Phase structure and properties of textured KNN-LTN lead-free piezoelectric ceramics

Feng Gao; Liangliang Liu; Zhenqi Deng; Bo Li; Bei Xu; Changsheng Tian

Phase structure and properties of textured KNN-LTN lead-free piezoelectric ceramics

Feng Gao, Liangliang Liu, Zhenqi Deng, Bo Li, Bei Xu, Changsheng Tian

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

Abstract

The textured K_0.48Na_0.52NbO₃-LiTa_0.5 Nb_0.5O₃(KNN-LTN)lead-free ceramics were fabricated by the reactive templated grain growth(RTGG) technique with the plate-like NaNbO₃ particles as template. The effects of soaking time on the phase structure, the texture fraction and the electrical properties were investigated. The results show that the textured ceramics contain perovskite KNN-LTN and tungsten-bronze-type K₃Li₂Nb₅O₁₅ phases. The texture fraction increased with the increasing soaking time and it reached the maximum value of 0.725 at soaking time of 10 h. The dielectric constant increased and the dielectric loss decreased with the increasing soaking time. Compared with the conventional ceramics, the piezoelectric constant d₃₃ of textured ceramics enhanced and increased with the increasing soaking time.

Original language	English
Pages (from-to)	711-715
Number of pages	5
Journal	Yadian Yu Shengguang/Piezoelectrics and Acoustooptics
Volume	35
Issue number	5
State	Published - Oct 2013

Keywords

KNN-LTN
Lead-free piezoelectric ceramics
Soaking time
Texture

Cite this

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title = "Phase structure and properties of textured KNN-LTN lead-free piezoelectric ceramics",

abstract = "The textured K0.48Na0.52NbO3-LiTa0.5 Nb0.5O3(KNN-LTN)lead-free ceramics were fabricated by the reactive templated grain growth(RTGG) technique with the plate-like NaNbO3 particles as template. The effects of soaking time on the phase structure, the texture fraction and the electrical properties were investigated. The results show that the textured ceramics contain perovskite KNN-LTN and tungsten-bronze-type K3Li2Nb5O15 phases. The texture fraction increased with the increasing soaking time and it reached the maximum value of 0.725 at soaking time of 10 h. The dielectric constant increased and the dielectric loss decreased with the increasing soaking time. Compared with the conventional ceramics, the piezoelectric constant d33 of textured ceramics enhanced and increased with the increasing soaking time.",

keywords = "KNN-LTN, Lead-free piezoelectric ceramics, Soaking time, Texture",

author = "Feng Gao and Liangliang Liu and Zhenqi Deng and Bo Li and Bei Xu and Changsheng Tian",

year = "2013",

month = oct,

language = "英语",

volume = "35",

pages = "711--715",

journal = "Yadian Yu Shengguang/Piezoelectrics and Acoustooptics",

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TY - JOUR

T1 - Phase structure and properties of textured KNN-LTN lead-free piezoelectric ceramics

AU - Gao, Feng

AU - Liu, Liangliang

AU - Deng, Zhenqi

AU - Li, Bo

AU - Xu, Bei

AU - Tian, Changsheng

PY - 2013/10

Y1 - 2013/10

N2 - The textured K0.48Na0.52NbO3-LiTa0.5 Nb0.5O3(KNN-LTN)lead-free ceramics were fabricated by the reactive templated grain growth(RTGG) technique with the plate-like NaNbO3 particles as template. The effects of soaking time on the phase structure, the texture fraction and the electrical properties were investigated. The results show that the textured ceramics contain perovskite KNN-LTN and tungsten-bronze-type K3Li2Nb5O15 phases. The texture fraction increased with the increasing soaking time and it reached the maximum value of 0.725 at soaking time of 10 h. The dielectric constant increased and the dielectric loss decreased with the increasing soaking time. Compared with the conventional ceramics, the piezoelectric constant d33 of textured ceramics enhanced and increased with the increasing soaking time.

AB - The textured K0.48Na0.52NbO3-LiTa0.5 Nb0.5O3(KNN-LTN)lead-free ceramics were fabricated by the reactive templated grain growth(RTGG) technique with the plate-like NaNbO3 particles as template. The effects of soaking time on the phase structure, the texture fraction and the electrical properties were investigated. The results show that the textured ceramics contain perovskite KNN-LTN and tungsten-bronze-type K3Li2Nb5O15 phases. The texture fraction increased with the increasing soaking time and it reached the maximum value of 0.725 at soaking time of 10 h. The dielectric constant increased and the dielectric loss decreased with the increasing soaking time. Compared with the conventional ceramics, the piezoelectric constant d33 of textured ceramics enhanced and increased with the increasing soaking time.

KW - KNN-LTN

KW - Lead-free piezoelectric ceramics

KW - Soaking time

KW - Texture

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M3 - 文章

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JO - Yadian Yu Shengguang/Piezoelectrics and Acoustooptics

JF - Yadian Yu Shengguang/Piezoelectrics and Acoustooptics

IS - 5

ER -

Phase structure and properties of textured KNN-LTN lead-free piezoelectric ceramics

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Keywords

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