Protection by Separation of Materials from the Environment

Make the basic decision as to the type of separation method to be used with respect to the following 

Which methods will suit the considered geometric form initially and at repetitive maintenance which method will suit the requirements of frictional joints  

What will be the effect of thermal shock, abrasion, impact, overheating, and cryogenic temperatures on the selected system  

What stage of fabrication and assembly may be critical for the optimum application of considered methods to fit well into the production program  

Metal coating processes can be classified as anodic or cathodic. The anodic ones will protect substrate metal (even when porous or damaged) through their preferential corrosion, whereas the noble metal coatings, which are mainly used for their superior chemical-resistance properties, will accelerate the corrosion of the metallic substrate in such circumstances (see Table 10.5). 

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