Abstract
The crystal structures and dielectric properties of Sm-doped BaTiO3 have been studied in terms of synthesized method. (Ba1−xSmx)TiO3 samples were prepared using the liquid mix method and solid state reaction. The lattice constants of (Ba1−xSmx)TiO3 system by the liquid-mix method steadily decreased with increasing Sm content. Curie temperature (Tc) moved to lower temperatures as the Sm content increased. In (Ba1−xSmx)TiO3 system by the solid state reaction, the crystal structure of (Ba1−xSmx)TiO3 switches to pseudo-cubic and the lattice constant increased with increasing Sm contents. The conventional mixing of starting powders and repeated calcinations processes did not yield the expected nominal composition, where Sm ions occupy mostly Ti sites even in the Ba deficient composition(Ba/Ti 5 mol% a larger grain growth was developed.
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