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LFA 1000 – Steel foil – Thermal diffusivity

Steel – In-Plane – Thermal diffusivity

The investigated sample was a thin rolled steel foil with a thickness of 25 µm. Steel foil can for example be used for distance compensation in the adjustment of machines or in the production of magnet systems.

App. Nr. 02-007-012 LFA 1000 – Steel foil – Thermal diffusivity Steel – In-Plane – Thermal diffusivity

App. Nr. 02-007-012 LFA 1000 – Steel foil – Thermal diffusivity Steel – In-Plane – Thermal diffusivity

The extremely thin sample and the resulting extremely short measuring time push the LFA using the conventional vertical measurement method (Through-Plane) to its limits. To be able to measure such thin samples a horizontal measurement method with the in-plane adapter can be used.
The measurement of the thin steel foil was performed from room temperature to 1200 °C. From room temperature to 900 °C the thermal diffusivity increases with temperature. A rapid increase of the thermal diffusivity can be seen between 900 °C and 1000 °C. Here, the sample starts to melt which results in a drastic thermal diffusivity change. Further increase in temperature leads to a decrease in thermal diffusivity.

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LFA 1000

LFA 1000 – True LaserFlash Analyzer- The premium device
Temperature range -125 °C/ -100 °C bis 500 °C and RT up to 1250°C/ 1600°C/ 2000°C/ 2800°C

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