W. Tillmann, E. Vogli, I. Baumann, Dortmund University, Dortmund, Germany
Modern hybrid glass-steel structures have significantly influenced the development in civil engineering and architecture. Constructions based on this kind of composition provide new possibilities in building and facade design such as Structural Glazing. Force-fit and form-fit joints as well as adhesive bonds are commonly employed to generate the composition of steel and heat strengthened (TVG) or tempered (ESG) glass. Although numerous joining techniques have been established successfully, there is an increasing demand for alternatives which are more cost-efficient and provide higher strength. In this research work the soldering of glass-steel-hybrid structures using thermally sprayed copper, zinc and ceramic coatings have been investigated. In addition a comparison with metallic arc-PVD deposited coatings has been performed. A key issue was to produce dense coatings with good adhesion characteristics on the glass substrate. Simultaneously, a corresponding soldering process has been developed to obtain high joint stability and low thermal stress.
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