The can handle molten iron and nickel. I think rather than a heater, put the bone inside one of these, filled with molten metal. If there is self sustaining, it will just stay there, hot, unless with a run away explosion, which will be amazing.
The material does not seem to be expensive so, not much care (except in haddling) is required, it seems. -- Daniel Rocha - RJ danieldi...@gmail.com