著者

亀川 厚則 岡田 益男

出版者

日本高圧力学会

雑誌

高圧力の科学と技術 (ISSN:0917639X)

巻号頁・発行日

vol.17, no.2, pp.173-179, 2007 (Released:2007-07-06)

参考文献数

48

被引用文献数

10 14

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First of all, hydrogen energy related government budgets in Japan, USA and EU were summarized. Among a number of required technology to introduce hydrogen society, the hydrogen storage technique was focused in this article. The technique is classified in three ways, such as pressurized hydrogen, liquid hydrogen and hydrogen storage medium tank. In each technique, the high pressure science and technology is important to materialize applications of hydrogen storage systems. In addition, the recent research of new hydrides prepared by autoclave synthesis and high-pressure work in solid-state was also mentioned.

著者

高橋 信明 杉本 諭 岡田 益男 本間 基文

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌A(基礎・材料・共通部門誌) (ISSN:03854205)

巻号頁・発行日

vol.113, no.4, pp.251-260, 1993

被引用文献数

1 6

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Present work describes the magnetic properties of Nd-Fe-B melt-spun ribbons which have lower Nd content than the Nd₂Fe₁₄B compound. The studied alloys were (1) Nd_xFe_94-xB₆, (2) (Fe₃B)_1-x-(Nd₂Fe₁₄B)_x and (3) Fe_1-x-(Nd₂Fe₁₄B)_x. The grain refinement were underwent by studying the conditions of annealing for crystallization. It results in disappearing noticeable knicks in the demagnetization curves, which is attributed to precipitations of &alpha;-Fe and Fe₃B phases. The Nd₈Fe₈₆B₆ melt-spun ribbon annealed at 650&deg;C for 30 min exhibits the highest (<i>BH</i>)_max of 126kJm^-3(15.8MGOe). The V addition is effective for improving the coercivity.