Synthesis and Electrophysical Properties of Ba(Ti, Sn)TiO3 and (Ba, Nd)TiO3 Solid Solutions |
| L.L. Kovalenko, O.I. V'yunov, T.O. Plutenko, O.Z. Yanchevskii, O.P. Fedorchuk, A.G. Bilous, Yu.D. Stupin
V.I. Vernadsky Institute of General and Inorganic Chemistry of NAS of Ukraine, 32/34 Palladina Ave., 03142 Kyiv, Ukraine |
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| Ba(Ti, Sn)TiO3 and (Ba, Nd)TiO3-based solid solutions were synthesized using the solid-state reaction technique. The sequence of phase transformations during synthesis was established. Crystallographic parameters and microscopy were studied. Changes in crystallographic parameters and average grain size with substitution degree were determined. It was found that the introduction of 0.5 wt% manganese oxide (IV) and 2 wt% of low-melting glass AST (Al2O3-SiO2-TiO2) reduces the sintering temperature and improves the dielectric parameters (ε and tan(δ)). It has been shown that the obtained materials are promising for the development of ceramic capacitors. |
DOI:10.12693/APhysPolA.141.410 topics: barium titanate, high dielectric constant, complex impedance, solid-state reaction technique |