This study experiments with the new and improved transient plane source (TPS) method for measuring the thermal conductivity of thin-films. The existing TPS method for measuring thin-films experiences the effect of thermal contact resistance. In this experiment, a thermal constants analyzer is used to investigate the precision and efficacy of the new method. This modified method looks to resolve the issues surrounding contact resistance, with eliminating the need for reference ...
Researchers at the Chalmers University of Technology used the transient plane source (TPS) method to propose a technique for testing layered materials of a low conductive core, coated in a highly conductive thin film. The accuracy of the method to evaluate isotropic materials was tested prior to testing the ability of the TPS to analyze layered materials. Value differences were noted between the simulated and the measured temperature increases of ...
Rubber carbon black (CB)/rubbery epoxy (RE) and CB/silicone composites with different types, loadings, and silane functionalization of carbon black were prepared. These composites were investigated for their electrical conductivities, and their mechanical properties. The thermal conductivity of each composite was also determined using a thermal constants analyzer. It was determined that the incorporation of carbon black into the composites increased the thermal conductivity in all of the samples. ...
Expanded graphite (EG) was added to lauric acid (LA)-stearic acid (SA) phase change materials to enhance their thermal conductivities. The PCMs were prepared in varying mass fractions of LA and SA, and 10 wt. % of EG was added. The phase change temperature and phase change enthalpy were determined by DSC, while the thermal conductivities, and thermal stabilities of the PCMs were determined by the transient plane source and thermogravimetric analysis, ...
Low-temperature expandable graphite (LTEG) was blended into low-density polyethylene (LDPE) to prepare composite materials with an enhanced thermal conductivity in comparison to pure LDPE. The thermal conductivity of a composite containing 60 wt. % LTEG was found to be increased by a factor of 23 in comparison to the pure polymer. The LTEG was also found to decrease the melting temperature and degree of crystallinity of the LDPE, and the composites were also ...
