Re: Dear Rich REGARDING TITANIUM or ALUMINUM as an electrode

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "robert heidlebaugh" <rheidlebaugh-at-desertgate-dot-com> 

Bill: Tungsten works best for spark gaps because it resists metalic
evaporation and the operating temprature is well below the ignition
temprature of tungsten. Palladium also works well. Platinum poisones easly
and is not a good choice. In salt water capacitors titanium resists
deterioration beter than nickel or platinum.
        Robert   H
-- 


 > From: "Tesla list" <tesla-at-pupman-dot-com>
 > Date: Fri, 13 Aug 2004 07:44:30 -0600
 > To: tesla-at-pupman-dot-com
 > Subject: Dear Rich REGARDING TITANIUM or ALUMINUM as an electrode
 > Resent-From: tesla-at-pupman-dot-com
 > Resent-Date: Fri, 13 Aug 2004 07:49:48 -0600
 >
 > Original poster: "Bill Ackley" <backley-at-satx.rr-dot-com>
 >
 > This metals have a valence of +3 or +4 if pushed hard enough, this means
 > that under the flux of high potential spark you will have a rapid conversion
 > to the metallic oxide.  Electrode metals, if they are to last should be
 > found on the periodic table with low valence & high melting point, platinum
 > would be nice if we could afford it.  Just a suggestion.
 >
 > Respectfully,
 >
 > B.J. Ackley
 > BSEE,MS,PhD
 >
 >