Grain-size effects on the ferroelectric behavior of dense nanocrystalline BaTiO3 ceramics

Zhao, Zhe, 1973- (author): Department of Physical Inorganic and Structural Chemistry, Stockholm University

Buscaglia, V. (author)

Viviani, M. (author)

Buscaglia, M. T. (author)

Mitoseriu, L. (author)

Testino, A. (author)

Nygren, M. (author)

Johnsson, M. (author)

Nanni, P. (author)

(creator_code:org_t)

American Institute of Physics (AIP), 2004
2004
English.
In: Physical Review B. Condensed Matter and Materials Physics. - : American Institute of Physics (AIP). - 1098-0121 .- 1550-235X. ; 70:2

Related links:: https://urn.kb.se/re...; show more...; https://doi.org/10.1...; show less...

Abstract Subject headings

A progressive reduction of tetragonal distortion, heat of transition, Curie temperature, and relative dielectric constant has been observed on dense BaTiO3 ceramics with grain size decreasing from 1200 to 50 nm. The correlations between grain size, extent of tetragonal distortion, and ferroelectric properties strongly support the existence of an intrinsic size effect. From the experimental trends the critical size for disappearance of ferroelectricity has been evaluated to be 10-30 nm. The strong depression of the relative permittivity observed for the nanocrystalline ceramics can be ascribed to the combination of the intrinsic size effect and of the size-dependent "dilution" effect of a grain boundary "dead" layer.

By the author/editor: Zhao, Zhe, 1973-; Buscaglia, V.; Viviani, M.; Buscaglia, M. T.; Mitoseriu, L.; Testino, A.; show more...; Nygren, M.; Johnsson, M.; Nanni, P.; show less...

About the subject

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Materials Engine ...; and Ceramics

NATURAL SCIENCES: NATURAL SCIENCES; and Physical Science ...; and Condensed Matter ...

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