Preparation of single crystalline Sr0.5Ba0.5Nb2O6 particles

Abstract

Single crystalline and agglomerate-free ceramic particles are important for fabrication of grain-oriented ceramics by the self-assemble processes. In the present work, preparation of single crystalline Sr0.5Ba0.5NbO6 particles was first explored by traditional solid-state reaction and molten-salt synthesis methods. The results show that the particles synthesized by solid-state reaction were spherical, hard-aggregated and polycrystalline. Molten salt synthesis provides sub-micrometer anisotropic single crystalline Sr0.5Ba0.5NbO6 particles and the morphology of a particle may be adjusted by changing synthesis conditions. The synthesized particles have uniform size distribution and are easily dispersed, thus may suit self-assemble processes to prepare grain-oriented ceramics. Furthermore, effects of synthesis conditions in molten salt synthesis, on the phase formation, morphology and size distribution of SBN particles were investigated. (c) 2005 Elsevier Ltd. All rights reserved.