Effect of MnO2 on the piezoelectric properties of (1 - X)(Na0.5K0.5)NbO3-xBaTiO3 ceramics

Cheol Woo Ahn; Hyun Cheol Song; Sahn Nahm; Seung Ho Park; Kenji Uchino; Shashank Priya; Hyeung Gyu Lee; Nam Kee Rang

doi:10.1143/JJAP.44.L1361

Effect of MnO₂ on the piezoelectric properties of (1 - X)(Na_0.5K_0.5)NbO₃-xBaTiO₃ ceramics

Cheol Woo Ahn, Hyun Cheol Song, Sahn Nahm, Seung Ho Park, Kenji Uchino, Shashank Priya, Hyeung Gyu Lee, Nam Kee Rang

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

103 Scopus citations

Abstract

(Na_0.5K_0.5)NbO₃ (NKN) and BaTiO ₃ (BT) ceramics form a homogeneous solid solution. The relative density of the (1 - x)NKN-xBT solid solutions significantly decreased when x ≤ 0.07. Although the relative density of the 0.95NKN-0.05BT ceramic was very low, it had a high d₃₃ value of 134pC/N. MnO₂ was added to improve the piezoelectric properties of the 0.95NKN-0.05BT ceramics by enhancing their sinterability. The addition of MnO₂ increased the density of the specimens, as well as improving the piezoelectric properties. The 0.9 mol% MnO₂ added 0.95NKN-0.05BT ceramics showed the good piezoelectric properties of k_p = 0.31, d₃₃ = 194pC/N and ε₃^T/= 800.

Original language	English (US)
Pages (from-to)	L1361-L1364
Journal	Japanese Journal of Applied Physics, Part 2: Letters
Volume	44
Issue number	42-45
DOIs	https://doi.org/10.1143/JJAP.44.L1361
State	Published - 2005
Externally published	Yes

Keywords

(NaK)Nbo
BaTio
Lead-free piezoelectric ceramics
Mno

Publisher link

10.1143/JJAP.44.L1361

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@article{a12f7624a3974fd7a1fe1b649e4e609b,

title = "Effect of MnO2 on the piezoelectric properties of (1 - X)(Na0.5K0.5)NbO3-xBaTiO3 ceramics",

abstract = "(Na0.5K0.5)NbO3 (NKN) and BaTiO 3 (BT) ceramics form a homogeneous solid solution. The relative density of the (1 - x)NKN-xBT solid solutions significantly decreased when x ≤ 0.07. Although the relative density of the 0.95NKN-0.05BT ceramic was very low, it had a high d33 value of 134pC/N. MnO2 was added to improve the piezoelectric properties of the 0.95NKN-0.05BT ceramics by enhancing their sinterability. The addition of MnO2 increased the density of the specimens, as well as improving the piezoelectric properties. The 0.9 mol% MnO2 added 0.95NKN-0.05BT ceramics showed the good piezoelectric properties of kp = 0.31, d33 = 194pC/N and ε3T/= 800.",

keywords = "(NaK)Nbo, BaTio, Lead-free piezoelectric ceramics, Mno",

author = "Ahn, {Cheol Woo} and Song, {Hyun Cheol} and Sahn Nahm and Park, {Seung Ho} and Kenji Uchino and Shashank Priya and Lee, {Hyeung Gyu} and Rang, {Nam Kee}",

year = "2005",

doi = "10.1143/JJAP.44.L1361",

language = "English (US)",

volume = "44",

pages = "L1361--L1364",

journal = "Japanese Journal of Applied Physics, Part 2: Letters",

issn = "0021-4922",

publisher = "Japan Society of Applied Physics",

number = "42-45",

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TY - JOUR

T1 - Effect of MnO2 on the piezoelectric properties of (1 - X)(Na0.5K0.5)NbO3-xBaTiO3 ceramics

AU - Ahn, Cheol Woo

AU - Song, Hyun Cheol

AU - Nahm, Sahn

AU - Park, Seung Ho

AU - Uchino, Kenji

AU - Priya, Shashank

AU - Lee, Hyeung Gyu

AU - Rang, Nam Kee

PY - 2005

Y1 - 2005

N2 - (Na0.5K0.5)NbO3 (NKN) and BaTiO 3 (BT) ceramics form a homogeneous solid solution. The relative density of the (1 - x)NKN-xBT solid solutions significantly decreased when x ≤ 0.07. Although the relative density of the 0.95NKN-0.05BT ceramic was very low, it had a high d33 value of 134pC/N. MnO2 was added to improve the piezoelectric properties of the 0.95NKN-0.05BT ceramics by enhancing their sinterability. The addition of MnO2 increased the density of the specimens, as well as improving the piezoelectric properties. The 0.9 mol% MnO2 added 0.95NKN-0.05BT ceramics showed the good piezoelectric properties of kp = 0.31, d33 = 194pC/N and ε3T/= 800.

AB - (Na0.5K0.5)NbO3 (NKN) and BaTiO 3 (BT) ceramics form a homogeneous solid solution. The relative density of the (1 - x)NKN-xBT solid solutions significantly decreased when x ≤ 0.07. Although the relative density of the 0.95NKN-0.05BT ceramic was very low, it had a high d33 value of 134pC/N. MnO2 was added to improve the piezoelectric properties of the 0.95NKN-0.05BT ceramics by enhancing their sinterability. The addition of MnO2 increased the density of the specimens, as well as improving the piezoelectric properties. The 0.9 mol% MnO2 added 0.95NKN-0.05BT ceramics showed the good piezoelectric properties of kp = 0.31, d33 = 194pC/N and ε3T/= 800.

KW - (NaK)Nbo

KW - BaTio

KW - Lead-free piezoelectric ceramics

KW - Mno

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JO - Japanese Journal of Applied Physics, Part 2: Letters

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