Good chemical stability and high corrosion resistance alumina ceramic eyelets
1.Description
Alumina ceramic is a kind of structural ceramics, with insulation resistance, voltage resistance, high strength, good thermal conductivity, dielectric loss, stable electrical performance characteristics. Used in electronic ceramic substrates, ceramic electrical insulation, vacuum devices, devices porcelain, spark plugs and other products.
2.Feature:
- A variety of specifications available
- Satisfy various technical request
- Lower medium spoilage
- Good insulation performance and high temperature resistance
- Stiffness texture
- Used in all electric products, electric heating products and wear resistant machinery parts
3.Technical Data
| Alumina Ceramic Performance |
| Item | | Unit | 95 Al2O3 | 96 Al2O3 | 99 Al2O3 |
| Physical Characteristics | Heat resistance | ℃ | 1500 | 1550 | 1800 |
| Bulk dnsity | g/cm³ | 3.6 | 3.6 | 3.9 |
| Water absorption | % | 0 | 0 | 0 |
| Mechanical Characteristics | Flexural strength | Mpa | 320 | 340 | 360 |
| Hardness vickers | Gpa | 12.2 | 13.5 | 15.6 |
| Elastic mdulus | Gpa | 280 | 320 | 370 |
| Poisson'radio | | 0.22 | 0.23 | 0.23 |
| Thermal Characteristics | Linear expansion coeffcient | (20-500℃)10^-6/℃ | 7.1 | 7.2 | 8 |
| Thermal conductivity | w/(m.k) | 16 | 24 | 32 |
| Specific heat | *10^-3(kg*K) | 0.78 | 0.78 | 0.9 |
| Electrical Characteristic | Dielectric constant(1MHZ) | - | 9 | 9.4 | 9.9 |
| | Dielectric loss angle | *10^-4 | 15 | 5 | 1 |
| | Dielectric strength | *10^6V/m | 12 | 15 | 15 |
We can supply the products according to customer's drawings, samples and performance requirement.
Quality assurance:
1. High heat resistance : Alumina ceramic has excellent thermal stability,which means that it is widely used in areas where resistance to high temperatures is essential.
2. Good wear resistance : Alumina ceramic is the material of choice for alumina wear parts.
3. High corrosion resistance : It is insoluble in water and only slightly soluble in strong acid and alkaline solutions. Good chemical stability of alumina leads to high corrosion resistance.
