Testing the Thermal Conductivity of Silicone
On a recent visit to China we were asked to test the thermal conductivity of a silicone sample that was tested by an older modified hot wire technique. The silicone sample had a thermal conductivity value stamped on it of 0.192 W/mK. The sample was characterized with the TCi Thermal Conductivity Analyzer as pictured below.
Testing results are summarized as follows:
|Measurement||Thermal Conductivity (W/mK)|
Testing results agreed within 5% of the stated reference value for the standard in agreeing with the general accuracy specification for the device of <5%. Similarly, multiple measurements taken fell within the TCi's stated precision for the device of <1%. As the sample was over 15 years old some of the difference may be accounted for by ageing of the material.