Abstract
Low-angle tilt grain boundaries in [001] fiber-textured BaTiO3 thin films were investigated by high-resolution transmission electron microscopy. Extensive observation revealed a very high density of low-angle tilt grain boundaries in the film. The low-angle tilt grain boundaries can be described as periodical arrays of dislocations on {100} and {110} boundary planes. The boundaries with (100) plane on {100} planes are composed of perfect dislocations with Burgers vectors b = a < 100 > (a = lattice constant of BaTiO3: 0.3992 nm), while the boundaries with (110) plane on {110} planes are composed of the dissociated dislocations with Burgers vectors a/2 < 110 >. It was thus found that the difference in the boundary plane leads to different dislocation structures along the low-angle grain boundaries.
Original language | English |
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Pages (from-to) | 5146-5150 |
Number of pages | 5 |
Journal | Journal of Materials Science |
Volume | 41 |
Issue number | 16 |
DOIs | |
Publication status | Published - 2006 Aug |
ASJC Scopus subject areas
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering