Characteristics Of ZTA Balls

In the industrial environment of ZTA ceramics balls, it is not oxidized, not easily corroded, non-magnetic, resistant to high temperature of 1000 ° C, not easily deformed, and has a thermal expansion coefficient similar to that of metal, but is weakly resistant to strong acid and alkali corrosion. 

The density per cubic centimeter is as high as 5.95-6.05g/cm3. Among the four materials commonly used to make ceramic spheres (Si3N4, SiC, Al2O3, ZrO2), the toughness of zirconia ceramics is high, which can reach 10MPa m1/2 Above, the thermal expansion coefficient is close to the thermal expansion coefficient of metal, which can meet the requirement of good bonding with metal. 

ZTA ceramics balls have self-lubricating properties, which can solve the problems of pollution caused by lubricating medium and inconvenient addition; good corrosion resistance, can also be used in medium acid, medium alkali, seawater and other media; high temperature resistance, zirconia ceramics at 600 ℃ , The strength and hardness are almost unchanged; it is non-magnetic and insulating, and can also be used in a magnetic field.

However, the dimensional stability varies greatly with temperature, and the form of rolling fatigue contact failure is destructive fracture, which is not as stable as silicon nitride materials in some key occasions.