ウエダ　ヨシオ   Ueda Yoshio   上田　良夫    所属   追手門学院大学  理工学部 電気電子工学科    職種   教授
言語種別	英語
発行・発表の年月	2014/04
形態種別	論文
査読	査読あり
標題	Deuterium retention in various toughened, fine-grained recrystallized tungsten materials under different irradiation conditions
執筆形態	共著・編著（代表編著を除く）
掲載誌名	PHYSICA SCRIPTA
掲載区分	国内
出版社・発行元	IOP PUBLISHING LTD
巻・号・頁	T159
著者・共著者	M. Oya,H. T. Lee,Y. Ohtsuka,Y. Ueda,H. Kurishita,M. Oyaidzu,T. Yamanishi
概要	Deuterium retention in two types of toughened, fine-grained recrystallized W (TFGR W-1.2 wt% titanium carbide (TiC) and TFGR W-3.3 wt% tantalum carbide (TaC)) was studied, compared to pure W. D plasma exposure was performed to a fluence of 1 x 10(26) D m(-2) at a temperature of 573 K, followed by retention measurement analysis by nuclear reaction analysis and thermal desorption spectroscopy (TDS). It is found that D retention in TFGR W is higher than that in pure W. This is because TFGR W has a high density of trapping sites with low trapping energy and dispersoid (TiC or TaC) may serve as additional trapping sites with high trapping energy. Different irradiation experiments (D ion beam implantation) were also conducted at sample temperatures of 473-873 K, followed by TDS. At higher sample temperature (>700 K), D retention in TFGR W-3.3 wt% TaC is lower than that in TFGR W-1.2 wt% TiC. This may be due to different types of dispersoids.
DOI	10.1088/0031-8949/2014/T159/014048
ISSN	0031-8949/1402-4896
Put Code(ORCID)	49208338
PermalinkURL	http://www.scopus.com/inward/record.url?eid=2-s2.0-84902213543&partnerID=MN8TOARS
researchmap用URL	http://orcid.org/0000-0002-7720-4023