Studying the effect of Bi2O3 addition before and after calcination on electrical properties of (Ba0. 85Ca0. 15)(Zr0. 1Ti0. 9)O3 piezoceramics

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HAYATI RAZIYEH; BAHREVAR MOHAMMAD ALI

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Journal: Journal of Advanced Processes in Materials Engineering Year:2019 | Volume:13 | Issue:1 (48) Page(s): 13-23

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Title

Studying the effect of Bi2O3 addition before and after calcination on electrical properties of (Ba0. 85Ca0. 15)(Zr0. 1Ti0. 9)O3 piezoceramics

Author(s)

HAYATI RAZIYEH | BAHREVAR MOHAMMAD ALI | Issue Writer Certificate

Keywords

Lead-Free PiezoelectricQ1

BCZTQ1

Bi2O3Q1

SinterQ2

Electrical PropertiesQ2

Abstract

Lead-free Ba0. 85Ca0. 15Zr0. 1Ti0. 9O3 (BCZT) compounds were synthesized using the conventional solid state ceramic processing and the effects of Bi2O3 addition on density and Electrical Properties was investigated. In order to decrease the loss of Bi at high processing temperatures of BCZT, two methods were employed to introduce bismuth oxide; one, in which Bi2O3 was mixed with the raw materials and the composition was balanced for A-site substitution before calcination and the other where Bi2O3 (0. 1mol%) was added after calcination, milled, compacted, and Sintered (1350-1500 ° C) with no compensation at A or B-sites. Phase and microstructure analyses were carried out using x-ray diffractometry and scanning electron microscopy. The temperature and frequency dependence of dielectric properties showed a normal ferroelectric behavior. Our results revealed that Bi incorporation based on the second method was more effective in increasing the density and improving the Electrical Properties. The highest direct and converse piezoelectric constants, planar coupling factor, and remnant polarization obtained were d33=325 pC/m, d33*=675 pm/V (d33*/d33=2. 1), kp=0. 42, and Pr=10. 4 μ C/cm2, respectively, for the BCZT sample with 0. 1 mol% Bi2O3, as Sintering aid, Sintered at 1350 ° C.

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APA: Copy

HAYATI, RAZIYEH, & BAHREVAR, MOHAMMAD ALI. (2019). Studying the effect of Bi2O3 addition before and after calcination on electrical properties of (Ba0. 85Ca0. 15)(Zr0. 1Ti0. 9)O3 piezoceramics. ADVANCED PROCESSES IN MATERIALS, 13(1 (48) ), 13-23. SID. https://sid.ir/paper/172668/en

Vancouver: Copy

HAYATI RAZIYEH, BAHREVAR MOHAMMAD ALI. Studying the effect of Bi2O3 addition before and after calcination on electrical properties of (Ba0. 85Ca0. 15)(Zr0. 1Ti0. 9)O3 piezoceramics. ADVANCED PROCESSES IN MATERIALS[Internet]. 2019;13(1 (48) ):13-23. Available from: https://sid.ir/paper/172668/en

IEEE: Copy

RAZIYEH HAYATI, and MOHAMMAD ALI BAHREVAR, “Studying the effect of Bi2O3 addition before and after calcination on electrical properties of (Ba0. 85Ca0. 15)(Zr0. 1Ti0. 9)O3 piezoceramics,” ADVANCED PROCESSES IN MATERIALS, vol. 13, no. 1 (48) , pp. 13–23, 2019, [Online]. Available: https://sid.ir/paper/172668/en

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