Study on separation method of overlapped peaks in differential thermal analysis with computer simulation

With the computer simulations, it has been found that in Differential Therm al Analysis (DTA) the overlapped peaks do not satisfy the linear overlappin g principle, and the relationship between the overlapped peaks is rather co mplex that is a function of sample thermal conductivity, specific heat, qua ntity and latent heats, etc. If the first point where the two peaks begin t o overlap is at the posterior half of the first peak curve and the two over lapped peaks can be identified by two different peaks, from the curve of ov erlapped peaks we can know that the temperature corresponding to the first point deviating from the sample's first phase change curve is the sample's second phase change temperature.