Glass components recovered from dismantled cathode ray tubes (CRTs) are very difficult to recycle or reuse and so other methods of using these glass components must be found to prevent environmental problems. Through the mixing of the recovered glass with calcium carbonate powder, glass foams can be synthesized that have applications in thermal and acoustic insulation. The various effects on the sintering process such as heating rate and holding time ...
Five different glasses were created in the present study with varying compositional ratios in a CaO-B2O2-SiO2 (CBS) System and the thermal and dielectric properties of these glasses were studied. A glass was found that had high thermal conductivity and promising dielectric properties, with a low sintering temperature that allows for the addition of fillers to adjust thermal and dielectric properties further....
In the building and construction industry today, weather resistant and flame resistant materials have become fundamental. As such, silicone coated materials have been intensively researched, as they increase a given materials resistivity to heat and flames. Due to complications and time constraints when testing coating technologies in a lab setting, more enforcement has been placed on numerical methods. Based on stitching patterns, geometry models of the material and heat transfer ...
In mold fluxes, fluorine is generally added to reduce viscosity and solidification. The fluorine however, tends to cause corrosion of the casting machine and leads to environmental pollution. To potentially rid this design of these issues, researchers in this study examined the Fluorine-free mold flux, in a specific glass system. Properties such as viscosity, thermal conductivity and crystallization behaviour were all analyzed and compared to the values for the commercial ...
The thermal conductivity and thermal diffusivity of SRP (sisal-reinforced polyethylene), GRP (glass-reinforced polyethylene), and GSRP (sisal/glass hybrid fibre-reinforced polyethylene) were tested from 120 to 350K. Results showed variances in thermal conductivity values with varying temperatures in materials containing different orientations of sisal fibres. Due to the anisotropic nature of the SRP fibre, there is a difference in the thermal conductivity readings from the parallel to the perpendicular direction. The GRP ...
