Understanding microwave dielectric properties of Pb-based complex perovskite ceramics via bond valence

Yong S. Cho; Ki Hyun Yoon; Byoung Duk Lee; Hong Ryul Lee; Eung Soo Kim

doi:10.1016/j.ceramint.2003.12.007

Understanding microwave dielectric properties of Pb-based complex perovskite ceramics via bond valence

Yong S. Cho, Ki Hyun Yoon, Byoung Duk Lee, Hong Ryul Lee, Eung Soo Kim

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

Abstract

Correlations between microwave dielectric properties and the dielectric polarizabilities related to the bond valences of A- and B-site ions in Pb-based complex perovskite ceramics have been investigated. With the decrease of A-site bond valence, the dielectric constants were higher than those obtained from the dielectric additivity rule due to the rattling behavior of A-site ions. The temperature coefficient of the resonant frequency (TCF) depended strongly on the bond valences of the A- and B-sites, as well as the tolerance factor (t) in the perovskite structure. In the tilted region (t < 1.0), the tilting of the oxygen octahedra increased and the TCF decreased because of the increasing bond valence of the B-site. Also, the dependence of TCF on the bond valence of the A-site was similar to its dependence on the tolerance factor (t).

Original language	English
Pages (from-to)	2247-2250
Number of pages	4
Journal	Ceramics International
Volume	30
Issue number	8
DOIs	https://doi.org/10.1016/j.ceramint.2003.12.007
Publication status	Published - 2004

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Process Chemistry and Technology
Surfaces, Coatings and Films
Materials Chemistry

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10.1016/j.ceramint.2003.12.007

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abstract = "Correlations between microwave dielectric properties and the dielectric polarizabilities related to the bond valences of A- and B-site ions in Pb-based complex perovskite ceramics have been investigated. With the decrease of A-site bond valence, the dielectric constants were higher than those obtained from the dielectric additivity rule due to the rattling behavior of A-site ions. The temperature coefficient of the resonant frequency (TCF) depended strongly on the bond valences of the A- and B-sites, as well as the tolerance factor (t) in the perovskite structure. In the tilted region (t < 1.0), the tilting of the oxygen octahedra increased and the TCF decreased because of the increasing bond valence of the B-site. Also, the dependence of TCF on the bond valence of the A-site was similar to its dependence on the tolerance factor (t).",

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AU - Cho, Yong S.

AU - Yoon, Ki Hyun

AU - Lee, Byoung Duk

AU - Lee, Hong Ryul

AU - Kim, Eung Soo

PY - 2004

Y1 - 2004

N2 - Correlations between microwave dielectric properties and the dielectric polarizabilities related to the bond valences of A- and B-site ions in Pb-based complex perovskite ceramics have been investigated. With the decrease of A-site bond valence, the dielectric constants were higher than those obtained from the dielectric additivity rule due to the rattling behavior of A-site ions. The temperature coefficient of the resonant frequency (TCF) depended strongly on the bond valences of the A- and B-sites, as well as the tolerance factor (t) in the perovskite structure. In the tilted region (t < 1.0), the tilting of the oxygen octahedra increased and the TCF decreased because of the increasing bond valence of the B-site. Also, the dependence of TCF on the bond valence of the A-site was similar to its dependence on the tolerance factor (t).

AB - Correlations between microwave dielectric properties and the dielectric polarizabilities related to the bond valences of A- and B-site ions in Pb-based complex perovskite ceramics have been investigated. With the decrease of A-site bond valence, the dielectric constants were higher than those obtained from the dielectric additivity rule due to the rattling behavior of A-site ions. The temperature coefficient of the resonant frequency (TCF) depended strongly on the bond valences of the A- and B-sites, as well as the tolerance factor (t) in the perovskite structure. In the tilted region (t < 1.0), the tilting of the oxygen octahedra increased and the TCF decreased because of the increasing bond valence of the B-site. Also, the dependence of TCF on the bond valence of the A-site was similar to its dependence on the tolerance factor (t).

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Understanding microwave dielectric properties of Pb-based complex perovskite ceramics via bond valence

Abstract

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