Effect of Fe and Mn doping at B-site of PLZT ceramics on dielectric properties

被引：20

作者：

Rai, Radheshyam ^{[1
]}

Mishra, Sikha ^{[2
]}

Singh, N. K. ^{[2
]}

机构：

[1] Indian Inst Technol Delhi, Dept Phys, New Delhi 110016, India

[2] VKS Univ, Dept Phys, Ara 802301, India

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 487卷 / 1-2期

关键词：

Powders; Solid-state reaction; Grain size; Dielectric properties; Electrical conductivity; PIEZOELECTRIC PROPERTIES; FERROELECTRIC CERAMICS; PHASE-TRANSITION; PZT CERAMICS; CAPACITORS; DEPENDENCE;

D O I：

10.1016/j.jallcom.2009.07.161

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Iron (Fe) and manganese (Mn) doped lead lanthanum zirconate titanate (PLZT) ceramic powders have been synthesized by high temperature solid-state reaction method. Preliminary X-ray structural analysis of the compounds shows the formation of tetragonal structure. Detailed dielectric studies of the compounds as a function of temperature (from 300K to 600 K) at frequency 10 kHz suggest that the compounds undergo a diffuse phase transition. The transition temperature shifts towards higher side with decreasing the Zr ratio. The activation energy (Ea) of the samples was calculated from the plot of AC conductivity vs inverse of absolute temperature. Diffusivity (gamma) study of phase transition of these compounds provided its value between 1 and 2, indicating the variation of degree of disordering in the system. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：494 / 498

页数：5

共 37 条

[1]

[Anonymous], POWD INTERACTIVE POW

[2] Temperature dependence of dielectric and piezoelectric properties of PLZT-PZN ceramic tapes [J].

Chen, Yun-Tien ;

Lin, Shih-Chin ;

Cheng, Syh-Yuh .

JOURNAL OF ALLOYS AND COMPOUNDS, 2008, 449 (1-2) :101-104

[3]

CROSS LE, 1987, FERROELECTRICS, V76, P241, DOI 10.2109/jcersj.99.829

[4] Stress and frequency dependence of the direct piezoelectric effect in ferroelectric ceramics [J].

Damjanovic, D .

JOURNAL OF APPLIED PHYSICS, 1997, 82 (04) :1788-1797

[5] Impedance spectroscopy studies on Fe3+ ion modified PLZT ceramics [J].

Dutta, Soma ;

Choudhary, R. N. P. ;

Sinha, P. K. .

CERAMICS INTERNATIONAL, 2007, 33 (01) :13-20

[6] Effects Of WO3 on the microstructure and optical transmittance of PLZT ferroelectric ceramics [J].

Favaretto, Robson ;

Garcia, Ducinei ;

Eiras, Jose Antonio .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2007, 27 (13-15) :4037-4040

[7]

Gurevich V. M., 1969, ELECT CONDUCTIVITY F

[8]

HAERTLING GH, 1971, J AM CERAM SOC, V54, P1, DOI [10.1111/j.1151-2916.1971.tb12296.x, 10.1111/j.1151-2916.1970.tb12105.x-i1]

[9] ELECTRICAL AND MECHANICAL-PROPERTIES OF PB(ZR,TI)O3 CERAMICS RELATED TO MN ION DIFFUSION [J].

HASE, K ;

SAITOH, M ;

KITTAKA, T ;

TOMONO, K .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1993, 32 (9B) :4227-4229

[10]

HEARTLING GH, 1987, FERROELECTRICS, V75, P25

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