Interesting.  Since we know that browning movement is involved in the
aggregation of particles, I would suspect that ultrasonic vibrations would do
the same thing if sufficiently strong enough.  But testing would have to be done
to be sure.

Marshall

brpete...@msn.com.au wrote:

> As a user of the pulsed d.c. method of cs generation,I have recently become
> curious as to any beneficial effect of ultrasound frequencies applied to the
> colloidal process.
> My initial reasoning was related to the effect called cavitation,wherein
> microscopic pressure "bubbles" (as utilised in ultrasonic cleaning) greatly
> assist surface cleansing..a "scrubbing action",if you will.
> Now,would using such a system during the making of cs speed up the
> process,and,is there an optimum frequency range?
> Apparently,higher ultrasound (~350kHz) dislodges smaller particles than a
> lower ultrasound (eg 100kHz) during ultrasonic cleaning.Hence could one
> optimise the applied ultrasound frequency to the colloid generation for the
> desired particle size(s)?
> Hey,what if the silver electrodes themselves are pulsed at this ultrasonic
> frequency?
> I had a glance on the net enough to realise the scientific research is
> somewhat beyond me,hence my question to the list..Is anyone else pursuing
> this line of inquiry?
> petemc
>
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