Papers by Keyword: Neon

Abstract: Today, recycling industrial waste plays a major role in our society. Waste is used as additive in the production of a certain number of products. It enables to reduce the costing price per piece and to enhance some of the properties of the material, and to reduce pollution problems. To meet the various criteria, and manufacturing requirements of contemporary ceramic tile and bring a solution to our environment, an addition of waste glass from lamps public lighting and neon (cullet) is incorporated in various ceramic masse for substituted a feldspar. A comparative study is made between the properties obtained with each type of waste on the one hand and the other with the properties of tile produced in the industry. It was found that the tiles made with waste glass lighting lamps offer higher mechanical strength than that obtained with the feldspar and a good agreement between the shard - enamel. Although the value of strength obtained with the waste of neon is lower than that obtained with the first type of glass. The latter always remains higher than that of industrial value.

Abstract: The dielectric barriers discharges or silent discharges had knew these last years a great progress, particularly in the area of ultraviolet light production, which produced by Xe2* excimer molecules. This new application led to the realization of the nonpolluting excimer lamps. In this work we develop a one-dimensional model of sheath coupled to a kinetic model in NeXe mixture. Calculations were done for sixteen chemicals species in xenon concentration of 10% and under pressure of 400 torr. The results illustrate the spatiotemporal evolution of the charged particles and neutral species as well as the variations of the electric parameters of the lamp during the first pulse discharge.

Abstract: In the present work, we report on the effects of the implantation temperature on the formation of bubbles and extended defects in Ne+-implanted Si(001) substrates. The implantations were performed at 50 keV to a fluence of 5x1016 cm-2, for distinct implantation temperatures within the 250°C≤Ti≤800°C interval. The samples are investigated using a combination of cross-sectional and plan-view Transmission Electron Microscopy (TEM) observations and Grazing Incidence Small-Angle X-ray Scattering (GISAXS)measurements. In comparison with similar He implants, we demonstrate that the Ne implants can lead to the formation of a much denser bubble system.