Answer to Question #158378 in Physical Chemistry for deepak

Question

“Joining process may require establishment of bonding”. Analyze

Answer 1

Joining processes such as diffusion bonding during welding requires the establishment of bonding. The joining process wherein the principal mechanism is the interdiffusion of atoms across the interface. Most metals' diffusion bonding is conducted in a vacuum or an inert atmosphere (naturally dry nitrogen, argon, or helium) to reduce the faying surfaces' detrimental oxidation. Bonding of a few metals with oxide films thermodynamically unstable at the bonding temperature, for example, silver, may be achieved in air.