Thermodynamics and kinetics of the Zr41.2Ti13.8Cu10.0Ni12.5Be22.5 bulk metallic glass forming liquid:: glass formation from a strong

被引：49

作者：

Masuhr, A ^{[1
]}

Busch, R ^{[1
]}

Johnson, WL ^{[1
]}

机构：

[1] CALTECH, WM Keck Lab Engn Mat, Pasadena, CA 91125 USA

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 1999年 / 250卷

关键词：

D O I：

10.1016/S0022-3093(99)00133-7

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The flow properties of Zr41.2Ti13.8Cu10.0Ni12.5Be22.5 have been measured both in the liquid and supercooled liquid state, spanning 15 orders of magnitude in viscosity. We used beam bending experiments in the vicinity of the glass transition regime and concentric cylinder rheometry near the liquidus temperature to find very large viscosities for a metallic system of 2 Pa s in the equilibrium liquid. The temperature dependence of the viscosity is discussed in the framework of the Adam-Gibbs entropy model as well as the free volume model for viscous flow. The thermodynamic functions on the one side and the specific volume on the other have been measured previously and allow for a detailed comparison of the two phenomenological descriptions. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：566 / 571

页数：6

共 25 条

[1] ON TEMPERATURE DEPENDENCE OF COOPERATIVE RELAXATION PROPERTIES IN GLASS-FORMING LIQUIDS [J].