Sorry to not fix this myself, but I don't quite know what to do with it : This article and cortenum basically are the same thing. Should they be merged or differentiated? Also note the existence of diffusion bonded monocrystal to further confuse the issue, perhaps monocrystal should get it's own page too -- Capricorn 10:18, 8 June 2009 (UTC)

I've changed the pna to a merge suggestion, since that's what you're proposing.--31dot 10:33, 8 June 2009 (UTC)