This article studied the effect of the addition of TiO2 nanoinclusions on bulk Ba8Ga16Ge30clathrate. Both thermal conductivity and electrical resistivity were investigated. Results produced by the TPS system revealed that thermal conductivity decreased as the amount of nanoinclusions increased. The authors concluded that a shift in the peak value of the Seebeck coefficient had occurred. Electrical resistivity increased with the addition....
Methane Hydrates have the potential to be a significant energy source as they contain large amounts of methane gas. Large reserves exist in deep sea sediments, and work is being performed to better understand physical characteristics of these sediments. In this article, artificial methane hydrate sediments were created by mixing synthesized hydrate powder with "Toyoura Standard Sand". The thermal conductivity of these samples were then investigated at both atmospheric and ...
This study measures the thermal conductivity, thermal diffusivity, and specific heat of selenium-tellurium-tin alloys at room temperature. Selenium-tin alloys have high photosensitivity, higher crystallization temperature and smaller aging effects then just selenium. However, without an extra element to act as a chemical modifier limited reversibility and low glass transmission are issues. The researchers hope that the addition of tin will produce an improved alloy. Investigations showed that there were structural ...
This study used a two part process to create a system that would predict the thermal conductivity of insulated building materials containing plant materials. A finite-discrete element method was used to predict the thermal conductivity of a packed bed of sunflower pith, while a discrete element method was used to predict how aggregates would fill a volume element. These were used to predict the thermal conductivity of the heterogeneous volume. ...
This study aimed to develop a new technique for thermal management in high powered gallium nitride (GaN) electronic and optoelectronic devices. The researchers integrated GaN with diamond through the process of depositing high-quality nanocrystalline diamond films directly onto the GaN material at temperatures between 450-500°C. Highly controlled growth conditions for the diamond ensured that it was of good quality. Thermal conductivity measurements using the laser flash method were performed ...
