Alumina Ceramics (Al2O3)
Alumina ceramic is a ceramic material with alumina (Al2O3) as the main body for thick film integrated circuits. Alumina ceramics have good conductivity, mechanical strength and high temperature resistance.
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Alumina Ceramics Description
Alumina ceramics can be divided into several application grades according to their alumina content, of which 99% alumina porcelain materials are used to make high-temperature crucibles, refractory furnace tubes, and special wear-resistant materials, such as ceramic bearings, ceramic seals, and water valve pieces; 95%-96% alumina porcelain is mainly used as corrosion-resistant, wear-resistant components, and circuit substrates.
Alumina Ceramics Properties
- Excellent electrical insulation (1 x 10 14 to 1 x 10 15 Ω cm).
- Medium to ultra-high mechanical strength (300 to 630 MPa).
- Very high compressive strength (2000 to 4000 MPa).
- High hardness (15 to 19 GPA).
- Medium thermal conductivity (20 to 30 W / MK).
- high corrosion and wear resistance.
- good abrasive properties.
- low density (3.75 to 3.95 g / cm3).
- Operating temperatures of 1000 to 1500°C without mechanical load.
- Bioinertia, food compatibility.