In the experiment the Aluminium rod did not ignite like say magnesium would, but was crumbling, black and melting and had a yellow flame around it. Bunsen flame can easily reach 900 C as indicated by the red hot copper, putative max of 2000 C. The melting temp of Aluminium is 660 C. The black puzzles me but that is what happened, possibly a partial oxide or carbonate or something or as you say carbon though it was a blue flame so probably not.
Powdered aluminium is used as rocket fuel, it likes to oxidise but will not ignite, as you rightly say herm0016, as a solid. Its thought that powdered Aluminium was responsible for the ignition of the Hindenberg airship because it was used in aluminised paint on the exterior canvas, probably ignitied by static electric spark on touchdown of the mooring ropes.
It is used in heatsinks because it is cheap today (unlike Napoleons day when he had an aluminium dinner service made because it was the most expensive metal in the world, lol) and it will do the job within tolerance limits, but obviously it is not the optimum and in mission critical components you would want optimum performance as with overclocking and that would come IMHO from a composite Copper & Aluminium structure.
Zalman are already doing composites but not quite the way I am thinking with integrated fin elements. Probably worth a patent but I will never do it so if someone else does and makes a fortune just give me a job in R&D ok, thx?
Powdered aluminium is used as rocket fuel, it likes to oxidise but will not ignite, as you rightly say herm0016, as a solid. Its thought that powdered Aluminium was responsible for the ignition of the Hindenberg airship because it was used in aluminised paint on the exterior canvas, probably ignitied by static electric spark on touchdown of the mooring ropes.
It is used in heatsinks because it is cheap today (unlike Napoleons day when he had an aluminium dinner service made because it was the most expensive metal in the world, lol) and it will do the job within tolerance limits, but obviously it is not the optimum and in mission critical components you would want optimum performance as with overclocking and that would come IMHO from a composite Copper & Aluminium structure.
Zalman are already doing composites but not quite the way I am thinking with integrated fin elements. Probably worth a patent but I will never do it so if someone else does and makes a fortune just give me a job in R&D ok, thx?
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