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首页> 外文期刊>Thermochimica Acta: An International Journal Concerned with the Broader Aspects of Thermochemistry and Its Applications to Chemical Problems >INFLUENCE OF THE THERMAL CONDUCTIVITY ON THE C-P-DETERMINATION BY DYNAMIC METHODS
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INFLUENCE OF THE THERMAL CONDUCTIVITY ON THE C-P-DETERMINATION BY DYNAMIC METHODS

机译：热导率对动力学方法C-P测定的影响

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Modulated DSC, Dynamic DSC and steady-state DSC are three frequently used methods to determine the heat capacity. This paper investigates how the C-p-values obtained by these methods are influenced by the different thermal conductivity of the material used for calibration and as sample. A simple mathematical model of the DSC-instrument is derived and the obtained C-p-values are compared for different operating conditions of the instrument and for different samples. Experiments with different samples are also performed and compared with the simulation results. The results clearly show that the temperature distribution in the sample puts a higher limit on the useful frequencies. Recommendations for operating conditions for accurate C-p measurements are given. (C) 1997 Elsevier Science B.V. [References: 6]
机译：调制DSC，动态DSC和稳态DSC是确定热容量的三种常用方法。本文研究了通过这些方法获得的C-p值如何受到用于校准和用作样品的材料不同导热系数的影响。推导了DSC仪器的简单数学模型，并比较了仪器不同操作条件和不同样品的C-p值。还进行了不同样品的实验，并将其与仿真结果进行了比较。结果清楚地表明，样品中的温度分布对有用频率设置了更高的限制。给出了用于精确C-p测量的工作条件的建议。 （C）1997 Elsevier Science B.V. [参考：6]

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