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

doi:10.1016/j.jeurceramsoc.2006.11.030

Microwave dielectric properties and Far-infrared spectroscopic analysis of Ba_5+nTi_nNb₄O_15+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 journal › Article › peer-review

14 Citations (Scopus)

Abstract

Ba_5+nTi_nNb₄O_15+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 (ε_r) and the temperature coefficient of resonant frequency (τ_f) 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 language	English
Pages (from-to)	3081-3086
Number of pages	6
Journal	Journal of the European Ceramic Society
Volume	27
Issue number	8-9 SPEC. ISS.
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2006.11.030
Publication status	Published - 2007
Externally published	Yes

Bibliographical note

Funding Information:
This research was supported by a grant from the Center for Advanced Materials Processing (CAMP) of the 21st Century Frontier R&D Program funded by the Ministry of Commerce Industry and Energy (MOCIE), Republic of Korea.

Keywords

Dielectric properties
Kramers-Kronig method
Niobates
Spectroscopy

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

Access to Document

10.1016/j.jeurceramsoc.2006.11.030

Cite this

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

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.",

keywords = "Dielectric properties, Kramers-Kronig method, Niobates, Spectroscopy",

author = "Cho, {In Sun} and Kim, {Jeong Ryeol} and Kim, {Dong Wook} and Kim, {Dong Wan} and Hong, {Kug Sun}",

note = "Funding Information: This research was supported by a grant from the Center for Advanced Materials Processing (CAMP) of the 21st Century Frontier R&D Program funded by the Ministry of Commerce Industry and Energy (MOCIE), Republic of Korea.",

year = "2007",

doi = "10.1016/j.jeurceramsoc.2006.11.030",

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journal = "Journal of the European Ceramic Society",

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T1 - Microwave dielectric properties and Far-infrared spectroscopic analysis of Ba5+nTinNb4O15+3n (0.3 < n < 1.2) ceramics

AU - Cho, In Sun

AU - Kim, Jeong Ryeol

AU - Kim, Dong Wook

AU - Kim, Dong Wan

AU - Hong, Kug Sun

N1 - Funding Information: This research was supported by a grant from the Center for Advanced Materials Processing (CAMP) of the 21st Century Frontier R&D Program funded by the Ministry of Commerce Industry and Energy (MOCIE), Republic of Korea.

PY - 2007

Y1 - 2007

N2 - 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.

AB - 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.

KW - Dielectric properties

KW - Kramers-Kronig method

KW - Niobates

KW - Spectroscopy

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DO - 10.1016/j.jeurceramsoc.2006.11.030

M3 - Article

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IS - 8-9 SPEC. ISS.

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