Specific Features of the Synthesis of Porous Materials Based on a Magnesium-Aluminum Spinel

摘要

Ultrafine powders are synthesized through cocrystallization of magnesium,aluminum,and silicon compounds.Spinel-cordierite two-phase composites are prepared based on these powders.The lackhing of a chemically unstable phase in hydrofluoric acid solutions is studied.The optimum conditions are determined for treatment of two-phase matericals with the aim of preparing ceramics based on the magnesium-aluminum spinel with an accessible porosity of higher than 50%.