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| Untersuchte Arbeit: Seite: 66, Zeilen: 17 ff. |
Quelle: Instrument Specialists 2012 Seite(n): 0, Zeilen: online |
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| 5.5.2. Thermal gravimetric analysis (TGA)
Thermogravimetric Analysis (TGA) is a type of testing that is performed on samples to determine the amount and rate of change in the weight of a material as a function of temperature or time in a controlled atmosphere. Measurements are used primarily to determine the composition of materials and to predict their thermal stability at temperatures up to 1000°C. The technique can characterize materials that exhibit weight loss or gain due to decomposition, dehydration, or oxidation. TGA is commonly employed in research and testing to determine characteristics of materials such as polymers, in order to determine: degradation temperatures, thermal stability of material, oxidative stability of material, moisture and volatiles content of materials, the level of inorganic and organic components in materials, decomposition points of explosives, and solvent residues. It is also often used to estimate the corrosion kinetics in high temperature oxidation. |
Thermogravimetric analysis or thermal gravimetric analysis (TGA) is a type of testing that is performed on samples to determine changes in weight in relation to change in temperature.
[...] TGA is commonly employed in research and testing to determine characteristics of materials such as polymers, to determine degradation temperatures, absorbed moisture content of materials, the level of inorganic and organic components in materials, decomposition points of explosives, and solvent residues. [...] Simultaneous TGA-DTA/DSC measures both heat flow and weight changes (TGA) in a material as a function of temperature or time in a controlled atmosphere. |
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