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Zirconia Ceramics

Zirconia is one of the toughest ceramics with excellent resistance to corrosion and wear for demanding structural and mechanical applications.

Yttria stabilized tetragonal zirconia

Magnesia partially stabilized zirconia

Zirconia naturally occurs in the form of the mineral baddeleyite. For ceramics purposes, however, it is extracted from zirconium sand and other minerals containing zirconium in order to satisfy high standards of purity. Zirconia offers chemical and corrosion resistance at high temperatures up to 2100°C – well above the melting point of Alumina. In its pure form, crystal structure changes limit use in mechanical/temperature applications, but stabilised Zirconias with Ytrium Oxide or Magnesium additives can produce materials with very high strength, hardness and in particular, toughness.

Zirconia toughness alumina

Zirconia toughened alumina (ZTA) ceramic is a composite fine ceramic material, in which a certain content zirconia material is added inside to improve alumina comprehensive mechanical properties. Such kind of composite ceramic not noly have very high tougness and strength propoteries like zirconia, but also have very high hardness like alumina. Because of this high comprehensive property, ZTA ceramic has outstanding wear resistance. Reasonable component control and homogeneous structure of ZTA have very good property and was widely used in different application.

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