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On Sat, 15 Nov 2008 11:08:39 -0500, "Eisboch" wrote:
That's why the results of the tests were so bizarre. What I was doing was heating an object of a certain mass. When heating it with conventional means (or those used for the state-of-the-art at the time) the time required to heat the object ..... in this case to 200 degrees C. took many, many times longer when compared to the plasma configuration, using roughly the same amount of input power. I'll have to review the notes to get the actual numbers. I don't profess to understand what is going on, except for the facts that this occurs in a vacuum, under a partial pressure. Argon gas molecules are energized to an ionized (plasma) state within a confined space and are used to bombard the object, using a 400 - 500 volt DC potential difference. In some cases, I actually was able to begin to melt (actually evaporate or sublimate) the aluminum object in very short order, something that never occurred with the other means of heating. It's not dis-similar to a process called "sputtering", but you don't apply enough power to knock atoms of material off of the object (target). It's possible that you triggered an exothermic reaction of some sort in one of the materials. That would be a one time event, and excess heat production would stop once the reaction had run its course. |
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