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Alumina ceramics is a ceramic material with Al2O3 as the main crystal phase. SENCERAMCS can produce ceramic products with an alumina content of 95% to 99.8%. The alumina has a compact structure, low activity, and high-temperature stability. The electrical properties are the best, with good mechanical properties, with a Mohs hardness of 9.
| Material | Alumina 96%, Alumina 99.5%, Alumina 99.8%, Alumina 99% |
|---|---|
| Tolerances | Up to +/-0.001mm |
| Forming | Dry-pressing, Isostatic-presssing, Extrusion and Casting, Injection-molding |
| Processing | CNC machining with fine grinding |
| Customization | Send us your drawing to get our best offers |
Alumina ceramics is a ceramic material with Al2O3 as the main crystal phase. SENCER PRECISON CERAMICS can produce ceramic products with an alumina content of 95% to 99.8%. The alumina has a compact structure, low activity, and high-temperature stability. The electrical properties are the best, with good mechanical properties, with a Mohs hardness of 9. Alumina ceramics have high mechanical strength, high volume resistivity, good electrical insulation properties, high lightness, and wear resistance. A series of anti-oxidation properties are widely used in structural parts and functional device ceramic parts, such as wear-resistant and corrosion-resistant parts used in the mechanical and chemical fields; crucibles, protective tubes, refractory materials used in the metallurgical industry; substrates, insulators, Porcelain parts for the electronics industry, such as radomes, microwave electrolytes, etc.
The advanced ceramics made by alumina 99% could be white or ivory, and different molding and sintering methods can be selected according to different uses of customers. The main pressing is usually Dry Pressing, Hot Pressing, Isostatic Pressing, and Injection Molding depends on the structure of the ceramic parts.
| Composite | (wt %) | 96% | 99% | 99.5% | 99.8% |
| Color | White | White or Ivory | White or Ivory | White or Ivory | |
| Density | g/cm3 | 3.7 | 3.82 | 3.9 | 3.92 |
| Hardness | HRA | 64 | 83 | 85 | 85 |
| Flexural Strength | Mpa(psi*103 ) | 356 | 375 | 386 | 381 |
| Gas Permeability | 0 | 0 | 0 | 0 | |
| Water Absorption | % | 0 | 0 | 0 | 0 |
| Thermal Shock Resistance | °C | 198 | 195 | 198 | 198 |
| Thermal Expansion | ×10-6/℃ | 8.2 | 8.2 | 8.2 | 8.2 |
| Dielectric Constant,20°C | 1MHz | 8.8 | 9.6 | 9.6 | 9.7 |
| Dielectric loss, tanδ | 1MHz | 2×1014 | 2×1014 | 1×1014 | 1×1014 |
| Volume Resistivity,20℃ | Ω·cm | ≥1014 | ≥1014 | ≥1014 | ≥1014 |
| Dielectric Strength,DC | Ω·cm | ＞10 | 20 | 20 | 20 |
| Compressive Strength | KV/mm | 2510 | 2510 | 2700 | 2600 |
| Fracture Toughness | MPa( psi * 103) | 310 | 350 | 350 | 350 |
| Poisson’s Ratio | MPa | 0.22 | 0.22 | 0.22 | 0.22 |
| Thermal conductivity | W/mK | 21 | 25.8 | 27 | 27 |
Alumina Ceramic Custom Parts
Material:
Available Color:
White or Ivory
Feature:
High-Heat Resistance, Insulation Performance.High Corrosion-Resistance, High Wear-Resistance
Size:
Size Customized, according to customer’s drawing, OEM. We can reach the best outside diameter to 1.0mm.
Application:
Unintentional and lapping ceramic parts, Industrial ceramic, Technical ceramic.Advanced ceramic.Fine ceramic.
Advantage:
Package:
Carton+Palletize,Carton,bubble paper inside,Wooden Box.Pls, let us know if you have any special requirements.
Producing Methods:
Dry pressing, Cylindrical grinding, and Centerless grinding.Lapping. Hot pressing. Isostatic pressing.
Tolerance:
Up to ±0.002mm, as customer’s drawing or OEM.
Surface:
Ultrasonic cleaning and dust-free packaging or according to customer’s requirements.
The time limit is very fast (usually will arrive in 5-7 days )and you do not need to pick up the goods by yourself.
Freight charge: higher.
The time limit is very fast (usually will arrive in 7-12 days) and you need to pick up the goods from the airport by yourself.
Freight charge: cheaper than air express.
The time limit is slow and you need to pick up the goods from the destination port by yourself.
Freight charge: cheapest.
We will contact you within 1 working day, please pay attention to the email with the suffix “@senceramics.com”.
