Synthesis of NaNbO3 Nanopowder by Sol-Gel and Its Densification by Spark Plasma Sintering [NaNbO3的溶胶-凝胶制备与放电等离子烧结] - Details

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

Email：

ydhou@bjut.edu.cn

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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： 2

Affiliated Colleges：

信息学部

材料与制造学部材料科学与工程学院

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