Alumina Ceramics – find manufacturers and suppliers

The material alumina ceramic  

The high-quality production material is based on the aluminium ore bauxite and is split into aluminium hydroxide by caustic soda. Aluminium oxide is the result of subsequent calcination and very labour-intensive grinding processes.

Technical features

The application possibilities of technical ceramic products are enormous due to their wide range of properties.

The versatility of this high-quality material is based on the following characteristics:

• Heat resistance above 1000 °C,
• low density,
• high dielectric constants with high volume capacitance,
• electrical insulation,
• high mechanical strength,
• Corrosion resistance,
• Abrasion and wear resistance,
• great hardship,
• low or high thermal conductivity, depending on type,
• low thermal expansion,
• Dimensional stability,
• depending on type, high electrical insulating capacity and ferroelectric properties.

The only disadvantage is the low fracture toughness. Aluminium oxide differs from other ceramics in its good thermal conductivity and its different degrees of purity. Alumina ceramics is therefore the most frequently used high-performance material. In addition, alumina is corrosion resistant, very hard and has excellent dielectric strength. Alumina ceramic is therefore often used as an insulating material. This material can be easily modified as desired. This also makes it so valuable for use in system solutions with regard to assemblies.

Areas of application

Depending on the type, this high-quality material is used in welding technology, machine or plant construction, testing technology, forming technology, the electrical industry, mechatronics, medical technology, the chemical, paper, pump and textile industries, as well as in food processing, jig construction, automotive and supplier companies.