the Institute of Physics,Chinese Academy of Sciences.The journal is dedicated to publish...Materials Futures is co-published by the Songshan Lake Materials Laboratory and the UK’s IOP Publishing house,with support from the Institute of Physics,Chinese Academy of Sciences.The journal is dedicated to publishing seminal works in wide-ranging areas including metals and ceramics,energy materials,nanomaterials,quantum materials and biomaterials.Its scope covers studies regarding novel materials,materials properties and applications,as well as materials computation,theory and design(synthesis,processing,characterization etc).It strives to serve the research community and aims to become a top-tier journal for materials science.展开更多
基金supported by the National Natural Science Foundation of China(Grant Nos.51271195 and 51271197)the National Basic Research Program of China(Grant No.2015CB856800)+1 种基金the Fundamental Research Funds for the Central Universities,Chinathe Research Funds of Renmin University of China(Grnat No.16XNLQ01)
文摘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.
文摘Materials Futures is co-published by the Songshan Lake Materials Laboratory and the UK’s IOP Publishing house,with support from the Institute of Physics,Chinese Academy of Sciences.The journal is dedicated to publishing seminal works in wide-ranging areas including metals and ceramics,energy materials,nanomaterials,quantum materials and biomaterials.Its scope covers studies regarding novel materials,materials properties and applications,as well as materials computation,theory and design(synthesis,processing,characterization etc).It strives to serve the research community and aims to become a top-tier journal for materials science.
