Hardening behavior of Mn-modified KNN-BT thick films fabricated by aerosol deposition

Guifang Han; Shashank Priya; Jungho Ryu; Woon Ha Yoon; Jong Jin Choi; Byung Dong Hahn; Dong Soo Park

doi:10.1016/j.matlet.2010.09.077

Hardening behavior of Mn-modified KNN-BT thick films fabricated by aerosol deposition

Guifang Han, Shashank Priya, Jungho Ryu, Woon Ha Yoon, Jong Jin Choi, Byung Dong Hahn, Dong Soo Park

Materials Science and Engineering

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

6 Scopus citations

Abstract

Highly dense, 30 μm-thick 0.95(K_0.5Na_0.5)NbO ₃-0.05BaTiO₃ (KNN-BT) lead-free films were successfully fabricated on alumina substrate by aerosol deposition (AD) and the effect of Mn doping (0 mol%, 0.5 mol% and 1.0 mol%) on the film properties was investigated. It was found that low field dielectric constant decreases by 36% for 0.5 mol% Mn doping and 42% for 1 mol% Mn doping. The loss factor was found to reduce by 19% for 0.5 mol% Mn doping and 43% for 1 mol% Mn doping. Based on the high field polarization-electric field measurement, we demonstrate that Mn induces hardening in KNN-BT thick films. The hardening is believed to be due to the pinning of the domains by dipolar defects at domain boundaries.

Original language	English (US)
Pages (from-to)	278-281
Number of pages	4
Journal	Materials Letters
Volume	65
Issue number	2
DOIs	https://doi.org/10.1016/j.matlet.2010.09.077
State	Published - Jan 31 2011

All Science Journal Classification (ASJC) codes

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/j.matlet.2010.09.077

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@article{c8fa7893ef154dca8b034d5177024939,

title = "Hardening behavior of Mn-modified KNN-BT thick films fabricated by aerosol deposition",

abstract = "Highly dense, 30 μm-thick 0.95(K0.5Na0.5)NbO 3-0.05BaTiO3 (KNN-BT) lead-free films were successfully fabricated on alumina substrate by aerosol deposition (AD) and the effect of Mn doping (0 mol%, 0.5 mol% and 1.0 mol%) on the film properties was investigated. It was found that low field dielectric constant decreases by 36% for 0.5 mol% Mn doping and 42% for 1 mol% Mn doping. The loss factor was found to reduce by 19% for 0.5 mol% Mn doping and 43% for 1 mol% Mn doping. Based on the high field polarization-electric field measurement, we demonstrate that Mn induces hardening in KNN-BT thick films. The hardening is believed to be due to the pinning of the domains by dipolar defects at domain boundaries.",

author = "Guifang Han and Shashank Priya and Jungho Ryu and Yoon, {Woon Ha} and Choi, {Jong Jin} and Hahn, {Byung Dong} and Park, {Dong Soo}",

note = "Funding Information: This research was supported by a grant from the Fundamental R&D Program for Core Technology of Materials funded by the Ministry of Knowledge Economy, Republic of Korea . ",

year = "2011",

month = jan,

day = "31",

doi = "10.1016/j.matlet.2010.09.077",

language = "English (US)",

volume = "65",

pages = "278--281",

journal = "Materials Letters",

issn = "0167-577X",

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T1 - Hardening behavior of Mn-modified KNN-BT thick films fabricated by aerosol deposition

AU - Han, Guifang

AU - Priya, Shashank

AU - Ryu, Jungho

AU - Yoon, Woon Ha

AU - Choi, Jong Jin

AU - Hahn, Byung Dong

AU - Park, Dong Soo

N1 - Funding Information: This research was supported by a grant from the Fundamental R&D Program for Core Technology of Materials funded by the Ministry of Knowledge Economy, Republic of Korea .

PY - 2011/1/31

Y1 - 2011/1/31

N2 - Highly dense, 30 μm-thick 0.95(K0.5Na0.5)NbO 3-0.05BaTiO3 (KNN-BT) lead-free films were successfully fabricated on alumina substrate by aerosol deposition (AD) and the effect of Mn doping (0 mol%, 0.5 mol% and 1.0 mol%) on the film properties was investigated. It was found that low field dielectric constant decreases by 36% for 0.5 mol% Mn doping and 42% for 1 mol% Mn doping. The loss factor was found to reduce by 19% for 0.5 mol% Mn doping and 43% for 1 mol% Mn doping. Based on the high field polarization-electric field measurement, we demonstrate that Mn induces hardening in KNN-BT thick films. The hardening is believed to be due to the pinning of the domains by dipolar defects at domain boundaries.

AB - Highly dense, 30 μm-thick 0.95(K0.5Na0.5)NbO 3-0.05BaTiO3 (KNN-BT) lead-free films were successfully fabricated on alumina substrate by aerosol deposition (AD) and the effect of Mn doping (0 mol%, 0.5 mol% and 1.0 mol%) on the film properties was investigated. It was found that low field dielectric constant decreases by 36% for 0.5 mol% Mn doping and 42% for 1 mol% Mn doping. The loss factor was found to reduce by 19% for 0.5 mol% Mn doping and 43% for 1 mol% Mn doping. Based on the high field polarization-electric field measurement, we demonstrate that Mn induces hardening in KNN-BT thick films. The hardening is believed to be due to the pinning of the domains by dipolar defects at domain boundaries.

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U2 - 10.1016/j.matlet.2010.09.077

DO - 10.1016/j.matlet.2010.09.077

M3 - Article

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SN - 0167-577X

VL - 65

SP - 278

EP - 281

JO - Materials Letters

JF - Materials Letters

IS - 2

ER -

Hardening behavior of Mn-modified KNN-BT thick films fabricated by aerosol deposition

Abstract

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