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 journalArticle

46 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 languageEnglish (US)
Pages (from-to)8880-8883
Number of pages4
JournalJapanese Journal of Applied Physics
Volume47
Issue number12
DOIs
StatePublished - Dec 19 2008

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niobates
alkalies
Lead
Phase transitions
ceramics
Ferroelectric materials
room temperature
diffraction
Temperature
Powder Diffraction

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Ahn, Cheol Woo ; Park, Chee Sung ; Viehland, Dwight ; Nahm, Sahn ; Kang, Dong Heon ; Bae, Kyoo Sik ; Priya, Shashank. / Correlation between phase transitions and piezoelectric properties in lead-free (K,Na,Li)NbO3-BaTiO3 ceramics. In: Japanese Journal of Applied Physics. 2008 ; Vol. 47, No. 12. pp. 8880-8883.
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Correlation between phase transitions and piezoelectric properties in lead-free (K,Na,Li)NbO3-BaTiO3 ceramics. / Ahn, Cheol Woo; Park, Chee Sung; Viehland, Dwight; Nahm, Sahn; Kang, Dong Heon; Bae, Kyoo Sik; Priya, Shashank.

In: Japanese Journal of Applied Physics, Vol. 47, No. 12, 19.12.2008, p. 8880-8883.

Research output: Contribution to journalArticle

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AU - Ahn, Cheol Woo

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AU - Priya, Shashank

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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.

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