Different concentrations of boron nitride (BN) were added to novolac resin in order to create a composite and modify the thermal conductivity which increased with increasing BN concentration. An instrument was used for the thermal conductivity measurements. Different size BN particles were also explored. The Maxwell-Eucken model was used to predict values which aligned well with experimental results....
As electronic devices become smaller, power densities increase and so do hotspot temperatures, leading to a need for materials that can exchange heat better. The materials that facilitate this heat exchange are called thermal interface materials (TIMs). Graphene has been shown to demonstrate superior thermal conductivity and a particular form called few-layer graphene (FLG) was used in this project. A novel TIM was created by the mixing of a silver ...
In this article, the transient plane source technique was used to determine the effect of iron, a flame retardant shape-stabilized phase change material (FSPCM), on the thermal conductivity of a sample of paraffin/high-density polyethylene (HDPE). With the results, it was determined that iron could be dispersed within the HDPE and paraffin samples, so as to improve the flame retardant efficiency. The results also concluded that the thermal conductivity of ...
This article evaluates the thermal conductivity of heat transfer nanofluids containing nickel coated single wall carbon nanotubes. The results concluded that with the introduction of a magnetic field, the thermal conductivity of the heat transfer nanofluid is improved. Researchers attribute this improved thermal conductivity to the ability of the nickel coated nanotubes to form aligned chains under the force of a magnetic field, allowing for better contact and ultimately a ...
The researchers in this paper were the first to report that the thermal conductivity of the heat transfer nanofluids has the ability to be enhanced by an external magnetic field. This is possible due to carbon nanotubes and magnetic-field-sensitive nanoparticles of Fe2O3. It was discovered that the Fe2O3 nanoparticles form chains when exposed to magnetic fields, which allows the nanotubes to connect. As the nanotubes connect, the thermal ...
