AN EXPERIMENTAL STUDY ON FABRICATION, MECHANICAL BEHAVIOR CHARACTERIZATION AND MICRO STRUCTURAL EVOLUTION IN GLASS METAL JOINTS

The Glass-Metal Joints play an indispensable role in many applications such as, in concentrating solar power, nuclear and electronics industry. The aim of the, present work is the fabrication of glass-metal joints using borosilicato glass with austenitic stainless steel and copper. The joints were, fabricated using resistance heating and mechanical behavior of these fabricated joints was determined. Single :lap joint between glass and metal was used in order to measure the strength of glass-metal joint. The micro-hardness evaluation of these fabricated joints was also carried out. Oxidation studies were also conducted to examine the role of oxide formation in the joints using X- Ray Diffraction measurements. The mechanical behavior and microstructure evolution of austenitic stainless steel to borosilicate glass joint and copper to borosilicate glass joint were analyzed and it was found that bonding characteristic of different glasses with copper was poor, because of its poor thermal stability at higher scaling temperature. Out of different composition glasses, G6 glass resulted shear strength around 0.124MPa which was the, maximum among all joints.