Ceramic materials

Ceramic materials are used because of their high hardness, wear resistance, chemical resistance and heat-insulating properties. The two main categories for the application of ceramic coatings:

Ceramic material for wear-resistant coatings

The materials for wear-resistant coatings can be divided into chromium oxide (Cr2O3), aluminium oxide (Al2O3) and titanium oxide (TiO2). Ceramic coatings are characterized by low frictional resistance and are therefore very suitable as a running surface for seals such as O-rings and seals. These materials are also very suitable as a tread for mechanical seals.

Ceramic material for thermal and electrically insulating
coatings

For jet and combustion engines, heat-insulating coatings must protect components against high process temperatures. Zirconium oxide (ZrO2) and Yttrium oxide (Y2O3) are used as a coating for high-temperature applications. In addition to this coating on parts in jet and combustion engines, the coating is also used in the steel industry for extrusion moulds and as a protective coating on thermo-wells (inserting temperature). Another application of aluminium oxide (Al2O3) is forming an electrically insulating layer on the shells of (roller) bearings. These coatings are often used in ATEX environments. Bearings can generate static electricity and be an explosion hazard in certain environments.

Another application of aluminium oxide (Al2O3) is forming an electrically insulating layer on the shells of (roller) bearings. These coatings are often used in ATEX environments. Bearings can generate static electricity and be an explosion hazard in certain environments.

Examples

• Axle bushes / Wear bushes
• Mechanical seals
• Pump shafts
• Low-friction bearings
• Plungers / Piston Rods
• Rolling textille thread 
• Thermowells
• Electrical insulation on bearings
• Agitators