Howdy!
I'm working on building a small vertical wind turbine. I thought I would be cool to have the rotor suspended by a magnetic halbach array to reduce friction. I was thinking of using washers that have been magnatized for this part, since they are pretty cheap.
My question is what kind of washers (what kind of metal) should I be looking for? I've tried magnetizing a few washers but could not make them permanent magnets.
The electricity producing magnets would of course be made of higher performing magnets...