Structure and Dielectric Properties of Na1/2Bi1/2TiO3-BaTiO3 Solid Solutions

被引：12

作者：

Dunce, M. ^{[1
]}

Birks, E. ^{[1
]}

Antonova, M. ^{[1
]}

Plaude, A. ^{[1
]}

Ignatans, R. ^{[1
]}

Sternberg, A. ^{[1
]}

机构：

[1] Univ Latvia, Inst Solid State Phys, LV-1063 Riga, Latvia

来源：

FERROELECTRICS | 2013年 / 447卷 / 01期

关键词：

NBT; NBT-BT; solid solution; relaxor; phase diagram; SYSTEM;

D O I：

10.1080/00150193.2013.821382

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Dielectric properties, polarization and x-ray diffraction are studied for (1-x)Na1/2Bi1/2TiO3-xBaTiO(3) solid solutions in a concentration range above the morphotropic phase boundary. It is showed that all the studied compositions have tetragonal structure with maximal tetragonality slightly above the morphotropic phase boundary. Ferroelectric relaxor behavior is observed in a wide concentration range of BaTiO3. Stability of the relaxor state decreases with increasing BaTiO3 concentration, but only for compositions with low Na1/2Bi1/2TiO3 content the normal ferroelectric-paraelectric phase transition, which is characteristic to pure BaTiO3, occurs. Mechanisms, which influence the change of the phase transition character and promote the appearance of the relaxor state, are discussed. The phase diagram of (1-x)Na1/2Bi1/2TiO3-xBaTiO(3) is revised.

引用

页码：1 / 8

页数：8

共 20 条

[1] Phase transition sequence in sodium bismuth titanate observed using high-resolution x-ray diffraction [J].

Aksel, Elena ;

Forrester, Jennifer S. ;

Kowalski, Benjamin ;

Jones, Jacob L. ;

Thomas, Pam A. .

APPLIED PHYSICS LETTERS, 2011, 99 (22)

[2] Phase transitions and phase diagram of the ferroelectric perovskite (Na0.5Bi0.5)1-xBaxTiO3 by anelastic and dielectric measurements [J].

Cordero, F. ;

Craciun, F. ;

Trequattrini, F. ;

Mercadelli, E. ;

Galassi, C. .

PHYSICAL REVIEW B, 2010, 81 (14)

[3] Anomalous phase transitions of lead-free piezoelectric xNa0.5Bi0.5TiO3-(1-x)BaTiO3 solid solutions with enhanced phase transition temperatures [J].

Datta, K. ;

Thomas, P. A. ;

Roleder, K. .

PHYSICAL REVIEW B, 2010, 82 (22)

[4] Enhanced tetragonality in lead-free piezoelectric (1-x)BaTiO3-xNa1/2Bi1/2TiO3 solid solutions where x=0.05-0.40 [J].

Datta, K. ;

Roleder, K. ;

Thomas, P. A. .

JOURNAL OF APPLIED PHYSICS, 2009, 106 (12)

[5] Influence of dc-bias on phase stability in Mn-doped Na0.5Bi0.5TiO3-5.6 at. %BaTiO3 single crystals [J].

Ge, Wenwei ;

Cao, Hu ;

Li, Jiefang ;

Viehland, D. ;

Zhang, Qinhui ;

Luo, Haosu .

APPLIED PHYSICS LETTERS, 2009, 95 (16)

[6] Sodium-bismuth titanate based lead-free ferroelectric materials [J].

Gomah-Pettry, JR ;

Saïd, E ;

Marchet, P ;

Mercurio, JP .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2004, 24 (06) :1165-1169

[7] Composition-induced antiferroelectric phase and giant strain in lead-free (Nay,Biz)Ti1-xO3(1-x)-xBaTiO3 ceramics [J].

Guo, Yiping ;

Gu, Mingyuan ;

Luo, Haosu ;

Liu, Yun ;

Withers, Ray L. .

PHYSICAL REVIEW B, 2011, 83 (05)

[8]

Iona F., 1962, FERROELECTRIC CRYSTA

[9] Evolving morphotropic phase boundary in lead-free (Bi1/2Na1/2)TiO3-BaTiO3 piezoceramics [J].

Jo, Wook ;

Daniels, John E. ;

Jones, Jacob L. ;

Tan, Xiaoli ;

Thomas, Pamela A. ;

Damjanovic, Dragan ;

Roedel, Juergen .

JOURNAL OF APPLIED PHYSICS, 2011, 109 (01)

[10] Investigation of the structure and phase transitions in the novel A-site substituted distorted perovskite compound Na0.5Bi0.5TiO3 [J].

Jones, GO ;

Thomas, PA .

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE CRYSTAL ENGINEERING AND MATERIALS, 2002, 58 :168-178

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