ThO_2的比热  

HEAT CAPACITY OF ThO 2

作　　者：彭石安[1] 

机构地区：[1]苏州铁道师范学院物理系

出　　处：《物理学报》1996年第9期1513-1520,共8页Acta Physica Sinica

摘　　要：ＴｈＯ２的比热Ｃｐ是其它用作核反应堆燃料的锕系二氧化物例如ＵＯ２ＰｕＯ２等的Ｃｐ中的声子部分．它的精确确定有助于弄清其它因素对锕系二氧化物Ｃｐ的贡献．通过对ＴｈＯ２的Ｃｐ的研究发展了一个可用于研究其它固体Ｃｐ的普遍方法．在这种方法里，对一种固体的三种不同性质的实验测量———比热、热膨胀和ＤｅｂｙｅＷａｌｅｒ因子可以带到一块进行比较以相互佐证．The heat capacity C p of ThO 2 can be calculated as the phonon part of C p for other actinide dioxides used as fuel in nuclear reactors. Precise determination of the phonon part of C p of actinide dioxides is helpful to find out the contributions of other factores to C p. In this paper we have, through studying the heat capacity of ThO 2, developed a general method applicable to the study of C p of other solids. In the developed method the three type different experimental measurements made on a solid heat capacity, thermal expansion and Debye Waller factor can be brought together for comparison.The application of this method to the study of C p of ThO 2 has enabled us to propose a better description of C p of ThO 2 than the generally accepted expression.

关 键 词：二氧化钍 比热 反应堆燃料 

分 类 号：TL243[核科学技术—核燃料循环与材料] O414.1[理学—理论物理]