Preparation of mullite from high-alumina coal fly ash (CFA) has become one of the most
important ways for high-value utilization. However, low Al 2 O 3/SiO 2 ratio, poor reaction …

The increasing demand for mullite whisker-reinforced, toughened ceramic materials and
mullite raw materials that meet industrial requirements has prompted the search for new and …

High-strength ceramics were prepared from high alumina fly ash (HAFA) and activated
alumina as raw materials with magnesia as a sintering additive. The growth kinetics and …

Mullite whiskers were successfully synthesized using coal fly ash, andalusite-sericite
phyllite, NH 4 Al (SO 4) 2· 12H 2 O and SiO 2, with a slight addition of NaH 2 PO 4· 2H 2 O …

Mullite whiskers were prepared from Si powders in molten Al 2 (SO 4) 3-Na 2 SO 4 mixture
salts with different Al/Si molar ratio (R) of raw materials. The resulting mullite whiskers, had …

This paper presents an in-depth comparative study of the effects of different molten salt
systems, catalyst additions, preparation temperatures, temperature rise rates, and holding …

Mullite has been recognized as an important material for high‐temperature structural
applications, and mullite whiskers are good candidates for reinforced ceramic composites. In …

Mullite is a promising material for advanced ceramic applications. The synthesis of mullite
from oxides requires very high temperatures (T> 1000° C). Here highly crystalline mullite …

The method of in situ synthesis of mullite whiskers by gas-phase deposition and reaction
was applied to improve the compressive strength of the mullite fiber brick. During the …

Porous has been formed in samples when mullite whiskers are prepared by firing compacts
of high-aluminum fly ash and ammonium aluminum sulfate hydrate with a small amount of …