| LaNi_(4.7)Al_(0.3)合金贮氘氚后的老化效应 |
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| 引用本文： | 李嵘,蒋国强,薛炎,张义涛,郭文胜. LaNi_(4.7)Al_(0.3)合金贮氘氚后的老化效应[J]. 核化学与放射化学, 2002, 24(1): 30-33 |
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| 作者姓名： | 李嵘 蒋国强 薛炎 张义涛 郭文胜 |
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| 作者单位： | 0253-9950(2002)01-0030-04 |
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| 摘 要： | 将氘氚装载到LaNi4.7Al0.3合金样品中并在室温下贮存480d或1120d，发现LaNi4.7Al0.3合金贮合金几乎能保留所有的衰变子体氦－3。通过氘氚化物的解吸等温线，观察到该合金存在显著的氚老化效应；坪压降低，坪斜增加，可逆容量减少及被称为“渣”（heel）的深捕陷氢同位素形成。实验还发现623K下除气可以部分消除这些老化效应。
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| 关 键 词： | LaNi4.7Al0.3 氚 老化 氦3 |
| 文章编号： | 0253-9950(2002)01-0030-04 |
| 修稿时间： | 2001-08-08 |
AGING EFFECTS OF LaNi4.7Al0.3 LOADED WITH DEUTERIUM TRITIUM |
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| LI Rong,JIANG Guo qiang,XUE Yan,ZHANG Yi tao,GUO Wen shengChina Academy of Engineering Physics,P.O.Box. AGING EFFECTS OF LaNi4.7Al0.3 LOADED WITH DEUTERIUM TRITIUM[J]. Journal of Nuclear and Radiochemistry, 2002, 24(1): 30-33 |
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| Authors: | LI Rong JIANG Guo qiang XUE Yan ZHANG Yi tao GUO Wen shengChina Academy of Engineering Physics P.O.Box |
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| Affiliation: | LI Rong, JIANG Guo qiang, XUE Yan, ZHANG Yi tao, GUO Wen shengChina Academy of Engineering Physics,P.O.Box 919(71),Mianyang 621900,China |
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| Abstract: | Deuterium tritium hybrid has been loaded on some LaNi 4.7 Al 0.3 samples and stored at room temprature for 480 and 1 120 days.The LaNi 4.7 Al 0.3 deuterotritide can retain nearly all the decay 3He. The tritium aging effects are observed by determining the equilibrium desorption isotherms for the deuterotritide.These effects include:(1) a decrease in the equilibrium plateau pressure;(2) an increase in the plateau slope;(3) a reduction in the reversible storage capacity;(4) the formation of tightly bound tritium or deuterium which is often referred as the hydrogen isotopic heel. It is found that heating to 623 K and vacuuming can reverse some of the tritium aging effects. |
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| Keywords: | LaNi 4.7 Al 0.3 tritium aging helium 3 |
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