Effect of SrTiO₃ Nano-Crystals on the Dielectric Properties of Na_0.47K_0.47Li_0.06NbO₃ Ceramics by Seed-Induced Method

Abstract

A solid-state reaction method is generally used to fabricate ceramics. This work studies the influence of heterogenous nano-crystallites on electrical properties of lead free Na0.47K0.47Li0.06NbO3 (NKLN) ceramics by adding SrTiO3 nano-crystals as the initial phase of reaction. The lead-free piezoelectric ceramics were synthesized by the seed-induced method. The SrTiO3 nano-crystals used as seeds were prepared by molten salt technique. The seed content was varied from 0 to 10.0 mol%. The investigation reports microstructure and electrical properties of ceramics. The XRD showed a mixed tetragonal and orthorhombic phase structure. Tc decreasing with increased SrTiO3nano-crystal concentration.

Phase Transition and Electrical Properties of Ba_0.8Sr_0.2TiO₃: Comparison of Different Preparation Techniques

“…It is well known that the dielectric constant depends on the many factors such as composition, grain size, secondary phase, phase composition, etc. [11,[14][15], this maybe the effect of the samples phase composition and non-homogenous of the grain growth.…”