Fragile-to-Strong Transition in Al-Ni-M （M=La, Pr, Nd） Metallic Glasses

作     者：张春芝 胡丽娜 边秀房 岳远征 

作者机构：Key Laboratory of Liquid Structure and Heredity of Materials (Ministry of Education) Shandong University Jinan 250061 Section of Chemistry Aalborg University DK-9000 Aalborg Denmark 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2010年第27卷第11期

页      面：156-158页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 070301[理学-无机化学] 

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos 50801041 and 50871062  the Shandong- Provincial Natural Science Foundation under Grant No Z2008F08  and the Research Fund for the Doctoral Program of Higher Education of China (200804221041) 

主　　题：Soft matter liquids and polymers Condensed matter: structural mechanical & thermal 

摘      要：We study the dynamic behavior of marginal metallic glass-forming liquids Al-Ni-M （M=La, Pr, Nd） in terms of liquid fragility in high and low temperature regions. The liquids are extremely fragile above the liquidus temperature T liq, but become rather strong near the glass transition temperature Tg. The strength of the transition is inversely correlated with the fragility index at Tg. This relation is discussed in terms of potential energy landscape.