Nanocomposites are formed by combining conducting polymers and inorganic nanoparticles. In this study, nanocomposites of Ni-Zn ferrite were tested to determine the variation in their thermal properties. A thermal analyzer was used to measure thermal conductivity and thermal diffusivity of the composites using the transient plane source (TPS) method over a temperature range of 30 to 140°C. Results indicate that thermal conductivity and thermal diffusivity of Ni-Zn ferrites in a copolymer ...
Using the transient plane source (TPS) technique, simultaneous measurements of thermal conductivity and thermal diffusivity were taken from phenolformaldehyde (PF) composites, reinforced by pineapple leaf fiber. Testing was done on samples of varying weight percentages. Thermal conductivity of pure fiber was evaluated and compared with the thermal conductivity of the composite fiber....
Cast irons are materials with complex internal structures, exhibiting multiple changes in physical and mechanical properties due to graphite in their microstructures. In this study, various amounts of silicon alloys and ferrite were added to samples of lamellar, compacted, and spheroidal graphite cast irons to determine how this would affect their thermal conductivities. A thermal analyzer was used to measure thermal conductivities of the composites with the transient plane source (...
The Transient Plane Source method (TPS) simultaneously measures thermal conductivity and thermal diffusivity. This paper investigates the possibilities of using sensors, to record the thermal effusivity of a substrate. With the original method, the thermal effusivity of uniaxial, homogeneous materials in the through-plane direction can be estimated. Tests were performed to analyze the differences in single-sided vs. double-sided testing. For 1-dimensional samples, where heat flow is controlled along the sample, ...
The purpose of this study was to measure the thermal conductivity of cementitious Kaolite 1600 for its potential to replace the radioactive materials in ES-2 containers. A thermal constants analyzer measured the thermal conductivity of the Kaolite samples using the transient plane source (TPS) method. Results showed that despite different densities, the thermal conductivities of the samples were similar up to 100 °C. Similar to ceramics and other insulating materials, the thermal ...
