Quality control of technical ceramics


Why should you pursue quality assurance of ceramic components and high-performance ceramics?

The assurance and control of the quality of industrially manufactured products, especially ceramic components, is the backbone in manufacturing. Here the credo is “to play it safe”, especially since it is a frequent customer request. Many factors, such as shaping or sintering, must be kept in mind at the same time.

We offer a portfolio of chemical and physical tests of technical ceramics or metals to accompany the individual steps of production and to characterize the status quo. This includes non-destructive testing, such as natural frequency measurement or microscopy, as well as destructive testing methods such as Hardness or Strength. The knowledge of the processes is therefore an advantage in order to be able to make an exact assessment. Only a complete view of the process, including all sub-components and their influence on each other, provides a complete insight.


What is industrial quality control based on?

For this purpose, relevant national and international standards or approaches, such as ISO 9001, Six Sigma or GMP (Good manufacturing practice) are available, which offer a broad field of activity. These provide a general and rough overview, but an automated process is much more complex and often not completed in a single step. Therefore, WZR applies strict scientific criteria to ensure an independent and objective view. Thus, the procedure can hardly be generalized, since the specific particular case is our standard. A procedure will be discussed individually with our clients. Errors can be detected at an early stage and the manufacturing process can be continuously improved (CIP = continual improvement process) one of the key points in all these quality assurance systems.

Influencing factors

Which influencing factors are there for the production and what do they mean for the quality control of ceramic components?

Due to the complexity and the price, the expectations of the ceramic products are very high. Already the monitoring of the raw materials used, their preparation as powder by grinding, mixing, spray-drying and addition of additives is of great significance for the whole process. The subsequent shaping takes place by casting, pressing, extrusion or mechanical processing. The final step is sintering, where the focus is on creating a defined microstructure depending on temperature and atmosphere. All this leads to end products with defined shapes, strengths under various conditions, porosities and chemical resistances.

Contact person

Martin Witscher
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