Effect of lead content on the structure and piezoelectric properties of hard type lead titanate-zirconate ceramics

被引：0

作者：

National Institute for Materials Physics, Bucharest-Magurele, Romania ^{[1
]}

不详 ^{[2
]}

机构：

[1] National Institute for Materials Physics, Bucharest-Magurele

[2] Hyperion University, Sector 3, Bucharest

来源：

J. Eur. Ceram. Soc. | 2007年 / 13-15卷 / 4055-4059期

关键词：

Dielectric properties; PbO loss; Piezoelectric properties; PZT; Sintering;

D O I：

10.1016/j.jeurceramsoc.2007.02.094

中图分类号：

学科分类号：

摘要：

In the present investigation we studied the effect of lead content on a hard type ceramics starting from lack to excess PbO. Specimens of Pbx(Mn0.017Sb0.033Zr0.48 Ti0.47)O3 with 0.96 ≤ x ≤ 1.06 were prepared by conventional oxide mixing technique and sintered at temperatures between 1280 and 1350 °C. In samples with lower Pb concentration the pyrochlore phase appeared, while in those with higher Pb an excess of PbO phase was detected. These phases proved detrimental for the properties of sintered ceramics. The highest values of piezoelectric properties were observed only for samples with an excess lead of about 2% sintered at 1340 °C, indicating that it represents the optimum amount of PbO. For such samples, the density ρ was 7.77 g/cm3, the remnant polarization Pr was 37 μC/cm3 the planar coupling coefficient kp was 0.57 and the charge constant d33 was 340 pC/N. © 2007 Elsevier Ltd. All rights reserved.

引用

页码：4055 / 4059

页数：4

共 23 条

[1]

Piezoelectric Materials in Devices, (2002)

[2]

Holman R., Fulrath R., Intrinsic nonstoichiometry in single phase PZT ceramics, J. Am. Ceram. Soc., 55, pp. 105-192, (1981)

[3]

Kakegawa K., Mohri J., Compositional fluctuation and properties of PZT, Solid State Commun., 24, pp. 769-772, (1989)

[4]

Saha S., Agrawal D., Compositional fluctuations and their influence on the properties of PZT ceramics, Am. Ceram. Bull., 71, pp. 1424-1428, (1992)

[5]

Fernandez J., Moure C., Villegas M., Duran P., Kosec M., Drazic G., Compositional fluctuations and properties of fine-grained acceptor doped PZT ceramics, J. Eur. Ceram. Soc., 18, pp. 1695-1705, (1998)

[6]

Takahashi S., Effect of impurity doping in PZT ceramics, Ferroelectrics, 41, pp. 143-156, (1982)

[7]

Jafe B., Cook W., Jafe H., Piezoelectric ceramics, (1971)

[8]

Fan H., Kim H., Effect of lead content on the structure and electrical properties of PZN-PZT ceramics, J. Am. Ceram. Soc., 84, pp. 636-638, (2001)

[9]

Miclea C., Tanasoiu C., Miclea C.F., Effect of small amounts of PbO on the piezoelectric properties of soft type PZT ceramics, J. Optoelectron. Adv. Mater., 1, pp. 59-65, (1999)

[10]

Bongkaru T., Rujijanagul G., Milne S., Effect of excess PbO, on phase formation and properties of PBZ ceramics, Mater. Lett., 59, pp. 1200-1205, (2005)

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