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Fangren Hu, Lin Li, Dongning Zheng, and Changchun Ge, Preparation and densification of BaTiO3 nanopowder by sol-gel autoigniting synthesis, J. Univ. Sci. Technol. Beijing , 9(2002), No. 3, pp.188-192.
Cite this article as: Fangren Hu, Lin Li, Dongning Zheng, and Changchun Ge, Preparation and densification of BaTiO3 nanopowder by sol-gel autoigniting synthesis, J. Univ. Sci. Technol. Beijing , 9(2002), No. 3, pp.188-192.
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Preparation and densification of BaTiO3 nanopowder by sol-gel autoigniting synthesis

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  • Autoigniting synthesis of gel from Ba(NO3)2, TiO(NO3)2 and C6H8O7·H2O aqueous solution was investigated at an initial temperature of 600℃ and tetragonal BaTiO3 nanopowder with particle size of 80nm was prepared. It is indicated that the specific surface area of the combustion product before and after calcination is 14.74 m2/g and 12.49 m2/g, respectively. The combustion wave is composed of solid phase reaction zone and gaseous phase flame reaction zone. The combustion flame temperature is 1 123 K derived from thermocouple measurement. The characteristics and densification behavior of the sol-gel autoigniting synthesized BaTiO3 nanopowder were investigated.
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