| 用DSC法测量U0.77Zr0.23合金的热容 |
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| 引用本文： | 李永静 李文Dan.用DSC法测量U0.77Zr0.23合金的热容[J].原子能科学技术,1996,30(4):312-318. |
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| 作者姓名： | 李永静 李文Dan |
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| 作者单位： | 中国原子能科学研究院 |
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| 摘 要： | 用示差扫描量热法（简称ＤＳＣ法）测量了Ｕ０．７７Ｚｒ０．２３合金（ｗ（Ｚｒ）＝１０％）在３００￣１０１０Ｋ温度范围内的热容。在８５０Ｋ以下的摩尔热容合理地低于Ｔ．Ｍａｔｓｕｉ测得的Ｕ０．８０Ｚｒ０．２０的摩尔热容，而与由Ｙ．Ｔａｋａｈａｓｈｉ的数据经内插得到的Ｕ０．７７Ｚｒ０．２３的摩尔热容基本一致。热容曲线示出了４个相变峰，对应的４个相变焓分别为５８３、１１６、２８１０和２６３Ｊ／ｍｏｌ。它们不
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| 关 键 词： | 快堆燃料 热容 相变焓 相变温度 UZr合金 DSC法 |
HEAT CAPACITY MEASUREMENT FOR U_(0.77)Zr_(0.23) ALLOY BY DSC |
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| Li Yongjing, Li Wendan.HEAT CAPACITY MEASUREMENT FOR U_(0.77)Zr_(0.23) ALLOY BY DSC[J].Atomic Energy Science and Technology,1996,30(4):312-318. |
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| Authors: | Li Yongjing Li Wendan |
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| Abstract: | Heat capacity of U0.77Zr0.23 alloy is measured by differential scanning calorimetry (DSC) inthe temperture r4nge from 300 to 1010 K. Bolow 850 K, the molar heat capacities are reasonablylOwer than the values Of U0.80Zr0.20 alloy measured by T. Matsui, and.are in consistent with thedata of U0.77Zr0.23 alloy by interpolation from the experimental data measured by Y. Takahashi.The molar heat capacity curve shows four transition peaks. The correSponding four transition mathalpy which are 583, 116, 2810 and 263 J/MOI respectively are all different from the values masured by T. Matsui, but Are in good agreement with the results obtained by drop calorimetry. Thefour transition temperatures are in consistent with the values in references. |
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| Keywords: | U_(0 77)Zr_(0 23) Heat capacity Phase transition enthalpy Phase transition temperature |
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