Ivan; The presence of air generats hugh quantities of NO3. I have has high as 80 ppm of NO3. CO2 is a better gas blanket.
I test each run for NO3 and they come out less that 1pp and most of the time zero. "Ole Bob" Ivan Anderson wrote: > Roger, > > Do you have both of your wires in free air, and the arc forms between > them? If so, it sounds very much like an arc spray process. If one of > your wires is in the water and the other in free air, the arc forming > between it and the water, then the process sounds like plasma deposition > or spray arc, the later if occasionally a molten ball falls from the > electrode. > > Whatever method, you will surely achieve a much more stable arc, with > out the smoke etc. (which suggests to me that a great deal of oxidation > is occurring) if you shield the arc with an inert gas such as argon or > nitrogen. > > You may also find that a pulsed DC supply would give you superior > results. > > Ivan. > > ----- Original Message ----- > From: <[email protected]> > To: <[email protected]> > Sent: Monday, 11 September 2000 09:57 > Subject: Re: CS>Re: Generating "Sputtered" HVAC CS > > > In a message dated 9/10/00 12:40:13 PM EST, [email protected] > writes: > > > > << Check the definition of sputtering and of evaporation. What you > descripe > > is > > evaporation, and entirely different animal from sputtering. > Evaporation not > > only > > requires high tempertures, but usually requires a hard vacuum as > well. > > Sputtering > > happens at any temperature, even room temperature. It is when > electrons in > > an > > arc have sufficient energy to knock individual atoms or clumps of > atoms off > > the > > target material when they hit. > > > > A very good example of sputtering at room temperature is the > darkening of the > > ends of florsecent lamps at the ends, where the tungston is sputtered > off and > > then condenses onto the ends of the glass tubes making them black. > The > > tungston > > is far below the melting point of tungston when this happens. > > > > Marshall > > >> > > > > Marshall: I'm sure you're correct in your definition of sputtering. > However, > > I still think that what I call "sputtering" may not be evaporation > because it > > occurs spontaneously and is way out of proportion to the apparent > temperature > > rise of the molten ball. It appears (producing copious sparks and a > smokey > > corona) and disappears while the ball is still molten and seems to > originate > > from inside the ball exactly where the white hot cross section of the > beam > > touches it. Has anyone else observed this phenomenon? Roger > > > > > > -- > > The silver-list is a moderated forum for discussion of colloidal > silver. > > > > To join or quit silver-list or silver-digest send an e-mail message > to: > > [email protected] -or- [email protected] > > with the word subscribe or unsubscribe in the SUBJECT line. > > > > To post, address your message to: [email protected] > > Silver-list archive: > http://escribe.com/health/thesilverlist/index.html > > List maintainer: Mike Devour <[email protected]> > >
