On Wed, 20 Apr 2005 20:39:25 GMT, Rich Hampel
wrote:

Because its 90-10 Cu-Ni

In article , Rodney
Myrvaagnes wrote:

On 19 Apr 2005 11:40:44 +0200, Ole-Hjalmar Kristensen
wrote:

This reminds me of a pretty ideal alloy for ship plating : monel.
Corrosion resistant, strong, and no need for antifouling paint, I
would think. The price would probably be prohibitive.

--
Why no need for antifouling? Monel is pretty nonreactive. How would it
keep things from growing? I'd expect a grand barbacle crop quite soon.


It could be all copper, but if it is locked in a matrix that makes it
nonreactive it could just as well be anything else nonreactive, and it
wouldn't have antifouling properites.

It has to be _available_ copper. To a barnacle, monel would be just
like stainless steel, or gelcoat.

Antifouling works by poisoning the boundary layer, not by magic.

The trick is to poison the boundary layer without poisoning everything
else--hence the objections to organo-tin.



Rodney Myrvaagnes NYC J36 Gjo/a

"WooWooism lives" Anon grafitto on the base of the Cuttyhunk breakwater light