Deformation of sample pans used in differential scanning calorimeters

作者：Malik S A; Wang L; Paget M A; Biddlestone F; Fernando G F^*

来源：Journal of Thermal Analysis and Calorimetry, 2012, 109(1): 495-499.

DOI：10.1007/s10973-011-1748-6

• Differential scanning calorimetry
• Thermomechanical analysis
• Annealing
• DSC pans
• Optical TMA

The authors have previously reported on an optical technique to enable the simultaneous and non-contact acquisition of spectral, thermal and physical information of a sample in a differential scanning calorimeter (DSC). This was achieved using a simple bifurcated fibre optic probe to link the DSC to a conventional Fourier transform infrared spectrometer and an optical spectrum analyser. The fibre optic probe was located over the sample and reference compartments of the DSC. In the current study, a series of experiments were designed to investigate the stability of DSC pans during heating from ambient to 230 A degrees C. During the first heating cycle, the base of the aluminium pans used in these experiments was found to deform in a non-linear manner. The deformation characteristics of pans manufactured from copper and steel were also investigated. Annealing the aluminium pans was found to improve significantly the deformation or expansion characteristics.

• 出版日期2012-7