Thermal Diffusivity by Laser Flash (Single Point)
Test ID
T-311
Description
The laser flash apparatus uses a laser to fire a short pulse at the surface of a thin disk specimen at a specified temperature between ambient and 300°C. The heat transferred through the specimen results in a temperature rise on the opposite surface that is measured by an infrared detector. Analysis of this temperature change allows determination of thermal diffusivity.
Options
When combined with density and specific heat measurements, thermal diffusivity is used to calculate thermal conductivity for materials where the thermal conductivity can not be measured directly. Call to verify sample thickness.
Standards
- ASTM E1461
Data
Thermal Diffusivity v. Temperature. This data appears in Matereality as Thermal Diffusivity.
Replicates
Number of times this test is repeated: 1
Samples
3 discs (12.7mm diam.) [details]
Application
Thermal diffusivity is essential for heat transfer calculations.
