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Polishing aluminum deposited on glass to 0.2 nm

Q. I am depositing aluminium on glass substrate (Bluestar microscopic slides). Now I want to polish the aluminium substrate up to the surface roughness .3nm. What polishing material should I use and of what grit? Or is it not possible to achieve it?

ASHAMONI NEOG
Ph.D. Scholar - India
November 10, 2019

A. Hi ASHAMONI. While anything is possible, my limited understanding is that there is no technology for achieving such polishing. My quick googling and a few miniutes of reading seems to indicate that even specialized techniques have only achieved 0.7 nm on aluminum.

Regards,

Ted Mooney, P.E. RET
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
November 2019

Production Manager for Plating Co. - AST, Arvada, CO
Junior Sales Representative - Resintech, Camden, NJ
Nadcap Chemical Processing Auditor - PRI, traveling

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