Structural and piezoelectric properties of (1 - x)(Na0.5K 0.5)NbO3-xBa(Ti0.9Sn0.1)O 3 lead-free Ceramics

Yu Joung Cha, Young Hun Jeong, Young Jin Lee, Jong Hoo Paik, Sahn Nahm

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3 Citations (Scopus)

Abstract

Lead-free (1 - x)(Na0.5K0.5)NbO 3-xBa(Ti0.9Sn0.1)O3 ceramics doped with 1 mol % MnO2 [(1 - x)NKN-xBTS] were prepared by the conventional solid state method and their structural and piezoelectric properties were investigated. The (1 - x)NKN-xBTS ceramics were well synthesized and a dense microstructure was achieved when sintered at 1050°C for 8h. The phase transition temperature of the tetragonal-cubic (Tc) peaks became broadened with increasing x, suggesting that a diffuse phase transition was induced and that the ceramic was changed gradually from a normal ferroelectric to a relaxor ferroelectric. The significantly enhanced piezoelectric properties of d33 = 256 and kp = 42% were obtained for the 0.94NKN-0.06BTS ceramics.

Original languageEnglish
Article number020205
JournalJapanese journal of applied physics
Volume49
Issue number2 Part 1
DOIs
Publication statusPublished - 2010 Feb

ASJC Scopus subject areas

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

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