Effect of different salt on fabrication of Sr0.5Ba 0.5Nb2O6 by molten-salt synthesis

Abstract

In the present work, effects of different salts (NaCl, 0.5NaCl-0.5KCl and KC1) on molten-salt-synthesized Sr<inf>0.5</inf>Ba<inf>0.5</inf>Nb <inf>2</inf>O<inf>6</inf> (SBN50) powder were explored. A variety of particle morphology, compositions and lattice parameters of SBN50 were investigated. The results showed that SBN50 particles synthesized in NaCl salt have the finest diameter (0.1-0.2?m) and the highest aspect ratio (around 10), while the particles from 0.5NaCl-0.5KCl salt show the coarsest diameter (0.2-0.3?m) and the lowest aspect ratio (around 5). If only using KCl salt, trace Sr <inf>2</inf>Nb<inf>2</inf>O<inf>7</inf> normally co-exists with SBN50 phase. In addition, Na+ and K+ cations from salts are easily incorporated with SBN structure and reach a very high content. © 2020 Elsevier B.V., All rights reserved.