In this article we article we will discuss about the metallic and non-metallic types of coating metals. Cost is a very important factor while choosing an engineering material. In majority of applications of metals, the importance of the corrosion factor does not warrant the use of expensive corrosion-resistant alloys. Thus, when an easily corrodible alloy like steel is used, some [...]
Electron Beam Coating is a process is based on evaporation in a vacuum to produce thin films. The electron beam as an energy carrier serves to heat the evaporant in the crucible directly. Electron beam is generated in the electron gun, and by suitable focussing and deflection, is passed through the work chamber to the evaporant. Both the work chamber [...]
The following points highlight the twelve main methods adopted for coating of metals. The methods are: 1. Hot Dipping 2. Galvanising 3. Tin Plating 4. Lead Coating 5. Metal-Cladding 6. Diffusion 7. Sherardizing 8. Calorising 9. Chrome-Diffusion 10. Siliconising 11. Anodising 12. Parkerizing. Method # 1. Hot Dipping: Hot dipping coatings can be used for coating high melting point metals [...]
The following points highlight the four main techniques involved in the modification of surface in coating of materials. The techniques are: 1. Ion-Beam Based Techniques for Surface Modification 2. Thin-Film Vapour Phase Deposition Techniques 3. Plasma Treatments 4. Laser Treatment for Surface Modification by Surface Alloying. 1. Ion-Beam Based Techniques for Surface Modification: The useful life of many materials is [...]