Microstructure and piezoelectric properties of (1-x)(Na0.5K 0.5)NbO3-xLiNbO3 ceramics

Hyun Cheol Song; Kyung Hoon Cho; Hwi Yeol Park; Cheol Woo Ahn; Sahn Nahm; Kenji Uchino; Seung Ho Park; Hyeung Gyu Lee

doi:10.1111/j.1551-2916.2007.01698.x

Microstructure and piezoelectric properties of (1-x)(Na_0.5K _0.5)NbO_3-xLiNbO₃ ceramics

Hyun Cheol Song, Kyung Hoon Cho, Hwi Yeol Park, Cheol Woo Ahn, Sahn Nahm, Kenji Uchino, Seung Ho Park, Hyeung Gyu Lee

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

111 Citations (Scopus)

Abstract

(1-x)(Na0.5K0.5)NbO3-xLiNbO3 [(1-x)NKN-xLN] ceramics were produced by the conventional solid-state sintering method, and their microstructure and piezoelectric properties were investigated. The formation of the liquid phase and K6Li4Nb10O30 second phase that were observed in the (1-x)NKN-xLN ceramics was explained by the evaporation of Na2O during the sintering. A morphotropic phase boundary (MPB) was observed in the specimens with 0.05<x<0.08. Promising piezoelectric properties were obtained for the specimens with x=0.07. Therefore, the piezoelectric properties of this 0.93NKN-0.07LN ceramic were further investigated and were found to be influenced by their relative density and grain size. In particular, grain size considerably affected the d33 value. Two-step sintering was conducted at different temperatures to increase the grain size. Piezoelectric properties of d33=240 (pC/N) and kp=0.35 were obtained for the 0.93NKN-0.07LN ceramics sintered at 1030°C and subsequently annealed at 1050°C.

Original language	English
Pages (from-to)	1812-1816
Number of pages	5
Journal	Journal of the American Ceramic Society
Volume	90
Issue number	6
DOIs	https://doi.org/10.1111/j.1551-2916.2007.01698.x
Publication status	Published - 2007 Jun

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

Access to Document

10.1111/j.1551-2916.2007.01698.x

Cite this

@article{d4e0005bc9c641c0b12481406de99818,

title = "Microstructure and piezoelectric properties of (1-x)(Na0.5K 0.5)NbO3-xLiNbO3 ceramics",

abstract = "(1-x)(Na0.5K0.5)NbO3-xLiNbO3 [(1-x)NKN-xLN] ceramics were produced by the conventional solid-state sintering method, and their microstructure and piezoelectric properties were investigated. The formation of the liquid phase and K6Li4Nb10O30 second phase that were observed in the (1-x)NKN-xLN ceramics was explained by the evaporation of Na2O during the sintering. A morphotropic phase boundary (MPB) was observed in the specimens with 0.05",

author = "Song, {Hyun Cheol} and Cho, {Kyung Hoon} and Park, {Hwi Yeol} and Ahn, {Cheol Woo} and Sahn Nahm and Kenji Uchino and Park, {Seung Ho} and Lee, {Hyeung Gyu}",

year = "2007",

month = jun,

doi = "10.1111/j.1551-2916.2007.01698.x",

language = "English",

volume = "90",

pages = "1812--1816",

journal = "Journal of the American Ceramic Society",

issn = "0002-7820",

publisher = "Wiley-Blackwell",

number = "6",

}

TY - JOUR

T1 - Microstructure and piezoelectric properties of (1-x)(Na0.5K 0.5)NbO3-xLiNbO3 ceramics

AU - Song, Hyun Cheol

AU - Cho, Kyung Hoon

AU - Park, Hwi Yeol

AU - Ahn, Cheol Woo

AU - Nahm, Sahn

AU - Uchino, Kenji

AU - Park, Seung Ho

AU - Lee, Hyeung Gyu

PY - 2007/6

Y1 - 2007/6

N2 - (1-x)(Na0.5K0.5)NbO3-xLiNbO3 [(1-x)NKN-xLN] ceramics were produced by the conventional solid-state sintering method, and their microstructure and piezoelectric properties were investigated. The formation of the liquid phase and K6Li4Nb10O30 second phase that were observed in the (1-x)NKN-xLN ceramics was explained by the evaporation of Na2O during the sintering. A morphotropic phase boundary (MPB) was observed in the specimens with 0.05

AB - (1-x)(Na0.5K0.5)NbO3-xLiNbO3 [(1-x)NKN-xLN] ceramics were produced by the conventional solid-state sintering method, and their microstructure and piezoelectric properties were investigated. The formation of the liquid phase and K6Li4Nb10O30 second phase that were observed in the (1-x)NKN-xLN ceramics was explained by the evaporation of Na2O during the sintering. A morphotropic phase boundary (MPB) was observed in the specimens with 0.05

UR - http://www.scopus.com/inward/record.url?scp=34249859141&partnerID=8YFLogxK

U2 - 10.1111/j.1551-2916.2007.01698.x

DO - 10.1111/j.1551-2916.2007.01698.x

M3 - Article

AN - SCOPUS:34249859141

SN - 0002-7820

VL - 90

SP - 1812

EP - 1816

JO - Journal of the American Ceramic Society

JF - Journal of the American Ceramic Society

IS - 6

ER -

Microstructure and piezoelectric properties of (1-x)(Na_0.5K _0.5)NbO_3-xLiNbO₃ ceramics

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this