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 an essential pillar in manufacturing. Here the credo is “better to play it safe”, especially since it is a frequent customer request. Many factors, such as shaping up to sintering, must be kept in mind at the same time.

We offer a portfolio of chemical and physical tests of technical ceramics 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 Link Hardness or Link Strength Analysis. A 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 the orientation of industrial quality control?

For this purpose, relevant national and international standards or approaches, such as ISO 9001, Lean 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, the WZR sets strict scientific criteria to ensure an independent and objective view. Thus, the procedure can hardly be generalized, since the specific individual case is our rule. A procedure will be discussed individually with our clients. Thus, errors can be detected at an early stage and the manufacturing process can be continuously improved (KVP = continuous improvement process).

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 finished products are very high. Of great importance is already the monitoring of the raw materials used, their preparation as powder mass by grinding, mixing, spray-drying and addition of additives. The subsequent shaping takes place by casting, pressing, extrusion or mechanical processing. The final step is often sintering, where the focus is on creating a defined link REM/EDX 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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