Mullite-alumina functionally gradient ceramics

Mullite-alumina functionally gradient ceramics

Cracks free mullite-alumina Functionally Gradient Ceramics (FGC) have been obtained by sequential slip casting of Mullite-alumina slurries with diserent mullite/alumina ratios. These slurries were prepared with 65 % solids content and viscosities rangingpom 10 to 40 mPa.s. 7he presence of cracks perpendicular to the FGC layers have been attributed to residual stresses developed because of the m...

Preparation of High Purity Mullite Ceramics

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...

Functionally Graded Alumina/Mullite Coatings for Proatection of Silicon Carbide Ceramic Components from Corrosion, 10/97, 180021

Functionally Graded Alumina/Mullite coatings for Protection of Silicon Carbide Ceramic Components from Corrosion, 3/98, 97567