Simultaneous Thermal Analysis (STA) is a thermoanalytical technique which simultaneously measures two or more thermal properties on a single sample. Generally, this refers to the simultaneous recording of mass changes and caloric data in the sample; i.e., the combination of thermogravimetry (TGA) and differential thermal analysis (DTA) or differential scanning calorimetry (DSC).
During the measurement, the sample is subjected to a freely selectable temperature program under a defined atmosphere. By simultaneously recording mass changes and caloric data on exactly the same sample and under identical conditions, the measuring time is decreased (by half), among other things. Another significant advantage is that uncertainties resulting from possible differences in sample preparation and the use of different instruments (TGA, DSC) can be ruled out. By employing an STA, the comparability of the characteristic temperatures obtained by means of TGA and DSC measurements is guaranteed. For inhomogeneous sample materials, problems due to differing sample compositions for TGA and DSC measurements can thus be eliminated.
The advantages are obvious: The test conditions are perfectly identical for the TGA and DSC signals (same atmosphere, gas flow rate,vapor pressure on the sample, heating rate, thermal contact to the sample crucible and sensor, radiation effect, etc.).
Furthermore, it improves sample throughput as more information is gathered from each test run.
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- Organic Contamination of a Silicon Wafer
- Phase Transitions of Glass Wool
- Phase Transitions of Gypsum and Quartz Sand
- Reduction of Manganese Oxide
- Sublimation of an OEL Layer
- Temperature-Modulated DSC Measurement of a Mineral Fiber Insulation
- Thermal Stability of Lithium Cobolt Oxide Cathode