THE CORROSION RESISTANCE OF MULLITE-SILICONCARBIDE REFRACTORY COMPOSITES

Recycling of Coal Fly Ash for the Fabrication of Porous Mullite/Alumina Composites

Coal fly ash with the addition of Al₂O₃ was recycled to produce mullite/alumina composites and the camphene-based freeze casting technique was processed to develop a controlled porous structure with improved mechanical strength. Many rod-shaped mullite crystals, formed by the mullitization of coal fly ash in the presence of enough silicate, melt. After sintering at 1300-1500 °C with the initial...

Corrosion Barrier Development for LBE Corrosion Resistance

THE EFFECT OF CRYOLITE NA3ALF6 AND SODIUM FLUORIDE NAF ON THE CORROSION AND WETTING BY MOLTEN AL-SI ALLOY OF ANDALUSITE BASED REFRACTORIES

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...

an inverstigation into the shrinkage behavior (kinetics) of microfilled hybrid and nano dental composites

چکیده ندارد.

Functionally Graded Alumina/Mullite Coatings for Protection of Silicon Carbide Ceramic Components from Corrosion

The deposition of carbon from ethylene in the presence of methyl-trichlorosilane or tetrachlorosilane is investigated in this study. Ex-periments are carried out in a hot-wall tubular reactor coupled to amicrobalance for continuous monitoring of the reaction rate. Thingraphite plates and refractory wires are employed as deposition sub-strates. The experimental results sh...