/diy/ - Do It Yourself

>>1936306
>That seems really difficult
I meant electrically floating. As in, not referenced to any other part of the circuit by virtue of being powered through an independant transformer winding.

Metallic aluminium might have some adverse effects at those temperatures if some is still left after oxidising/anodising it. And IIRC aluminium can't be easily electroplated at all, at least not in aqueous solutions.

A vacuum deposition chamber isn't actually that difficult to build, the glass dome (or mixing bowl) and vacuum pump are relatively common parts to buy (you'll need a vacuum pump anyhow), and you just need a ring magnet or two and some heating shit. Watch this and see if it's within your range:
https://youtu.be/Cyu7etM-0Ko
It's also possible that a non-aqueous redox reaction left the coating, like a thermite reaction.

>I've kinda got a process going for applying calcium oxide to the cathode.
Neat to hear!

>>1936308
Red is the frosty white stuff I'm referring to, yellow is what I'm assuming to be copper wire or some other wire with low resistance, and blue is what I'm assuming to be kanthal or tungsten or some other resistive metal that can handle sufficient heat. The white coating is definitely not on the copper wire or on the tungsten.

I'm not sure what exactly your other image is showing, though it looks like some thin wires with PTFE or maybe ceramic insulation.