Induction heating and melting apparatus with superconductive coil and removable crucible

摘要

An induction heating apparatus (10) having a refractory vessel (12) for holding a quantity of material to be heated by the apparatus. The vessel being surrounded by, but does not touch, an induction coil (14) having a plurality of helical turns (38). The turns of the induction coil have a surface on which is disposed a layer of high temperature superconducting material (42). <IMAGE>