Microstructure and piezoelectric properties of (Na,K)0.5Bi0.5 TiO3 lead-free ceramics

Feng Gao; Chang Song Zhang; Wei Min Wang; Ming Zhao; Chang Sheng Tian

Microstructure and piezoelectric properties of (Na,K)_0.5Bi_0.5 TiO₃ lead-free ceramics

Feng Gao
, Chang Song Zhang
, Wei Min Wang
, Ming Zhao
, Chang Sheng Tian

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

2 Scopus citations

Abstract

The effect of K_0.5Bi_0.5 TiO₃(KBT) on the microstructure and piezoelectric properties of(Na, K)_0.5Bi_0.5 TiO₃ lead-free piezoelectric ceramics was investigated. The results show that the density and the grain size decrease with increasing KBT, which lead to increase piezoelectric constant d₃₃, dielectric constant ε, and dielectric loss tanδ. But the mechanical quality factor Q_m will decrease with increasing KBT. The Curie temperature will increase from 326 °C to 360 °C as the content of KBT increases from 0.07mol to 0.20mol. The ceramics with composition (Na_0.85K_0.15)_0.5 Bi_0.5TiO₃ has excellent piezoelectric properties, which should be attributed to the composition lied near to the morphology phase boundary.

Original language	English
Pages (from-to)	43-47
Number of pages	5
Journal	Cailiao Gongcheng/Journal of Materials Engineering
Issue number	10
State	Published - Oct 2006

Keywords

Lead-free piezoelectric ceramics
Piezoelectric properties

Cite this

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title = "Microstructure and piezoelectric properties of (Na,K)0.5Bi0.5 TiO3 lead-free ceramics",

abstract = "The effect of K0.5Bi0.5 TiO3(KBT) on the microstructure and piezoelectric properties of(Na, K)0.5Bi0.5 TiO3 lead-free piezoelectric ceramics was investigated. The results show that the density and the grain size decrease with increasing KBT, which lead to increase piezoelectric constant d33, dielectric constant ε, and dielectric loss tanδ. But the mechanical quality factor Qm will decrease with increasing KBT. The Curie temperature will increase from 326 °C to 360 °C as the content of KBT increases from 0.07mol to 0.20mol. The ceramics with composition (Na0.85K0.15)0.5 Bi0.5TiO3 has excellent piezoelectric properties, which should be attributed to the composition lied near to the morphology phase boundary.",

keywords = "Lead-free piezoelectric ceramics, Piezoelectric properties",

author = "Feng Gao and Zhang, \{Chang Song\} and Wang, \{Wei Min\} and Ming Zhao and Tian, \{Chang Sheng\}",

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language = "英语",

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T1 - Microstructure and piezoelectric properties of (Na,K)0.5Bi0.5 TiO3 lead-free ceramics

AU - Gao, Feng

AU - Zhang, Chang Song

AU - Wang, Wei Min

AU - Zhao, Ming

AU - Tian, Chang Sheng

PY - 2006/10

Y1 - 2006/10

N2 - The effect of K0.5Bi0.5 TiO3(KBT) on the microstructure and piezoelectric properties of(Na, K)0.5Bi0.5 TiO3 lead-free piezoelectric ceramics was investigated. The results show that the density and the grain size decrease with increasing KBT, which lead to increase piezoelectric constant d33, dielectric constant ε, and dielectric loss tanδ. But the mechanical quality factor Qm will decrease with increasing KBT. The Curie temperature will increase from 326 °C to 360 °C as the content of KBT increases from 0.07mol to 0.20mol. The ceramics with composition (Na0.85K0.15)0.5 Bi0.5TiO3 has excellent piezoelectric properties, which should be attributed to the composition lied near to the morphology phase boundary.

AB - The effect of K0.5Bi0.5 TiO3(KBT) on the microstructure and piezoelectric properties of(Na, K)0.5Bi0.5 TiO3 lead-free piezoelectric ceramics was investigated. The results show that the density and the grain size decrease with increasing KBT, which lead to increase piezoelectric constant d33, dielectric constant ε, and dielectric loss tanδ. But the mechanical quality factor Qm will decrease with increasing KBT. The Curie temperature will increase from 326 °C to 360 °C as the content of KBT increases from 0.07mol to 0.20mol. The ceramics with composition (Na0.85K0.15)0.5 Bi0.5TiO3 has excellent piezoelectric properties, which should be attributed to the composition lied near to the morphology phase boundary.

KW - Lead-free piezoelectric ceramics

KW - Piezoelectric properties

UR - https://www.scopus.com/pages/publications/33845354874

M3 - 文章

AN - SCOPUS:33845354874

SN - 1001-4381

SP - 43

EP - 47

JO - Cailiao Gongcheng/Journal of Materials Engineering

JF - Cailiao Gongcheng/Journal of Materials Engineering

IS - 10

ER -

Microstructure and piezoelectric properties of (Na,K)_0.5Bi_0.5 TiO₃ lead-free ceramics

Abstract

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