Mullite Ceramics: Its Properties, Structure, and Synthesis
Abstract: Besides its
importance for conventional ceramics, mullite has become a choice of material
for advanced structural and functional ceramics due to its favourable
properties. Some outstanding properties of mullite are low thermal expansion,
low thermal conductivity, excellent creep resistance, high-temperature
strength, and good chemical stability. The mechanism of mullite formation
depends upon the method of combining the alumina- and silica-containing
reactants. It is also related to the temperature at which the reaction leads to
the formation of mullite (mullitisation temperature). Mullitisation
temperatures have been reported to differ by up to several hundred degrees
Celsius depending on the synthesis method used. The three synthesis methods
used to prepare mullite are discussed in this paper together with an overview
of mullite, its properties and the current application of mullite.
Keywords: mullite,
mullitisation, glassy phase, sol-gel, spray pyrolysis, chemical vapour deposition
Author: Juliana Anggono
Kode Jurnal: jptmesingg050001
