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News about technical ceramics

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For whom are microstructural investigations interesting?

The microstructure of a material is one of the most important parameters – if not THE most important – to be used to assess the quality of a newly developed material or component. Therefore, information about the microstructure can be obtained by porosity measurements or strength tests, since these properties are greatly influenced by the microstructure. Directly, the microstructure of e.g. technical ceramics can be studied using a wide range of methods that have been available to industry and the end-user market since the last century to complement conventional optical microscopy.

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Material development at WZR

Development, use and monitoring of new materials: Our customers’ daily challenges are also ours. To this end, we would like to provide an insight into our thinking and approach today.

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Thermal Barrier Coatings (TBC) for more than 650°C

The newly developed high temperature resistant coatings are now called CerCoat®-HT. The basis is a ceramic suspension that enables adhesion to metallic substrates with special binders. A temperature-resistant bonding is achieved by a heat treating process between 500°C and 650°C, which ensures the subsequent application temperature up to at least 650°C.

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Im Dilatometer eingespannte Probe

How to avoid stresses in your component?

Have you ever had the problem that a metal door just wouldn’t close in the summer, and in the winter cold air came through gaps even more so?

Maybe not, but you’ve certainly had a glass shatter because you poured water inside that was too hot.

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Weiterentwicklung des Vakuumheißgießens

Further development of vacuum hotcasting

Vacuum hot casting is used at WZR to produce first parts of series character quickly and cost-effectively. A major improvement has now been achieved in the preparation of the hot casting feedstock: WZR has now succeeded in both extremely homogeneous and abrasion-free production. The ceramic components produced in this way are characterised by an undyed surface, very low porosity and high bending strength.

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XRF vs. XRD of ceramics

WZR FAQ:
“Why do you recommend X-ray diffraction analysis and not X-ray fluorescence analysis -as you did on our last job?”
Or
“Why should I do both? It gives me the same result, after all.”

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25 years WZR ceramic solutions GmbH

For our birthday celebration we held a symposium where we were able to show the whole range of ceramics at WZR. From energy technology to refractories to dental ceramics, from structural ceramics to membrane reactors to an overview lecture 25 years of WZR.

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