Grain boundary structure in BaTiO3 with a small excess of Ti-site dopant

T. Yamamoto, Y. Ikuhara, K. Hayashi, T. Sakuma

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


Grain boundary structure was examined with HRTEM and EELS for BaTiO3 doped with a small amount of cations with a special interest in chemical bonding state. It was found that the grain boundary structure was sensitive to a small excess of Ti-site dopant. The grain boundaries arc facetted with {210} habits and an ordered structure is formed. HRETM and EELS examination combined with molecular orbital calculation clearly revealed that TiO6 octahedral linkage changes from corner-sharing in the grain interior to edge-sharing at the grain boundary.

Original languageEnglish
Pages (from-to)247-250
Number of pages4
JournalMaterials Science Forum
Publication statusPublished - 1999
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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