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	2018
形態種別	論文
査読	査読あり
標題	Systematic study of He induced nano-fiber formation of W and other period 6 transition metals
執筆形態	共著・編著（代表編著を除く）
掲載誌名	Journal of Nuclear Materials
掲載区分	国外
出版社・発行元	Elsevier B.V.
巻・号・頁	511,pp.605-609
担当区分	筆頭著者
著者・共著者	Y. Ueda,N. Yamashita,K. Omori,H. T. Lee,K. Ibano,A. M. Ito
概要	Systematic study of nano-fiber formation by He plasma irradiation on period 6 metals (Ta, W, Re, Ir, Pt, Au) was performed. Under the same He plasma irradiation conditions (flux, fluence, and ion energy), long nano-fibers were produced on W, Re, and Ir among which the nano-fibers on Re had the highest growth rate. On the other hand, Ta, Pt and Au did not show long nano-fibers (slight nano-fiber formation was seen on Pt). The transition metals in favor of the nano-fiber formation are stiff materials with high Young's and shear moduli. In addition, stiff materials tend to have high He binding energies with He clusters at vacancies. It is speculated that stiffness could contribute to generation of high stress field and high pressure He bubble formation, which are possibly important for nano-fiber formation.
DOI	10.1016/j.jnucmat.2018.04.024
ISSN	0022-3115