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Low-Temperature Sintering and Microwave Dielectric Properties of the Li2CO3-Added Ba2V2O7 Ceramics

Authors
Joung, Mi-RiKim, Jin-SeongSong, Myung-EunNahm, SahnPaik, Jong-Hoo
Issue Date
4월-2010
Publisher
WILEY-BLACKWELL
Citation
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, v.93, no.4, pp.934 - 936
Indexed
SCIE
SCOPUS
Journal Title
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
Volume
93
Number
4
Start Page
934
End Page
936
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/116725
DOI
10.1111/j.1551-2916.2009.03504.x
ISSN
0002-7820
Abstract
Li2CO3 was added to Ba2V2O7 ceramics at various contents up to 20 mol% to decrease their sintering time and temperature. The Li2CO3-added Ba2V2O7 ceramics sintered at 750 degrees C for 2 h had a dense microstructure with a high density. A liquid phase, which existed as an amorphous phase after cooling, was formed during the sintering due to the melting of Li2CO3 and aided the densification of the specimens. The 6.0 mol% Li2CO3-added ceramic sintered at 750 degrees C showed good microwave dielectric properties of epsilon(r)=10.93, Q x f=74 513 GHz, and tau(f)=-19.86 ppm/degrees C, indicating that the Li2CO3-added Ba2V2O7 ceramic is a good candidate material for low-temperature cofired ceramics.
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