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Synthesis of Na0.5Bi0.5TiO3 whiskers and their nanoscale piezoelectricity

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  • Release time:2022-06-09

  • Impact Factor:3.83

  • DOI number:10.1016/j.ceramint.2017.05.321

  • Affiliation of Author(s):中南大学

  • Journal:Ceramics International

  • Key Words:Na0.5Bi0.5TiO3 whiskers Nanodomains Piezoelectric response

  • Abstract:The perovskite structured lead-free system Na0.5Bi0.5TiO3 (NBT) whiskers were synthesized from whiskers of layered tunnel structured Na2Ti6O13 (NT), using a topochemical route. Both NT and NBT whiskers show high aspect ratios with an average length of 15 µm and diameter of 1 µm. By prolonging the reaction time from 2 h to 6 h at 900 °C, NT whiskers with monoclinic phase completely transformed to NBT whiskers with pseudocubic phase. Typical strip-like nanodomains are observed in a NBT whisker, which are parallel to each other. The piezoelectric response amplitude for a NBT whisker indicates a large electric field induced strain, corresponding to a Smax/Emax value of as high as 300 pm/V. This work provides an in-depth instruction to prepare pure NBT whiskers, and gives the detailed piezoelectricity of NBT whiskers to promote their applications in energy harvesting and micro-electromechanical systems.

  • First Author:C. Jiang

  • Indexed by:Journal paper

  • Discipline:Engineering

  • First-Level Discipline:Materials Science and Engineering

  • Document Type:J

  • Volume:43

  • Issue:14

  • Page Number:11274-11280

  • ISSN No.:0272-8842

  • Translation or Not:no

  • Date of Publication:2017-05-25

  • Included Journals:SCI


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