Electrical properties of La3+-doped (Na0.5Bi0.5)0.94Ba0.06TiO3 ceramics

被引：76

作者：

Li, HD ^{[1
]}

Feng, CD ^{[1
]}

Xiang, PH ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, Shanghai 200050, Peoples R China

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 2003年 / 42卷 / 12期

关键词：

piezoelectric ceramics; relaxor; lead-free; (Na1/2Bi1/2)TiO3-BaTiO3; diffuse phase transition;

D O I：

10.1143/JJAP.42.7387

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

(1 - x)(Na1/2Bi1/2)TiO3-xBaTiO(3) (x = 0.06) with 0-5 at.% lanthanum was prepared by the conventional mixed oxide method. The effect of La3+ doping on dielectric and piezoelectric properties of the ceramics was studied. The ceramics' relaxor behavior is more distinct after La3+ doping. At room temperature, the-dielectric constant is increased. When the La content is less than 1.5 at.%, the piezoelectric properties are enhanced. Meanwhile the dielectric loss of the ceramics is also increased. When the content of La3+ is higher than 1.5 at.%, the ceramics' piezoelectric properties are considerably degraded.

引用

页码：7387 / 7391

页数：5

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