Aging effects on thermodynamics in palladium–tritium system during tritium storage
Aging effects on thermodynamics in palladium–tritium system during tritium storage
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DOI：
10.1016/j.ijhydene.2008.01.015
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发表时间：
2008-04
影响因子：
7.2
通讯作者：
Hong-zhi Zhu;Xingdong Zhu;Huiyuan Chen;Yong-Jun Wei
中科院分区：
文献类型：
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作者：
Hong-zhi Zhu;Xingdong Zhu;Huiyuan Chen;Yong-Jun Wei
用PVT法测定了35、50、65和75 ℃下钯-氚系统的吸附和解吸压力-组成等温线，并对氚的贮存进行了长达3年的研究。结果表明，在时效过程中，合金的储存性能得到了很好的保持，P-c等温线只发生了很小的变化：平台压力降低，α单相区向更大的化学计量比移动。在35-75 ℃范围内，老化的氚化钯的吸收-脱附转变熵为30.1kJ/mol，未老化的为34.6kJ/mol，老化的氚化钯的吸收-脱附转变熵小于未老化的。滞后系数随温度的升高而减小。
The absorption and desorption pressure–composition isotherms in a palladium–tritium system have been experimentally measured at 35, 50, 65 and 75∘C using the PVT method for tritium storage up to 3 years. Results show that the storage properties are remarkably well preserved during aging, and only small modifications of P–c isotherms are observed: a decrease of plateau pressures and shifts of α single phase regions toward greater stoichiometries. At a temperature in the range 35–75∘C, absorption transition enthalpies of aged palladium tritide is 30.1kJ/mol, desorption transition enthalpies of the unaged is 34.6kJ/mol and absorption–desorption transition entropy of the aged palladium tritide is less than the unaged. The hysteresis coefficient decreases with the temperature.