This article aimed to compare the effects of casting processes and heat treatments on the thermal conductivities of the Al-10 wt% Si-0.6 wt% Cu-0.9 wt% Fe-0.7 wt% Zn aluminum alloy by using the gravity-casting and die-casting processes. The thermal conductivities were measured using an thermal analyzer which operates using the transient plane source (TPS) technique. From the TPS technique, it was observed that that the gravity-cast materials achieved a higher ...
The multi-component quaternary materials of the Se78-xTe20Sn2Bix (x = 0, 2, 4, 6) chalcogenide glasses system were synthesized with varying bismuth (Bi) composition by using a melt quenching technique. The thermal transport properties (effective thermal conductivity, diffusivity, and specific heat per unit volume) of the glasses were determined using the transient plane source (TPS) technique at room temperature. The TPS measurements found ...
Measurements were carried out to determine the electrical resistivity, thermal conductivity and Seebeck coefficients of a series of Fe-doped misfit-layered oxides (Ca3Co(4-x)Fe(x)O(9+delta) (x=0, 0.05, 0.1, and 0.2)). The thermal conductivity experiments were carried out using a Thermal Constants Analyzer via the TPS technique. XRD was also used to characterize the Fe-doped oxides. Overall, the transport properties of the Fe-doped oxides were studied and it was found that ...
Two calcium silicate boards of different densities, porosities and pore size were analyzed for their thermal properties, specifically thermal conductivity. The boards were heated from room temperature to 400°C and the thermal conductivity was monitored during this time. A separate experiment 'aged' the boards first by heating at 1000°C for 4 hours before testing the thermal conductivity from room temperature to 400°C once again. The experimental results were compared with three ...
