Lafonte based generator.

[Airstriker]

The only reason why ferrite is mentioned is due to eddy currents. So yes it's immune because it's a bad conductor. The curie temp has little relevance imo. As for friction, obviously you want a very small air gap between rotor and stator. This might have small disadvantages but the advantages far outweigh a design with no air gap and maximum friction.

Sure but you forgot about one common problem with ferrite cores - they usually have very low saturation level - you cannot use strong magnetic field on them. That's why you don't usually see this kind of cores in the motors. But maybe you can suggest some ferrite cores for that ?

[broli]

Sure but you forgot about one common problem with ferrite cores - they usually have very low saturation level - you cannot use strong magnetic field on them. That's why you don't usually see this kind of cores in the motors. But maybe you can suggest some ferrite cores for that ?

Then why not just stick with ferrite magnets too?

[norman6538]

Does anybody know if Butch LaFonte is  still  around.
I have not seen and recent posts and I'll like to
get in touch with him about some new ideas.

Norman