Interdiffusion in uranium-zirconium solid solutions

被引：34

作者：

Ogata, T ^{[1
]}

Akabori, M ^{[1
]}

Itoh, A ^{[1
]}

Ogawa, T ^{[1
]}

机构：

[1] JAPAN ATOM ENERGY RES INST,TOKAI,IBARAKI 31911,JAPAN

来源：

JOURNAL OF NUCLEAR MATERIALS | 1996年 / 232卷 / 2-3期

关键词：

D O I：

10.1016/S0022-3115(96)00409-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Interdiffusion coefficients in the (gamma-U, beta-Zr) solid solutions have been measured in the temperature range of 973 to 1223 K and in the Zr concentration range of 0.1 to 0.95 atomic fraction. The data measured at lower temperature than 1223 K have shown notable depression in the Zr concentration range of 0.2 to 0.4 atomic fraction. The dependencies of the obtained data on alloy composition and temperature are consistent with variation of the thermodynamic factor which is calculated based on the evaluation of the activity coefficient in the U-Zr system. The interdifusion coefficient in the neighborhood of the Zr atomic fraction of 0.3 cannot be expressed by a single set of a frequency factor and an activation energy because of the significant influence of the thermodynamic factor on the interdiffusivity in the U-Zr solid solutions.

引用

页码：125 / 130

页数：6