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Author:

Zhang, Y. (Zhang, Y..) (Scholars:张勇) | Hou, Y. (Hou, Y..) | Zheng, M. (Zheng, M..) | Zhang, X. (Zhang, X..) | Zhu, M. (Zhu, M..)

Indexed by:

Scopus PKU CSCD

Abstract:

The sol-gel method in combination with spark plasma sintering (SPS) has been applied to prepare NaNbO3 fine-grained ceramics. The results reveal that perovskite type NaNbO3 nano-powders with mean size of 40 nm can be synthesized by an aqueous sol-gel route. Subsequently, using the resulted NaNbO3 nano-powders as precursors, dense ceramics with mean grain size of 1~2 μm are obtained by SPS method. The electrical measurement confirms that the defect dipoles play the roles in assisting antiferroelectric to ferroelectric (AFE-FE) phase transition. Moreover, the dielectric constant exhibits good frequency stability and the loss tangent is as low as 0.018 (1 kHz). © 2018, Science Press. All right reserved.

Keyword:

Ferroelectric transition; NaNbO3 ceramic; Sol-gel; Spark plasma sintering

Author Community:

  • [ 1 ] [Zhang, Y.]College of Materials Science and Engineering, Beijing University of Technology, Beijing, 100124, China
  • [ 2 ] [Hou, Y.]College of Materials Science and Engineering, Beijing University of Technology, Beijing, 100124, China
  • [ 3 ] [Zheng, M.]College of Materials Science and Engineering, Beijing University of Technology, Beijing, 100124, China
  • [ 4 ] [Zhang, X.]College of Materials Science and Engineering, Beijing University of Technology, Beijing, 100124, China
  • [ 5 ] [Zhu, M.]College of Materials Science and Engineering, Beijing University of Technology, Beijing, 100124, China

Reprint Author's Address:

  • [Hou, Y.]College of Materials Science and Engineering, Beijing University of TechnologyChina

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Source :

Rare Metal Materials and Engineering

ISSN: 1002-185X

Year: 2018

Volume: 47

Page: 70-74

0 . 7 0 0

JCR@2022

ESI Discipline: MATERIALS SCIENCE;

ESI HC Threshold:260

JCR Journal Grade:4

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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