ELECTRICAL PROPERTIES OF Nb-DOPED Pb(Zr0.52Ti0.48)O3 CERAMICS

被引：4

作者：

Ketsuwan, Piyachon ^{[1
]}

Laosiritaworn, Yongyut ^{[1
]}

Ananta, Supon ^{[1
]}

Yimnirun, Rattikorn ^{[1
]}

机构：

[1] Chiang Mai Univ, Dept Phys, Fac Sci, Chiang Mai 50200, Thailand

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS B | 2009年 / 23卷 / 01期

关键词：

Ferroelectric properties; dielectric properties; Nb-doped PZT; DIELECTRIC-PROPERTIES; MICROSTRUCTURE;

D O I：

10.1142/S0217979209049711

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The Pb(Zr0.52Ti0.48)O-3 ceramics with 0.75, 1.0, 1.25 and 1.50% wt of Nb2O5 addition were prepared by a conventional mixed oxide technique. It was found that the average grain size of the ceramics decreased from 6 to 1 mu m with increasing doping concentration to 1.5% wt. The room temperature dielectric constant and d(33) reached maximum values of 1050 and 285 pC/N, respectively, at 1% wt Nb-doping. The electrical coercivity (E-c) of Nb-doped PZT decreased, while the polarization values increased, with increasing doping concentration. Most importantly, this study shows that Nb2O5-doped PZT ceramics exhibits soft piezoelectric and enhanced ferroelectric behaviors, and the optimum properties can be obtained using suitable doping concentration.

引用

页码：105 / 111

页数：7

共 15 条

[1] Dielectric properties of solid solutions in the lead zirconate titanate-barium titanate system prepared by a modified mixed-oxide method [J].

Chaisan, W ;

Yimnirun, R ;

Ananta, S ;

Cann, DP .

MATERIALS LETTERS, 2005, 59 (28) :3732-3737

[2] Doping effects of Nb additives on the piezoelectric and dielectric properties of PZT ceramics and its application on SAW device [J].

Chu, SY ;

Chen, TY ;

Tsai, IT ;

Water, W .

SENSORS AND ACTUATORS A-PHYSICAL, 2004, 113 (02) :198-203

[3] Ferroelectric materials for electromechanical transducer applications [J].

Cross, LE .

MATERIALS CHEMISTRY AND PHYSICS, 1996, 43 (02) :108-115

[4]

Durruthy M. D., 1999, J MATER SCI, V34, P2311

[5] Ferroelectric ceramics: History and technology [J].

Haertling, GH .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1999, 82 (04) :797-818

[6] Sintering model for mixed-oxide-derived lead zirconate titanate ceramics [J].

Hammer, M ;

Hoffmann, MJ .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1998, 81 (12) :3277-3284

[7] Variability of impurity doping in the modified Pb(Zr,Ti)O3 ceramics of type ABO3 [J].

Huang, CL ;

Chen, BH ;

Wu, L .

SOLID STATE COMMUNICATIONS, 2004, 130 (1-2) :19-23

[8] EFFECTS OF GRAIN-SIZE AND POROSITY ON ELECTRICAL AND OPTICAL PROPERTIES OF PLZT CERAMICS [J].

OKAZAKI, K ;

NAGATA, K .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1973, 56 (02) :82-86

[9] Effects of dopants on the microstructure and properties of PZT ceramics [J].

Qiu, W ;

Hng, HH .

MATERIALS CHEMISTRY AND PHYSICS, 2002, 75 (1-3) :151-156

[10] Effect of lanthanum substitution on ferroelectric properties of niobium doped PZT ceramics [J].

Singh, Virendra ;

Kumar, H. H. ;

Kharat, D. K. ;

Hait, Samik ;

Kulkarni, M. P. .

MATERIALS LETTERS, 2006, 60 (24) :2964-2968

← 1 2 →