Preparation and Characterization on Nano-Sized Barium Titanate Powder Doped with Lanthanum by Sol-Gel Process
来源期刊：JOURNAL OF RARE EARTHS2006年增刊第2期
论文作者：Xiao Zuojiang Ma Zhimei Zhao Xinle Chen Guang
Key words：BaTiO3:La3+; nano-sized powder; sol-gel method; doped concentration; rare earths;
Abstract: The nano-sized BaTiO3:La3+ powders were prepared by sol-gel process using butyl phthalate, barium acetate and lanthanum oxide as raw material, and these samples were tested by means of TG-DTA, XRD and SEM. The results indicate that with the annealing temperature and the doped concentration rising, the powders' particle sizes will increase and decrease respectively. When annealing temperature is 900 ℃ and doped concentration is 7%, the phase is cubic without other phases, and the particle size of power is 43.34 nm.
Xiao Zuojiang1，Ma Zhimei1，Zhao Xinle1，Chen Guang1
(1.Changchun University of Science and Technology, Changchun 130022, China)
Abstract:The nano-sized BaTiO3:La3+ powders were prepared by sol-gel process using butyl phthalate, barium acetate and lanthanum oxide as raw material, and these samples were tested by means of TG-DTA, XRD and SEM. The results indicate that with the annealing temperature and the doped concentration rising, the powders'' particle sizes will increase and decrease respectively. When annealing temperature is 900 ℃ and doped concentration is 7%, the phase is cubic without other phases, and the particle size of power is 43.34 nm.
Key words:BaTiO3:La3+; nano-sized powder; sol-gel method; doped concentration; rare earths;
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