Olin Lathrop wrote:
>
> > Hi Jinx, since I know you weld and are open
> > to quirky ideas, how about "metalising" the
> > ceramic surface by vaporising a copper wire
> > close to it? Like the inside of a badly blown
> > fuse, if you severely over-current a copper
> > wire it gives a very nice copper film on anything
> > near it.
>
> Wouldn't the copper oxidize rapidly as a high temperature vapor?  Aluminum
> deposition for optical mirrors is done in a similar way, but in a vacuum.
> That also helps with coverage.


OK, so suggest a solution. Wouldn't the copper
be deposited in a thick enough film to allow
soldering? What about using a number of "flashes"
or maybe just tinning the copper before it oxidises?

I don't think he needs a precision film, just a
way to solder to a ceramic object without heating
it too much. I've used that silver paint and don't
like that idea, it's "powdery" and very weak and
doesn't stick that well.
-Roman

--
http://www.piclist.com#nomail Going offline? Don't AutoReply us!
email listserv@mitvma.mit.edu with SET PICList DIGEST in the body