Useful method to analyze data on overall transformation kinetics

We propose an easy and reliable method for analyzing data from DTA and DSC studies of crystallization at constant heating rate, q. It is demonstrated that important information can be obtained in log-log coordinates of plot of heating rate, logq, against peak temperature, logTp. The slope of the corresponding straight line is proportional to the dimensionless activation energy ℰ. It is demonstrated that there is a simple relation between the characteristic crystallization time τ, the heating rate q and the peak temperature Tp. •The activation energy can be determined from the slope of the dependence of heating rate, log q, against the temperature, log Tp, at which the crystallization rate is maximal.•If at a given reference temperature Tr the characteristic time is τr at any other temperature T the characteristic time is τT=τrTTrε•It is demonstrated that the product Tpqτp of the peak temperature Tp, the heating rate, q, and the characteristic crystallization time τp.