AGING EFFECTS OF TRITIUM ON Pd POWDERS AND Pd91.31Y8.50Ru0.19 ALLOY FILM

被引：0
|
作者：
Chen Miao [1 ]
Lu Guangda [2 ]
Zhang Guikai [1 ]
Zhang Yanzhi [1 ]
Wang Xiaoying [1 ]
Ren Dapeng [2 ]
机构：
[1] Natl Key Lab Surface Phys & Chem, Mianyang 621907, Peoples R China
[2] China Acad Engn Phys, Mianyang 621900, Peoples R China
来源：
ACTA METALLURGICA SINICA | 2009年 / 45卷 / 10期
关键词：
Pd; Pd91.31Y8.50Ru0.19; tritium aging; He-3; He bubble; PALLADIUM TRITIDE; SEPARATION; MEMBRANES; STORAGE; TEM;
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
During tritium (T) treatment, Pd and its alloys will be aged due to solution of He-3, a product of T decay, in lattices, which changes the microstructure and properties of the materials. The existing and distributing states of He-3 in Pd and Pd91.31Y8.50Ru0.19 alloy during T aging were studied by XRD and TEM. XRD results for Pd powders aged up to 1.6 and 3.5 a show that the peaks widen, intensities of peaks reduce and lattice constants increase by 0.095% and 0.11%, respectively. TEM. observations show that, about 1 nm sized He bubbles appear in Pd91.31Y8.50Ru0.19 alloy aged for 41 d, and more dislocations and dislocation loops are observed; after 295 d aging, the He bubbles grow slightly and reach 1.2-1.4 nm in diameter, but the amounts of dislocations and dislocation loops decrease.
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页码：1277 / 1280
页数：4
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