Treatise on Materials Science and Technology, Volume 14

A/cm A15 compounds A15 phase ac losses alloys annealing Appl atoms braid bronze bronze-processed Brookhaven National Laboratory cable chapter by Dew-Hughes coil composition conductor Conf configuration copper critical current density critical temperature Cryogenics decrease defects diameter diffraction dislocation ductor effect electron microscopy electropolishing energy external field filaments first flow fluence flux jumping flux lines Flux Pinning function grain boundaries heat treatment helium high-field IEEE Trans increase irradiation lattice layer Lett Lorentz force Luhman Magn magnetic field materials matrix mechanical metal multifilament Nb 65 wt Nb-Ti Nb3Al Nb3Ge Nb3Sn niobium normal observed parameter phase diagram Phys pinning force precipitates Proc ratio reduced regions sample Section shown in Fig specimen stability stoichiometric strands structure Suenaga sufficient supercon superconducting lenses superconducting magnets superconducting properties surface currents tape technique thin tion type II superconductors upper critical field V3Ga V3Si Valdre values winding wire