What are the uses of ceramics

Technical ceramics: properties, application

What is Technical ceramics?

Technical ceramics are highly specialized ceramic materials whose properties are designed for technical applications. Since the properties of the materials can be influenced very differently, it is used in many areas of application.

Synonym (s): high-performance ceramics, industrial ceramics, engineering ceramics

Compared to ordinary ceramics, which are used for decorative purposes or tableware, high-performance ceramics are subject to certain qualitative requirements, which means that some material properties differ from those in general. These special ceramic materials can be used to create high-performance components for industry.

It is made from ceramic powder, an organic binder and liquid. The materials are shaped under heat after the individual components have been mixed. This process is called sintering. Important in the manufacturing processes are z. B. the shape, the firing process, the processing temperature and the grain size. By changing the points mentioned, different material properties can be created from the same mixture of substances. But the ceramic molded parts only get their special features during the sintering process.

Products and applications based on technical ceramics from CeramTec

Areas of application

Due to the many advantageous material characteristics, components made of technical ceramics are used in a wide range of fields of activity. Also includes:

High-performance ceramics are sometimes used as a substitute for metal. This type of ceramic material is used primarily in bearing and sealing technology. The components include z. B. Pipes, seals, heat sinks, tools, connectors, plugs and bushings.

Materials

The base materials include oxides such as zirconium oxide, magnesium oxide, aluminum oxide, silicates such as alkali aluminum silicates and non-oxides such as nitrides.

properties

Depending on the production, different material properties can be achieved, which bring different advantages.

  • Low-wear components with service lives
  • Electrically neutral
  • Dimensionally stable
  • Chemical resistance
  • Mechanic solidity
  • High hardness
  • Heat resistance
  • low or high thermal conductivity (depending on the material)
  • Low expansion coefficient

Important manufacturers of technical ceramics

CeramTec, Doceram, Barat Ceramics, FRIATEC

Sembach uses the three mold environment methods dry pressing, extrusion and ceramic injection molding.

Zell Quarzglas: In addition to quartz glass and technical glass, Zell Quarzglas also produces oxide ceramics.