Ferroelectricity of Pr2Ti2O7 ceramics with super high Curie point

被引：39

作者：

Gao, Z. P. ^{[1
]}

Yan, H. X. ^{[1
,2
]}

Ning, H. P. ^{[1
,2
]}

Reece, M. J. ^{[1
,2
]}

机构：

[1] Univ London, Sch Engn & Mat Sci, London E1 4NS, England

[2] Nanoforce Technol Ltd, London E1 4NS, England

来源：

ADVANCES IN APPLIED CERAMICS | 2013年 / 112卷 / 02期

关键词：

Ferroelectric; Piezoelectric; Perovskite-like layered structure; Curie point; High temperature; PIEZOELECTRIC CERAMICS; DIELECTRIC-PROPERTIES;

D O I：

10.1179/1743676112Y.0000000030

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The perovskite-like layer structured praseodymium titanate (Pr2Ti2O7; PTO) is a good candidate for high temperature piezoelectric application because of its high Curie point. Single phase, dense, textured PTO ceramic was prepared by spark plasma sintering using a two-step method for the first time. The Lotgering orientation factor was 0? 87. The Curie point of PTO is >1555 +/- 5 degrees C. The dielectric constant increases with grain size due to the decreasing effect of grain boundaries and increasing extrinsic contribution from the ferroelectric domain wall movement. For the first time, PTO was shown to be ferroelectric because it showed piezoelectric activity after poling (d(33)=0.5 +/- 0.1 pC N-1).

引用

页码：69 / 74

页数：6

共 23 条

[1] MEASUREMENT OF PIEZOELECTRIC COEFFICIENT OF QUARTZ USING FABRY-PEROT DILATOMETER [J].

BOTTOM, VE .

JOURNAL OF APPLIED PHYSICS, 1970, 41 (10) :3941-&

[2] Density functional calculations of the structural, electronic, and ferroelectric properties of high-k titanate Re2Ti2O7 (Re=La and Nd) [J].

Bruyer, Emilie ;

Sayede, Adlane .

JOURNAL OF APPLIED PHYSICS, 2010, 108 (05)

[3]

Chen A, 2002, INTEGR FERROELECTR, V42, P419

[4] Materials for high temperature piezoelectric transducers [J].

Damjanovic, D .

CURRENT OPINION IN SOLID STATE & MATERIALS SCIENCE, 1998, 3 (05) :469-473

[5] The role of interfaces on an apparent grain size effect on the dielectric properties for ferroelectric barium titanate ceramics [J].

Frey, MH ;

Xu, Z ;

Han, P ;

Payne, DA .

FERROELECTRICS, 1998, 206 (1-4) :337-353

[6] FERROELECTRIC, ELECTROOPTIC AND PIEZOELECTRIC PROPERTIES OF ND2TI2O7SINGLE CRYSTAL [J].

KIMURA, M ;

NANAMATS.S ;

KAWAMURA, I ;

MATSUSHI.S .

JAPANESE JOURNAL OF APPLIED PHYSICS, 1974, 13 (09) :1473-1474

[7]

Kozmin PA, 1997, INORG MATER+, V33, P850

[8] Domain switching in polycrystalline ferroelectric ceramics [J].

Li, JY ;

Rogan, RC ;

Üstündag, E ;

Bhattacharya, K .

NATURE MATERIALS, 2005, 4 (10) :776-781

[9] TOPOTACTICAL REACTIONS WITH FERRIMAGNETIC OXIDES HAVING HEXAGONAL CRYSTAL STRUCTURES .1. [J].

LOTGERING, FK .

JOURNAL OF INORGANIC & NUCLEAR CHEMISTRY, 1959, 9 (02) :113-+

[10] Electric conductivity and proton motion below superionic transition on Rb3H(SeO4)2 [J].

Matsuo, Y ;

Takahashi, K ;

Ikehata, S .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2001, 70 (10) :2934-2938

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