Balzar, D.
, Ledbetter, H.
, Stephens, P.
, Park, E.
and Routbort, J.
(1999),
Dislocation-Density Changes Upon Poling of Polycrystalline BaTiO<sub>3</sub>, Physical Review B (Condensed Matter and Materials Physics)
(Accessed October 25, 2025)
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Dislocation-Density Changes Upon Poling of Polycrystalline BaTiO3
Published
Author(s)
, , P W. Stephens, E T. Park, J L. Routbort
Abstract
We report evidence for a significant increase of bulk dilocation density upon poling of polycrystalline BaTiO3. The synchrotron high-resolution x-ray diffraction measurements yield a dislocation density on the order of 109/cm2 and an associated strain-energy increase of about 20 kJ/m3. This implies that the application of an external poling field generated deflects in the structure and increases the internal stress. Possible consequences in both bulk and thin-filmed applications include accelerated aging and microcracking.Citation
Physical Review B (Condensed Matter and Materials Physics)
Volume
59
Pub Type
Journals
Keywords
BaTiO<sub>3</sub>, diffraction-line broadening, dislocations, poling, strain, synchrotron radiation, x-ray diffraction
Citation
Issues
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Created February 1, 1999, Updated February 17, 2017