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 journalArticle

7 Citations (Scopus)

Abstract

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
Volume294-296
Publication statusPublished - Dec 1 1999
Externally publishedYes

Fingerprint

Grain boundaries
grain boundaries
Doping (additives)
Electron energy loss spectroscopy
Orbital calculations
habits
Molecular orbitals
linkages
Cations
molecular orbitals
arcs
examination
Positive ions
cations

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Grain boundary structure in BaTiO3 with a small excess of Ti-site dopant. / Yamamoto, T.; Ikuhara, Y.; Hayashi, K.; Sakuma, T.

In: Materials Science Forum, Vol. 294-296, 01.12.1999, p. 247-250.

Research output: Contribution to journalArticle

Yamamoto, T, Ikuhara, Y, Hayashi, K & Sakuma, T 1999, 'Grain boundary structure in BaTiO3 with a small excess of Ti-site dopant', Materials Science Forum, vol. 294-296, pp. 247-250.
Yamamoto, T. ; Ikuhara, Y. ; Hayashi, K. ; Sakuma, T. / Grain boundary structure in BaTiO3 with a small excess of Ti-site dopant. In: Materials Science Forum. 1999 ; Vol. 294-296. pp. 247-250.
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