Dielectric relaxation of NKN-BNT porous green body

Laijun Liu, Meixia Wu, Zhao Yang, Huiqing Fan, Liang Fang

科研成果: 书/报告/会议事项章节会议稿件同行评审

3 引用 (Scopus)

摘要

0.98Na0.5K0.5NbO3 -0.02Bi 0.5Na0.5TiO3 (NKNBNT) nano-powder was fabricated by mechanical alloying method. The NKNBNT particle and water molecular on the particle surface became an insulator/ conductor system because of the surface defect and moisture absorption of Na and K ions. A large non-Debye relaxation was found in the range of 250 to 450K in this system. Its dielectric constant is higher 3-4 order of magnitude than that of pure NKN ceramics. This relaxation includes three regions, and the maximum of dielectric constant is near percolation value. This porous composite is expected to be used as a super capacitor or moisture device.

源语言英语
主期刊名2011 Chinese Materials Conference
出版商Elsevier Ltd
793-798
页数6
ISBN(印刷版)9781627485838
DOI
出版状态已出版 - 2012
已对外发布

出版系列

姓名Procedia Engineering
27
ISSN(印刷版)1877-7058

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