Re: pure water capacitor?

• To: tesla-at-pupman-dot-com
• Subject: Re: pure water capacitor?
• From: "Jim Lux" <jimlux-at-jpl.nasa.gov> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
• Date: Thu, 17 Feb 2000 21:20:10 -0700
• Approved: twftesla-at-uswest-dot-net
• Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

OTOH, Ice doesn't have the nice high dielectric constant, mostly because
once frozen, the water molecules are fixed in a lattice and can't move to
align with the field, which is why water has such a high epsilon in the
first place.

However, on the good side, ice has a much lower loss tangent (orders of
magnitude), particularly at microwave frequencies, which is why thawing
things in a microwave oven is so iffy.


> Only thing that you could try to do is a ice capacitor - distill water
and
> freeze it in a vacuum, then use the ice as dielectric. Moving molecules
> shouldn't be a problem then, neither water conduction, nor gas
generation.
> But you'd have to keep the thing cooled down somehow, and try to ban all
> corona around the electrodes. :(
> Just a thought.
> 
> --
> *************************************************
>  Jan Florian Wagner
> 
> 

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