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Zirconium ball

Zirconium ball

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Advantages of ZrO2 Ceramic Ball
High hardness
Good wear resistance
High mechanical strength
Low wear loss
Corrosion resistance
Non-conducted, low thermal conduction
High thermal expansion rate
Non-greased and self lubrication
Applications
Special bearings, high-speed bearings, under vacuum pumps, pumps and valves in corrosive environments, compressors, centrifugal pumps, shafts/mandrill, recirculation balls, flow meters, measurement instruments, pump jacks. They are used in aerospace and military industry.

Item

unit

Zirconium

Chemical composition

Y2O3

%

5.21

FeO3

<0.001

Na2O

<0.001

SiO2

<0.001

TiO2

<0.001

 

ZrO2

>94

Density

g/cm3

≥6.0

Hardness

Kg/mm2

1100~1300

Bending strength

Mpa

>950

Fracture toughness

Mpa.m-3/2

8.0~10.0

Elastics modulus

Gpa

210

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