Fabrication of Porous TiO₂ Ceramics from Aqueous TiO₂ Slurry with Harogen-Free Aqueous Titanate Solution

Abstract

Porous ceramics are of interest to their applications. We have already reported that harogen-free aqueous titanate solution acted as a dispersant for preparing aluminum oxide slurry. In this study, the fluidity of aqueous TiO₂ slurry with titanate solution was investigated. The TiO₂ slurries were impregnated to melamine sponge to prepare the porous TiO₂ ceramics. Sponge-like porous TiO₂ ceramics were able to fabricate by the sintering of sponge impregnated with aqueous TiO₂ slurry.