A new microwave dielectric ceramic for LTCC applications

Qun Zeng; Wei Li; Jian Lin Shi; Jing Kun Guo; Ming Wen Zuo; Wen Jun Wu

doi:10.1111/j.1551-2916.2006.00942.x

A new microwave dielectric ceramic for LTCC applications

Qun Zeng
, Wei Li^*
, Jian Lin Shi
, Jing Kun Guo
, Ming Wen Zuo
, Wen Jun Wu

^*Corresponding author for this work

CAS - Shanghai Institute of Ceramics

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

98 Scopus citations

Abstract

A new low-sintering temperature microwave dielectric ceramic, the Li ₂TiO₃ solid solution, was found and investigated in the Li₂O-Nb₂O₅-TiO₂ system. The compound with the composition of Li_2.081Ti_0.676Nb _0.243O₃ crystallizes as a monoclinic structure. This new microwave dielectric ceramic shows a relatively low permittivity (∼20), high Q × f values up to 50000 (7.8 GHz), and near-zero temperature coefficients (13 ppm/°C), which were obtained via sintering at 1100°C. The addition of ≤ 2 wt% B₂O₃ was very effective in lowering the sintering temperature (T_s), and dense ceramics could be obtained at T_s ≤ 900°C. The addition of B₂O ₃ does not induce apparent degradation in the microwave properties but lowers the τ_f value to near zero. It is obvious that the ceramics could be promising candidates for multilayer low-temperature co-fired ceramics applications.

Original language	English
Pages (from-to)	1733-1735
Number of pages	3
Journal	Journal of the American Ceramic Society
Volume	89
Issue number	5
DOIs	https://doi.org/10.1111/j.1551-2916.2006.00942.x
State	Published - May 2006
Externally published	Yes

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10.1111/j.1551-2916.2006.00942.x

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@article{c03845ef09ec460ca8c79d820af987b5,

title = "A new microwave dielectric ceramic for LTCC applications",

abstract = "A new low-sintering temperature microwave dielectric ceramic, the Li 2TiO3 solid solution, was found and investigated in the Li2O-Nb2O5-TiO2 system. The compound with the composition of Li2.081Ti0.676Nb 0.243O3 crystallizes as a monoclinic structure. This new microwave dielectric ceramic shows a relatively low permittivity (∼20), high Q × f values up to 50000 (7.8 GHz), and near-zero temperature coefficients (13 ppm/°C), which were obtained via sintering at 1100°C. The addition of ≤ 2 wt\% B2O3 was very effective in lowering the sintering temperature (Ts), and dense ceramics could be obtained at Ts ≤ 900°C. The addition of B2O 3 does not induce apparent degradation in the microwave properties but lowers the τf value to near zero. It is obvious that the ceramics could be promising candidates for multilayer low-temperature co-fired ceramics applications.",

author = "Qun Zeng and Wei Li and Shi, \{Jian Lin\} and Guo, \{Jing Kun\} and Zuo, \{Ming Wen\} and Wu, \{Wen Jun\}",

year = "2006",

month = may,

doi = "10.1111/j.1551-2916.2006.00942.x",

language = "英语",

volume = "89",

pages = "1733--1735",

journal = "Journal of the American Ceramic Society",

issn = "0002-7820",

publisher = "Wiley-Blackwell",

number = "5",

}

TY - JOUR

T1 - A new microwave dielectric ceramic for LTCC applications

AU - Zeng, Qun

AU - Li, Wei

AU - Shi, Jian Lin

AU - Guo, Jing Kun

AU - Zuo, Ming Wen

AU - Wu, Wen Jun

PY - 2006/5

Y1 - 2006/5

N2 - A new low-sintering temperature microwave dielectric ceramic, the Li 2TiO3 solid solution, was found and investigated in the Li2O-Nb2O5-TiO2 system. The compound with the composition of Li2.081Ti0.676Nb 0.243O3 crystallizes as a monoclinic structure. This new microwave dielectric ceramic shows a relatively low permittivity (∼20), high Q × f values up to 50000 (7.8 GHz), and near-zero temperature coefficients (13 ppm/°C), which were obtained via sintering at 1100°C. The addition of ≤ 2 wt% B2O3 was very effective in lowering the sintering temperature (Ts), and dense ceramics could be obtained at Ts ≤ 900°C. The addition of B2O 3 does not induce apparent degradation in the microwave properties but lowers the τf value to near zero. It is obvious that the ceramics could be promising candidates for multilayer low-temperature co-fired ceramics applications.

AB - A new low-sintering temperature microwave dielectric ceramic, the Li 2TiO3 solid solution, was found and investigated in the Li2O-Nb2O5-TiO2 system. The compound with the composition of Li2.081Ti0.676Nb 0.243O3 crystallizes as a monoclinic structure. This new microwave dielectric ceramic shows a relatively low permittivity (∼20), high Q × f values up to 50000 (7.8 GHz), and near-zero temperature coefficients (13 ppm/°C), which were obtained via sintering at 1100°C. The addition of ≤ 2 wt% B2O3 was very effective in lowering the sintering temperature (Ts), and dense ceramics could be obtained at Ts ≤ 900°C. The addition of B2O 3 does not induce apparent degradation in the microwave properties but lowers the τf value to near zero. It is obvious that the ceramics could be promising candidates for multilayer low-temperature co-fired ceramics applications.

UR - https://www.scopus.com/pages/publications/33646586357

U2 - 10.1111/j.1551-2916.2006.00942.x

DO - 10.1111/j.1551-2916.2006.00942.x

M3 - 文章

AN - SCOPUS:33646586357

SN - 0002-7820

VL - 89

SP - 1733

EP - 1735

JO - Journal of the American Ceramic Society

JF - Journal of the American Ceramic Society

IS - 5

ER -

A new microwave dielectric ceramic for LTCC applications

Abstract

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