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High-performance oxide ceramics

 

Definition and differentiation: High-performance oxide ceramics belong to the group of engineering ceramics and differ fundamentally from conventional utility ceramics, such as those used in household goods or sanitary facilities. While utility ceramics primarily serve decorative and hygienic-functional purposes, engineering ceramics are characterised by tailor-made physical, chemical, electrical and mechanical properties.

Properties and applications. High-performance oxide ceramics offer an exceptional combination of:

  • Wear resistance,
  • Electrical insulation
  • Suitability for use as semiconductors or for
  • piezoelectric effects
  • Thermal stability
  • Optical transparency (e.g. for bulletproof glass)
  • Metallurgical properties, such as ductility in composite systems
  • chemical resistance to aggressive media
  • These material properties make them ideal for demanding applications in the following areas: semiconductor technology,
    • medical technology,
    • aerospace
    • and chemical and mechanical engineering.
    • The extraction and processing of high-performance oxide ceramics is expensive and resource-intensive.

The extraction and processing of high-performance oxide ceramics is expensive and resource-intensive. The starting point is the mining of suitable minerals, followed by repetitive refinement steps such as comminution, calcination, wet chemical cleaning and thermal post-treatment. The aim is to obtain a high-purity, reproducible and finely dispersed homogeneous ceramic.

The importance of homogeneity: A key success factor in the process chain is the homogeneity of the starting materials. The more uniform the particle distribution, the better the formability, sinterability and ultimately the quality of the end product. A high degree of homogeneity also simplifies process control and increases yield.

 

 

Efficient mixing technology with Gyraton® mixers:

Gyraton mixers from amixon® make a decisive contribution to achieving this homogeneity. These high-performance mixers are capable of homogenising large quantities of bulk materials of up to 100 m³ with a mixing quality variation coefficient of less than 5%. Gyraton mixers are suitable for both discontinuous and continuous mixing processes and are characterised by the following features:

  • Gentle mixing at extremely low speeds
  • Low energy consumption thanks to reduced connected load
  • High cost-effectiveness through efficiency and process reliability.