Difference between revisions of "Thermal analysis"

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==Simultaneous thermal analysis==
==Simultaneous thermal analysis==


Simultaneous thermal analysis (STA) generally refers to the simultaneous application of thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) to one and the same sample in a single instrument. The test conditions are perfectly identical for the TGA and DSC signals. (Same atmosphere, gas flow rate, vapor pressure of the sample, heating rate, thermal contact to the sample crucible and sensor, radiation effect, etc.) The information gathered can even be enhanced by coupling the STA instrument to an evolved gas analyzer (EGA) like [[Fourier transform infrared spectroscopy]] (FTIR) or [[mass spectrometry]] (MS).
Simultaneous thermal analysis (STA) generally refers to the simultaneous application of thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) to one and the same sample in a single instrument. The test conditions are perfectly identical for the TGA and DSC signals. (Same atmosphere, gas flow rate, vapor pressure of the sample, heating rate, thermal contact to the sample crucible and sensor, radiation effect, etc.) The [[information]] gathered can even be enhanced by coupling the STA instrument to an evolved gas analyzer (EGA) like [[Fourier transform infrared spectroscopy]] (FTIR) or [[mass spectrometry]] (MS).

Revision as of 22:13, 13 September 2013

Thermal analysis is a branch of materials science where the properties of materials are studied as they change with temperature. Several methods are commonly used. These are distinguished from one another by the property which is measured:

Simultaneous thermal analysis

Simultaneous thermal analysis (STA) generally refers to the simultaneous application of thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) to one and the same sample in a single instrument. The test conditions are perfectly identical for the TGA and DSC signals. (Same atmosphere, gas flow rate, vapor pressure of the sample, heating rate, thermal contact to the sample crucible and sensor, radiation effect, etc.) The information gathered can even be enhanced by coupling the STA instrument to an evolved gas analyzer (EGA) like Fourier transform infrared spectroscopy (FTIR) or mass spectrometry (MS).