Physical properties

• High densityDensity reaches 6.0 g/cm³During the grinding process, it can provide greater impact energy, making it particularly suitable for grinding high-viscosity materials.。

• High hardnessVickers hardness exceeds 1200 kg/mm²Mohs hardness reaches level 9., with excellent wear resistance and low wear rate.。

• Low wearThe wear rate is extremely low, below 0.01%.Under high-speed grinding conditions, the wear rate is reduced by 40% compared to steel balls.。

• Impact resistanceCrushing strength exceeds 150 kgf., capable of withstanding the mechanical impact of high-speed operation in a sand mill.。

• Thermal stabilityTemperature resistance up to 600°CThe coefficient of thermal expansion is close to that of metals., maintaining strength and hardness unchanged even in high-temperature environments.。

• Surface characteristicsSmooth surface with a pearlescent luster., reducing material adhesion and maintaining a uniform wear pattern even after abrasion.。

Chemical properties

• High purityZrO₂ content ≥ 95%, with Y₂O₃ content ranging from 4.5% to 5.5%High chemical stability., does not react with most chemical substances.。

• Pollution-freeNo contamination of the material occurs during the grinding process., especially suitable for grinding materials with high purity requirements.。

Process performance

• Production processUsing dry powder isostatic pressing technologyBy applying a pressure of over 150 MPa, the powder is uniformly densified., and then sintered at a high temperature above 1550°C to form a microcrystalline structure., ensuring good anti-fragmentation performance under high-speed operating conditions.。

• Surface treatmentUsing precision polishing technology, making the sphericity error of the sphere less than 0.05mm, ensure the stability of equipment operation.。

Application Fields

• Precision MachiningIn the aerospace field, ultrafine grinding is used for titanium alloys and ceramic matrix composites.。

• Chemical productionUsed for titanium dioxide dispersion and wet grinding of polymer materials.。

• Electronic manufacturingUsed for polishing and dispersion of optical connector components.。

• Specialty MaterialsUsed for jewelry polishing and cell disruption in DNA/RNA extraction in biotechnology.。

• grinding mediaWidely used in equipment such as sand mills and ball mills.In the paint and coatings industry, its grinding efficiency is 30% higher than that of traditional media., and can reduce material contamination caused by media fragmentation.。

In summary, the 95% zirconia balls (ZrO₂) produced by Itoh of Japan, with their high density, high hardness, low wear, impact resistance, thermal stability, as well as excellent chemical stability and non-polluting properties, are widely used in multiple industrial fields, making them an ideal grinding medium and high-performance material.