Correlation between phase transitions and piezoelectric properties in lead-free (K,Na,Li)NbO3-BaTiO3 ceramics

Cheol Woo Ahn; Chee Sung Park; Dwight Viehland; Sahn Nahm; Dong Heon Kang; Kyoo Sik Bae; Shashank Priya

doi:10.1143/JJAP.47.8880

Correlation between phase transitions and piezoelectric properties in lead-free (K,Na,Li)NbO₃-BaTiO₃ ceramics

Cheol Woo Ahn, Chee Sung Park, Dwight Viehland, Sahn Nahm, Dong Heon Kang, Kyoo Sik Bae, Shashank Priya

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

64 Citations (Scopus)

Abstract

In this manuscript, we report the polymorphic phase transitions, structural changes and piezoelectric properties of alkali niobate based lead-free ceramics. The phase transitions were characterized as a function of alkali niobate content at room temperature. The results clearly demonstrate that in this system high piezoelectric properties are achieved for a specific fraction of ferroelectric orthorhombic (O) and tetragonal (T) phases. Using Rietveld and powder diffraction analysis, a correlation was established among the piezoelectric response, the fraction of O and T phases, and KNN ratio for three different systems of (K,Na)NbO₃-BaTiO₃ (KNN-BT), KNN-LiNbO₃ (LN), and (K,Na,Li)NbO₃ (KNLN)-BT.

Original language	English
Pages (from-to)	8880-8883
Number of pages	4
Journal	Japanese journal of applied physics
Volume	47
Issue number	12
DOIs	https://doi.org/10.1143/JJAP.47.8880
Publication status	Published - 2008 Dec 19

Keywords

(K,Na,Li)NbO -BaTiO
Lead-free piezoelectric ceramics
Phase transition

ASJC Scopus subject areas

General Engineering
General Physics and Astronomy

Access to Document

10.1143/JJAP.47.8880

Cite this

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title = "Correlation between phase transitions and piezoelectric properties in lead-free (K,Na,Li)NbO3-BaTiO3 ceramics",

abstract = "In this manuscript, we report the polymorphic phase transitions, structural changes and piezoelectric properties of alkali niobate based lead-free ceramics. The phase transitions were characterized as a function of alkali niobate content at room temperature. The results clearly demonstrate that in this system high piezoelectric properties are achieved for a specific fraction of ferroelectric orthorhombic (O) and tetragonal (T) phases. Using Rietveld and powder diffraction analysis, a correlation was established among the piezoelectric response, the fraction of O and T phases, and KNN ratio for three different systems of (K,Na)NbO3-BaTiO3 (KNN-BT), KNN-LiNbO3 (LN), and (K,Na,Li)NbO3 (KNLN)-BT.",

keywords = "(K,Na,Li)NbO -BaTiO, Lead-free piezoelectric ceramics, Phase transition",

author = "Ahn, {Cheol Woo} and Park, {Chee Sung} and Dwight Viehland and Sahn Nahm and Kang, {Dong Heon} and Bae, {Kyoo Sik} and Shashank Priya",

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T1 - Correlation between phase transitions and piezoelectric properties in lead-free (K,Na,Li)NbO3-BaTiO3 ceramics

AU - Ahn, Cheol Woo

AU - Park, Chee Sung

AU - Viehland, Dwight

AU - Nahm, Sahn

AU - Kang, Dong Heon

AU - Bae, Kyoo Sik

AU - Priya, Shashank

PY - 2008/12/19

Y1 - 2008/12/19

N2 - In this manuscript, we report the polymorphic phase transitions, structural changes and piezoelectric properties of alkali niobate based lead-free ceramics. The phase transitions were characterized as a function of alkali niobate content at room temperature. The results clearly demonstrate that in this system high piezoelectric properties are achieved for a specific fraction of ferroelectric orthorhombic (O) and tetragonal (T) phases. Using Rietveld and powder diffraction analysis, a correlation was established among the piezoelectric response, the fraction of O and T phases, and KNN ratio for three different systems of (K,Na)NbO3-BaTiO3 (KNN-BT), KNN-LiNbO3 (LN), and (K,Na,Li)NbO3 (KNLN)-BT.

AB - In this manuscript, we report the polymorphic phase transitions, structural changes and piezoelectric properties of alkali niobate based lead-free ceramics. The phase transitions were characterized as a function of alkali niobate content at room temperature. The results clearly demonstrate that in this system high piezoelectric properties are achieved for a specific fraction of ferroelectric orthorhombic (O) and tetragonal (T) phases. Using Rietveld and powder diffraction analysis, a correlation was established among the piezoelectric response, the fraction of O and T phases, and KNN ratio for three different systems of (K,Na)NbO3-BaTiO3 (KNN-BT), KNN-LiNbO3 (LN), and (K,Na,Li)NbO3 (KNLN)-BT.

KW - (K,Na,Li)NbO -BaTiO

KW - Lead-free piezoelectric ceramics

KW - Phase transition

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