Journal of Materials Science

, Volume 24, Issue 12, pp 4432–4436 | Cite as

Destabilization of calcia stabilized zirconia

  • P. V. Ananthapadmanabhan
  • S. B. Menon
  • N. Venkatramani
  • V. K. Rohatgi
Papers

Abstract

Calcia stabilized zirconia (CSZ) is destabilized by Al2O3, SiO2 and TiO2 at elevated temperatures. The product of destabilization, termed partially destabilized zirconia (PDZ) has been found to possess excellent resistance to thermal shock. The thermomechanical properties of PDZ depend, to a great extent, on the degree of destabilization which is the amount (in weight percent) of free ZrO2 formed as a consequence of the destabilization reaction. The kinetics of the destabilization reaction has been studied by quantitative X-ray powder diffraction technique, and from the kinetic data, the optimum amount of the destabilizer required to get superior quality PDZ has been estimated.

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Copyright information

© Chapman and Hall Ltd 1989

Authors and Affiliations

  • P. V. Ananthapadmanabhan
    • 1
  • S. B. Menon
    • 1
  • N. Venkatramani
    • 1
  • V. K. Rohatgi
    • 1
  1. 1.Plasma Physics DivisionBhabha Atomic Research CentreTrombay, BombayIndia

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