|
[China]
Trade Verify
Address: Dagang Village,Dingshu Town, Yixing City,Jiangsu Province, China
Contact name:Bruce
Yixing City Kam Tai Refractories Co.,ltd |
|
Verified Suppliers
|
|
|
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:
| 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.
