We obtained glasses by using the classical method of melting in an electric furnace at 1100-1450 degrees C for 2 h. The obtained samples were characterized by differential thermal analyses and X-ray diffraction. By controlled thermal treatments the samples were crystallized. BaTiO3 and other barium polititanates were identified. The thin layers were obtained by pulsed laser deposition and magnetron sputtering deposition. By controlled thermal treatments the glasses were transformed to partial and full crystalline materials. Atomic Force Microscopy and Electron Microscopy were used to characterize the materials. (c) 2005 Published by Elsevier B.V.