Zirconia abrasive ball

aluminaceramicsilicon carbide

Innovacera develops all kinds of ceramic grinding media balls such as silicon nitride grinding balls, alumina ceramic grinding balls, zirconia grinding media balls which are important grinding media in industrial production and laboratory research. Ceramic grinding media, also called ceramic grinding beads or ceramic grinding bodies, are widely used in fields requiring superior grinding, polishing, and mixing processes. Ceramic Grinding Media Balls Features: - Effectively crushes and refines materials - High grinding efficiency - Very low abrasion - Outperforms in durability compared to traditional grinding media - Maintains shape and dimensional stability over extended periods - High chemical stability - Low contamination - Generates minimal harmful substances during grinding Ceramic Grinding Media Balls Applications: - Ultra-fine grinding and dispersion of high-purity powders, such as silicon nitride ceramic powder - Pharmaceutical - Aerospace - Metallurgy and Mining - Laboratory Research - Grinding and dispersing high-hardness materials, such as quartz - Electronics - Optics - Coatings and Paints - Cosmetics Ceramic Grinding Media Balls Material Properties Comparison: - ZrO2: zirconium oxide (ZrO2), yttria (Y2O3), 6.0 g/cm³, low, 2-3 W/m·K - Al2O3: aluminium oxide (High Purity), 3.75-3.95 g/cm³, middle, 20-30 W/mK - Si3N4: silicon nitride (Si3N4), 3.2 g/cm³, 15 – 50 W/mK - SiC: silicon carbide (SiC), 3.0 – 3.2 g/cm³, high, 100–120 W/m·K Ceramic Grinding Media Balls Sintering Way Comparison: - Gas Pressure Sintering (GPS): Temperature: 1800–1900℃, Sintering atmosphere pressure: 10 MPa, Residual minor porosity (99.2%), Meet Grade II–III Ball Standards - Hot Isostatic Pressing Sintering (HIP): Temperature: 1800–1900℃, Sintering atmosphere pressure: 200 MPa, Near full densification (99.8%), Performance indicators and fatigue life are significantly improved compared to GPS. Ceramic Grinding Media Balls Production Process: Ultra-fine High-purity Silicon Nitride Powder, Sintering Aids, Additives → Homogeneous Mixing → Spray-dried Granules → Cold Isostatic Pressing (CIP) → Green Body Machining → Sintering (Isostatic Pressing (HIP) or Gas Pressure Sintering (GPS)) → Balls Blank Inspection → Coarse Grinding, Precision Grinding, Ultra-fine Processing.