Stator and method of fabricating a stator

A method of fabricating a stator comprising:

• providing a plurality of electromagnet cores, wherein each electromagnet core comprises;
• a stack of laminations defining a tooth and a yoke segment, wherein the yoke segment defined by a stack of laminations further defines a tongue structure and an opposing groove structure;
• an insulating bobbin surrounding a portion of the tooth of each lamination, wherein each lamination is held against adjacent laminations by the bobbin;
• and
• electrically conductive windings surrounding a portion of the bobbin;
• wherein the stack of laminations further comprises:
• a first lamination comprising a first planar face;
• and
• a second lamination adjacent the first lamination comprising a second planar face, wherein the first planar face and the second planar face form an interface between the first lamination and the second lamination;
• a dielectric layer in physical contact with one of the first or second planar faces;
• and
• a heat transfer layer, different from the dielectric layer, in thermal contact with the other of the first and second planar faces, wherein the interface between the first lamination and the second lamination comprises the dielectric layer and the heat transfer layer;
• and
• assembling the plurality of electromagnets into a stator by mating the tongue structure and the groove structure of each electromagnet with a corresponding tongue structure and a corresponding groove structure of adjacent electromagnets.