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Microstructure and Microwave Dielectric Properties of the Li2CO3-Added Sr2V2O7 Ceramics

Authors
Joung, Mi-RiKim, Jin-SeongSong, Myung-EunNahm, SahnPaik, Jong-Hoo
Issue Date
8월-2010
Publisher
WILEY-BLACKWELL
Citation
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, v.93, no.8, pp.2132 - 2135
Indexed
SCIE
SCOPUS
Journal Title
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
Volume
93
Number
8
Start Page
2132
End Page
2135
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/115974
DOI
10.1111/j.1551-2916.2010.03676.x
ISSN
0002-7820
Abstract
The addition of Li2CO3 to Sr2V2O7 ceramics decreased their sintering temperature and time. A dense microstructure was developed for the specimens sintered at 750 degrees-850 degrees C due to the melting of Li2CO3 during the sintering. For the specimens sintered at 800 degrees C, the grain size was considerably increased when the Li2CO3 content exceeded 1.0 mol%. The Q x f value was increased by the Li2CO3 addition due to the increased density and grain size. In particular, a high Q x f value of 73 800 GHz with epsilon(r) and tau(f) values of 9.94 and -28.8 ppm/degrees C, respectively, was obtained for the specimen containing 3.0 mol% Li2CO3 sintered at 800 degrees C for 2h.
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