Preparation of Giant Dielectric CaCu3Ti4O12 Ceramics via the Molten Salt Method from NaCl Flux

Wei Wan, Jian Yang, Wen Xiang Yuan, Xiaojin Zhao, Changkun Liu, Tai Qiu

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

CaCu3Ti4O12 (CCTO) powders have been synthesized by the molten salt method using NaCl as the flux. The effects of the synthesis temperature on their crystal structures and micromorphologies were investigated in this study. A new secondary phase, Na2Ti6O13, was found in the as-synthesized powders when the temperature exceeds 800°C. Na2Ti6O13 and CuO secondary phases result in a significant increase in the dielectric constant and a certain increase in the dielectric loss. 800°C is a suitable synthesis temperature to prepare CCTO ceramics with relatively good dielectric performance using NaCl as the molten salt.

Original languageEnglish
Pages (from-to)382-388
Number of pages7
JournalInternational Journal of Applied Ceramic Technology
Volume13
Issue number2
DOIs
StatePublished - 1 Mar 2016
Externally publishedYes

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