Phase structure of Li 0.058(Na 0.51K 0.49) 0.942NbO 3 lead-free piezoelectric ceramics

Yongjie Zhao; Rongxia Huang; Rongzheng Liu; Heping Zhou

doi:10.1016/j.matlet.2012.06.030

Phase structure of Li _0.058(Na _0.51K _0.49) _0.942NbO ₃ lead-free piezoelectric ceramics

Yongjie Zhao^*, Rongxia Huang, Rongzheng Liu, Heping Zhou

^*Corresponding author for this work

Tsinghua University

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

13 Citations (Scopus)

Abstract

Several kinds of phase structure change behavior in Li _0.058(Na _0.51K _0.49) _0.942NbO ₃ (KNNLN) ceramics were presented in this work. XPS measurement was employed to determine Na volatilization in the KNNLN samples, and this result explains the difference of the phase structure between the surface and interior of the samples. The phase structure of lead-free KNNLN piezoceramics are studied based on the measurements of the analysis of X-ray diffraction pattern and dielectric properties. The poled samples exhibit orthorhombic structure whereas the surface and interior for unpoled samples exhibit tetragonal and tetragonal-orthorhombic coexistent structures, respectively. An explanation to the mechanism of the structure transformation during poling processing was proposed.

Original language	English
Pages (from-to)	52-55
Number of pages	4
Journal	Materials Letters
Volume	84
DOIs	https://doi.org/10.1016/j.matlet.2012.06.030
Publication status	Published - 1 Oct 2012
Externally published	Yes

Keywords

Ceramics
Ferroelectrics
Phase structure
XPS

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10.1016/j.matlet.2012.06.030

Cite this

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title = "Phase structure of Li 0.058(Na 0.51K 0.49) 0.942NbO 3 lead-free piezoelectric ceramics",

abstract = "Several kinds of phase structure change behavior in Li 0.058(Na 0.51K 0.49) 0.942NbO 3 (KNNLN) ceramics were presented in this work. XPS measurement was employed to determine Na volatilization in the KNNLN samples, and this result explains the difference of the phase structure between the surface and interior of the samples. The phase structure of lead-free KNNLN piezoceramics are studied based on the measurements of the analysis of X-ray diffraction pattern and dielectric properties. The poled samples exhibit orthorhombic structure whereas the surface and interior for unpoled samples exhibit tetragonal and tetragonal-orthorhombic coexistent structures, respectively. An explanation to the mechanism of the structure transformation during poling processing was proposed.",

keywords = "Ceramics, Ferroelectrics, Phase structure, XPS",

author = "Yongjie Zhao and Rongxia Huang and Rongzheng Liu and Heping Zhou",

year = "2012",

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TY - JOUR

T1 - Phase structure of Li 0.058(Na 0.51K 0.49) 0.942NbO 3 lead-free piezoelectric ceramics

AU - Zhao, Yongjie

AU - Huang, Rongxia

AU - Liu, Rongzheng

AU - Zhou, Heping

PY - 2012/10/1

Y1 - 2012/10/1

N2 - Several kinds of phase structure change behavior in Li 0.058(Na 0.51K 0.49) 0.942NbO 3 (KNNLN) ceramics were presented in this work. XPS measurement was employed to determine Na volatilization in the KNNLN samples, and this result explains the difference of the phase structure between the surface and interior of the samples. The phase structure of lead-free KNNLN piezoceramics are studied based on the measurements of the analysis of X-ray diffraction pattern and dielectric properties. The poled samples exhibit orthorhombic structure whereas the surface and interior for unpoled samples exhibit tetragonal and tetragonal-orthorhombic coexistent structures, respectively. An explanation to the mechanism of the structure transformation during poling processing was proposed.

AB - Several kinds of phase structure change behavior in Li 0.058(Na 0.51K 0.49) 0.942NbO 3 (KNNLN) ceramics were presented in this work. XPS measurement was employed to determine Na volatilization in the KNNLN samples, and this result explains the difference of the phase structure between the surface and interior of the samples. The phase structure of lead-free KNNLN piezoceramics are studied based on the measurements of the analysis of X-ray diffraction pattern and dielectric properties. The poled samples exhibit orthorhombic structure whereas the surface and interior for unpoled samples exhibit tetragonal and tetragonal-orthorhombic coexistent structures, respectively. An explanation to the mechanism of the structure transformation during poling processing was proposed.

KW - Ceramics

KW - Ferroelectrics

KW - Phase structure

KW - XPS

UR - http://www.scopus.com/inward/record.url?scp=84864467108&partnerID=8YFLogxK

U2 - 10.1016/j.matlet.2012.06.030

DO - 10.1016/j.matlet.2012.06.030

M3 - Article

AN - SCOPUS:84864467108

SN - 0167-577X

VL - 84

SP - 52

EP - 55

JO - Materials Letters

JF - Materials Letters

ER -

Phase structure of Li _0.058(Na _0.51K _0.49) _0.942NbO ₃ lead-free piezoelectric ceramics

Abstract

Keywords

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