Trying out niobium for a bit, any reason I should stop?
I like it for TC since I'm kind of allergic to the nickel in stainless and titanium tastes a little off.
It might be better if you anodise is first? But it's about as unreactive as tantalum and it looks like the oxide might even be more stable than nickel's so I guess as long as the oxide doesn't get released much it should be fine?
Resistance is about twice that of nickel; 22ga coil, 6mm wide, 8 wraps comes to 0.07ohms.