Simple synthesis of submicrometer lead titanate powder by precipitation ofTiO2 precursor on PbO particulates

Citation
Kr. Han et al., Simple synthesis of submicrometer lead titanate powder by precipitation ofTiO2 precursor on PbO particulates, J AM CERAM, 83(4), 2000, pp. 971-973
Citations number
22
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
ISSN journal
00027820 → ACNP
Volume
83
Issue
4
Year of publication
2000
Pages
971 - 973
Database
ISI
SICI code
0002-7820(200004)83:4<971:SSOSLT>2.0.ZU;2-R
Abstract
A simple way to prepare phase-pure, submicrometer PbTiO3 powder was tried b y precipitation. Precipitation was carried out in an aqueous PbO slurry usi ng aqueous TiCl4 and dilute NH4OH at pH 9.5 +/- 0.1. The TG/DSC curves of t he PT precursor show weight loss of similar to 7% and two exotherms at 492 degrees and 522 degrees C, They are attributed to the crystallization of te tragonal PbTiO3,, XRD shows that tetragonal PbTiO3, can be obtained by heat treatment around 500 degrees C via a noncrystalline state. SEM shows that the PbTiO3, powder calcined at 600 degrees C for 1 h is well crystallized a nd in the range of 100-300 nm.