In this research barium hexa aluminate fibrous refractory products were produced by a
chemical processing route. Boehmite was used as aluminum precursor while barium nitrate
was used as barium precursor and the final solution had made according to stoichiometric
BaO. 6Al2O3 composition. It was found that two different gels could be obtained during this
route. Mainly the secondary gel was trapped into the initial gel structure. Finally gels were
heated at various temperatures (1350, 1650℃) to following the formation of the barium hexa …