利用D-D核反应对氘在钯中沉积行为的研究

何厚军; 徐晓辉; 路咏凯; 邹建新; 王强; 关兴彩; 赵江涛; 王铁山

doi:10.11889/j.0253-3219.2017.hjs.40.020201

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利用D-D核反应对氘在钯中沉积行为的研究

低能加速器技术、射线技术及应用 | 更新时间：2021-05-19

- 利用D-D核反应对氘在钯中沉积行为的研究
- Study of deposition behavior of deuterium in palladium using D-D nuclear reaction
- 核技术 2017年40卷第2期文章编号：020201
- 作者机构：
  
  兰州大学核科学与技术学院兰州 730000
- 作者简介：
  
  [ "何厚军, 男, 1989年出生, 2014年毕业于四川大学, 现为硕士研究生, 研究方向为金属中氢沉积行为研究", "HE Houjun, male, born in 1989, graduated from Sichuan University in 2014, master student, focusing on study of hydrogen deposition behavior in metals" ]
  王铁山, E-mail:tswang@lzu.edu.cn WANG Tieshan, E-mail:tswang@lzu.edu.cn
- 基金信息：
  
  国家自然科学基金(11275085);国家自然科学基金(11305080);国家自然科学基金(11405079);中央高校基本科研业务费(lzujbky-2016-36);日本科研补助金(19340051)
- DOI：10.11889/j.0253-3219.2017.hjs.40.020201
  中图分类号： TL99
- 收稿日期：2016-10-11，
  
  修回日期：2016-12-23，
  
  纸质出版日期：2017-02-10
- 稿件说明：
移动端阅览
何厚军, 徐晓辉, 路咏凯, 等. 利用D-D核反应对氘在钯中沉积行为的研究[J]. 核技术, 2017,40(2):020201

Houjun HE, Xiaohui XU, Yongkai LU, et al. Study of deposition behavior of deuterium in palladium using D-D nuclear reaction[J]. Nuclear techniques, 2017, 40(2): 020201
何厚军, 徐晓辉, 路咏凯, 等. 利用D-D核反应对氘在钯中沉积行为的研究[J]. 核技术, 2017,40(2):020201 DOI： 10.11889/j.0253-3219.2017.hjs.40.020201.

Houjun HE, Xiaohui XU, Yongkai LU, et al. Study of deposition behavior of deuterium in palladium using D-D nuclear reaction[J]. Nuclear techniques, 2017, 40(2): 020201 DOI： 10.11889/j.0253-3219.2017.hjs.40.020201.

摘要

氢同位素在钯中的沉积行为与它在钯靶中的溶解度、扩散速率以及缺陷的束缚有关。为研究氘离子在钯中的沉积行为，利用氘离子诱发D-D核反应的方法研究了氘在钯中的动态和静态浓度，并建立扩散模型对实验结果进行了分析。研究发现，除稳定束缚在缺陷中的氘之外，束流注入时动态氘浓度还包含自由扩散的氘以及非稳定束缚态氘；自由扩散的氘以及非稳定束缚态氘随着氘离子的注入而增加，当注入达到饱和后，这两部分氘浓度处于动态平衡状态，停束后将迅速减少直至消失；由于辐照损伤所造成的缺陷存在饱和值，稳定束缚在缺陷中的静态氘浓度为

=（0.42±0.03）%；结合模拟计算，发现钯的缺陷对氢同位素的吸附系数、解吸附系数及其比值

与材料损伤特性及氢同位素的注入方式有关。

Abstract

Background:

Palladium is a very important hydrogen storage material with high hydrogen absorption capacity. It also plays an important role in the separation process of hydrogen isotopes.

Purpose:

The aim is to study the deposition behavior of deuterium ions in palladium.

Methods:

The dynamic and static concentration of deuterium in palladium was studied by means of D-D nuclear reaction induced by deuterium ion. These data were analyzed with a diffusion model.

Results:

The dynamic deuterium consists of free diffusing deuterium

unsteadily trapped deuterium and steadily trapped deuterium. The concentration of free diffusing deuterium and unsteadily trapped deuterium were increased with deuterium ion implantation

and then reached dynamic balance state when the deuterium was saturated

and would disappear quickly when the beam stopped. While the static deuterium concentration steadily trapped in defects were

=(0.42±0.03)%

due to defects caused by radiation damage reached saturation.

Conclusion:

The deposition behavior of hydrogen isotopes and its adsorption/desorption coefficient in Pd were closely related to the damage characteristics of materials and hydrogen isotope injection method.

关键词

Keywords

references

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