NUCLEAR-REACTION ANALYSIS OF DEUTERIUM DIFFUSION IN ZR-2.5 WT-PERCENT NB PRESSURE TUBE MATERIAL

被引：9

作者：

LAURSEN, T ^{[1
]}

LEGER, M ^{[1
]}

WHITTON, JL ^{[1
]}

机构：

[1] ONTARIO HYDRO,TORONTO M8Z 5S4,ONTARIO,CANADA

来源：

JOURNAL OF NUCLEAR MATERIALS | 1988年 / 158卷

关键词：

Nuclear Reactors--Materials - Tubes - Zirconium Niobium Alloys--Analysis;

D O I：

10.1016/0022-3115(88)90153-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nuclear reaction analysis (NRA) has been used to measure the diffusion coefficient of deuterium in Zr-2.5 wt percent Nb pressure tube material. The measured diffusion coefficient is 1.13×10-10 m2 s-1 at 300°C and 1.23×10-10 m2 s-1 at 350°C. The results are in reasonable agreement with measurements carried out by vacuum extraction analysis. The value obtained for the diffusion coefficient at 350°C is lower than a prediction based on measurements at lower temperatures and may be showing the influence of the break-up of the β-phase, although some effect due to tube-to-tube variability cannot be discounted. NRA detects a surface deuterium peak which is shown to correlate with the bulk deuteride concentration.

引用

页码：49 / 56

页数：8

共 8 条

[1] CANDU-PHW PRESSURE TUBES - THEIR MANUFACTURE, INSPECTION, AND PROPERTIES [J].