Direct Bonding of Glass and Metal Using Short Pulsed Laser

Generally, brazing, involving the insertion of the molten metal, is the method used for bonding glass and metal. In this study, we tried to bond glass and metal directly. That is, we brought glass and metal into contact and bonded them by irradiating the surface of the metal with a short pulsed laser through the glass. By this method, the average temperature of the materials remained cold at bonding. This bonding method seems to able metal grains that adhere to the glass anchoring the metal. However, when the irradiation was conducted too many times, or when the irradiation energy was too large, cracks and pitting may be produced on the glass surface.