New equipment at WZR

Anyone who visited us at the ” Keramik+” conference or at a later date will already have seen it: Our latest 3D printer. The CeraFab S65 from Lithoz uses the VPP process, in which a resin filled with particles is cured by light and which also enables the printing of very filigree structures. We have compiled more information on the VPP process here.

On the printer, we will carry out part of the development work for our project Redox3D, which is publicly funded (Bundesministerium für Wirtschaft und Klimaschutz BMWK).

But what would the development of ceramics be without the accompanying analysis of the material?

In addition to strength testing and characterization using scanning electron microscopy, thermal analysis of the material is also important. For this reason, we have now invested in a second dilatometer to determine the thermal expansion. Especially in terms of time, this purchase is a great advantage for us, because most dilatometer measurements take more than 7 hours, so that usually only one sample can be measured per day. Now we can perform the measurements with both devices at the same time. In addition, with the connection for manual gas control, we can specifically simulate the application environment or simulate sintering under inert gas.

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How to VPP?

2023 has been an eventful year at WZR ceramic solutions – mainly because of the new 3d printer. With the CeraFab S65 (VPP-printer) from Lithoz we got a new AM method in our house, whose potential is used to the fullest for our public funded project Redox3D.

Porous ceramics and how to use them right

Besides the determination of strength, the determination of open porosity and bulk density is the most common analysis we perform in-house – and also one of the simplest. Nevertheless, it is one of the most important test methods for characterising a sample (sometimes even non-destructively). This is because conclusions about other physical properties can be drawn directly from the open porosity.

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