Ordering structure of barium magnesium niobate ceramic with A-site substitution

Jong Hoo Paik, Sei Ki Kim, Mi Jae Lee, Byung Hyun Choi, Eun Kyeong Lim, Sahn Nahm

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The ordering behaviour of Ba(Mg1/3Nb2/3)O3 ceramics (BMN) substituted by La3+, Na+, K+ was investigated using X-ray powder diffraction and transmission electron microscopy. The 1:2 ordered structure of BMN can be transformed to 1:1 ordered structure by substituting a small amount of La cation ion into the A-site. Moreover, the degree of ordering was increased with La content in the compound, and reached almost unity at [La] = 50 mol%. When the La ion in (Ba1-xLax)(Mg(1+x)/3Nb(2-x)/3)O3 (BLMN) was substituted by Na or K ions, the 1:1 ordered structure of BLMN was transformed into the 1:2 ordered structure. The degree of 1:2 ordering was influenced by the sintering temperature and the size difference between the A and B site ions.

Original languageEnglish
Pages (from-to)2885-2888
Number of pages4
JournalJournal of the European Ceramic Society
Volume26
Issue number14
DOIs
Publication statusPublished - 2006

Keywords

  • Ordering
  • Perovskite

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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