Open AccessTailoring the dielectric properties of pyrochlore free lead zirconium titanate by synthesising it through different synthesis routes
Author(s) -
Jadhav Pragati S.,
Patankar Ketaki K.,
Mathe Vikas L.,
Puri Vijaya
Publication year - 2014
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2013.0182
Subject(s) - materials science , raman spectroscopy , dielectric , tetragonal crystal system , zirconium , ceramic , scanning electron microscope , pyrochlore , grain size , phase (matter) , phase transition , precipitation , titanate , mineralogy , analytical chemistry (journal) , composite material , chemical engineering , crystal structure , crystallography , metallurgy , optics , optoelectronics , condensed matter physics , chemistry , physics , organic chemistry , chromatography , meteorology , engineering
The structural and dielectric properties of lead zirconium titanate (PZT) (52:48) ceramic prepared from different synthesis route are discussed in this paper. The PZT green powders were synthesised via three different routes: ceramic, combustion and co‐precipitation. The x‐ray diffraction (XRD) patterns confirm the pure tetragonal phase formation of PZT for all the different routes adopted by us. Scanning electron microscopy (SEM) micrographs show the surface morphology vary and also grain sizes of PZT prepared from three different routes change from nano to micron size. The Raman intensities were obtained with slight variation in peak intensities and also with slight variations in wave‐numbers for all the three PZT samples prepared using different routes. These slightly varied wave‐numbers for all the three present samples are however in close proximity with the Raman vibrational modes pertinent for PZT as seen in the literature. The dielectric constant variation with temperature measured for three different powders also shows a considerable change in transition temperature. The structural and dielectric variations are co‐related to explain the variations in transition temperature.