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me356 has made an SEM analysis of some "part processed fuel and foil" of Bob Greenyer's indian scientist fellow Suhas:
Interesting Comments by me356 :
I can say that Nickel foil is looking very good. Clearly the surface is processed in the right way. There is just some contamination, but probably not issue.
The surface is processed quite homogenously. To get even better results, I recommend few times longer processing so that bubbles are everywhere.
Sample it is more interesting, nickel/titanium is rather spherical which is not optimal. It may be less capable of Hydrogen loading. So replacing it with carbonyl nickel might give much better results.