Paper Title:
Microstructure Study of BaTiO3 Ceramics Using Convergent Beam Electron Diffraction
  Abstract

The nanoscale local structure of core-shell structured BaTiO3 grains with a nonuniform dopant distribution was studied by convergent beam electron diffraction. The direct measurements of the variation of lattice parameter in an individual BaTiO3 grain were achieved. It was found that the lattice parameter continuously increased from inside the grain core to the grain shell and there was no discontinuity at the core/shell interface. The increasing gradient of c-axes was slightly smaller than that of a-axes, suggesting that the perovskite unit cell in the grain shell has lower tetragonality.

  Info
Periodical
Edited by
Kazumi Kato, Tadashi Takenaka, Masasuke Takata and Kazuo Shinozaki
Pages
273-276
DOI
10.4028/www.scientific.net/KEM.388.273
Citation
K. Kobayashi, T. Suzuki, Y. Mizuno, "Microstructure Study of BaTiO3 Ceramics Using Convergent Beam Electron Diffraction", Key Engineering Materials, Vol. 388, pp. 273-276, 2009
Online since
September 2008
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