Module 4 : Thermal analysis

Lecture 22 : Differential Scanning Calorimetry

Differential scanning calorimetry:

Effect of sample weight:

The sample weight also affects the thermal properties significantly. Figure 22.04 shows the typical DSC curves taken at a constant heating rate for different mass of the samples.

It could be clearly seen that the onset of melting, peak point of melting and enthalpy undergo small variations when the sample mass is changed.


Figure 22.04: Typical DSC curves taken for different weighed samples.