Quantitative Thermal Analysis VII. Basic elements of thermal curves in the context of ingradient theory

Abstract

The supposition of even temperature distribution in the sample mass (‘ingradient’ approach) led to mathematical expressions describing the basic quantitative elements of thermal curves: the transformation duration, the peak height, the initial and final section peak areas and the total area. The simplest expression is that for the total peak area: S=(R²Hd/2k₁)1nR₁/R, where R, H, d, k₁and R₁are the radius, the specific thermal effect of sample transformation, the gravimetric density and the outer layer encircling the sample, respectively. For the other quantitative elements, the dependences are far more complicated, depending on the duration and variants of the transformation process.