[NewCandle] Silver dendrites

[Nick Reiter]

Hi Keith and all,

Nice pic!  One wonders if highly dendritic growth
might be more influenced by vacuum fluctuation energy
than orderly epitaxial growth.  Conversely, highly
dendritic structures might form an exotic fractal
antenna for vacuum radiation modes?!?!

A few years back, I was trying some nutty
electrodeposition of tellurium (Te) and got similar
dendrite forms.

n


--- Keith Nagel <NewCandleAdmin at ipdiscover.com> wrote:

> Hi All,
> 
> Here's a photo of an experiment I did around the
> time of my work with
> silver.
> The cathode shown here is carbon, the anode a silver
> disc (not shown) below,
> the electrolyte is a solution of silver nitrate.
> Applied current was in the
> neighborhood of a hundred milliamps.
> 
>
http://www.kpnconsulting.com/newcandle/download/SilverDendrite.jpg
> 
> Silver is interesting in that it really wants to
> grow in the dendritic form,
> it requires a special chemistry to get a solid dense
> plate at reasonable
> current densities.
> 
> The point of this study was to better understand
> dendritic growth of silver
> under controlled current density. In the aluminum
> displacement reaction,
> the current density is uncontrolled but in general
> is _very_ high.
> 
> K.
> 
> 
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