Microstructures of some Bi-W-Nb-O phases

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11 Citations (Scopus)

Abstract

Microstructures of three Bi-W-Nb-O phases have been examined by using high-resolution transmission electron microscopy. Bi17W2Nb3O39, and Bi17WNb3O36 have incommensurate superstructures derived from the defect fluorite-type delta-Bi2O3 and can be regarded as intermediate phases between the type II solid solutions in the Bi-Nb-O and Bi-W-O systems. Bi8W2M2O23 has a Bi2WO6-like subunit cell with a stepped superstructure. Formation mechanisms of various superstructures are discussed. (C) 2002 Elsevier Science.

Original languageEnglish
Pages (from-to)479-483
Number of pages5
JournalJournal of Solid State Chemistry
Volume163
DOIs
Publication statusPublished - 1 Feb 2002

Keywords

  • transmission electron microscopy
  • Bi17W2Nb3O39
  • Bi17WNb3O36
  • incommensurate superstructures
  • Bi2O3
  • solid solutions
  • Bi8W2Nb2O23
  • Bi2WO6
  • AURIVILLIUS PHASES
  • ION CONDUCTORS
  • SOLID-SOLUTION
  • BI2O3-NB2O5
  • SYSTEM
  • CONDUCTIVITY
  • DIFFRACTION
  • BI2WO6
  • BI2O3

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