Alumina Advanced Engineering Ceramics / Special Technical Ceramic Parts
1. Description:
Alumina advanced engineering ceramics / special technical ceramic parts widely apply for many different fields.Whilst the details of high order ceramic systems become complex remarkably quickly, and the content we've discussed here certainly sits outside of the scope of this course, we hope that this view into some advanced ceramics has broadened your understanding a little. Not all ceramics are thermal/electrical insulators, and not all ceramics are insurmountably brittle - the world is broader than Alumina and Tungsten Carbide. You'll talk a little more about advanced ceramics in Engineering Materials 2.
1) High hardness and high density
2) Low thermal conductivity
3) Chemical inertness
4) Good wear resistance
5) High Fracture toughness
6) Good insulation performance
7) High temperature resistance
8) A variety of specifications is available
9) Satisfy various technical requests
10) Lower medium spoilage
11) Stiffness texture
12) Chemical inertness
13) Good wear resistance
14) High Fracture toughness
15) Good insulation performance
3. Material Features / Properties:
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!