Novel Ceramic Materials, Chapter 2


Synthesis, Characterization and Charge Density Analysis of Lead Free Piezoceramics Na1-xKxNbO3

S. Sasikumar, R. Saravanan

Solid solutions of lead free ceramics of Na1-xKxNbO3 (x=0.01, 0.03 and 0.05) were prepared by the conventional solid state reaction method. The formation of perovskite structure of the prepared ceramics was confirmed by means of room temperature powder X-ray diffraction. The powder X-ray diffraction study confirmed that Na1-xKxNbO3 (x=0.01, 0.03 and 0.05) adopted the orthorhombic structure. The crystal structures were refined using profile refinement. The electron density distributions of these crystals were analysed with the maximum entropy method (MEM) using powder X-ray diffraction data. Aggregated average particle sizes were evaluated using scanning electron microscopy. Elemental compositional analysis was carried out using energy dispersive spectrum. Optical properties are analyzed by UV-Visible spectrum.

Crystal Structure, X-Ray Diffraction, Rietveld Analysis, Optical Properties, Polyhedral

Published online 6/1/2016, 13 pages

DOI: 10.21741/9781945291036-2

Part of Novel Ceramic Materials

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