Journal of Materials Science

, Volume 29, Issue 18, pp 4913–4917 | Cite as

Formation and hot isostatic pressing of ZrO2 solid solution in the system ZrO2-Al2O3

  • S. Inamura
  • H. Miyamoto
  • Y. Imaida
  • M. Takagawa
  • K. Hirota
  • O. Yamaguchi


In the system of ZrO2-Al2O3, cubic ZrO2 solid solutions containing up to 40 mol% Al2O3 crystallize at low temperatures from amorphous materials prepared by the simultaneous hydrolysis of zirconium and aluminium alkoxides. At higher temperatures, they transform into tetragonal solid solutions. Metastable ZrO2 solid solution powders containing 25 mol% Al2O3 have been sintered at 1000–1150 °C under 196 M Pausing the hot isostatic pressing technique. The solid solution ceramics consisting of homogeneous microstructure with an average grain size of ≈ 50 nm exhibited a very high fracture toughness of 23 MN m −1.5. They have been characterized by X-ray diffraction and electron probe surface analyses.


Al2O3 Fracture Toughness Alkoxide Probe Surface Homogeneous Microstructure 
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Copyright information

© Chapman & Hall 1994

Authors and Affiliations

  • S. Inamura
    • 1
  • H. Miyamoto
    • 1
  • Y. Imaida
    • 2
  • M. Takagawa
    • 2
  • K. Hirota
    • 2
  • O. Yamaguchi
    • 2
  1. 1.Osaka Prefectural Institute of Industrial TechnologyOsakaJapan
  2. 2.Faculty of EngineeringDoshisha UniversityKyotoJapan

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