Sintering characteristic and piezoelectric properties of lead-free (K0.5Na0.5)NbO3-LiNbO3 ceramics

Fu Sheng Tang; Hong Liang Du; Dai Jun Liu; Fa Luo; Wan Cheng Zhou

Sintering characteristic and piezoelectric properties of lead-free (K_0.5Na_0.5)NbO₃-LiNbO₃ ceramics

Fu Sheng Tang
, Hong Liang Du
, Dai Jun Liu
, Fa Luo
, Wan Cheng Zhou

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

18 Scopus citations

Abstract

Lead-free (1-x)(1-x) (K_0.5Na_0.5) NbO₃-xLiNbO₃ piezoelectric ceramics were prepared by a traditional ceramic processing. The sintering characteristic, the microstructure and electrical properties of (1-x) (K_0.5Na_0.5) NbO₃-LiNbO₃ ceramics were investigated. Results show that all specimens exhibit a pure perovskite structure and the phase structure at room temperature transforms from orthorhombic to tetragonal with the increase of LiNbO3.The microstructure of (1-x) (K_0.5Na_0.5) NbO₃-LiNbO₃ ceramics exhibits apparent difference due to different amounts of LiNbO₃. The sinterability of (1-x) (K_0.5Na_0.5) NbO₃-LiNbO₃ is improved and the sintering temperature is lower than that of pure KNN ceramics. The (1-x) (K_0.5Na_0.5) NbO₃-LiNbO₃ (x=0.06) ceramics exhibits an excellent piezoelectric properties with the piezoelectric constant d₃₃, the electromechanical coupling coefficients k_p and k_t of 205pC/N, 40.3% and 49.8%, respectively.

Original language	English
Pages (from-to)	323-327
Number of pages	5
Journal	Wuji Cailiao Xuebao/Journal of Inorganic Materials
Volume	22
Issue number	2
State	Published - Mar 2007

Keywords

(KNa) NbO-LiNbO
Lead-free piezoelectric ceramics
Perovskite structure
Piezoelectric properties

Cite this

@article{6b87d57d06314851b6467800a7bcc9e2,

title = "Sintering characteristic and piezoelectric properties of lead-free (K0.5Na0.5)NbO3-LiNbO3 ceramics",

abstract = "Lead-free (1-x)(1-x) (K0.5Na0.5) NbO3-xLiNbO3 piezoelectric ceramics were prepared by a traditional ceramic processing. The sintering characteristic, the microstructure and electrical properties of (1-x) (K0.5Na0.5) NbO3-LiNbO3 ceramics were investigated. Results show that all specimens exhibit a pure perovskite structure and the phase structure at room temperature transforms from orthorhombic to tetragonal with the increase of LiNbO3.The microstructure of (1-x) (K0.5Na0.5) NbO3-LiNbO3 ceramics exhibits apparent difference due to different amounts of LiNbO3. The sinterability of (1-x) (K0.5Na0.5) NbO3-LiNbO3 is improved and the sintering temperature is lower than that of pure KNN ceramics. The (1-x) (K0.5Na0.5) NbO3-LiNbO3 (x=0.06) ceramics exhibits an excellent piezoelectric properties with the piezoelectric constant d33, the electromechanical coupling coefficients kp and kt of 205pC/N, 40.3\% and 49.8\%, respectively.",

keywords = "(KNa) NbO-LiNbO, Lead-free piezoelectric ceramics, Perovskite structure, Piezoelectric properties",

author = "Tang, \{Fu Sheng\} and Du, \{Hong Liang\} and Liu, \{Dai Jun\} and Fa Luo and Zhou, \{Wan Cheng\}",

year = "2007",

month = mar,

language = "英语",

volume = "22",

pages = "323--327",

journal = "Wuji Cailiao Xuebao/Journal of Inorganic Materials",

issn = "1000-324X",

publisher = "Science Press ",

number = "2",

}

TY - JOUR

T1 - Sintering characteristic and piezoelectric properties of lead-free (K0.5Na0.5)NbO3-LiNbO3 ceramics

AU - Tang, Fu Sheng

AU - Du, Hong Liang

AU - Liu, Dai Jun

AU - Luo, Fa

AU - Zhou, Wan Cheng

PY - 2007/3

Y1 - 2007/3

N2 - Lead-free (1-x)(1-x) (K0.5Na0.5) NbO3-xLiNbO3 piezoelectric ceramics were prepared by a traditional ceramic processing. The sintering characteristic, the microstructure and electrical properties of (1-x) (K0.5Na0.5) NbO3-LiNbO3 ceramics were investigated. Results show that all specimens exhibit a pure perovskite structure and the phase structure at room temperature transforms from orthorhombic to tetragonal with the increase of LiNbO3.The microstructure of (1-x) (K0.5Na0.5) NbO3-LiNbO3 ceramics exhibits apparent difference due to different amounts of LiNbO3. The sinterability of (1-x) (K0.5Na0.5) NbO3-LiNbO3 is improved and the sintering temperature is lower than that of pure KNN ceramics. The (1-x) (K0.5Na0.5) NbO3-LiNbO3 (x=0.06) ceramics exhibits an excellent piezoelectric properties with the piezoelectric constant d33, the electromechanical coupling coefficients kp and kt of 205pC/N, 40.3% and 49.8%, respectively.

AB - Lead-free (1-x)(1-x) (K0.5Na0.5) NbO3-xLiNbO3 piezoelectric ceramics were prepared by a traditional ceramic processing. The sintering characteristic, the microstructure and electrical properties of (1-x) (K0.5Na0.5) NbO3-LiNbO3 ceramics were investigated. Results show that all specimens exhibit a pure perovskite structure and the phase structure at room temperature transforms from orthorhombic to tetragonal with the increase of LiNbO3.The microstructure of (1-x) (K0.5Na0.5) NbO3-LiNbO3 ceramics exhibits apparent difference due to different amounts of LiNbO3. The sinterability of (1-x) (K0.5Na0.5) NbO3-LiNbO3 is improved and the sintering temperature is lower than that of pure KNN ceramics. The (1-x) (K0.5Na0.5) NbO3-LiNbO3 (x=0.06) ceramics exhibits an excellent piezoelectric properties with the piezoelectric constant d33, the electromechanical coupling coefficients kp and kt of 205pC/N, 40.3% and 49.8%, respectively.

KW - (KNa) NbO-LiNbO

KW - Lead-free piezoelectric ceramics

KW - Perovskite structure

KW - Piezoelectric properties

UR - https://www.scopus.com/pages/publications/34248173284

M3 - 文章

AN - SCOPUS:34248173284

SN - 1000-324X

VL - 22

SP - 323

EP - 327

JO - Wuji Cailiao Xuebao/Journal of Inorganic Materials

JF - Wuji Cailiao Xuebao/Journal of Inorganic Materials

IS - 2

ER -

Sintering characteristic and piezoelectric properties of lead-free (K_0.5Na_0.5)NbO₃-LiNbO₃ ceramics

Abstract

Keywords

Other files and links

Fingerprint

Cite this