Letter 34046

Boron nitride surface coating on aluminum plate [Utah] 

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I am researching the process and process chemicals necessary to produce a boron nitride produced oxide (I think) surface on aluminum plate. My desired result will be an aluminum plate surface which is considerably smoother than untreated and presents some durability. The finished surface need not stand up to severe direct abrasion but should wear better than the raw surface.

Mike Andrus
- Hurricane, Utah, United States

You just "think" or you "know" it has to be boron nitride? Boron Nitride, indeed, is very hard but difficult and expensive to apply. Now, based on your goal, you should know there is a way to produce a hard coating over aluminum of something "almost as hard" in a very tried-and-true-less-expensive way. It´s called hard anodizing and the coating produced is aluminum oxide (saphires, rubies, emery paper, blast powders and cutting stones are made of it).

Guillermo Marrufo
Monterrey, NL, Mexico

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