[time-nuts] OCXO housings - Why copper and not iron/steel?

[Bruce Griffiths]

Not true 
The Wiedemann-Franz gives the ratio of the thermal conductivity to electrical conductivity of a metal:
( pi^2 / 3 ) * ( (k/e)^2 ) * T

Bruce
> On 31 October 2020 at 12:49 "Dr. David Kirkby" <drkirkby at kirkbymicrowave.co.uk> wrote:
> 
> 
> On Fri, 30 Oct 2020 at 22:17, Luiz Alberto Saba <las at intercat.com.br> wrote:
> 
> > My bad... copper is the second, losing only to silver, as a thermal
> > conductor.
> >
> 
> I think you are mistaken.  Copper is second to silver for *electrical*
> conductivity, but I doubt that is so for thermal conductivity. I think
> diamond, which is a form of carbon, is the best thermal conductor, and
> around 5x better than copper.
> 
> Dave
> 
> -- 
> Dr. David Kirkby,
> Kirkby Microwave Ltd,
> drkirkby at kirkbymicrowave.co.uk
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