Preparation Process of KNN-0.008BF Lead-Free Piezoelectric Ceramics

Guo Yuan Cheng; Xing Hua Fu; Xin Jin; Wen Hong Tao; Yu Qin Qiang

doi:10.4028/www.scientific.net/AMM.740.7

Paper Titles

Preface, Committees and Sponsors

KNN-BF Lead-Free Piezoelectric Ceramics Synthesized by Sol-Gel Method
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Preparation Process of KNN-0.008BF Lead-Free Piezoelectric Ceramics
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Research on Expanded Graphite/Nitrate High-Temperature Composite Phase Change Materials
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Study on Properties of EPS Insulation Mortar
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The Performance of Cement-Based Self-Leveling Mortars Affected by Mineral Admixtures
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Morphology Evolution and Mechanical Properties of HNBR Composites Reinforced by HZMMA/Carbon Black during Curing Process
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Dielectric Properties of Mn, Co, and Ni-Doped LaSrFeO₃ Films with Different Annealing Atmosphere
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 740Preparation Process of KNN-0.008BF Lead-Free...

Preparation Process of KNN-0.008BF Lead-Free Piezoelectric Ceramics

Abstract:

In this paper, the sol-gel method was used to systematic study of the preparation conditions and sintering conditions about KNN-0.008BF powders. At the same time, microstructure and electrical properties of ceramics were studied and analyzed. In this experiment, citric acid(CA) as metal chelator, ethylene glycol(EG) as esterification and chelating agents. Through a large number of experiments, n(citric acid):n(ethylene glycol)=2:1, n(citric acid):n(Nb⁵⁺)=1.5:1 is the best equipped ratio. This ratio can obtained pale yellow transparent solution. Under the experiments condition, PH of the precursor solution and the sintering temperature of powders have great influence on experimental. Experiments confirmed that PH=5-6 and temperature=1100°C is the best preparation condition, in which condition piezoelectric ceramics can obtained excellent structures and piezoelectric properties.

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Periodical:

Applied Mechanics and Materials (Volume 740)

Pages:

7-10

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.740.7

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Online since:

March 2015

Authors:

Guo Yuan Cheng, Xing Hua Fu*, Xin Jin, Wen Hong Tao, Yu Qin Qiang

Keywords:

Piezoelectric Properties, Sintering Temperature, Sol-Gel, Structure

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