Journal of Ceramic Processing Research

Ceramic Processing Research Center (한양대학교 세라믹연구소)
권호 표지

Effect of Na2CO3 contents on synthesis of plate-like NaNbO3 particles for templated grain growth

  • Kim, Min-Soo (Battery Research Center, Korea Electrotechnology Research Institute) ;
  • Lee, Sung-Chan (Battery Research Center, Korea Electrotechnology Research Institute) ;
  • Kim, Sin-Woong (Battery Research Center, Korea Electrotechnology Research Institute) ;
  • Jeong, Soon-Jong (Battery Research Center, Korea Electrotechnology Research Institute) ;
  • Kim, In-Sung (Battery Research Center, Korea Electrotechnology Research Institute) ;
  • Song, Jae-Sung (Battery Research Center, Korea Electrotechnology Research Institute) ;
  • Soh, Jin-Joong (Electric Apparatus Testing Department, Korea Electrotechnology Research Institute) ;
  • Byun, Woo-Bong (Electric Apparatus Testing Department, Korea Electrotechnology Research Institute)
  • Published : 2012.11.01
⟨ Previous Next ⟩

Abstract

x mol% (x = 0 ~ 20) Na2CO3 excess Bi2.5Na3.5Nb5O18 (BNN) particles were synthesized using molten salt as a flux. The secondary phases were observed at stoichiometric ratio of BNN precursors and their intensity decreased with increasing Na contents. The results of SEM images showed that all particles existed in a platelet shape and the particle increased in size with higher increasing Na contents. Plate-like NaNbO3 particles were developed using BNN precursor obtained by a topochemical microcrystal conversion. XRD analysis of NaNbO3 particles showed that a single perovskite phase and the intensity of (h00) peaks increased with increasing Na contents in BNN precursor. SEM images showed that the size of plate-like NaNbO3 was significantly changed by controlling Na contents in BNN precursors.

Keywords