Advances in powder bed based Additive Manufacturing of metal-glass-hybrid-components

As powder bed based additive manufacturing (AM) is gaining more traction in the research and industry, significant efforts are made to expand capability of AM combining different materials. Conventionally, multiple materials, sealants processes necessary order join metal glasses assemblies. The development a single-step process for vacuum-tight strong bonding between glass could drastically reduce part count assembly cost. This paper investigates feasibility joining iron-nickel-cobalt alloy Kovar with borosilicate glass. fusion by laser beam used melt structures directly onto substrates. Suitable parameter an iron-silicon-oxide material-bonding layer 3 µm thickness were developed using design experiments. With energy input 333 J/mm³ initial 60 bulk structure, tensile testing metal-glass-connection revealed forces up 0.5 MPa.