共 50 条
Fragile-to-strong transition in metallic glass-forming liquids
被引:151
作者:
Zhang, Chunzhi
[1
]
Hu, Lina
[1
]
Yue, Yuanzheng
[1
,2
]
Mauro, John C.
[3
]
机构:
[1] Shandong Univ, Key Lab Liquid Solid Struct Evolut & Proc Mat, Jinan 250061, Peoples R China
[2] Univ Aalborg, Sect Chem, DK-9000 Aalborg, Denmark
[3] Corning Inc, Sci & Technol Div, Corning, NY 14831 USA
基金:
中国国家自然科学基金;
高等学校博士学科点专项科研基金;
关键词:
ENERGY LANDSCAPE;
CONFINED WATER;
TEMPERATURE;
VISCOSITY;
PRESSURE;
RELAXATION;
DEPENDENCE;
SILICA;
ALLOYS;
MODEL;
D O I:
10.1063/1.3457670
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
Two of the Earth's most abundant substances, water and silica, exhibit some of the most unusual properties in nature. Among these is an anomalous scaling of liquid dynamics, which appear non-Arrhenius (or "fragile") at high temperatures yet Arrhenius (or "strong") at low temperatures. Here we show that this fragile-to-strong (F-S) transition is not limited to a few liquids such as water and silica, but is possibly a general behavior of metallic glass-forming liquids. We also propose a general model for the viscosity of F-S liquids that captures the scaling of dynamics across both the fragile and strong regimes. (c) 2010 American Institute of Physics. [doi:10.1063/1.3457670]
引用
收藏
页数:7
相关论文
共 50 条