• DocumentCode
    1228348
  • Title

    Permanence of Zirconia Stability, A Function of Purity

  • Author

    Smoot, Thomas W. ; King, Donald F.

  • Author_Institution
    Research Department, Harbison-Walker Refractories Company
  • Volume
    1
  • Issue
    2
  • fYear
    1963
  • Firstpage
    1192
  • Lastpage
    1197
  • Abstract
    The stability permanence of calcia-stabilized zirconia was studied during the course of repeated heat treatments. Zirconias with various degrees of purity and initial stability were tested. X-ray diffraction and thermal expansion measurements were used to determine stability changes. Standard purity samples were partially destabilized by cyclic heating through the temperature of monoclinic-tetragonal phase change (between 954°C and 1260° C), while very high purity samples withstood this and even more severe heat tests.
  • Keywords
    Chemicals; Heat treatment; Impurities; Magnesium compounds; Stability; Temperature distribution; Testing; Thermal expansion; X-ray diffraction; Zirconium;
  • fLanguage
    English
  • Journal_Title
    Aerospace, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0536-1516
  • Type

    jour

  • DOI
    10.1109/TA.1963.4319493
  • Filename
    4319493