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Journal of Materials Science

, Volume 29, Issue 23, pp 6076–6078 | Cite as

Preparation and characterization of Ln2Zr2O7 microspheres by an inorganic sol-gel route

  • A. K. Bhattacharya
  • A. Hartridge
  • K. K. Mallick
  • J. L. Woodhead
Article

Abstract

Free-flowing Ln2Zr2O7 microspheres (Ln=lanthanide) were prepared by an aqueous inorganic sol-gel route without any intermediate phase formation. The gel spheres obtained at room temperature were shown by X-ray diffraction to be amorphous but calcination to 750 °C produced fully crystalline fluorite phases. On calcination to 850 °C, pyrochlore phases were formed with suitable lanthanides. The microspheres were characterized by X-ray diffraction and scanning electron microscopy with energy dispersive analysis of X-rays to give accurate determination of structure, composition and crystallite size.

Keywords

Polymer Microscopy Electron Microscopy Scanning Electron Microscopy Calcination 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Chapman & Hall 1994

Authors and Affiliations

  • A. K. Bhattacharya
    • 1
  • A. Hartridge
    • 1
  • K. K. Mallick
    • 1
  • J. L. Woodhead
    • 1
  1. 1.Centre for Catalytic Systems and Materials Engineering, Department of EngineeringUniversity of WarwickCoventryUK

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