Low-temperature sintering and microwave dielectric properties of Ba5Nb4O15 with ZnB2 O4 glass

Jeong Ryeol Kim; Dong Wan Kim; Hyun Suk Jung; Kug Sun Hong

doi:10.1016/j.jeurceramsoc.2005.09.065

Low-temperature sintering and microwave dielectric properties of Ba₅Nb₄O₁₅ with ZnB₂ O₄ glass

Jeong Ryeol Kim, Dong Wan Kim, Hyun Suk Jung, Kug Sun Hong

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

35 Citations (Scopus)

Abstract

The Influence of ZnB₂O₄ glass addition on the sintering temperature and microwave dielectric properties of Ba₅Nb₄O₁₅ has been investigated using dilatometry, X-ray diffraction, scanning electron microscopy and network analyzer. It was found that a small amount of glass addition to Ba₅Nb₄O₁₅ lowered the sintering temperature from 1400 to 900 °C. The reduced sintering temperature was attributed to the formation of ZnB₂O₄ liquid phase and B₂O₃-rich liquid phases such as Ba₃B₂O₆. The Ba₅ Nb₄O₁₅ ceramics with ZnB₂O₄ glass, sintered at a low temperature, exhibited good microwave dielectric characteristics, i.e., a quality factor (Q × f) = 12,100 GHz, a relative dielectric constant (ε_r) = 40, a temperature coefficient of resonant frequency (τ_f) = 48 ppm/°C. The dielectric properties were discussed in terms of the densification of specimens and the influence of glassy phases such as Ba₃B₂O₆ and ZnB₂O₄.

Original language	English
Pages (from-to)	2105-2109
Number of pages	5
Journal	Journal of the European Ceramic Society
Volume	26
Issue number	10-11
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2005.09.065
Publication status	Published - 2006
Externally published	Yes

Keywords

BaNbO
Dielectric properties
Glass
Sintering
X-ray method

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

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@article{e214f864fa094595a3bb7f2e54027680,

title = "Low-temperature sintering and microwave dielectric properties of Ba5Nb4O15 with ZnB2 O4 glass",

abstract = "The Influence of ZnB2O4 glass addition on the sintering temperature and microwave dielectric properties of Ba5Nb4O15 has been investigated using dilatometry, X-ray diffraction, scanning electron microscopy and network analyzer. It was found that a small amount of glass addition to Ba5Nb4O15 lowered the sintering temperature from 1400 to 900 °C. The reduced sintering temperature was attributed to the formation of ZnB2O4 liquid phase and B2O3-rich liquid phases such as Ba3B2O6. The Ba5 Nb4O15 ceramics with ZnB2O4 glass, sintered at a low temperature, exhibited good microwave dielectric characteristics, i.e., a quality factor (Q × f) = 12,100 GHz, a relative dielectric constant (εr) = 40, a temperature coefficient of resonant frequency (τf) = 48 ppm/°C. The dielectric properties were discussed in terms of the densification of specimens and the influence of glassy phases such as Ba3B2O6 and ZnB2O4.",

keywords = "BaNbO, Dielectric properties, Glass, Sintering, X-ray method",

author = "Kim, {Jeong Ryeol} and Kim, {Dong Wan} and Jung, {Hyun Suk} 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 Science and Technology, Republic of Korea.",

year = "2006",

doi = "10.1016/j.jeurceramsoc.2005.09.065",

language = "English",

volume = "26",

pages = "2105--2109",

journal = "Journal of the European Ceramic Society",

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AU - Kim, Jeong Ryeol

AU - Kim, Dong Wan

AU - Jung, Hyun Suk

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 Science and Technology, Republic of Korea.

PY - 2006

Y1 - 2006

N2 - The Influence of ZnB2O4 glass addition on the sintering temperature and microwave dielectric properties of Ba5Nb4O15 has been investigated using dilatometry, X-ray diffraction, scanning electron microscopy and network analyzer. It was found that a small amount of glass addition to Ba5Nb4O15 lowered the sintering temperature from 1400 to 900 °C. The reduced sintering temperature was attributed to the formation of ZnB2O4 liquid phase and B2O3-rich liquid phases such as Ba3B2O6. The Ba5 Nb4O15 ceramics with ZnB2O4 glass, sintered at a low temperature, exhibited good microwave dielectric characteristics, i.e., a quality factor (Q × f) = 12,100 GHz, a relative dielectric constant (εr) = 40, a temperature coefficient of resonant frequency (τf) = 48 ppm/°C. The dielectric properties were discussed in terms of the densification of specimens and the influence of glassy phases such as Ba3B2O6 and ZnB2O4.

AB - The Influence of ZnB2O4 glass addition on the sintering temperature and microwave dielectric properties of Ba5Nb4O15 has been investigated using dilatometry, X-ray diffraction, scanning electron microscopy and network analyzer. It was found that a small amount of glass addition to Ba5Nb4O15 lowered the sintering temperature from 1400 to 900 °C. The reduced sintering temperature was attributed to the formation of ZnB2O4 liquid phase and B2O3-rich liquid phases such as Ba3B2O6. The Ba5 Nb4O15 ceramics with ZnB2O4 glass, sintered at a low temperature, exhibited good microwave dielectric characteristics, i.e., a quality factor (Q × f) = 12,100 GHz, a relative dielectric constant (εr) = 40, a temperature coefficient of resonant frequency (τf) = 48 ppm/°C. The dielectric properties were discussed in terms of the densification of specimens and the influence of glassy phases such as Ba3B2O6 and ZnB2O4.

KW - BaNbO

KW - Dielectric properties

KW - Glass

KW - Sintering

KW - X-ray method

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