A New High Strength Conductor with High Coductivity for High Magnetic Fields

摘要

A new copperiobium microscomposite conductor exhibiting high mechanical strength and high electrical conductivity was evaluated. This has been developed by Hitachi Cable CO. Ltd. for high magnetic field applications. The conductor is constituted of a copper-matrix and many copperiobium microcomposite filaments. The microscomposite filaments were fabricated through a jelly-roll process. The ultimate tensile strength of the as drawn 1.0 mm diameter conductor were 1029 MPa at room temperature and 1199 MPa at 77 K. This also shows high conductivity (73