ABSTRACT
This chapter discusses the synthesis of mullite using components from the same source or varying sources and either changing the processing conditions or keeping them constant. Precursor B was synthesized via the homogeneous precipitation method with TEOS and ANN using urea, and the precipitation occurred within the pores of the organic gel. Later on, as many as six types of mullite precursors were synthesized by changing the pH and the water content. To it, a measured quantity of TEOS was added to make a stoichiometric mullite gel. Synthesis of mullite using components from the same source but with different processing conditions produces gels or precursors of different characteristics. Hydrolysis-cum-polymerization of metal ions can generally be modified by the use of complexing agents. Mizukami et al. and Mizukami et al. tried to report a relationship between the complexing ability of various ligands during the sol-gel process of the synthesis of a precursor and the formation of mullite.
