GRAPHITE & COPPER 

           Very well known and used terms from our childhood. Both are having some similarities but here we are about to know Why is copper anti-seize is preferred to graphite anti-seize ( lubricant ).

Both can be used as lubricants and both perform well but using Copper as a lubricant will give you best results when compared to Graphite 




So to understand in a general manner lets consider a  graphite pencil as in the picture  




now apply some pressure to it 



as we see it is broken



In the same way, consider a copper wire 



Apply the same pressure as we applied to the Graphite pencil.




This is not broken but just deformed.


What makes the Graphite break and the Copper to deform?


GRAPHITE:  

           It is a crystalline form of carbon with its atoms arranged in a hexagonal structure,  Under high pressures and temperatures it converts to diamond. It is a good conductor of heat and electricity so it is used in electrodes, batteries, solar panels, pencils, and lubricants.



               Talking about the structure, the bonds are sp2 orbital hybrids and the atoms form in planes with each bound to three nearest neighbors 120 degrees apart as they form planes the bonding between these planes is very weak 



 So because of these weak bonds, graphite breaks when pressure is applied.




COPPER:

                It is a soft, malleable, and ductile metal that has very high thermal and electrical conductivity. It is also used as a conductor of heat and electricity.


As copper is soft and has strong bonds it could only bend without breaking.



So here is the reason why copper anti-seize is preferred to graphite anti-seize?



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