Correlation between Phase Transitions and Piezoelectric Properties in Lead-Free (K,Na,Li)NbO3–BaTiO3 Ceramics
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概要
- 論文の詳細を見る
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.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2008-12-25
著者
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Nahm Sahn
Department Of Materials Science And Engineering Korea University
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Bae Kyoo-sik
Department Of Electronic Materials Engineering The University Of Suwon
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Ahn Cheol-Woo
Center for Energy Harvesting Materials and Systems, Materials Science and Engineering, Virginia Tech, Blacksburg, VA 24061, U.S.A.
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Park Chee-Sung
Center for Energy Harvesting Materials and Systems, Materials Science and Engineering, Virginia Tech, Blacksburg, VA 24061, U.S.A.
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Viehland Dwight
Center for Energy Harvesting Materials and Systems, Materials Science and Engineering, Virginia Tech, Blacksburg, VA 24061, U.S.A.
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Kang Dong-Heon
Department of Electronic Materials Engineering, Suwon University, Hwaseong, Gyeonggi-do 445-743, Korea
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Priya Shashank
Center for Energy Harvesting Materials and Systems, Materials Science and Engineering, Virginia Tech, Blacksburg, VA 24061, U.S.A.
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