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Aqueous Co-precipitated spherical shape PbZrO3 nanopowders: Perovskite phase formation
Author(s)
Charoonsuk, Piyanut
Niemcharoen, Surasak
Date Issued
May 1, 2013
Type
Conference Paper
Abstract
The perovskite phase formation of nanocrystalline powder of lead zirconate (PbZrO3, PZ) was investigated. The structure, phase formation and morphology of PZ powders were characterized using the X-ray diffraction technique (XRD), Fourier transform infrared (FT-IR) spectroscopy, Raman spectroscopy, transmission electron microscope (TEM) and differential scanning calorimetry (DSC). Tetragonal zirconia (t-ZrO2) phase was found as an intermediate phase during the calcinations process, followed by the crystallization of the orthorhombic PZ phase. The change in relative amount of the residual t-ZrO2 phase as a function of calcination temperature was estimated from the relative intensities of selected Raman peaks. From a TEM photograph, the PbZrO3 powder was found to be spherical in shape with uniform nanosized features. The average particle size for the calcined powders was about 10.44±1.21 nm. © 2012 Elsevier Ltd and Techna Group S.r.l.
Citation
Ceramics International, 39(SUPPL.1), S107-S111, 2013