Structural and electrical properties of Nd doped K 0.53Na 0.47NbO 3 based lead-free piezoceramics

Shao Jun Liu; Peng Fei Wang; Bing Bing Wan; Qing Ma

Structural and electrical properties of Nd doped K _0.53Na _0.47NbO ₃ based lead-free piezoceramics

Shao Jun Liu^*
, Peng Fei Wang
, Bing Bing Wan
, Qing Ma

^*Corresponding author for this work

Central South University
Harbin Institute of Technology Shenzhen

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

6 Scopus citations

Abstract

The Nd doped 0.942(Na _0.53K _0.47) NbO ₃-0.058LiNbO ₃ (KNNLN) lead-free piezoceramics were prepared by the solid reaction method. The structure, phase transition and electrical properties were studied by XRD, infrared spectra and Raman spectra. The results show that the single phase perovskite is dominant in these samples. The continuous change of the bond of NbO ₆ is closely related to B-site Nd substitution in KNNLN. The successive phase transitions from tetragonal to orthorhombic, and then to cubic are observed in Nd doped KNNLN ceramics. The piezoelectric constant (d ₃₃) and dielectric constant (ε _r) are significantly improved by Nd doping due to the appearance of phase coexistence zone. The highest d ₃₃ of 128 pC/N appears in 2% Nd doped ceramics and its dielectric constant ε _r is 694. In contrast, the values of d ₃₃ and ε _r of undoped KNNLN are 87 pC/N and 545, respectively.

Original language	English
Pages (from-to)	2010-2015
Number of pages	6
Journal	Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals
Volume	22
Issue number	7
State	Published - Jul 2012
Externally published	Yes

Keywords

K Na NbO
Lead-free piezoceramics
Nd
Piezoelectric property

Cite this

@article{b406f253ef70445d9a7b489c2b973a21,

title = "Structural and electrical properties of Nd doped K 0.53Na 0.47NbO 3 based lead-free piezoceramics",

abstract = "The Nd doped 0.942(Na 0.53K 0.47) NbO 3-0.058LiNbO 3 (KNNLN) lead-free piezoceramics were prepared by the solid reaction method. The structure, phase transition and electrical properties were studied by XRD, infrared spectra and Raman spectra. The results show that the single phase perovskite is dominant in these samples. The continuous change of the bond of NbO 6 is closely related to B-site Nd substitution in KNNLN. The successive phase transitions from tetragonal to orthorhombic, and then to cubic are observed in Nd doped KNNLN ceramics. The piezoelectric constant (d 33) and dielectric constant (ε r) are significantly improved by Nd doping due to the appearance of phase coexistence zone. The highest d 33 of 128 pC/N appears in 2\% Nd doped ceramics and its dielectric constant ε r is 694. In contrast, the values of d 33 and ε r of undoped KNNLN are 87 pC/N and 545, respectively.",

keywords = "K Na NbO, Lead-free piezoceramics, Nd, Piezoelectric property",

author = "Liu, \{Shao Jun\} and Wang, \{Peng Fei\} and Wan, \{Bing Bing\} and Qing Ma",

year = "2012",

month = jul,

language = "英语",

volume = "22",

pages = "2010--2015",

journal = "Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals",

issn = "1004-0609",

publisher = "Central South University",

number = "7",

}

TY - JOUR

T1 - Structural and electrical properties of Nd doped K 0.53Na 0.47NbO 3 based lead-free piezoceramics

AU - Liu, Shao Jun

AU - Wang, Peng Fei

AU - Wan, Bing Bing

AU - Ma, Qing

PY - 2012/7

Y1 - 2012/7

N2 - The Nd doped 0.942(Na 0.53K 0.47) NbO 3-0.058LiNbO 3 (KNNLN) lead-free piezoceramics were prepared by the solid reaction method. The structure, phase transition and electrical properties were studied by XRD, infrared spectra and Raman spectra. The results show that the single phase perovskite is dominant in these samples. The continuous change of the bond of NbO 6 is closely related to B-site Nd substitution in KNNLN. The successive phase transitions from tetragonal to orthorhombic, and then to cubic are observed in Nd doped KNNLN ceramics. The piezoelectric constant (d 33) and dielectric constant (ε r) are significantly improved by Nd doping due to the appearance of phase coexistence zone. The highest d 33 of 128 pC/N appears in 2% Nd doped ceramics and its dielectric constant ε r is 694. In contrast, the values of d 33 and ε r of undoped KNNLN are 87 pC/N and 545, respectively.

AB - The Nd doped 0.942(Na 0.53K 0.47) NbO 3-0.058LiNbO 3 (KNNLN) lead-free piezoceramics were prepared by the solid reaction method. The structure, phase transition and electrical properties were studied by XRD, infrared spectra and Raman spectra. The results show that the single phase perovskite is dominant in these samples. The continuous change of the bond of NbO 6 is closely related to B-site Nd substitution in KNNLN. The successive phase transitions from tetragonal to orthorhombic, and then to cubic are observed in Nd doped KNNLN ceramics. The piezoelectric constant (d 33) and dielectric constant (ε r) are significantly improved by Nd doping due to the appearance of phase coexistence zone. The highest d 33 of 128 pC/N appears in 2% Nd doped ceramics and its dielectric constant ε r is 694. In contrast, the values of d 33 and ε r of undoped KNNLN are 87 pC/N and 545, respectively.

KW - K Na NbO

KW - Lead-free piezoceramics

KW - Nd

KW - Piezoelectric property

UR - https://www.scopus.com/pages/publications/84867313522

M3 - 文章

AN - SCOPUS:84867313522

SN - 1004-0609

VL - 22

SP - 2010

EP - 2015

JO - Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals

JF - Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals

IS - 7

ER -

Structural and electrical properties of Nd doped K _0.53Na _0.47NbO ₃ based lead-free piezoceramics

Abstract

Keywords

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