Preparation And Characterisation Of Na20-Al203-B203 Sol-Gel Glasses With Aluinium Lactate And Formiate As Precursors

In this work, aluminum lactate and aluminum formiate have been used as precursors to obtain room temperature stable sols and gels and after annealing homogeneous glasses in the system Na2O-Al203-B203. The local environments and connectivities of boron and aluminum have been investigated by NMR. It was found that the local atomic structures of the sol-gel glasses markedly depend on the precursors and the preparation routes and are also dissimilar to those of melt quenched glasses of the same compositions.