Abstract
BaTi1–xNbxO3 compounds (with x = 0.00, 0.01, 0.03, 0.06, and 0.09) are synthesized by the microwavehydrothermal (MH) method. The donor concentration effect on the structural properties is investigated. The new MH method is used instead of the previous solid state reaction for the BaTiO3+Nb2O3 system. In the MH process, as the niobium incorporation rate increases, the particle growth substantially slows down. The synthesis of Nb-doped BaTiO3 is investigated under the MH conditions subjected to 150°C for only 2 h using C16H36O4Ti (tetra-n-butyl orthotitanate), Ba(OH)2∙8H2O, and NbCl5 as Ba, Ti, and Nb sources respectively. For the phase evolution studies, X-ray diffraction patterns are analyzed and Raman spectroscopy is performed. The transmission electron microscope and the field emission scanning electron microscope images are taken for the detailed analysis of the grain size, surface, and morphology of the compound.
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