ST.CERA Customized 99.5% Alumina Ceramic parts
Product Details
With features of high temperature resistance, corrosion resistance, abrasion resistance and insulation, ceramic can work in many kinds of semiconductor production equipment with condition of high temperature, vacuum or corrosive gas for a long time.
Made from high-purity alumina powder, processed by cold isostatic pressing, high temperature sintering and precision finishing, it could reach the dimension tolerance to ±0.001 mm, surface finish Ra 0.1, temperature resistance 1600℃.
Here is the characteristics of alumina ceramic with different purity.
product parameters
ST.CERA CO., LTD.
Material Data Sheet
| Properties | Unit | Alumina (Al2O3) | |||
| 99% Al2O3 | 99.5% Al2O3 | 99.8% Al2O3 | 99.9% Al2O3 | ||
| Color | — | White | Ivory | Ivory | Ivory |
| Density | g/cm3 | 3.88 | 3.90 | 3.93 | 3.95 |
| Water Absorption | % | 0 | 0 | 0 | 0 |
| Grain Size | μm | 2~5 | 2~5 | 2~5 | 2~4 |
| Flexural Strength | MPa | 350 | 360 | 361 | 350 |
| Fracture Toughness | MPa·m1/2 | 3~4 | 3~4 | 3~4 | 3~4 |
| Vickers Hardness | GPa | 14 | 15.5 | 16 | 16 |
| Young' s Elastic Modulus | GPa | 370 | 370 | 380 | 390 |
| Thermal Conductivity | W/m·k | 28 | 32 | 32 | 34 |
| Thermal Expansion Coefficient | 10-6/℃ | 7.2 | 7.2 | 7.2 | 7.2 |
| Dielectric Constant | — | 9.5 | 9.6 | 9.6 | 9.9 |
| Dielectric Loss Angle | — | 0.0001 | 0.0001 | 0.0001 | 0.0001 |
| Dielectric Strength | V/m | 15×106 | 15×106 | 15×106 | 15×106 |
| Specific Resistance | Ω ·mm2/m | ﹥ 1014 | ﹥ 1014 | ﹥ 1014 | ﹥ 1014 |
Production process
Spray Granulation → Ceramic Powder → Forming → Blank Sintering → Rough grinding → CNC Machining → Fine Grinding → Dimension Inspection → Cleaning Packing
Essential details
Place of Origin: Hunan, China
Material: Alumina Ceramic
HS Code: 85471000
Supply Ability: 200 pcs per month
Lead time: 3-4 weeks
Package: Corrugated box, foam, carton
Others: Customization service available
