Effective synthesis to fabricate a giant dielectric-constant material CaCu3Ti4O12 via solid state reactions

In this study, we effectively synthesized a giant dielectric-constant material CaCu3Ti4O12 (CCTO) by using a solid-state reaction method that was composed of two main chemical reactions. Comparing with typical calcining conditions, our procedures are much less energy- and time-consuming. When prepar...

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Bibliographic Details
Published inJournal of Ceramic Processing Research, 10(5) pp. 696 - 699
Main Authors Wen Xiang Yuan, Wai Ning Mei, Sui Kong Hark
Format Journal Article
LanguageEnglish
Published 세라믹연구소 01.10.2009
Subjects
재료공학
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Summary:In this study, we effectively synthesized a giant dielectric-constant material CaCu3Ti4O12 (CCTO) by using a solid-state reaction method that was composed of two main chemical reactions. Comparing with typical calcining conditions, our procedures are much less energy- and time-consuming. When preparing our CCTO, we applied a momentarily high temperature heating at the end of the calcination, then followed it by a typical sintering process. We found this additional heating converts the otherwise mixed-phase products into a pure phase and the CCTO samples prepared this special way possess a large dielectric constant, up to 19,000. KCI Citation Count: 12
Bibliography:G704-001111.2009.10.5.005
ISSN:1229-9162
2672-152X