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Zirconia ceramic shaft/ceramic rod

Zirconia ceramic shaft/ceramic rod

Zirconium oxide occurs as monoclinic, tetragonal and cubic crystal

forms. Densely sintered parts can be manufactured as cubic

and/or tetragonal crystal forms. In order to stabilise these crystal

structures, stabilisers such as magnesium oxide (MgO), calcium

oxide (CaO) or yttrium oxide (Y2O3) need to be added to the ZrO2.

Other stabilisers sometimes used are cerium oxide (CeO2),

scandium oxide (Sc2O3) or ytterbium oxide (Yb2O3).

 

 

Unlike other ceramic materials, zirconia is a material with

very high resistance to crack propagation. Zirconium oxide ceramics also have very high thermal expansion

and are therefore often the material of choice for joining ceramic and steel.

 high fracture toughness

 thermal expansion similar to cast iron

 extremely high bending strength and tensile strength

 high resistance to wear and to corrosion

 low thermal conductivity