Amorphous ribbons of approximate composition 0.13Na2O-0.30BaO-0.30Fe2O3-0.27SiO2 were successfully fabricated using roller-quenching, after melting at 1400-degrees-C. Devitrification of the amorphous phase by annealing at 710-degrees-C for 2 h formed a uniform distribution of barium ferrite (BaFe12O19) particles with a mean diameter of 55.88 nm. Other crystalline phases formed on heat treatment were BaFe2O4 and Na2Ba2Si2O7. Devitrified ribbons showed a saturation magnetization (M(s)) of 24.41 emu g-1 and a coercivity (H(c)) of 3.06 kOe.