Steady State 1D Reference Bar

Steady State 1D Reference Bar

We employ a modified version of the ASTM D-5470 standard for measuring thermal conductivity and thermal contact resistance. The modification enables improve measurement reproducibility and accuracy when combined with high precision thermocouples. The technique is used to characterize the performance of advanced thermal interface materials. The pressure applied to the material can be controlled to understand the interplay between interface contact mechanics and thermal contact resistance.

Steady State 1D Reference Bar

 

References:

D.R. Thompson, S.R. Rao, and B.A. Cola. A Stepped-Bar Apparatus for Thermal Resistance Measurements. ASME Journal of Electronic Packaging, 135:041002, 2013. [pdf]