Lead iron mobate, Pb(Fe0.5Nb0.5)O-3 (PFN) is an optimal material for multilayered ceramic capacitors (MLCCs). Fine lead iron mobate powders with average size of 500 not were prepared from the precipitation precursor. In the experiment, Nb2O5 was used as Nb source to substitute Nb alkyloxide or oxalate and successfully converted into aqueous Nb5+ solution. The results shows that the perovskite PFN was emerged at a temperature as low as 400 degrees C, and pure perovskite was obtained at the temperature of 800 degrees C. The formation of perovskite at a low temperature was attributed to the core-shell structure in the precipitates of hydroxide. Besides, the particles of perovskite PFN show the good chemical stoichiometry and small size of 300-500 nm. (c) 2006 Elsevier B.V. All rights reserved.