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The variability within the results presented from the guarded hot-plate (GHP) and guarded heat-flow meter (GHF) methods was determined. Multiple thermal properties of polymethyl methacrylate (PMMA) were analyzed to compare methods. These measurements are taken in the range of −70◦C and +80◦C. Providing reference data for PMMA is the main objective of this paper as well as quantifying the effects of thermal contact of the measuring instruments....
The transient plane source (TPS) technique has a wide range of applications because of its capability to test solids, liquids, powders, and anisotropic materials over a range of sizes. Thermal properties of thin films and coatings can also be characterized using the TPS method if the samples are placed between the sensor and a bulk background. To minimize errors with the TPS method, use identical materials on each side of ...
In this study, a modification to the transient hot-strip (THS) method demonstrated that the thermal properties of two different materials can be measured simultaneously when placed on either side of the hot-strip sensor. Three experiments tested samples of gabbro with a regular THS sensor, a wood sensor, and a fused quartz sensor, respectively. The accuracy of the results was better than 3% between each measurement. Despite a large difference in the ...
