The sintering behavior of nanocrystalline orthorhombic mullite powders was investigated.
The changes in microstructure, mechanical and dielectric properties with two different …

The effect of precursor powders using aluminium sulphate/boehmite and colloidal silica on
the green compact, mullitization, densification, microstructure and mechanical properties …

Mullite of stoichiometric composition has been synthesized by sol-gel process. Aluminium
nitrate and ethyl silicate are used as the starting materials to prepare the single phase …

The effect of alumina component in diphasic mullite precursors containing alkoxy-derived
silica on the crystallization and sintering behavior of compacts was studied. The phenomena …

Crystallization and sintering behaviour of two structurally different diphasic precursor mullite
powders were studied. Powder derived from boehmite and colloidal silica formed mullite at …

Boehmite (AlO (OH)) solid‐solution gel, which yields stoichiometric mullite (3Al2O32SiO2) at
high temperatures, has been prepared by the hydrazine method. The formation process …

Ultrafine powders of aluminum‐rich mullite precursor phases were prepared by spraying
mixed acid solutions of silicic acid and aluminum chloride into ammonium hydroxide at …

Sol‐gel‐derived mullite ceramics were processed by pressureless sintering at 1600°, 1650°,
and 1700° C for 4 h. Microstructural and microchemical characterization of the mullite …

Ultrafine pre-mullite powders, which yield mullite at high temperatures, have been prepared
from colloidal silica and aluminium nitrate via carbonate coprecipitation and followed by …

Diphasic gels with alumina/silica ratio of 68/32, 71.8/28.2, 74/26, and 76/24 were prepared
and used to study the effect of the precursor composition on the mullite formation process …