Microwave dielectric properties and Far-infrared spectroscopic analysis of Ba5+nTinNb4O15+3n (0.3 < n < 1.2) ceramics

In Sun Cho, Jeong Ryeol Kim, Dong Wook Kim, Dong-Wan Kim, Kug Sun Hong

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Ba5+nTinNb4O15+3n ceramics (0.3 < n < 1.2) with a cation deficient hexagonal perovskite related structure were prepared by a conventional solid-state reaction method. The crystal structure and microstructure were investigated by X-ray powder diffraction (XRD) and field emission scanning electron microscope (FE-SEM), respectively. The microwave dielectric properties were measured using a network analyzer. The dielectric constant (εr) and the temperature coefficient of resonant frequency (τf) were increased and the quality factor (Q × f) was decreased with increasing in the n value. The effect of the crystal structure on the microwave dielectric properties was also investigated. The FT-IR reflection spectra were obtained and analyzed using a Kramers-Kronig relation.

Original languageEnglish
Pages (from-to)3081-3086
Number of pages6
JournalJournal of the European Ceramic Society
Volume27
Issue number8-9 SPEC. ISS.
DOIs
Publication statusPublished - 2007 Apr 8
Externally publishedYes

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Spectroscopic analysis
Dielectric properties
Crystal structure
Kramers-Kronig relations
Microwaves
Infrared radiation
Electric network analyzers
Crystal microstructure
Solid state reactions
Field emission
Perovskite
X ray powder diffraction
Cations
Natural frequencies
Permittivity
Electron microscopes
Positive ions
Scanning
Temperature
perovskite

Keywords

  • Dielectric properties
  • Kramers-Kronig method
  • Niobates
  • Spectroscopy

ASJC Scopus subject areas

  • Ceramics and Composites

Cite this

Microwave dielectric properties and Far-infrared spectroscopic analysis of Ba5+nTinNb4O15+3n (0.3 < n < 1.2) ceramics. / Cho, In Sun; Kim, Jeong Ryeol; Kim, Dong Wook; Kim, Dong-Wan; Hong, Kug Sun.

In: Journal of the European Ceramic Society, Vol. 27, No. 8-9 SPEC. ISS., 08.04.2007, p. 3081-3086.

Research output: Contribution to journalArticle

Cho, In Sun ; Kim, Jeong Ryeol ; Kim, Dong Wook ; Kim, Dong-Wan ; Hong, Kug Sun. / Microwave dielectric properties and Far-infrared spectroscopic analysis of Ba5+nTinNb4O15+3n (0.3 < n < 1.2) ceramics. In: Journal of the European Ceramic Society. 2007 ; Vol. 27, No. 8-9 SPEC. ISS. pp. 3081-3086.
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