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Aluminum Copper Alloy Experiment

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ironman:
For me Stirring did not help, you may be right better to leave it go and do it's own thing instead of trying to speed it up.

Manxmodder:
Steve,ironman, this is a very interesting topic indeed. I can see the logic in Steve's theory that stirring may be interfering with the eutectic process,but I also wonder if adding a flux after the aluminium has melted would speed up the alloying process.....OZ.

mattinker:
When I made my ZA12, I used fine stranded wire, a coincidence, but I didn't need much by weigh as it was about 1% of the finished alloy. It just disappeared into the Al. I would support Steves theory about the stirring. this is a dissolving process in a corrosive environment.

Regards, Matthew.

vtsteam:
Any chemists out there could probably correct my ancient high school memory of how the periodic table works, left to right, but I'm guessing Alumin(i)um would beat the pants off of Copper in a fair fight for the hand of Oxygen. That is, if it wasn't already married!  :lol:

So if that's true (highly suspect) I imagine happily oxidized copper surrounded by a vat of molten aluminum is in for a rapid divorce, flux or no. Or to put it another way, aluminum would be a flux for copper, among other things.

Please notice I'm drifting off into hated theory, and experimenting less...... :smart: :loco:

S. Heslop:
I'd say it depends on what the activation energy is. It's pretty much the classic thermite reaction but that famously needs a damn hot flame to get it going.

Some day i'm going to go through my old notes because i've forgotten almost all the stuff I learned at university... it makes me a pretty lousy chemist.

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