Can coatings prevent sublimation?

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Coatings can potentially slow down the sublimation of steel, but their effectiveness depends on the type of coating used. Any coating applied will be sacrificial, meaning it will degrade over time as the underlying material sublimates. Iron may migrate into the coating and subsequently evaporate from it. Suitable sacrificial coatings for iron or steel include copper, zinc, polymers, or paint. The discussion highlights the complex interaction between coatings and sublimation processes in materials.
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Question for materials scientists: All solids evaporate (or sublimate) over some time, even steel. Could the sublimation of steel over time be prevented or slowed with a coating?
EDIT: Do diamonds themselves sublimate in a vacuum?
 
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Mgt3 said:
Could the sublimation of steel over time be prevented or slowed with a coating?
Yes, but it will depend on the coating, the iron may migrate and go into solution in the coating, then evaporate from the coating.

Only the existing surface sublimes, any coating will be sacrificial.
 
Baluncore said:
Yes, but it will depend on the coating, the iron may migrate and go into solution in the coating, then evaporate from the coating.

Only the existing surface sublimes, any coating will be sacrificial.

What could be used as a sacrificial coating for iron or steel?
 
Mgt3 said:
What could be used as a sacrificial coating for iron or steel?
Copper, zinc, a polymer or a paint.
 

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