Linear thermal expansion of solids with a rod dilatometer

A dilatometer is used to determine the linear thermal expansion of a material as a function of temperature.

The temperature range of the measurement is generally between 25 °C and 1,600 °C. There is also an option to perform the test in a cryogenic atmosphere, which ranges from -175 °C to 300 °C. The typical heating rate is 3 °C/min.

As a result of the measurement, you will get the coefficient of thermal expansion (CTE) and the absolute change in sample length, both as a function of temperature. The testing can be performed in various atmospheres, including air, argon, CO₂, N₂, and O₂.

Please contact us to get a quote. The price will depend on the testing conditions, so please specify them as precisely as possible.

Suitable sample matrices
Metals and ceramics
Minimum sample amount
1/2", 1" or 2" specimen length. Maximum diameter 5/8".
Typical turnaround time
3 weeks after receiving the samples
Quality system
Measurlabs validated method
Method expert
Ville Roininen

Questions? We're happy to help.

Questions? We're happy to help.

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Have questions or need help? Email us at or call +358 50 336 6128.