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Thermal Property measurement capability:


  • Thermal expansion using push-rod dilatometry (RT to 700°C)

  • Thermal expansion using laser interferometry (RT to 1400°C)

  • Thermal diffusivity using the laser flash technique (RT to 2000°C)

  • Specific heat measurement by differential scanning calorimetry (-100°C to 1400°C)

  • Thermo-gravimetric analysis (RT to 1400°C)

The thermal property measurement facility in Walton House, is located in the Active Laboratory, allowing for the determination of the thermo-physical properties of non-active and radioactive material between sub-ambient temperatures and up to 2000°C (depending on the parameter being measured, see above).
In addition to the standard test procedures for thermal property measurement, the facility has the capability to measure the thermal conductivity of surface layers and coatings mounted on a substrate, using the laser flash diffusivity technique and bespoke analysis software.
This testing facility is supported by in-house machining facilities for active and non-active samples.  The location of the facility ensures that machining of samples is completed to the test facility requirements, reduces delivery time and ensures quality and component 


Example Projects:


  • ​Vignor Energy release and rate of release testing of active graphite using DSC specific heat measurement

  • Thermal expansion of ex-service steels using laser interferometry

  • Thermal expansions of polymers during push-rod dilatometry

  • Thermal conductivity measurement of thermal barrier coating on a steel substrate between RT and 1400°C

  • Thermal conductivity measurement of polymer coatings on a metal substrate at temperature in a steam environment and in vacuum

  • Thermal expansion of oxide and carbide layers

  • Specific heat measurement of metals and ceramics

  • Isotropic investigation of orientation effects on thermal conductivity in ex-service graphite

High Temperature Facility Alliance Members:

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EDF Energy
Imperial College London
Univesity of Oxford
The Open University
UK Atomic Energy Authority
National Nuclear Laboratory
The University of Manchester
Battery Local Modular Energy
University of Bristol
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