China Factory High Aluminum Wholesale Customized Ceramic Rod 99% Macor Machinable Ceramic Rod, Find details about China Alumina Ceramic Rod, Ceramic Rod Alumina from China Factory High Aluminum Wholesale Customized Ceramic Rod 99% Macor Machinable Ceramic Rod
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.High Temperature Ability - Alumina can be used in both oxidizing and reducing.atmospheres up.to 1650°C (2900°F)
and in vacuum environments up to 2000°C (3600°F).
Abrasion Resistant - Alumina is a very hard ceramic and is excellent at resisting abrasion.It is ideal for wear-resistant inserts
or products.Electrical Insulator Alumina is commonly used as a high. temperature.electrical insulator, particularly the higher
purity grades which offer better.resistivity. Chemical.Resistance.Alumina offers good resistance to strong acids and alkalis
at elevated, temperatures and is ideal for applications where resistance to corrosive substances is required
| ITEM | UNIT | Alumina | A950 | Alumina | A990 |
| Main Content | - | 95% Al2O3 | 99% Al2O3 |
| Color | - | White / Pink | Ivory |
| Density | g/cm3 | 3.7 | 3.85 |
| Vickers Hardness | Gpa | 14 | 17 |
| Flexural Strength | Mpa | 310 | 360 |
| Compressive Strength | Mpa | 2,200 | 2,500 |
| Electrical Resistivity | Ω·cm | >1014 | >1014 |
| Dielectric Strength | KV/mm | 15 | 17 |
| Dielectric Constant | 1 MHz | 8 | 9 |
| Thermal Conductivity | W/m.K | 25 | 29 |
| Max. Working Temperature | ºC / °F | 1,500 / 2,730 | 1,650 / 3,000 |
| Resistance to Thermal Shock | △T(ºC) | 210 | 230 |
| Thermal Expansion Coefficient | 10-6/K | 7 - 9 | 7 - 9 |