Linear thermal expansion of solids with rod dilatometer

Thermal testingThermal testing

A dilatometer can be used to determine the linear thermal expansion of a material as a function of temperature. The temperature range of the measurement is from 25 °C to 1600 °C , but there is also an option to test in cryogenic atmosphere, which ranges from -175 °C to 300 °C. The typical heating rate is 3 °C/min. As a result from this measurement you will get the coefficient of thermal expansion and the absolute change in sample length both as a function of temperature. The testing can be done in various atmospheres, such as air, Argon, CO2, N2 and O2.

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
Standard
ASTM E228
Method expert
0

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