Calcia Stabilized Zirconia grain (CSZ) for shaped refractories
Calcia-Stabilized Zirconia grain is a superior raw material for zirconium base shaped refractories. It is a type of fused zirconia that has been chemically stabilized with calcium oxide (CaO). Calcia stabilized zirconia can maintain its cubic crystal structure at high temperature. Thus the thermal performance is better especially with high anti-corrosion, and thermal shock resistance. It can avoid the shaped refractories cracking.
Properties:
- High melting point (~2700°C).
- Good thermal shock resistance.
- Moderate ionic conductivity.
- Chemical inertness & corrosion resistance.
- High cost effective compared to Yttrium stabilized zirconia.
Chemical composition of Calcia Stabilized Zirconia(%)：
| Item | Bubble | 3% CSZ Grain | 7% CSZ Grain |
| ZrO2 | Min. 95 | Min. 94 | Min. 91 |
| CaO | 3.0-4.0 | 3.0-4.5 | 7.0-7.8 |
| SiO2 | Max.0.30 | Max.0.40 | Max.0.40 |
| Al2O3 | Max.0.20 | Max.0.20 | Max.0.20 |
| Fe2O3 | Max.0.05 | Max.0.10 | Max.0.10 |
| TiO2 | Max.0.20 | Max.0.20 | Max.0.20 |
- Customized bubble & grain & powder are available upon request.
Physical properties of Calcia Stabilized Zirconia：
| Specific Gravity | 5.6-5.9 g/cm3 |
| Melting point | 2700 degree |
| Hardness | Vickers 12.5 GPA |
| Stabilization Rate | 70-95% |
Specification:
| Bubble | 0-1mm,1-3mm,3-5mm,5-8mm,1-5mm,etc. |
| Grain & Powder | 60mesh,80mesh,150mesh,200mesh,325mesh,800mesh, 1000mesh,1500mesh,2000mesh,2500mesh,3000mesh,4000mesh, 6000mesh,8000mesh,etc. |
Calcia Stabilized Zirconia Application：
- Fixed diameter nozzle plug, sliding gate, immersion water plug in steel making furnace.
- Zirconia base lightweight fire bricks and shaped refractories.
- High quality kiln furniture.
- Electronic ceramics such as setter plates and saggers.
- Abrasive industry and wear resistance additives such as auto brake lining.
Package:
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