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topic 61035

Polishing aluminum deposited on glass to 0.2 nm

November 10, 2019

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?

Ph.D. Scholar - INDIA

November 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.


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Ted Mooney, P.E. RET - Pine Beach, New Jersey
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