290 Flexural Strength 95% Alumina Ceramics Material Spacer Sealing Ring
Product Specifications
Attribute | Value |
Material | 95% Alumina Ceramics |
Color | White |
Density | 3.6g/cm³ |
Flexural Strength | 290 Mpa |
OEM/ODM | Acceptable |
Origin | WUXI JIANGSU CHINA |
MOQ | 100 PCS |
Package | Carton |
Product Description
Alumina ceramic, or aluminum oxide (Al2O3), is an industrial ceramic material known for its exceptional hardness, wear resistance, and durability. These properties make it suitable for applications requiring diamond grinding for shaping. Alumina ceramics are manufactured from either white granular material or a fine silky dense powder refined from bauxite.
Material Properties Comparison
Material | Unit | A95% Alumina Ceramics | A97% Alumina Ceramics | A99% Alumina Ceramics | A99.7% Alumina Ceramics |
Density | g/cm³ | 3.6 | 3.72 | 3.85 | 3.85 |
Flexural Strength | Mpa | 290 | 300 | 350 | 350 |
Compressive Strength | Mpa | 3300 | 3400 | 3600 | 3600 |
Modulus of Elasticity | Gpa | 340 | 350 | 380 | 380 |
Impact Resistance | MPam1/2 | 3.9 | 4 | 5 | 5 |
Weibull Modulus | M | 10 | 10 | 11 | 11 |
Vickers Hardness | HV0.5 | 1800 | 1850 | 1900 | 1900 |
Thermal Expansion Coefficient | 10-6K-1 | 5.0-8.3 | 5.0-8.3 | 5.4-8.3 | 5.4-8.3 |
Thermal Conductivity | W/Mk | 23 | 24 | 27 | 27 |
Thermal Shock Resistance | △T℃ | 250 | 250 | 270 | 270 |
Maximum Use Temperature | ℃ | 1600 | 1600 | 1650 | 1650 |
Volume Resistivity at 20℃ | Ω | ≥1014 | ≥1014 | ≥1014 | ≥1014 |
Dielectric Strength | KV/mm | 20 | 20 | 25 | 25 |
Dielectric Constant | εr | 10 | 10 | 10 | 10 |