I need to attach some other metals to tungsten TIG welding rod I am
using as electrodes in glass-envelope tubes I make myself.
The TIG rod I am using is 1/16 and larger, 2% thoriated.
I want to be able to solder or braze to it: copper wire, other shapes
of tungsten, and/or stainless steel wire or other stainless steel
shapes. If other metal types are easier to solder or braze to
tungsten, I would certainly consider them. (The advantage to using
tungsten is its excellent match of thermal expansion coefficient to
glasses, and its high temperature strength.)
Tungsten sure is weird stuff. Any suggestions for soldering/brazing
I found one reference in Strong's "Procedures in Experimental Physics"
(Lindsay Publications, from the 1930's) to something called "Advance"
metal that could be soldered on to tungsten. Anyone know what that is,
how or where to get some, or what fluxes to use with it?
Thanks in advance.