Structure and properties of (Cu Ca Bi) doped KNN lead-free piezoceramics

被引：0

作者：

Miclea, C. ^{[1
]}

Tanasoiu, C. ^{[1
]}

Miclea, C. F. ^{[1
]}

Trupina, L. ^{[1
]}

Cioangher, M. ^{[1
]}

Miclea, C. T. ^{[2
]}

Malczanek, V. ^{[3
]}

Susu, M. ^{[2
]}

Voicu, I. ^{[2
]}

Ivanov, A. ^{[1
]}

机构：

[1] Natl Inst Mat Phys, Bucharest, Romania

[2] Hyperion Univ, Bucharest, Romania

[3] Fairleigh Dickinson Univ, Teaneck, NJ 07666 USA

来源：

OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS | 2009年 / 3卷 / 09期

关键词：

Doped niobates; Lead free piezoceramics; Structure; Piezoelectric properties; ELECTRICAL-PROPERTIES; PHASE-TRANSITION; CERAMICS; BEHAVIOR;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Lead free ceramics in the system (1-x)KNN x(Bi2O3,CaO,CuO) with 0.0 <= x <= 0.1 were synthesized by the usual solid state reaction and their structural and piezoelectric properties were investigated Dense samples with densities of about 4 68 g/cm(3) were prepared by sintering at an optimum temperature of 1150 degrees C for 6 h Only perovskite phase was detected by X-ray investigation in all samples A typical MPB where orthorombic-tetragonal phases coexist was detected for a doping level of 0.06 where the piezoelectric parameters showed maximum values Planar coupling factor, as much as 0.46, piezoelectric charge constant of 270 pC/N and mechanical quality factor Q(m) of 75 were recorded for the samples situated within the MPB.

引用

页码：942 / 946

页数：5

共 23 条

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