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TMA (Thermomechanical Analysis) is a technique used to measure the dimensional changes of a material under varying temperatures. By heating or cooling the sample and recording its expansion or contraction, it helps determine thermal properties such as the coefficient of thermal expansion and glass transition temperature.
Thermomechanical Analysis (TMA) is a technique used to measure the dimensional changes of a material as a function of temperature, time, or applied force. It helps evaluate how materials expand, contract, or deform when subjected to thermal and mechanical stress.
TMA (Thermomechanical Analyzer) is an instrument used to measure the mechanical properties of materials as they undergo temperature changes. It operates by applying a constant force or displacement to a sample while monitoring its dimensional changes over a specified temperature range, allowing for the determination of thermal expansion coefficients and other thermal properties.
Usually from -150°C to 1000°C, depending on the instrument configuration.
Small specimens: typically <10 mm in length, with flat or cylindrical shapes. Sample preparation depends on material type.
Yes. Testing can be done under air, nitrogen, or argon to prevent oxidation or simulate application environments.
Testing is typically conducted according to: -ASTM E831 (CTE) -ASTM D696 (plastics) -ISO 11359 series
This picture shows a test result for a plastic material (MPPO) as it is heated up. The graph tracks how much the material expands with temperature. The lines are mostly flat until about 180°C, then they rise sharply, showing that the material starts to expand quickly at high temperatures. This means the material is stable up to 180°C, but above that, it softens and changes shape more easily.
