Hydrogen absorption–desorption properties of UZr_0.29 alloy

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• 作者：Shuai ; Maobing ; Su ; Yongjun ; Wang ; Zhenhong ; Zhao ; Pengji ; Zou ; Juesheng ; Wu ; Sheng
• 关键词：H0400 ; U0100 ; Z0100 ; 81.05 ; 28.52
• 刊名：Journal of Nuclear Materials
• 出版年：2002
• 出版时间：March, 2002
• 年：2002
• 卷：301
• 期：2-3
• 页码：203-209
• 全文大小：507 K

文摘

Hydrogen absorption–desorption properties of the UZr_0.29 alloy and uranium metal were investigated in detail at hydrogen pressures as high as to 0.4 MPa and over the temperature range of 300–723 K. Both UZr_0.29 alloy and uranium metal showed similar hydrogen isotopic effect and hysteresis effect. UZr_0.29 alloy absorbed hydrogen (deuterium) up to 2.3H (2.18D) atoms per F.U. (formula unit) by only one-step reaction and hence each desorption isotherm had a single plateau over nearly the whole hydrogen composition range. The UZr_0.29 alloy showed a little lower dissociation pressure than that of pure uranium; however, it exhibited high durability against powdering upon hydrogenation and may have good heat conductivity. The UZr_0.29 hydride has the potentiality to substitute pure uranium hydride as a material for tritium treatment and storage.