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Synthesis and characteristics of Bi_(0.5)Na_(0.5)TiO_3 nanopowder

TONG Yue, ZHENG Qing-hua, XIA Zheng-rong(Huainan Normal University, Huainan 232001, China)  
Bi0.5Na0.5TiO3 nanopowders are synthesized through a gel-selfcombustion process, and the crystallization, density and micro-structure are studied. The results indicate that the particle size is about 40 nm, and a single perovskite phase is formed without the need of high temperature sintering. The precursor powers are then pressed into tablets and fully sintered at 1 125 ℃ for 2 h, obtaining a relative density of 98.08%, and mean particle size of 2 μm as determined by SEM.
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