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Journal of Materials Science

, Volume 26, Issue 5, pp 1346–1350 | Cite as

Hydrothermal corrosion of magnesiapartially-stabilized zirconia

  • T. Sato
  • T. Endo
  • M. Shimada
  • T. Mitsudome
  • N. Otabe
Papers

Abstract

Changes in the phase compositions and microstructures of magnesia-partially-stabilized zirconia (Mg-PSZ) were studied in water at 80–300 °C, 1 m HCl solutions at 80–140 °C and 1 m CH3COOH-CH3COONa buffer solutions at pH 3 and 80–140 °C for 10–40 days. The tetragonal to monoclinic phase transformation and the degradation of the fracture strength occurred in water above 200 °C. On the other hand, although no noticeable tetragonal to monoclinic phase transformation proceeded in 1 m HCl solutions and 1 m CH3COOH-CH3-COONa buffer solutions at pH 3 below 140 °C, the fracture strength of Mg-PSZ greatly degraded. The dissolution of Mg2+ ion was observed in water above 200 °C and in 1 m HCl solutions above 80 °C.

Keywords

Polymer Microstructure Zirconia Phase Transformation Phase Composition 
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 and Hall Ltd. 1991

Authors and Affiliations

  • T. Sato
    • 1
  • T. Endo
    • 1
  • M. Shimada
    • 1
  • T. Mitsudome
    • 2
  • N. Otabe
    • 2
  1. 1.Department of Molecular Chemistry and Engineering, Faculty of EngineeringTohoku UniversitySendaiJapan
  2. 2.New Materials DivisionNew Steel CorporationTokyoJapan

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