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Journal of Materials Science

, Volume 42, Issue 18, pp 7827–7831 | Cite as

Structural and electric properties of (Na0.5Bi0.5)0.88Ba0.12TiO3

  • J. SuchaniczEmail author
  • J. Kusz
  • H. Böhm
  • G. Stopa
Article

Abstract

Lead-free (Na0.5Bi0.5)0.88Ba0.12TiO3 ceramics have been prepared and studied by X-ray diffraction and by the complex dielectric response as a function of temperature, frequency and a.c. field intensity. Relaxor-like dielectric behaviour were induced by barium Ba dopping to Na0.5Bi0.5TiO3. It was shown, that relaxor-like characteristics can be enhanced by the increase of the a.c. field intensity. A sharp increase in the electric permittivity and dielectric loss on heating near 230 °C has been observed. This sharp increase in dielectric responses indicates a transformation between classical and relaxor ferroelectric phases. The X-ray diffraction study shows that this transformation corresponds to the first order phase transition from tetragonal to cubic. The use of (Na0.5Bi0.5)0.88Ba0.12TiO3 ceramics for device applications has been indicated.

Keywords

BaTiO3 Order Phase Transition Structural Phase Transition Thermal Hysteresis Remanent Polarization 

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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  1. 1.Institute of PhysicsPedagogical AcademyKrakowPoland
  2. 2.Institute of PhysicsUniversity of SilesiaKatowicePoland
  3. 3.Institut für GeowissenschaftenJohannes Gutenberg UniversitätMainzGermany

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