摘要
利用金属氢化物可以方便地对氢同位素氕、氘、氚进行泵输、转移、固态吸附贮存、功能薄膜制造等。目前应用较成熟的有铀[1]、钛[2]、锆钴合金[3]等材料。锆与钛是属于同一族的金属元素,也是一种吸氢密度很高的功能材料,目前国内外已有较多关于氢在锆中固溶[4]、扩散[5-6]等方面的报道,但有关锆吸氚性能方面的报道较少。．
The p-c-T curves and the relation between equilibrium pressure and temperature of tritium absorption and desorption from zirconium were measured in the temperature range of 450 ～700 ℃ . There are different changes of enthalpy and entropy when zirconium changes to different phases. The change of enthalpy in the phase of α plus δ is -106.5 kJ·mol-1 in the temperature range of 450～500 ℃, the changes of enthalpy in the first and second plateau are -85.9 and -170.2 kJ·mol-1, respectively, in the temperature range of 600～700 ℃. The corresponding changes of entropy are -72.6, -38.3 and -144.9 J·K -1·mol -1, respectively. There are obvious lagging effects when zirconium desorbs tritium.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2010年第9期1707-1710,共4页
Chinese Journal of Inorganic Chemistry
基金
国家自然科学基金(No50871106)资助项目
关键词
锆
氚
P-C-T曲线
热力学参数
zirconium
tritium
p-c-T curve
thermodynamic parameters
