A numerical model of a two-pan heat flux DSC

被引：23

作者：

Dong, HB ^{[1
]}

Hunt, JD ^{[1
]}

机构：

[1] Univ Oxford, Dept Mat, Oxford OX1 3PH, England

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2001年 / 64卷 / 01期

关键词：

enthalpy; heat capacity; heat flux DSC; numerical modeling;

D O I：

10.1023/A:1011589013639

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A numerical program has been written to treat a heat-flux DSC. The model operates in two modes. In the first, experimental data is used as input and the enthalpy is calculated as a function of the sample temperature rather than the sample thermocouple temperature. This allows accurate enthalpies and transition temperatures to be obtained without smearing. In the second mode, enthalpy is used as an input and the responses of the calorimeter are calculated. Using this mode it is possible to investigate the effects of sample size, heating rate and alloy composition. Non-equilibrium effects and difficulty in nucleation can also be included.

引用

页码：167 / 176

页数：10

共 11 条

[1]

[Anonymous], HIGH TEMPERATURE SCI

[2] COMPUTER-SIMULATION OF THERMAL-ANALYSIS IN HEAT-FLUX DSC APPLIED TO METAL SOLIDIFICATION [J].