DEVELOPMENT OF CU-NB ALLOY MICROCOMPOSITE CONDUCTORS FOR HIGH-FIELD PULSED MAGNETS

The results of investigation on the influence of the intermediate heat treatment on the mechanical and electrical properties of Cu-Nb alloy microcomposites are presented. The transformation of structure and mec hanical properties at the different stages of the production process a re discussed, Different designs of microcomposites are developed which allowed to vary the combination of mechanical strength and electrocon ductivity in sufficiently wide range: UTS - from 900 to 1,200 MPa and conductivity from 65 to 75% IACS. Developed approach to manufacturing process are valid for production of the conductors with enhanced (abov e 10 mm x 10 mm) cross sections.