Abstract
DIFFERENTIAL thermal analysis (DTA) has been used extensively to study phase changes in pure materials, phase equilibria in multicomponent systems, chemical reactions, and so on1. In this technique the sample and a suitable reference material are placed in an oven which is heated (or cooled) at a constant rate. When the temperature difference between sample and reference is measured and displayed on a suitable recorder as a function of time or temperature, phase changes or other energetic processes in the sample result in peaks in the thermogram. The determination and significance of peak area have been discussed at length in the literature, but the question of peak shape has been largely ignored.
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References
Differential Thermal Analysis (edit. by Mackenzie, R. C.) (Academic Press, London, 1970).
Robinson, P. M., Rossell, H. J., and Scott, H. G., Mol. Cryst. Liquid Cryst., 10, 61 (1970).
Robinson, P. M., Rossell, H. J., Scott, H. G., and Legge, C., Mol. Cryst. Liquid Cryst., 11, 105 (1970).
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ROBINSON, P., SCOTT, H. Interpretation of Anomalous Peak Shape in Differential Thermal Analysis. Nature Physical Science 238, 14–15 (1972). https://doi.org/10.1038/physci238014a0
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DOI: https://doi.org/10.1038/physci238014a0
