Design and construction of an adiabatic calorimeter for samples of less than 1 cm³ in the temperature range T = 15 K to T = 350 K

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• 作者：Brian E. Lang ; Juliana Boerio-Goates and Brian F. Woodfield
• 刊名：Journal of Chemical Thermodynamics
• 出版年：2006
• 期刊代码：123_00219614
• 类别：ch
• 出版时间：December 2006
• 卷：38
• 期：12
• 页码：1655-1663
• 文件大小：337 K

摘要

A small-scale adiabatic calorimeter has been constructed as part of a larger project to study the thermodynamics of nanomaterials and to facilitate heat capacity measurements on samples of insufficient quantity to run on our current large-scale adiabatic apparatus. This calorimeter is designed to measure the heat capacity of samples whose volume is less than 0.8 cm³ over a temperature range of T = 13 K to T = 350 K. Heat capacity results on copper, sapphire, and benzoic acid show the accuracy of the measurements to be better than ±0.4%for temperatures higher than T = 50 K. The reproducibility of these measurements is generally better than ±0.25%.