Preparation and Study of Li 6 Y(Bo 3 ) 3 and Li 6 Gd (Bo 3 ) 3 Double Borates

Li6Y(BO3)(3) and Li6Gd(BO3)(3) powders were synthesized using wet chemical method. Lithium-nitrate, yttrium-/gadolinium-nitrate and boric acid solutions were mixed in stoichiometric composition, and a colloidal precipitate was obtained by adjusting the pH of the mixture. Li6Y(BO3)(3)/Li6Gd(BO3)(3) phase formation was achieved by annealing the precursors in the 650-700 degrees C temperature range. The reaction steps were monitored by FUR and Raman-spectroscopy, and the final products were characterized by X-ray powder diffraction and scanning electron microscope. XRD assessment shows that we obtained LYBO/LGBO as dominant phases after a 24 h treatment at 650 degrees C.