Anisotropy

Modern batteries (Li-ion) have drastically different thermal ­conductivity in different directions. Using a Hot Disk instrument makes it easy and accurate to ­measure these properties, in one single transient.

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Graphite Structures

Testing high-conducting graphite with the Hot Disk method is gives fast and accurate results.

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Liquids

For testing low-viscosity liquids (eg. Toluene and H2O), short measurement times are required to avoid convective heat transfer.

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Powders

Thermal Conductivity Measurements on powders depend on applied particle-particle pressure as well as interstitial gas pressure. Here we show how these factors affect the measurement results.

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Thermal Contact Resistance

Thermal contact resistance is always present in the interface between two solid surfaces. In this example, we look at contact resistance between layers in a stack of copper sheets and its impact on the apparent thermal conductivity across the layers.

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Thermoelectric

Testing small thermoelectric samples is easy with the Hot Disk technique. In this example two sets of hot-pressed Bi₂Te₃, p- and n-type, with diameter 12 mm and thickness 3.5 mm where analysed.

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