Effects of Sintering Time on Structure and Properties of 0.997(KNN-LS-BF)-0.003V2O5 Lead-Free Piezoelectric Ceramics

Hua Wang; Xia Zhai; Ji Wen Xu; Chang Lai Yuan; Min Hong Jinag

doi:10.4028/www.scientific.net/AMR.602-604.522

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 602-604Effects of Sintering Time on Structure and...

Effects of Sintering Time on Structure and Properties of 0.997(KNN-LS-BF)-0.003V₂O₅ Lead-Free Piezoelectric Ceramics

Abstract:

0.997(KNN-LS-BF)-0.003V₂O₅ piezoelectric ceramics were prepared by the traditional sintering method. The effects of sintering time on structure and properties of 0.997(KNN-LS-BF)-0.003V₂O₅ ceramics were studied. With the increase of sintering time from 2h to 6h, the crystal phase changes from orthorhombic symmetry phase to tetragonal phase, and the properties in the piezoelectric constant d₃₃, planar coupling coefficient k_p, dielectric constant ε_r and dielectric loss tanδ all have been remarkably improved when the sintering time increase to 4h, then the properties of the samples would be deteriorated when the sintering time is over 4h. However, the mechanical quality factor Q_m would be deteriorated all along with the increase of sintering time.

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Periodical:

Advanced Materials Research (Volumes 602-604)

Pages:

522-525

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.602-604.522

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Online since:

December 2012

Authors:

Hua Wang, Xia Zhai, Ji Wen Xu, Chang Lai Yuan, Min Hong Jinag

Keywords:

0.997(KNN-LS-BF)-0.003V₂O₅, Lead-Free Piezoelectric Ceramics, Property, Sintering Time

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