Ferroelectric domain structure of lead-free potassium-sodium niobate ceramics

被引：67

作者：

Lopez-Juarez, Rigoberto ^{[1
]}

Novelo-Peralta, Omar ^{[1
]}

Gonzalez-Garcia, Federico ^{[2
]}

Rubio-Marcos, Fernando ^{[3
,4
]}

Villafuerte-Castrejon, Maria-Elena ^{[1
]}

机构：

[1] Univ Nacl Autonoma Mexico, Inst Invest Mat, Mexico City 04510, DF, Mexico

[2] Univ Autonoma Metropolitana Iztapalapa, Dept Ingn Proc & Hidraul, Mexico City 09340, DF, Mexico

[3] Univ Limoges, CNRS, Lab Sci Procedes Ceram & Traitements Surface, Ctr Europeen Ceram,UMR 6638, F-87068 Limoges, France

[4] CSIC, Inst Ceram & Vidrio, Electroceram Dept, E-28049 Madrid, Spain

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2011年 / 31卷 / 09期

关键词：

Grain growth; Electron microscopy; Ferroelectric properties; Niobates; (K0.5NA0.5)NBO3 SINGLE-CRYSTAL; SCANNING-ELECTRON-MICROSCOPY; VISUALIZATION; GROWTH;

D O I：

10.1016/j.jeurceramsoc.2011.02.031

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 complex domain structure of orthorhombic (K(0.5)Na(0.5))NbO(3) (KNN) piezoelectric ceramics has been studied by SEM. The study was performed in samples prepared by microwave-hydrothermal synthesis. The identification of the domain structure has been afforded in KNN ceramics. Abnormal grain growth was observed in the microstructure of KNN ceramics, with an average grain size of 63 mu m. Most of the ferroelectric domains were 90 degrees type with square-net and herringbone structures alternating a-a and a-c configurations. In addition, 180 degrees domains were also identified arranged in the common watermark pattern. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：1861 / 1864

页数：4

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