氧化层对钛吸附与解吸氘的动力学影响研究(Ⅰ)——吸氘动力学  

Effects of Oxide Layer on Deuterium Absorption and Desorption Kinetics of Titanium(Ⅰ) ——Deuterium Absorption Kinetic

作　　者：刘文科[1] 曹小华[1] 彭述明[1] 龙兴贵[1] 杨本福[1] 李宏发[1] 颜登云[1] 王维笃[1] 程贵钧[1] 

机构地区：[1]中国工程物理研究院核物理与化学研究所,四川绵阳621900

出　　处：《原子能科学技术》2004年第5期419-423,共5页Atomic Energy Science and Technology

基　　金：中国工程物理研究院行业预研基金资助项目(20020536);中国工程物理研究院核物理与化学研究所科技创新基金资助项目(421040403)

摘　　要：应用反应速率分析方法,测定了钛片和表面有氧化层的钛片在恒容体系和475～680℃范围内吸氘反应的速率常数,得到钛片和400℃氧化5h和2h的钛片吸氘反应的表观活化能分别为(112±2)、(181±4)和(115±3)kJ/mol;钛表面氧化层越厚,表观活化能越大;氧化层具有阻氘性能。The deuterium absorption behavior of titanium and titanium with oxide layer in a constant volume system was investigated in the temperature range of 475 to 680 ℃. A method of the reaction rate analysis was used and examined for determining the rate constant. The activation energy values obtained by this analysis for absorption of titanium and titanium oxided for 2 and 5 h at the temperature of 400 ℃ are (112±2),(181±4) and (115±3) kJ/mol, respectively. Thicker the surface oxide layer of titanim is, (larger) the activation energy values are. The experimented results prove the oxide layer has the property of blocking deuterium.

关 键 词：钛片 速率常数 氧化层 表观活化能 动力学 反应速率 吸附 钛表面 影响研究 范围 

分 类 号：TL941.19[核科学技术—辐射防护及环境保护] O484.1[理学—固体物理]