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Abstract: The author compares some currently existing method of measuring thermal conductivity and elaborates on a couple of newer methods. The pre-existing methods include hot wire and laser flash diffusivity, and the newly introduced methods are the modified how wire (MHW) and transient plane source (TPS) techniques. The necessary conditions (samples sizes, sample composition, test times, etc) are explained for the two newly introduced techniques. Experimental runs are carried out using the laser flash and TPS techniques on the same samples. It was found that the results from laser flash testing gave on average 20% higher results as compared to the TPS technique.

Reference: High Temperatures - High Pressures, 32, 3 (2000) 321-327

DOI: 10.1068/htwu289