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Materials
Junty > Material > Zirconia
 
            
Zirconium Dioxide Zirconia shaft bushing valve seat
Zirconia Oxide(Structural ceramics)-also named engineering ceramics, has excellent wear and corrosion resistance. Good performance on hardness and strength. It has the following properties:

Zirconium Dioxide Zirconia shaft bushing valve seat
   
Density g/cm3 >6.0
Hardness(HV) KG/mm2 >1200
Modulus of Elasticity Gpa 200
Thermal Conductivity W/(m.k) 3(20-400oC)
Thermal Expansion Coefficient 10-6K-1 9.6
Crushing Load KN >=25(Φ6.5mm)
Fracture Toughness Mpa.m1/2 8
Grain Size μm 0.5
 
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