ELECTRICAL AND ELECTROMECHANICAL PROPERTIES OF HOT-PRESSED PB(FE1/2NB1/2)O3 FERROELECTRIC CERAMICS

被引：62

作者：

YOKOSUKA, M

机构：

[1] Iwaki-Meisei University, Fukushima, Iwaki

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1993年 / 32卷 / 3A期

关键词：

PB(FE1/2NB1/2)O3; HOT-PRESSED CERAMICS; PIEZOELECTRIC CONSTANTS; ELECTROMECHANICAL PROPERTIES;

D O I：

10.1143/JJAP.32.1142

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Dense ceramics of Pb(Fel/2Nb1/2)O3 with high resistivity were fabricated below 1000-degrees-C by making use of the hot-pressing technique. For these hot-pressed specimens, measurements of the spontaneous polarization, dielectric constants, electromechanical coupling factors, piezoelectric constants and elastic compliance constants were carried out as a function of temperatures between -30-degrees-C and 200-degrees-C. Temperature variations of the resistivity and linear thermal expansion were also studied. At room temperature, the following values were obtained epsilon33T/epsilon0 = 2640, P(s) = 11.3 muC/cm2, k33 = 0.266, d33 = 145 X 10(-12) C/N and s33E = 12.3 x 1O(-12) m2/N. These values were briefly compared with those of BaTiO3 ceramics.

引用

页码：1142 / 1146

页数：5

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