A simple sol-gel route was demonstrated for the synthesis of LiNb0.6Ti0.5O3 （M-phase） powder, using cheap and manageable starting materials at a relatively low temperature. The phase transitions in both chemical and...A simple sol-gel route was demonstrated for the synthesis of LiNb0.6Ti0.5O3 （M-phase） powder, using cheap and manageable starting materials at a relatively low temperature. The phase transitions in both chemical and solid-state processes were studied by X-ray diffraction （XRD） in detail. The results showed that in the sol-gel process the anatase TiO2 phase first appeared at 400 ℃ and then LiNbO3 solid solution （LiNbO3 55） emerged at 500 ℃. When calcined to 600 ℃, the M-phase started to appear along with the decrease of TiO2 and LiNbO3 ss. Single M-phase could be formed at 700℃, which is 300 ℃ lower than that by the traditional solid-state method. A plausible evolution mechanism of the as-synthesized powder in calcination was proposed. The produced powder has potential applications in microelectronics systems.展开更多
文摘A simple sol-gel route was demonstrated for the synthesis of LiNb0.6Ti0.5O3 （M-phase） powder, using cheap and manageable starting materials at a relatively low temperature. The phase transitions in both chemical and solid-state processes were studied by X-ray diffraction （XRD） in detail. The results showed that in the sol-gel process the anatase TiO2 phase first appeared at 400 ℃ and then LiNbO3 solid solution （LiNbO3 55） emerged at 500 ℃. When calcined to 600 ℃, the M-phase started to appear along with the decrease of TiO2 and LiNbO3 ss. Single M-phase could be formed at 700℃, which is 300 ℃ lower than that by the traditional solid-state method. A plausible evolution mechanism of the as-synthesized powder in calcination was proposed. The produced powder has potential applications in microelectronics systems.
