Noncontact temperature-dependent fluorescence depicting phase transition in Nd3+-doped (K0.5Na0.5)NbO3 ceramics - Details

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Abstract：

A　noncontact　temperature　measurement　technique　based　on　fluorescence　variation　was　used　to　depict　the　temperature-dependent　evolution　of　phase　transition　of　a　ferroelectric　material,　that　is,　Nd3+-doped　(K0.5Na0.5)NbO3　ceramics.　The　slope　of　the　fluorescence　intensity　curve　changes　dramatically　in　the　two　temperature　regions　of　450-475 K　and　650-675 K,　which　correspond　to　orthorhombic-tetragonal　and　tetragonal-cubic　transitions　as　confirmed　by　the　temperature　dependence　of　dielectric　constant.　Furthermore,　the　small　deviations　in　δTO-T　and　δTc　indicate　the　good　accuracy　of　this　noncontact　method.　This　work　can　guide　other　ergodic　ferroelectrics　to　describe　phase　experience　by　the　noncontact　fluorescence　method.　©　2019　The　American　Ceramic　Society

Keyword：

a noncontact technique; phase transition description; temperature-dependent fluorescence

Community：

[ 1 ] [Wang, H.]Department of Material Science and Engineering, Fuzhou University, Fuzhou, China
[ 2 ] [Deng, B.]Department of Material Science and Engineering, Fuzhou University, Fuzhou, China
[ 3 ] [Lin, C.]Department of Material Science and Engineering, Fuzhou University, Fuzhou, China
[ 4 ] [Lin, C.]Key Laboratory of Eco-materials Advanced Technology, Fujian Province University, Fuzhou, China
[ 5 ] [Wu, X.]Department of Material Science and Engineering, Fuzhou University, Fuzhou, China
[ 6 ] [Wu, X.]Key Laboratory of Eco-materials Advanced Technology, Fujian Province University, Fuzhou, China
[ 7 ] [Cheng, Y.]Fujian Institute of Research on the Structure, Fuzhou, China
[ 8 ] [Lin, T.]Department of Material Science and Engineering, Fuzhou University, Fuzhou, China
[ 9 ] [Lin, T.]Key Laboratory of Eco-materials Advanced Technology, Fujian Province University, Fuzhou, China
[ 10 ] [Zheng, X.]Department of Material Science and Engineering, Fuzhou University, Fuzhou, China
[ 11 ] [Zheng, X.]Key Laboratory of Eco-materials Advanced Technology, Fujian Province University, Fuzhou, China
[ 12 ] [Yu, X.]National Analysis Center for Iron & Steel, Central Iron and Steel Research Institute, Beijing, China

Reprint 's Address：

[Lin, C.]Department of Material Science and Engineering, Fuzhou UniversityChina

Email：

lincong@fzu.edu.cn

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Source ：

Journal of the American Ceramic Society

ISSN： 0002-7820

Year： 2020

Issue： 2

Volume： 103

Page： 784-789

3 . 7 8 4

JCR@2020

3 . 5 0 0

JCR@2023

ESI HC Threshold：196

JCR Journal Grade：1

CAS Journal Grade：2

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ESI Highly Cited Papers on the List： 0 Unfold All

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30 Days PV： 0

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