Refractory metals (Latin: refractarius = recalcitrant) are high-melting metals that, on the one hand, are extremely difficult to process in technical procedures. On the other hand, they offer many material properties that make them interesting for demanding application environments, e.g. high corrosion resistance and conductivity as well as low thermal expansion. They are extremely high-performance coating materials that are of great importance for the electronics industry, among others. Displays such as televisions are coated with them. Other applications are used in aerospace technology. One focus at the Tridelta Campus is the application of refractory metals in medical technology, especially for components used in X-ray diagnostic and therapy devices.