Low temperature sintering of the Ba2Ti9O20 ceramics using B2O3/CuO and BaCu(B2O5) additives

Jong Bong Lim; Young Hun Jeong; Noc Huan Nguyen; Sahn Nahm; Jong Hoo Paik; Jong Hee Kim; Hwack Joo Lee

doi:10.1016/j.jeurceramsoc.2006.11.043

Low temperature sintering of the Ba₂Ti₉O₂₀ ceramics using B₂O₃/CuO and BaCu(B₂O₅) additives

Jong Bong Lim, Young Hun Jeong, Noc Huan Nguyen, Sahn Nahm, Jong Hoo Paik, Jong Hee Kim, Hwack Joo Lee

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

46 Citations (Scopus)

Abstract

The effects of B₂O₃/CuO and BaCu(B₂O₅) additives on the sintering temperature and microwave dielectric properties of Ba₂Ti₉O₂₀ ceramics were investigated. The B₂O₃ added Ba₂Ti₉O₂₀ ceramics were not able to be sintered below 1000 °C. However, when both CuO and B₂O₃ were added, they were sintered below 900 °C and had the good microwave dielectric properties. It was suggested that a liquid phase with the composition of BaCu(B₂O₅) was formed during the sintering and assisted the densification of the Ba₂Ti₉O₂₀ ceramics at low temperature. BaCu(B₂O₅) powders were produced and used to reduce the sintering temperature of the Ba₂Ti₉O₂₀ ceramics. Good microwave dielectric properties of Qxf = 16,000 GHz, ε_r = 36.0 and τ_f = 9.11 ppm/°C were obtained for the Ba₂Ti₉O₂₀ ceramics containing 10.0 mol% BaCu(B₂O₅) sintered at 875 °C for 2 h.

Original language	English
Pages (from-to)	2875-2879
Number of pages	5
Journal	Journal of the European Ceramic Society
Volume	27
Issue number	8-9 SPEC. ISS.
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2006.11.043
Publication status	Published - 2007

Bibliographical note

Funding Information:
This work was supported by the Ministry of Commerce, Industry and Energy and one of the authors also acknowledges the financial support provided by the Ministry of Science and Technology through the NRL Project.

Keywords

A. Sintering
BaTiO
C. Dielectric properties
Dielectric properties

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

Access to Document

10.1016/j.jeurceramsoc.2006.11.043

Cite this

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title = "Low temperature sintering of the Ba2Ti9O20 ceramics using B2O3/CuO and BaCu(B2O5) additives",

abstract = "The effects of B2O3/CuO and BaCu(B2O5) additives on the sintering temperature and microwave dielectric properties of Ba2Ti9O20 ceramics were investigated. The B2O3 added Ba2Ti9O20 ceramics were not able to be sintered below 1000 °C. However, when both CuO and B2O3 were added, they were sintered below 900 °C and had the good microwave dielectric properties. It was suggested that a liquid phase with the composition of BaCu(B2O5) was formed during the sintering and assisted the densification of the Ba2Ti9O20 ceramics at low temperature. BaCu(B2O5) powders were produced and used to reduce the sintering temperature of the Ba2Ti9O20 ceramics. Good microwave dielectric properties of Qxf = 16,000 GHz, εr = 36.0 and τf = 9.11 ppm/°C were obtained for the Ba2Ti9O20 ceramics containing 10.0 mol% BaCu(B2O5) sintered at 875 °C for 2 h.",

keywords = "A. Sintering, BaTiO, C. Dielectric properties, Dielectric properties",

author = "Lim, {Jong Bong} and Jeong, {Young Hun} and Nguyen, {Noc Huan} and Sahn Nahm and Paik, {Jong Hoo} and Kim, {Jong Hee} and Lee, {Hwack Joo}",

note = "Funding Information: This work was supported by the Ministry of Commerce, Industry and Energy and one of the authors also acknowledges the financial support provided by the Ministry of Science and Technology through the NRL Project.",

year = "2007",

doi = "10.1016/j.jeurceramsoc.2006.11.043",

language = "English",

volume = "27",

pages = "2875--2879",

journal = "Journal of the European Ceramic Society",

issn = "0955-2219",

publisher = "Elsevier B.V.",

number = "8-9 SPEC. ISS.",

}

TY - JOUR

T1 - Low temperature sintering of the Ba2Ti9O20 ceramics using B2O3/CuO and BaCu(B2O5) additives

AU - Lim, Jong Bong

AU - Jeong, Young Hun

AU - Nguyen, Noc Huan

AU - Nahm, Sahn

AU - Paik, Jong Hoo

AU - Kim, Jong Hee

AU - Lee, Hwack Joo

N1 - Funding Information: This work was supported by the Ministry of Commerce, Industry and Energy and one of the authors also acknowledges the financial support provided by the Ministry of Science and Technology through the NRL Project.

PY - 2007

Y1 - 2007

N2 - The effects of B2O3/CuO and BaCu(B2O5) additives on the sintering temperature and microwave dielectric properties of Ba2Ti9O20 ceramics were investigated. The B2O3 added Ba2Ti9O20 ceramics were not able to be sintered below 1000 °C. However, when both CuO and B2O3 were added, they were sintered below 900 °C and had the good microwave dielectric properties. It was suggested that a liquid phase with the composition of BaCu(B2O5) was formed during the sintering and assisted the densification of the Ba2Ti9O20 ceramics at low temperature. BaCu(B2O5) powders were produced and used to reduce the sintering temperature of the Ba2Ti9O20 ceramics. Good microwave dielectric properties of Qxf = 16,000 GHz, εr = 36.0 and τf = 9.11 ppm/°C were obtained for the Ba2Ti9O20 ceramics containing 10.0 mol% BaCu(B2O5) sintered at 875 °C for 2 h.

AB - The effects of B2O3/CuO and BaCu(B2O5) additives on the sintering temperature and microwave dielectric properties of Ba2Ti9O20 ceramics were investigated. The B2O3 added Ba2Ti9O20 ceramics were not able to be sintered below 1000 °C. However, when both CuO and B2O3 were added, they were sintered below 900 °C and had the good microwave dielectric properties. It was suggested that a liquid phase with the composition of BaCu(B2O5) was formed during the sintering and assisted the densification of the Ba2Ti9O20 ceramics at low temperature. BaCu(B2O5) powders were produced and used to reduce the sintering temperature of the Ba2Ti9O20 ceramics. Good microwave dielectric properties of Qxf = 16,000 GHz, εr = 36.0 and τf = 9.11 ppm/°C were obtained for the Ba2Ti9O20 ceramics containing 10.0 mol% BaCu(B2O5) sintered at 875 °C for 2 h.

KW - A. Sintering

KW - BaTiO

KW - C. Dielectric properties

KW - Dielectric properties

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