Structural and piezoelectric properties of (1 - x)(Na0.5K 0.5)NbO3-xBa(Ti0.9Sn0.1)O 3 lead-free Ceramics

Yu Joung Cha; Young Hun Jeong; Young Jin Lee; Jong Hoo Paik; Sahn Nahm

doi:10.1143/JJAP.49.020205

Structural and piezoelectric properties of (1 - x)(Na_0.5K _0.5)NbO₃-xBa(Ti_0.9Sn_0.1)O ₃ lead-free Ceramics

Yu Joung Cha, Young Hun Jeong, Young Jin Lee, Jong Hoo Paik, Sahn Nahm

Department of Materials Science and Engineering

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

3 Citations (Scopus)

Abstract

Lead-free (1 - x)(Na_0.5K_0.5)NbO _3-xBa(Ti_0.9Sn_0.1)O₃ ceramics doped with 1 mol % MnO₂ [(1 - x)NKN-xBTS] were prepared by the conventional solid state method and their structural and piezoelectric properties were investigated. The (1 - x)NKN-xBTS ceramics were well synthesized and a dense microstructure was achieved when sintered at 1050°C for 8h. The phase transition temperature of the tetragonal-cubic (T_c) peaks became broadened with increasing x, suggesting that a diffuse phase transition was induced and that the ceramic was changed gradually from a normal ferroelectric to a relaxor ferroelectric. The significantly enhanced piezoelectric properties of d₃₃ = 256 and k_p = 42% were obtained for the 0.94NKN-0.06BTS ceramics.

Original language	English
Article number	020205
Journal	Japanese journal of applied physics
Volume	49
Issue number	2 Part 1
DOIs	https://doi.org/10.1143/JJAP.49.020205
Publication status	Published - 2010 Feb

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

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title = "Structural and piezoelectric properties of (1 - x)(Na0.5K 0.5)NbO3-xBa(Ti0.9Sn0.1)O 3 lead-free Ceramics",

abstract = "Lead-free (1 - x)(Na0.5K0.5)NbO 3-xBa(Ti0.9Sn0.1)O3 ceramics doped with 1 mol % MnO2 [(1 - x)NKN-xBTS] were prepared by the conventional solid state method and their structural and piezoelectric properties were investigated. The (1 - x)NKN-xBTS ceramics were well synthesized and a dense microstructure was achieved when sintered at 1050°C for 8h. The phase transition temperature of the tetragonal-cubic (Tc) peaks became broadened with increasing x, suggesting that a diffuse phase transition was induced and that the ceramic was changed gradually from a normal ferroelectric to a relaxor ferroelectric. The significantly enhanced piezoelectric properties of d33 = 256 and kp = 42% were obtained for the 0.94NKN-0.06BTS ceramics.",

author = "Cha, {Yu Joung} and Jeong, {Young Hun} and Lee, {Young Jin} and Paik, {Jong Hoo} and Sahn Nahm",

year = "2010",

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doi = "10.1143/JJAP.49.020205",

language = "English",

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journal = "Japanese journal of applied physics",

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T1 - Structural and piezoelectric properties of (1 - x)(Na0.5K 0.5)NbO3-xBa(Ti0.9Sn0.1)O 3 lead-free Ceramics

AU - Cha, Yu Joung

AU - Jeong, Young Hun

AU - Lee, Young Jin

AU - Paik, Jong Hoo

AU - Nahm, Sahn

PY - 2010/2

Y1 - 2010/2

N2 - Lead-free (1 - x)(Na0.5K0.5)NbO 3-xBa(Ti0.9Sn0.1)O3 ceramics doped with 1 mol % MnO2 [(1 - x)NKN-xBTS] were prepared by the conventional solid state method and their structural and piezoelectric properties were investigated. The (1 - x)NKN-xBTS ceramics were well synthesized and a dense microstructure was achieved when sintered at 1050°C for 8h. The phase transition temperature of the tetragonal-cubic (Tc) peaks became broadened with increasing x, suggesting that a diffuse phase transition was induced and that the ceramic was changed gradually from a normal ferroelectric to a relaxor ferroelectric. The significantly enhanced piezoelectric properties of d33 = 256 and kp = 42% were obtained for the 0.94NKN-0.06BTS ceramics.

AB - Lead-free (1 - x)(Na0.5K0.5)NbO 3-xBa(Ti0.9Sn0.1)O3 ceramics doped with 1 mol % MnO2 [(1 - x)NKN-xBTS] were prepared by the conventional solid state method and their structural and piezoelectric properties were investigated. The (1 - x)NKN-xBTS ceramics were well synthesized and a dense microstructure was achieved when sintered at 1050°C for 8h. The phase transition temperature of the tetragonal-cubic (Tc) peaks became broadened with increasing x, suggesting that a diffuse phase transition was induced and that the ceramic was changed gradually from a normal ferroelectric to a relaxor ferroelectric. The significantly enhanced piezoelectric properties of d33 = 256 and kp = 42% were obtained for the 0.94NKN-0.06BTS ceramics.

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JO - Japanese journal of applied physics

JF - Japanese journal of applied physics

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Structural and piezoelectric properties of (1 - x)(Na_0.5K _0.5)NbO₃-xBa(Ti_0.9Sn_0.1)O ₃ lead-free Ceramics

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