Deuterium retention and release in tungsten co-deposited layers

被引：60

作者：

De Temmerman, G. ^{[1
]}

Doerner, R. P. ^{[2
]}

机构：

[1] EURATOM, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England

[2] Univ Calif San Diego, Energy Res Ctr, La Jolla, CA 92093 USA

来源：

JOURNAL OF NUCLEAR MATERIALS | 2009年 / 389卷 / 03期

基金：

英国工程与自然科学研究理事会;

关键词：

HYDROGEN ISOTOPE RETENTION; BLISTER FORMATION; FUEL RETENTION; RE-DEPOSITION; PLASMA; BERYLLIUM; DIVERTOR; ITER;

D O I：

10.1016/j.jnucmat.2009.03.028

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A systematic study of the influence of the deposition conditions on the deuterium retention in co-deposited tungsten layers formed both by magnetron sputtering and in the PISCES-B linear device has been carried out. Experimental parameters such as the tungsten deposition rate, the incident particle energy and the substrate temperature are shown to affect the level of deuterium retention in the layers. A decreased retention for increased substrate temperature and deposition rates, and an increased retention for increasing incident deuterium particle energy are observed. A scaling equation is proposed to describe the influence of the conditions during the co-deposition process (surface temperature, incident particle energy and deposition flux) on the deuterium retention. In addition, the desorption kinetics of deuterium has been studied by TDS. Two desorption stages at 473-573 K and at 1073 K have been observed. (C) 2009 Elsevier B.V. All rights reserved

引用

页码：479 / 483

页数：5

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