Measurement of High Temperature Heat Content by Drop Calorimetry
Measurement of High Temperature Heat Content by Drop Calorimetry
复制标题
滴热法测量高温热含量
DOI：
10.11311/jscta1974.29.173
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发表时间：
2002
期刊：
影响因子：
--
通讯作者：
K. Itagaki
中科院分区：
文献类型：
--
作者：
K. Yamaguchi,;K. Itagaki
物质的高温热含量和热容的准确数据对于研究高温下的材料和工艺是有价值的。固体和液体在1000K以上的热含量和热容是用滴量热法实验测定的，通过使用现代测量和控制温度的技术，它的使用已经扩展到更高的温度。从炉体组件、测温装置、量热计、样品容器等方面阐述了滴法的一般要求。热容可以通过相对热含量的测量来确定。Shomate函数和准局部线性回归（QLLR）可以准确地从热容量中导出热容。介绍了热含量测量的几种应用。
Accurate data for high temperature heat contents and heat capacities of substances are valuable for the study of materials and processes at elevated temperature. The heat contents and heat capacities of solids and liquids above 1000K are determined experimentally by drop calorimetry and the use has been extended to higher temperatures by using modern techniques for measuring and controlling temperature. The general requirements for the drop method are described in terms of furnace assembly, temperature measurement, calorimeter and sample container. Heat capacities can be determined from relative heat content measurements. Shomate function and qusai-local linear regression (QLLR) are useful to accurately derive the heat capacities from the heat contents. Several applications of the heat content measurements are described.