Topochemical synthesis of plate-like Na0.5Bi 0.5TiO3 from aurivillius precursor

Wei Zhao, Heping Zhou, Yongke Yan, Dan Liu

Research output: Contribution to journalArticlepeer-review

35 Scopus citations

Abstract

Plate-like Na0.5Bi0.5TiO3 (NBT) particles with perovskite structure were synthesized by topochemical microcrystal conversion from plate-like particles of layer-structured Na0.5Bi 4.5Ti4O15 (NBIT) at 950°C in NaCl molten salt. As the precursors of NBT, plate-like NBIT particles were first synthesized by molten salt process by the reaction of Bi4Ti3O 12, Na2CO3, and TiO2. After the topochemical reactions, layer-structured NBIT particles were transformed to the perovskite NBT platelets. NBT particles with a thickness of approximately 0.5 μm and a length of 10-15 μm retained the morphology feature of the precursor. High-aspect-ratio NBT platelets are suitable templates to obtain textured ceramics (especially NBT-based ceramics) by (reactive) template grain growth process.

Original languageEnglish (US)
Pages (from-to)1322-1325
Number of pages4
JournalJournal of the American Ceramic Society
Volume91
Issue number4
DOIs
StatePublished - Apr 1 2008

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

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