Phase Transitions and Dielectric Properties in Bi(Zn1/2Ti1/2)O3–(Na1-yLiy)NbO3 Perovskite Solid Solutions

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概要

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• Perovskite solid solutions based on the system Bi(Zn1/2Ti1/2)O3–NaNbO3 were obtained via solid-state processing techniques. The crystal structure and ferroelectric phase transitions were studied by means of X-ray diffraction and dielectric measurements. A stable perovskite phase was obtained for Bi(Zn1/2Ti1/2)O3 substitutions up to 10 mol %. The dielectric characterization revealed that as the Bi(Zn1/2Ti1/2)O3 content increased, the transition temperature decreased and the transition peak became very diffuse. The polarization hysteresis loop and strain measurements presented evidence of an induced ferroelectric phase with 1 mol % Bi(Zn1/2Ti1/2)O3 substitutions. The planar coupling factor ($k_{\text{p}}$) for 0.01Bi(Zn1/2Ti1/2)O3–0.99NaNbO3 was measured to be 0.28. In addition, with the substitution of Li for Na in the Bi(Zn1/2Ti1/2)O3–(Na1-yLiy)NbO3 system, the diffuseness of the transition peak decreased and the transition temperature increased.

• 2009-03-25

著者

• Cann David

  Department of Mechanical Engineering, Oregon State University, Corvallis, OR 97331-6001, U.S.A.

• Gibbons Brady

  Department of Mechanical Engineering, Oregon State University, Corvallis, OR 97331-6001, U.S.A.

• Huang Chien-Chih

  Department of Mechanical Engineering, Oregon State University, Corvallis, OR 97331-6001, U.S.A.

• VITTAYAKORN Naratip

  Department of Chemistry, Faculty of Science, King Mongkut's Institute of Technology Ladkrabang

• Vittayakorn Naratip

  Department of Chemistry, King Mongkut's Institute of Technology Ladkrabang, Bangkok 10520, Thailand

• Prasatkhetragarn Anurak

  Department of Physics, Chiang Mai University, Chiang Mai 50200, Thailand

関連論文

• Phase Transitions and Dielectric Properties in Bi(Zn1/2Ti1/2)O3–(Na1-yLiy)NbO3 Perovskite Solid Solutions
• Synthesis and Dielectric and Ferroelectric Properties of Ceramics in ($1-x$)Pb(Zr1/2Ti1/2)O3–($x$)Pb(Co1/3Nb2/3)O3 System
• Phase Formation and Morphology of PbZrO3-Pb(Ni1/3Nb2/3)O3 Powders Via a Columbite Precursor Synthetic Route
• A-8 EFFECT OF CALCINATION TEMPERATURE ON MICROSTRUCTURE AND PHASE FORMATION OF Ba (Zr_xTi_)O_3 POWDERS(Session: Ceramics II)
• A-5 Phase formation and morphology of PbZrO_3-Pb(Ni_(1/3)Nb_(2/3))O_3 powders via a columbite precursor synthetic route(Session: Ceramics I)

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