Abstract
The nano-sized BaTiO 3:La 3+ 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 °C and doped concentration is 7%, the phase is cubic without other phases, and the particle size of power is 43.34 nm.
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