In order to improve the corrosion resistance of aluminosilicate refractories by molten aluminum, alkaline fluoride NaF and cryolite Na3AlF6 powders were studied. Both physical and chemical properties are known to influence wetting and corrosion behavior. This paper devoted to determine the influence of alkaline fluoride and cryolite added to andalusite based castable on the reaction with a...

On the basis of RO–Al2O3–SiO2 system, radiotransparent ceramic materials cordierite, celsian, and anorthite composition, which have low dielectric characteristics, are obtained. These requirements met by one main phases BaO–Al2O3–SiO2 system – celsian (BaAl2Si2O8), melting point is 1740 °C, beginning active phase formation occurs at a processing temperature 1300 as well SrO–Al2O3–SiO2 slavsonit...