Deuterium retention and release behaviours of tungsten and deuterium co-deposited layers

doi:10.1016/j.jnucmat.2018.02.009

CORC > 兰州理工大学 > 兰州理工大学

	Deuterium retention and release behaviours of tungsten and deuterium co-deposited layers
	Qiao, L.1,2; Zhang, H. W.3; Xu, J.1; Chai, L. Q.1; Hu, M.1; Wang, P.1
刊名	JOURNAL OF NUCLEAR MATERIALS
	2018-04-15
卷号	502 页码:247-254
关键词	Deuterium retention Deuterium release Tungsten co-deposited layers Magnetron sputtering
ISSN号	0022-3115
DOI	10.1016/j.jnucmat.2018.02.009
英文摘要	Tungsten (W) layer deposited in argon and deuterium atmosphere by magnetron sputtering was used as a model system to study the deuterium (D) retention and release behavior in co-deposited W layer. After deposition several selected samples were exposed in deuterium plasma at 370 K with a flux of 4.0 x 10(21) D/(m(2) s) up to a fluence of 1.1 x 10(25) D/m(2). Structures of co-deposited W layers are investigated by field-emission scanning electron microscopy (FESEM) and X-ray diffraction (XRD), and the corresponding D retention and release behaviors are studied as functions of deposition and exposure parameters using thermal desorption spectroscopy (TDS). Two main D release peaks were detected from TDS spectra located near 600 and 800 K in these W and D co-deposited layers, and total deuterium retention increased linearly as a function of W layer's thickness. After deuterium plasma exposure, the total D retention amount in W layer increases significantly and D release peak shifts to lower temperature. Clearly, despite the high density of defects expected in co-deposited W layers, the initial deuterium retention before exposure to the deuterium plasma is low even for the samples with a W&D layer. But due to the high densities of defects, during the deuterium plasma exposure the deuterium retention increases faster for co-deposited layer than for the bulk W sample. (c) 2018 Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China[11475236]
WOS研究方向	Materials Science ; Nuclear Science & Technology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000427676700027
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/32696]
专题	兰州理工大学材料科学与工程学院
通讯作者	Wang, P.
作者单位	1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Gansu, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100080, Peoples R China 3.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Qiao, L.,Zhang, H. W.,Xu, J.,et al. Deuterium retention and release behaviours of tungsten and deuterium co-deposited layers[J]. JOURNAL OF NUCLEAR MATERIALS,2018,502:247-254.
APA	Qiao, L.,Zhang, H. W.,Xu, J.,Chai, L. Q.,Hu, M.,&Wang, P..(2018).Deuterium retention and release behaviours of tungsten and deuterium co-deposited layers.JOURNAL OF NUCLEAR MATERIALS,502,247-254.
MLA	Qiao, L.,et al."Deuterium retention and release behaviours of tungsten and deuterium co-deposited layers".JOURNAL OF NUCLEAR MATERIALS 502(2018):247-254.