Mechanical and thermal properties of self-bonded superconducting winding

The stability of self-bonded superconducting solenoids has been studied by investigating the mechanical and thermal properties of self-bonded superconducting windings. An adhesive-bonded superconducting solenoid can be fabricated by winding superconducting wire coated with self-bonding resin and by heating the winding. Although the interlaminar shear strength of the self-bonded winding was lower than that of the impregnated one, the self-bonded winding also exhibited high compressive modulus and slightly lower thermal contraction. It could be, therefore, assumed that the instability caused by friction between the winding and the former could be repressed. This was confirmed experimentally, that is, the high stability self-bonded test coils which did not show training were successfully constructed.