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	2018/06
形態種別	論文
査読	査読あり
標題	Micro- and macro- elastic properties of tungsten fiber-reinforced tungsten composites probed by nano-indentation and laser ultrasonics
執筆形態	共著・編著（代表編著を除く）
掲載誌名	Nuclear Materials and Energy
掲載区分	国外
巻・号・頁	19,pp.262-266
国際共著	国際共著
著者・共著者	H. T. Lee,S. Ando,J. W. Coenen,Y. Mao,R. Kasada,J. Riesch,Y. Ueda
概要	The elastic properties of tungsten fiber-reinforced tungsten composites (W f /W) were characterized on the micro- and macro- scale by combined nano-indentation and laser ultrasonic measurements, respectively. W f /W composite materials are currently being developed as advanced tungsten (W) plasma facing materials for fusion devices. They possess pseudo-ductility and can overcome some of the limitations caused by the inherent brittleness of pure-W at lower temperatures. The Young's modulus was determined by nano-indentation hardness measurements of the W-matrix and W-fibers separately. The values were combined by simple rule of mixture, and compared to bulk values obtained from laser ultrasonics measurements. The results show that the simple rule of mixtures is valid up to 50% fiber volume fractions.
DOI	10.1016/j.nme.2019.03.001
ISSN	/2352-1791