No abstract

No abstract

No abstract

No abstract

La 9.33 (Si 5 V 1 )O 26 ceramics were fabricated by the mixed oxide method for solid oxide electrolytes. La 9.33 (Si 5 V 1 )O 26 specimens showed the hexagonal, space group P63 or P63/m, and the unit cell volume increased when the sintering temperature increased. The specimen sintered at 1,400℃ showed the X-ray patterns of the homogeneous apatite single phase without the second phase, such as La 2 SiO 5 and SiO 2 . The specimen sintered at 1,400℃ showed the maximum sintered density of 4.93 g/cm 3 . When the sintering temperature increased, the electrical conductivities increased, the activation energy decreased and the values were 7.83×10 -4 S/cm, 1.61 eV at 600℃, respectively.