Characterization of Perovskite Lead Iron Niobate Powders Synthesized by Partial Oxalate
Pitak Youmee [a] and Sukon Phanichphant* [b]* Author for corresponding; e-mail address: psukon@yahoo.com
Volume: Vol.32 No.1 (JANUARY 2005)
Short Communication
DOI:
Received: 30 August 2004, Revised: -, Accepted: 4 January 2005, Published: -
Citation: Youmee P. and Phanichphant S., Characterization of Perovskite Lead Iron Niobate Powders Synthesized by Partial Oxalate, Chiang Mai Journal of Science, 2005; 32(1): 71-76.
Abstract
A partial oxalate route has been developed for the synthesis of lead iron niobate, Pb(Fe1/2Nb1/2)O3 (PFN) powder. An oxalated iron niobate (FeNbO4) was employed as a key precursor with the formation of PFN phase investigated as a function of calcination temperature and dwell time by TG-DTA and XRD. The morphology of the calcined powder was determined via SEM. It has been found that the unreacted FeNbO4 and PbO phases tend to form together with PFN depending on calcination conditions. However, single phase PFN powder was successfully obtained for a calcination temperature of 900°C for 4 h.