Identification of Tetragonal and Cubic Structures of Zirconia

Abstract

X-ray diffraction from a synchrotron source was employed in an attempt to identify definitively the crystal structures in zirconia ceramics produced by sol-gel method. The particles of chemically precipitated zirconia, after calcination below 600 C, are very fine, and have a diffracting particle size in the range of 7-15 nm. Since the tetragonal and cubic structures of zirconia have very similar lattice parameters, it is difficult to distinguish between the two. The tetragonal structure can be identified only by the characteristic splittings of the Bragg profiles from the 'c' index planes. However, these split Bragg peaks from the tetragonal phase in zirconia overlap with one another due to particle size broadening. In order to distinguish between the tetragonal and cubic structures of zirconia, three samples were studied using synchrotron radiation.

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Document Details

Document Type
Technical Report
Publication Date
May 29, 1990
Accession Number
ADA222373

Entities

People

  • Burton H. Davis
  • Gene Ice
  • Joel M. Harris
  • Ram Srinivasan
  • Robert J. De Angelis
  • Stanley F. Simpson

Organizations

  • University of Utah

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Chemistry
  • Crystal Structure
  • Crystals
  • Diffraction
  • Kentucky
  • Materials
  • Materials Science
  • Military Research
  • Particle Size
  • Raman Spectra
  • Raman Spectroscopy
  • Scattering
  • Spectra
  • Spectroscopy
  • United States
  • X Rays
  • X-Ray Diffraction

Readers

  • Powder metallurgy of Titanium alloys.
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.
  • Thin Film Deposition Science.