HELIUM DYNAMICS IN METAL TRITIDES .1. THE EFFECT OF HELIUM FROM TRITIUM DECAY ON THE DESORPTION PLATEAU PRESSURE FOR LA-NI-AL TRITIDES

被引：31

作者：

WALTERS, RT

机构：

[1] Savannah River Laboratory, Westinghouse Savannah River Company, Aiken

来源：

JOURNAL OF THE LESS-COMMON METALS | 1990年 / 157卷 / 01期

关键词：

D O I：

10.1016/0022-5088(90)90410-L

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：

Helium dynamics in La-Ni-Al tritides have been observed by measuring the plateau pressure decrease for the pressure of tritium in equilibrium with the solid as a function of helium composition. Calculations suggest that a crystal lattice volume expansion, caused by helium, stabilizes the tritide. Temperature cycling the helium-altered, tritium-saturated intermetallic partially restores the plateau pressure. These data are discussed in the context of immobile helium which can gain mobility as the tritide ages. © 1990.

引用

页码：97 / 108

页数：12

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