Thermal Diffusivity by Holometrix (Single Point)


Test ID

T-311

Description

The Holometrix microflash 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.

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