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DataPhysics Instruments GmbH



Applikationsbericht [EN]: Measuring on wettable and non-wettable powders

The wetting properties of powders have attracted increasing attention, because they are essential parameters in various application fields, like ceramics, clays, pharmaceutical products, and cosmetics. Ferrosilicon powder, for example, is used to produce steel as well as silicon for solar panels and computer chips. The Washburn method is one of the most commonly used methods to analyse the wetting behaviour of powders with a liquid. However, this method is limited to hydrophilic samples. Using the optical contact angle meter from DataPhysics Instruments, the wetting behaviour of hydrophobic, or non-wettable, powders can also be analysed. In this application note, the wetting behaviour of wettable and non-wettable powders were studied using the example of FeSi powders.

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