View source for Graphene sheet lining

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It may be possible to passivate some base materials by tacking on graphene sheets onto the surface. <br>
The bonds found in [[sandwich compound]] may be usable here. <br>
Especially for materials that are otherwise hard to passivate this may be a possible option.

[[Graphene sheet lining]] may be an option for bigger sized gears <br>
where teeth are no longer single atoms but teeth instead already approximate evolvent or cycloid profiles. <br>
See: [[Example crystolecules#Gears with bigger teeth made from multiple atoms]]

== Feasibility ==

{{speculativity warning}}<br>
'''At this point this is just a wild idea, it may or may not work. Or something in-between.''' <br>
More detailed investigations will be necessary to tell.

The possible concerns are numerous and include at least:
* Can the tack-on density by high enough such that between the tack-ons there is not too low of a stiffness? (Nothing "crinkling" up froming gaps below?)
* Will a too dense tack-on pattern distort the graphenes electronic structure so much that it will become too reactive or even fully unstable?
* How well does the graphene conform to the underlying material?
* How much curvature is ok before localized kinks or too much change in electronic structure?
* How well can the graphene smooth out steps below in the underlying material?
* How bad is the variation in stiffness when crystallographic steps are covered at shallow angle?
* ... and so on and so forth ...

== Choice of terminology ==

Here the "lining" part  in the sense of pillow lining cushion lining ore rather more in the sense of 
[https://en.wikipedia.org/wiki/Brake_lining brake lining] a thin strongly connected layer to a stiff and hard background material
just that here 
* its meant to lower friction rather than increase it
* it's not a consumable bur [[wear free]]

== Related ==

* [[Nanoscale surface passivation]]
* [[Example crystolecules#Gears with bigger teeth made from multiple atoms]]