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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 ss)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.
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 showed at 400 ° C and then LiNbO3 solid solution (LiNbO3 ss) M-phase started to appear along with the decrease of TiO2 and LiNbO3 ss.Single M-phase could be formed at 700 ° C, which is 300 ° C 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.