ZTA Composite Zirconia Toughened Alumina Grinding Balls Pebbles Impact Resistance
Zirconia-Toughened Alumina (ZTA) composite balls represent a breakthrough in grinding media technology, combining alumina's hardness with zirconia's fracture toughness for exceptional impact resistance and wear performance.
- Increased Fracture Toughness: Superior resistance to impact loading compared to standard alumina materials
- Excellent Wear Resistance: Smooth microstructure provides 2-15 times better wear resistance than high alumina media
- Thermal Stability: Efficient heat dissipation for high-temperature applications
- Chemical Inertness: Resistant to acids, alkalis, and corrosive environments
| Composition | Al2O3 | SIO2 | CaO+MgO | Fe2O3 |
|---|---|---|---|---|
| Wt% | ≥92 | 7 max | ≤2 | ＜0.1 |
| Property | Value |
|---|---|
| Specific Gravity (g/cm3) | ≥3.65 |
| Bulk Density (kg/L) | ≥2.2 |
| Hardness (Moh's) | 9 |
| Water Absorption (%) | ＜0.01 |
| Self Wearing Loss % (24hrs) | ≤0.012 |
| Compression (Mpa) | ≥2000 |
| 0.5-1.0 | 6.0 | 20.0 | 70.0 |
| 1.0 | 8.0 | 25.0 | 80.0 |
| 2.0 | 10.0 | 30.0 | 90.0 |
| 3.0 | 13.0 | 40.0 | 100.0 |
| 4.0 | 15.0 | 50.0 | |
| 5.0 | 18.0 | 60.0 |
| Property | Alumina (92%) | Alumina (99%) | Zirconia | Steel | Silica Sand |
|---|---|---|---|---|---|
| Density (g/cm³) | 3.6 | 3.9 | 6.0 | 7.8 | 2.2 |
| Hardness (Mohs/HV) | 9 (~1,500 HV) | 9 (~1,800 HV) | 8.5 | 6-7 | 7 |
| Wear Rate (g/ton) | 10-50 | 5-20 | 1-5 | 100+ | 300+ |
| Compressive Strength | 2,000 MPa | 2,500 MPa | 2,200 MPa | 500 MPa | Low |
- 30% lower wear than standard 92% alumina grade
- 2-5x longer lifespan compared to steel in abrasive applications
- Superior hardness to zirconia for fine grinding applications
- Cost-effective alternative to pure zirconia media
- Mining & Mineral Processing: Improved grinding efficiency with reduced contamination
- Pharmaceuticals: FDA-compliant, no endotoxin release
- Battery Manufacturing: Prevents metal contamination in cathode materials
- Paints & Coatings: Maintains color purity with no metal leaching
- Medical & Aerospace: Biocompatible and thermally stable for demanding applications
Standard packaging includes 25KG woven bags, with 1000KG-1250KG per pallet shrink wrapped for secure transportation.
They are composed of aluminium oxide (Al₂O₃) reinforced with zirconia (ZrO₂), creating a high-performance ceramic material with enhanced toughness.
ZTA balls offer superior impact resistance, excellent wear properties, chemical stability, and thermal resistance up to 1600°C.
ZTA provides the optimal balance between cost and performance, offering zirconia-like toughness at a more economical price point.
We offer various sizes (1mm-100mm), zirconia content adjustments, and specialized grades to meet specific application requirements.
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