Vacuum Cadmium

Conventional thermal vapor deposition involves heating of cadmium in a vacuum until it vaporizes. Cadmium atoms then condense on the substrate to form a thin high quality coating of cadmium. Ion deposition in argon atmospheres adds more energy to this coating process and uses ‘sputter cleaning’ to clean the substrate surface. As a result, ion deposition is said to give improved coating adhesion, density and uniformity.