Abstract
Nano-sized cubic Pb 2 Ti 2 O 6 and monoclinic PbTi 3 O 7 were obtained as the first stage products, by sol-gel process using anhydrous lead acetate and titanium(IV) isopropoxide as precursors; then, as the powder was heated, Pb 2 Ti 2 O 6 gradually transformed to perovskite PbTiO 3 around 673 K. © 2005 Elsevier B.V. All rights reserved.