Zirconia Beads
Zirconia beads, also known as zirconia grinding beads or TZP zirconia beads, are mainly yttria-stabilized tetragonal zirconia beads (Y-TZP / 95% zirconia beads). Manufactured from high-purity zirconia powder with yttrium oxide as stabilizer via spray granulation and high-temperature dense sintering, these white spherical ceramic pellets serve as premium media for wet and dry ultra-fine grinding and dispersion. They are widely adopted in industrial applications demanding strict material purity.
1. Basic Composition
ZrO₂ ≥94.5%, Y₂O₃: 4.5%~5.5%
True density ≥6.0 g/cm³, bulk density: 3.7~3.9 g/cm³
Mohs hardness: Grade 9, excellent fracture toughness with transformation toughening property.
2. Standard Available Sizes (Custom screening available)
φ0.05mm, 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6~0.8mm, 1.0mm, 1.2~1.6mm, 2.0mm, 2.5mm, 3.0mm, 5.0mm, 10mm
Selection guide: Smaller sizes for nano fine grinding; larger sizes for coarse grinding and pre-dispersion of hard materials.
3. Compatible Equipment
Horizontal bead mills, vertical agitator mills, pin-type nano bead mills, planetary ball mills, vibration mills and circulation grinding systems.
1. High Grinding Efficiency
High density delivers stronger impact energy under identical rotation speed. Its grinding efficiency is 2–3 times that of zircon silicate beads and 6–8 times that of glass beads, enabling easier nano-scale ultra-fine pulverization.
2. High Toughness, Low Breakage Risk
Unlike brittle alumina beads, it withstands high-speed impact. It rarely cracks or peels during long-term operation in pin-type bead mills and planetary ball mills, avoiding material contamination caused by broken beads.
3. Ultra-low Wear to Ensure Material Purity
Chemically inert, resistant to acids, alkalis (pH 2–14) and various organic solvents. Wear loss reaches ppm level with minimal ion leaching during grinding, realizing nearly zero contamination. Ideal for high-value materials such as lithium battery materials and pharmaceuticals.
4. Smooth Surface & Good Flowability
High sphericity reduces friction coefficient and lessens abrasion on mill cylinders and dispersing discs. Easy to clean and prevents cross-contamination when switching materials.
5. Stable Performance
Non-magnetic, insulating and heat-resistant. Hardness and mechanical strength remain stable at temperatures up to 600℃.
|
Item |
Unit | Specification |
|
Composition |
wt% |
94.5% ZrO 25.2% Y2O3 |
|
Bulk Density |
Kg/L |
>3.6(Φ2mm) |
|
Specific Density |
g/cm3 |
≥6.02 |
|
Hardness |
Moh's |
>9.0 |
| Elastic Modulus |
GPa |
200 |
| Thermal Conductivity |
W/m.K |
3 |
| Crushing Load |
KN |
≥20 (Φ2mm) |
| Fracture Toughness | MPam1-2 |
9 |
|
Grain Size |
µm |
≤0.5 |
| Wear Loss | ppm/h |
<0.12 |
1. New Energy Lithium Battery Industry (Major Application)
Ultra-fine grinding and dispersion of lithium iron phosphate, ternary cathode materials, silicon-carbon anode, graphite, graphene, conductive agents and ceramic separator slurry.
2. Coatings & Inks Industry
UV inks, digital printing inks, automotive topcoats, industrial coatings, color pastes, ceramic glazes, encapsulated pigments, titanium dioxide and nano pigments.
3. Electronics & Magnetic Materials
MLCC ceramic powder, soft/hard magnetic materials, conductive silver paste, phosphor powder and piezoelectric ceramic raw materials.
4. Pharmaceuticals, Cosmetics & Food
Pharmaceutical powder, nano preparations, cosmetic powder and food additives grinding; risk-free of heavy metal precipitation.
5. Fine Chemicals
Pesticide suspension concentrates, resins, fillers and ultra-fine processing of non-metallic minerals. Also used for workpiece polishing, precision ceramic bearing balls and valve sealing balls.
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