Category: Transient Plane Source
Author(s): A. Dawson, B. Hay, C. Allen, H. Lobo, J. Morikawa, L. Halldahl, M. Rides
Keywords: density, heat flux, intercomparison, laser flash, plastics, polymers, specific heat capacity, temperature wave analysis, Thermal Conductivity, Thermal Diffusivity, TPS, Transient Plane Source, Transient plane source (TPS) method
Abstract: Thermal conductivity and thermal diffusivity of two poly(methyl methacrylates) were measured using multiple methods; temperature wave analysis, laser flash, transient plane source, transient line-source probe, and heat flux meter. The main reasoning behind this study was to compare results between methods, to ensure repeatability among methods. Good agreement was shown among thermal conductivity and thermal diffusivity results between instruments, however the transient plane source method repeatedly yielded 6% higher results than each other method. The transient plane source system measures the bulk thermal conductivity of the material (in-plane and through-plane), and any instance of anisotropy can result in a higher value.
Reference: Polymer Testing, 28, 5 (2009) 480-489