This website uses cookies so that we can provide you with the best user experience possible. Cookie information is stored in your browser and performs functions such as recognising you when you return to our website and helping our team to understand which sections of the website you find most interesting and useful.
Precise determination of thermal expansion behaviour of solids, liquids, powders and pastes for a variety of applications
- Partner:UK Atomic Energy Authority
- Facility:Materials Research Facility (MRF)
Or call us now on 0161 275 8382
Detailed Description
Dilatometry measures dimensional changes in a material as a function of temperature in a controlled atmosphere. This allows for the obtaining of the coefficient of thermal expansion of a material. The vertical push-rod design benefits from no friction on expansion, with guaranteed push-rod contact. Both dilatometers at the UKAEA-MRF are dual push-rod systems, which allow for direct comparison of a sample with unknown thermal properties to a well characterised reference sample, and both are subjected to exactly the same environment. The two separate instruments have furnaces for operation at -100-500°C and RT- 2000°C. These are fully automated and can be controlled remotely.
Uses/Applications
Determining the coefficient of thermal expansion of a material. Investigating the effects of annealing on thermal expansion.
Linseis L75V (2x)
Temperature range
-100-500°C / RT-2000°C
Resolution
0.1nm
Measurement range
+/-2500µm
CTE accuracy
+/-0.5%
CTE reproducibility
+/-100nm (for fused silica)
Atmospheres
Inert / Oxidising / Reducing / vacuum
Thermal diffusivity
+/-3% / +/-2%
Specific Heat
+/-5% / +/-3%
Data acquisition rate
2MHz
Temperature accuracy
+/-0.5°C or 0.25%
Standard
ASTM E831 / ASTM D696