Structural and electrical properties of Nd ion modified lead zirconate titanate nanopowders and ceramics

被引：0

作者：

王大伟 ^{[1
]}

张德庆 ^{[1
,2
]}

袁杰 ^{[3
]}

赵全亮 ^{[1
]}

刘红梅 ^{[1
]}

王之英 ^{[1
]}

曹茂盛 ^{[1
]}

机构：

[1] School of Material Science and Engineering,Beijing Institute of Technology

[2] College of Chemical Engineering,Qiqihar University

[3] School of Information Engineering,Central University for Nationality

来源：

Chinese Physics B | 2009年 / 06期

关键词：

PNZT; ferroelectric properties; piezoelectric properties; sol-gel method;

D O I：

暂无

中图分类号：

TQ174.1 [基础理论]; TB383.1 [];

学科分类号：

0805 ; 080502 ; 070205 ; 080501 ; 1406 ;

摘要：

A modified sol-gel method is used for synthesizing Nd ion doped lead zirconate titanate nanopowders Pb1-3x/2NdxZr0.52Ti0.48O3 (PNZT) in an ethylene glycol system with zirconium nitrate as zirconium source. The results show that it is critical to add lead acetate after the reaction of zirconium nitrate with tetrabutyl titanate in the ethylene glycol system for preparing PNZT with an exact fraction of titanium content. It has been observed that the dopant of excess Nd ions can effectively improve the sintered densification and activity of the PNZT ceramics.Piezoelectric, dielectric and ferroelectric properties of the PNZT ceramics are remarkably enhanced as compared with those of monolithic lead zirconate titanate (PZT). Especially, the supreme values of piezoelectric constant (d33) and dielectric constant (ε) for the PNZT are both about two times that of the monolithic PZT and moreover, the remnant polarization (Pr) also increases by 30%. According to the analysis of the structures and properties, we attribute the improvement in electrical properties to the lead vacancies caused by the doping of Nd ions.

引用

页码：2596 / 2602

页数：7

共 3 条

[1] PROPERTIES OF LOW-TEMPERATURE SINTERED NEODYMIUM-DOPED LEAD-ZIRCONATE-TITANATE CERAMICS [J].

TANDON, RP ;

SINGH, V ;

SINGH, R .

JOURNAL OF MATERIALS SCIENCE LETTERS, 1994, 13 (11) :810-812

[2]

Zhang D Q,Wang S J,Sun H,Wang X L,Cao M S. J.Sol-Gel.Sci.Techn . 2007

[3]

Shannigrahia S R,Taya F E H,Yaoa K,Choudharyb R N P. J.Eur.Ceram.Soc . 2004

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