Laser-Welded Steel Foils with Sapphire Substrates

Araceli de Pablos-Martín, Christian Grosse, Andreas Cismak, Thomas Höche

Fig. 2 Top-view optical micrographs of the sapphire/steel interface in the middle of the irradiated line a and showing one of the extremes of the line b. Sapphire substrate is upward