金属水素化物の結晶化学
―タンタル水素化物を中心に―
1984 年 26 巻 3 号 p. 169-175
詳細
1984 年 26 巻 3 号 p. 169-175
Crystal structures of tantalum hydrides have been reviewed.The Ta-H system is characteristic of an interstitial alloy of hydrogen in bcc tantalum over a wide composition range. Hydrogen atoms in the interstitial sites become ordered at low temperatures and superstructures β1-Ta2H, β2-Ta2H, γ-Ta4H3 and δ-TaH are formed. These super-structures are closely related and transform to one another with hydrogen composition and temperature. The crystal structure of β1-Ta2H is discussed in detail on the basis of the recent neutron and X-ray diffraction work. [J. Cryst. Soc. Jpn. 26, 169 (1984) ] .
