Low-temperature sintering of CuO-doped 0.94(K0.48Na 0.535)NbO3-0.06LiNbO3 lead-free piezoelectric ceramics

Rongxia Huang; Yuzhen Zhao; Xiaowen Zhang; Yongjie Zhao; Rongzheng Liu; Heping Zhou

doi:10.1111/j.1551-2916.2010.04227.x

Low-temperature sintering of CuO-doped 0.94(K_0.48Na _0.535)NbO₃-0.06LiNbO₃ lead-free piezoelectric ceramics

Rongxia Huang^*, Yuzhen Zhao, Xiaowen Zhang, Yongjie Zhao, Rongzheng Liu, Heping Zhou

^*Corresponding author for this work

Tsinghua University

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

41 Citations (Scopus)

Abstract

Lead-free 0.94(K_0.48Na_0.535)NbO₃-0. 06LiNbO₃-xmol%CuO ceramics were synthesized by conventional ceramics processes. The doping of CuO can decrease the sintering temperature to 890°C and effectively promote the densification of 0.94(K_0.48Na _0.535)NbO₃-0.06LiNbO₃ ceramics. X-ray diffraction result reveals that doping of CuO induces lattice distortion. Homogeneous grain growth is observed, due to the presence of liquid phase that resulted from the addition of CuO. The ceramics sintered at 890°C show fairly good properties with the planar electromechanical coupling factor k _p=34.8%, piezoelectric constant d₃₃=157.5 pC/N, dielectric constant ε₃₃^T/ε₀=391, and mechanical quality factor Q_m=173.5.

Original language	English
Pages (from-to)	4018-4021
Number of pages	4
Journal	Journal of the American Ceramic Society
Volume	93
Issue number	12
DOIs	https://doi.org/10.1111/j.1551-2916.2010.04227.x
Publication status	Published - Dec 2010
Externally published	Yes

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title = "Low-temperature sintering of CuO-doped 0.94(K0.48Na 0.535)NbO3-0.06LiNbO3 lead-free piezoelectric ceramics",

abstract = "Lead-free 0.94(K0.48Na0.535)NbO3-0. 06LiNbO3-xmol%CuO ceramics were synthesized by conventional ceramics processes. The doping of CuO can decrease the sintering temperature to 890°C and effectively promote the densification of 0.94(K0.48Na 0.535)NbO3-0.06LiNbO3 ceramics. X-ray diffraction result reveals that doping of CuO induces lattice distortion. Homogeneous grain growth is observed, due to the presence of liquid phase that resulted from the addition of CuO. The ceramics sintered at 890°C show fairly good properties with the planar electromechanical coupling factor k p=34.8%, piezoelectric constant d33=157.5 pC/N, dielectric constant ε33T/ε0=391, and mechanical quality factor Qm=173.5.",

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

year = "2010",

month = dec,

doi = "10.1111/j.1551-2916.2010.04227.x",

language = "English",

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pages = "4018--4021",

journal = "Journal of the American Ceramic Society",

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T1 - Low-temperature sintering of CuO-doped 0.94(K0.48Na 0.535)NbO3-0.06LiNbO3 lead-free piezoelectric ceramics

AU - Huang, Rongxia

AU - Zhao, Yuzhen

AU - Zhang, Xiaowen

AU - Zhao, Yongjie

AU - Liu, Rongzheng

AU - Zhou, Heping

PY - 2010/12

Y1 - 2010/12

N2 - Lead-free 0.94(K0.48Na0.535)NbO3-0. 06LiNbO3-xmol%CuO ceramics were synthesized by conventional ceramics processes. The doping of CuO can decrease the sintering temperature to 890°C and effectively promote the densification of 0.94(K0.48Na 0.535)NbO3-0.06LiNbO3 ceramics. X-ray diffraction result reveals that doping of CuO induces lattice distortion. Homogeneous grain growth is observed, due to the presence of liquid phase that resulted from the addition of CuO. The ceramics sintered at 890°C show fairly good properties with the planar electromechanical coupling factor k p=34.8%, piezoelectric constant d33=157.5 pC/N, dielectric constant ε33T/ε0=391, and mechanical quality factor Qm=173.5.

AB - Lead-free 0.94(K0.48Na0.535)NbO3-0. 06LiNbO3-xmol%CuO ceramics were synthesized by conventional ceramics processes. The doping of CuO can decrease the sintering temperature to 890°C and effectively promote the densification of 0.94(K0.48Na 0.535)NbO3-0.06LiNbO3 ceramics. X-ray diffraction result reveals that doping of CuO induces lattice distortion. Homogeneous grain growth is observed, due to the presence of liquid phase that resulted from the addition of CuO. The ceramics sintered at 890°C show fairly good properties with the planar electromechanical coupling factor k p=34.8%, piezoelectric constant d33=157.5 pC/N, dielectric constant ε33T/ε0=391, and mechanical quality factor Qm=173.5.

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Low-temperature sintering of CuO-doped 0.94(K_0.48Na _0.535)NbO₃-0.06LiNbO₃ lead-free piezoelectric ceramics

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