CNC Machinning Customized Industry Ceramic 99% Alumina Component
1. Description:
Alumina is produced by firing a tightly packed powder form of Al2O3 which includes some binder material. Commercially available grades range from 90% up to 99.95% with the higher purity generating somewhat higher hardness. It is possible to machine alumina using diamond grinding techniques. Polishing is also possible, with the degree attainable affected by alumina grain size and production technique, whether pressed or extruded.
2. Feature Advantages:
1) High hardness and high density
2) Low thermal conductivity
3) Chemical inertness
4) Good wear resistance
5) High Fracture toughness
6) High welding sealing performance
3. Material Features / Properties:
| Composite | (wt %) | 99% | 99.5% | 99.8% |
| Color | | White or Ivory | White or Ivory | White or Ivory |
| Density | g/cm 3 | 3.82 | 3.9 | 3.92 |
| Hardness | HRA | 83 | 85 | 85 |
| Flexural Strength | Mpa (psi*10 3 ) | 375 | 386 | 381 |
4. Technical Parameters:
| Technical Parameters of Ceramics |
| Items | Test Conditions | Unit or Symbol | 99% AL2O3 | 95% AL2O3 | 90% AL2O3 | Zirconia | Steatite | Silicon Carbide |
| Volume Density | -- | g/cm3 | ≥3.70 | ≥3.62 | ≥3.40 | ≥5.90 | ≥2.60 | ≥3.08 |
| Tightness | -- | Pa·m³/s | ≤1.0×10-11 | ≤1.0×10-11 | ≤1.0×10-11 | - | - | - |
| Liquid Permeability | -- | -- | Pass | Pass | Pass | | Pass | - |
| Flexural Strength | - | MPa | ≥300 | ≥280 | ≥230 | ≥1100 | ≥120 | ≥400 |
| Elastic Modulus | - | GPa | - | ≥280 | ≥250 | ≥220 | - | 400 |
| Poisson Ratio | - | - | - | 0.20～0.25 | 0.20～0.25 | - | - | - |
| Thermal Shock Resistance | 800℃( Room Temperature) Cycle: 10 times | | Pass | Pass | Pass | - | - | - |
| Coefficient of Linear Expansion | 20℃～100℃ | ×10-6 K-1 | - | - | - | | ≤8 | - |
| 20℃～500℃ | ×10-6 K-1 | 6.5～7.5 | 6.5～7.5 | 6.5～7.5 | 6.5～11.2 | - | - |
| 20℃～800℃ | ×10-6 K-1 | 6.5～8.0 | 6.5～8.0 | 6.3～7.3 | | - | 4 |
| 20℃～1200℃ | ×10-6 K-1 | - | 7.0～8.5 | - | - | - | - |
| Coefficient of Thermal Conductivity | 20℃ | W/(m·k) | - | - | - | - | - | 90～110 |
| 1000℃ |
| Dielectric Constant | 1MHz 20℃ | - | 9.0～10.5 | 9.0～10 | 9.0～10 | - | ≤7.5 | - |
| 1MHz 50℃ | - | - | 9.0～10 | - | - | - | - |
| 10GHz 20℃ | - | 9.0～10.5 | 9.0～10 | 9.0～10 | - | - | - |
| Volume Resistivity | 100℃ | Ω·cm | ≥1.0×1013 | ≥1.0×1013 | ≥1.0×1013 | - | ≥1.0×1012 | - |
| 300℃ | ≥1.0×1013 | ≥1.0×1010 | ≥1.0×1013 | - | - | - |
| 500℃ | ≥1.0×109 | ≥1.0×108 | -- | - | - | - |
| Disruptive Strength | D.C | kV/mm | ≥17 | ≥15 | ≥15 | - | ≥20 | - |
| Chemical Durability | 1:9HCl | mg/c㎡ | ≤0.7 | ≤7.0 | - | - | - | - |
| 10%NaOH | mg/c㎡ | ≤0.1 | ≤0.2 | - | -- | - | - |
| Grain Size | - | μm | - | 3~12 | - | - | - | - |
5. Process Flows:
Formulating --- Granulating --- Forming --- Sintering --- Grinding --- Printing --- Nickel Plating --- Assembing --- Brazing --- Inspecting --- Packing
6. Application Fields:
Widely apply for new energy vehicles, charging piles, solar power generation, energy storage and power storage system, electric vehicle power system and so on.
7. Production Facilities: Prilling Tower , Forming Machine , High Temperature Sintering Kiln
8. Detection Devices:
Electric Performance Tester , Film Thickness Analyzer , Granulometer , Helium Mass Spectrometer Leak Detector , Universal Pull Force Meter
9. Order Flow Steps as belows: Inquiry ---Quotation --- Place an order --- Production --- Delivery
10. Our advantages: Quality Assurance ; Price Competitive ; Factory Supply Directly ; Good Service
11.Shipping and Package:
12. Our aimed market :
Notes:Above information only for reference and please contact with us for more details freely when you have any inquiry!
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CNC Machinning Industry Custom Ceramic Parts 99% Alumina Images
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