Ceramic bead

zirconiagrinding

Product description
Innovacera supplies zirconia (ZrO2) ceramic milling beads and mill jars designed for fine grinding and milling. Standard bead sizes range from 0.05 mm to 30 mm; customized sizes and high-polish finishing are available on request. Zirconia mill jars offer very high hardness compared with standard steel and are commonly used as planetary ball mill jars and laboratory grinding pots. Standard jars are supplied with lids and seals; available volumes span 100 ml to 3 L, and custom designs/drawings are accepted.

Material properties

• Composition: ZrO2 94.60%, Y2O3 5.40%
• Color: White
• Specific density (true density): 6.0 g/cm3
• Bulk density: ~3.0 g/cm3
• Hardness: >10 GPa
• Elastic modulus: 205 GPa
• Fracture toughness: 7–10 MPa·m1/2
• Bending strength: 1150 MPa
• Grain size: <0.5 μm
• Thermal conductivity: 2.5 W/(m·K)
• Thermal expansion coefficient (20–400 °C): 9.6×10−6 K−1

Main features

• High density and mechanical strength
• Excellent roundness and smooth surface finish
• Very low wear rate
• Outstanding abrasion resistance
• Excellent chemical resistance to strong acids and alkalis
• Good dimensional and thermal stability

Application

• Food industry milling
• Paints and coatings
• Chemicals
• Cosmetics
• Electronics
• Laboratory and research milling

Technical specifications

• Bead size range: 0.05 mm to 30 mm (standard); custom sizes available
• Jar sizes: 100 ml to 3 L; custom designs accepted
• Composition: ZrO2 94.60%, Y2O3 5.40%
• Color: White
• True density: 6.0 g/cm3; bulk density ≈ 3.0 g/cm3
• Hardness: >10 GPa
• Elastic modulus: 205 GPa
• Fracture toughness: 7–10 MPa·m1/2
• Bending strength: 1150 MPa
• Grain size: <0.5 μm
• Thermal conductivity: 2.5 W/(m·K)
• Coefficient of thermal expansion (20–400 °C): 9.6×10−6 K−1
• Low wear rate and excellent chemical resistance