Category: Transient Plane Source
Author(s): Nancy Mathis
Keywords: Accurate Measurement of Thermal Conductivity, density, Hot Wire Method, Hot Wire Method (HW), HW, Laser Flash Diffusivity, Laser Flash Diffusivity (LFT), LFT, MHW, Modified Hot Wire, Modified Hot Wire (MHW) Technique, specific heat capacity, Technique, Thermal Conductivity, Thermal Diffusivity, thermal effusivity, TPS Technique, Transient Plane Source, Transient plane source (TPS) method
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