Chemical and physical characterization of porous materials prepared by leaching glasses in the system Na2O-Al2O3-B2O3-F

On etudie les proprietes chimiques et physiques (aire superficielle, dimension de pores, densite, dilatation thermique, etc) de verres poreux prepares par lessivage de verres du systeme: Na 2 O-Al 2 O 3 -B 2 O 3 -F