Preparation and improvement in the electrical properties of lead-zinc-niobate-based ceramics by thermal treatments

Huiqing Fan; Gun Tae Park; Jong Jin Choi; Jungho Ryu; Hyoun Ee Kim

doi:10.1557/JMR.2002.0027

Preparation and improvement in the electrical properties of lead-zinc-niobate-based ceramics by thermal treatments

Huiqing Fan, Gun Tae Park, Jong Jin Choi, Jungho Ryu, Hyoun Ee Kim

Seoul National University

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

39 Scopus citations

Abstract

The piezoelectric and dielectric properties of Pb(Zn_1/3Nb_2/3)O₃ (PZN)-based ceramics were investigated. The perovskite structure of PZN ceramics was stabilized by the addition of Pb(Zn_0.47Ti_0.53)O₃ (PZT). The highest piezoelectric properties were observed for the composition of 0.5PZN-0.5PZT, which lies on the two-phase zone of morphotropic phase boundary. For further improvements in electric properties, the specimens were thermally treated in a flowing O₂ atmosphere at temperatures ranging from 860 to 1030 °C. The thermal treatment eliminated the PbO-rich amorphous intergranular layer by lead evaporation. As a result of this improvement in structure, the dielectric constant (ε′), the piezoelectric coefficient (d₃₃), and the electromechanical coupling factor (k_p), were enhanced markedly after thermal annealing at 960 °C for 8 h in an O₂ atmosphere.

Original language	English
Pages (from-to)	180-185
Number of pages	6
Journal	Journal of Materials Research
Volume	17
Issue number	1
DOIs	https://doi.org/10.1557/JMR.2002.0027
State	Published - Jan 2002
Externally published	Yes

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title = "Preparation and improvement in the electrical properties of lead-zinc-niobate-based ceramics by thermal treatments",

abstract = "The piezoelectric and dielectric properties of Pb(Zn1/3Nb2/3)O3 (PZN)-based ceramics were investigated. The perovskite structure of PZN ceramics was stabilized by the addition of Pb(Zn0.47Ti0.53)O3 (PZT). The highest piezoelectric properties were observed for the composition of 0.5PZN-0.5PZT, which lies on the two-phase zone of morphotropic phase boundary. For further improvements in electric properties, the specimens were thermally treated in a flowing O2 atmosphere at temperatures ranging from 860 to 1030 °C. The thermal treatment eliminated the PbO-rich amorphous intergranular layer by lead evaporation. As a result of this improvement in structure, the dielectric constant (ε′), the piezoelectric coefficient (d33), and the electromechanical coupling factor (kp), were enhanced markedly after thermal annealing at 960 °C for 8 h in an O2 atmosphere.",

author = "Huiqing Fan and Park, {Gun Tae} and Choi, {Jong Jin} and Jungho Ryu and Kim, {Hyoun Ee}",

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AU - Fan, Huiqing

AU - Park, Gun Tae

AU - Choi, Jong Jin

AU - Ryu, Jungho

AU - Kim, Hyoun Ee

PY - 2002/1

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N2 - The piezoelectric and dielectric properties of Pb(Zn1/3Nb2/3)O3 (PZN)-based ceramics were investigated. The perovskite structure of PZN ceramics was stabilized by the addition of Pb(Zn0.47Ti0.53)O3 (PZT). The highest piezoelectric properties were observed for the composition of 0.5PZN-0.5PZT, which lies on the two-phase zone of morphotropic phase boundary. For further improvements in electric properties, the specimens were thermally treated in a flowing O2 atmosphere at temperatures ranging from 860 to 1030 °C. The thermal treatment eliminated the PbO-rich amorphous intergranular layer by lead evaporation. As a result of this improvement in structure, the dielectric constant (ε′), the piezoelectric coefficient (d33), and the electromechanical coupling factor (kp), were enhanced markedly after thermal annealing at 960 °C for 8 h in an O2 atmosphere.

AB - The piezoelectric and dielectric properties of Pb(Zn1/3Nb2/3)O3 (PZN)-based ceramics were investigated. The perovskite structure of PZN ceramics was stabilized by the addition of Pb(Zn0.47Ti0.53)O3 (PZT). The highest piezoelectric properties were observed for the composition of 0.5PZN-0.5PZT, which lies on the two-phase zone of morphotropic phase boundary. For further improvements in electric properties, the specimens were thermally treated in a flowing O2 atmosphere at temperatures ranging from 860 to 1030 °C. The thermal treatment eliminated the PbO-rich amorphous intergranular layer by lead evaporation. As a result of this improvement in structure, the dielectric constant (ε′), the piezoelectric coefficient (d33), and the electromechanical coupling factor (kp), were enhanced markedly after thermal annealing at 960 °C for 8 h in an O2 atmosphere.

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Preparation and improvement in the electrical properties of lead-zinc-niobate-based ceramics by thermal treatments

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