Design and construction of a thermal conductivity system for low thermal conductivity materials

Ramon Martinez, Abhishek Singh & Eric Toberer
Modern day laser flash apparatuses can only measure the thermal conductivity of materials if the thermal conductivity (K) is between 0.1 and 100 W/mK. Our goal was to create a system that could relay reliable data for materials with an expanded thermal conductivity range down to 0.001 W/mK. To accomplish this, a more powerful laser flash was used in conjunction with a circuit designed to amplify the signal so that the thermal conductivity could be...
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