Performing thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) simultaneously on a single sample with a single instrument is efficient and yields more information than separate tests using two different instruments. The STA 449 F5 Jupiter from NETZSCH is designed to do just that, along with a broad variety of measurement tasks at an attractive price-performance ratio.
The test conditions are identical for the TGA and DSC signals including gas atmosphere and flow rate, vapour pressure on the sample, experimental heating rate, and thermal contact to the sample crucible and sensor. Combining these two sets of data signals allows for differentiation between phase transformations and decomposition behaviours, distinguishing addition from condensation reactions, recognition of pyrolysis, oxidation, and combustion reactions, among other sample behaviours. The vacuum-tight instrument is designed for simplicity, customized specifically for the end-user’s application. Each instrument comes pre-configured as needed, including all of the hardware and software features that are required by high-temperature applications in the fields such as ceramics, metals, inorganics, and building materials.
The instrument comes with a silicon carbide furnace capable of routine operation to 1600°C. At the heart of the instrument is a top-loading, highly sensitive low-drift micro-balance. In combination with a rotating motorized furnace hoist, the design allows for the sample – and, if necessary, the sensor – to be changed easily and safely.
The system’s thermobalance covers a 35 gram measuring range while its sensitive DSC capability allows accurate measurement of heat flow and characterize energetic behaviours. TGA measurements are also possible on large or heavy samples. NETZSCH
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