Effects of Particle Size Range in the Differential Thermal Analysis of Powders

Abstract

ALTHOUGH the technique of differential thermal analysis is widely used in the study of materials in powdered form, there, seems to be considerable uncertainty as to whether the particle size characteristics of the material influence the thermograms obtained. The general consensus of opinion would seem to be that the mean particle size might have some effect ; the possible effect of the spread of particle size in the sample appears, however, scarcely to have been considered.