Custom-made wear-resistant insulating ceramics with special shapes of alumina
Product Overview
Alumina ceramics have many excellent properties, so they are widely used in the world. Alumina ceramics have a Vickers hardness of 15GPa, a density of about 3.75g/cm3, a compressive strength of about 2100MPa, a flexural strength of 300Mpa, a volume resistance of 1014Ω·m, an expansion coefficient similar to that of metals, and good chemical stability.
High-frequency insulating ceramics, also known as device ceramics, are used in electronic equipment to install, fix, and protect components, as insulating supports for current-carrying conductors, and as ceramics for various integrated circuit substrates. Small dielectric constant, low dielectric loss, high mechanical strength, and high dielectric strength, insulation resistance and thermal conductivity. Commonly used high-frequency insulating ceramics include high-alumina porcelain and talc porcelain.
Product parameter table
| Material
Project | Alumina AL203 | Silicon carbide sic | Silicon nitride sin | Silicon nitride sin |
| Color | Ivory | black | black | Milky white, gray black |
| Content(%) | 99.5 | …… | …… | …… |
| Main features | - Excellent high frequency electrical insulation
-
Good wear resistance -
preservative -
Strong -
High hardness | - Good high temperature strength
- High thermal conductivity
- Strong alkali resistance
- Wear-resistant
- Lightweight
| - Good high temperature strength
- Strong impact resistance
- Strong corrosion resistance
- Lightweight
| - High strength and high impact resistance
- Good self-lubricating
- Strong alkali resistance
- Smooth surface
- Good toughness
|
| The main purpose | - Wear parts
- High temperature parts
- Corrosion resistant parts
| - Machinery Seal
- Sliding parts
- High temperature parts
| - Molten metal parts
- Metal plasticity
- Processed parts
| - Industrial knives
- Pump parts
- Wear parts
|
| Density | Kg/m³ | 3.9*10 | 3.16*10 | 3.3*10 | 6.0*10 |
| Mechanical behavior | Vickers hardness | Gpa | 16.0 | 23.0 | 14.0 | 13.2 | 12.7 |
| Flexural strength | Mpa | 360 | 450 | 1020 | 1000 | 1470 |
| Compressive strength | Mpa | 2350 | …… | …… | …… | …… |
| Fracture toughness | Mpa | 4 | 2-3 | 7 | 4-5 | 4-5 |
| Thermal performance | Linear expansion coefficient | 40-400℃ | ×10-5/℃ | 7.2 | 3.7 | 2.8 | 10.5 | 10.8 |
| 40-800℃ | 8.0 | 4.4 | 3.3 | 11.0 | 11.3 |
| Thermal conductivity | W/(m·k) | 32 | 200 | 27 | 3 | 3 |
| Specific heat | J/(kg·k) | 0.78*10 | 0.67*10 | 0.65*10 | 0.46*10 | 0.46*10 |
| Thermal shock resistance (in water) | ℃ | 250 | …… | ＞800 | 300 | 350 |
| Electrical performance | Dielectric strength | V/m | 15*105 | …… | 13*105 | 11*105 | …… |
| Volume resistance(20℃) | Ω·cm | ＞1014 | 108 | 1014 | 1013 | …… |
| Dielectric constant | …… | 9.6 | …… | 9.9 | 33 | …… |
| Loss factor | ×10-4 | 10 | …… | …… | 520 | …… |
Product advantages
• Size and thermal stability
• High performance features
• Hydrolysis resistance
• Self-lubricating performance
• Extended service life
Alumina ceramic material has good insulation, otherwise, stainless, strong and not easy to damage, and has the same excellent properties as other organic materials and metal materials. The production process of alumina ceramics includes five steps: calcination, batching, fine grinding, shaping and sintering.
Applications
- Shipbuilding, bridges, large-scale structural facilities
- Lighting industry
- Electronics and electric heating industry
With the development of science and technology and the improvement of manufacturing technology, new varieties continue to appear, and they will be used more and more in the fields of modern industry and modern science.
Product Picture
Product packaging
Packed in carton
FAQ
1. Are you a businessman or a manufacturer?
We are a company, we have our own factory
2. How long is your delivery time?
Negotiable
3. Can the product be customized?
Can be customized
4. What is the product packaging?
Carton or according to customer requirements
Product Tags:
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Customised Shaped 10Gpa Wear Resistant Ceramics Images
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