DEVELOPMENT OF A CONTINUOUS PROCESS TO CLAD SUPERCONDUCTORS WITH HIGH-PURITY ALUMINUM-

HIGH ENERGY PHYSICS PARTICLE ACCELERATORS, SUCH AS THE THE PLANNED SUPERCONDUCTING SUPER COLLIDER (SSC),MAY REQUIRE ALUMINUM-STABILIZED SUPERCONDUCTORS FOR INCREASED CRYOGENIC STABILITY, LIGHTER WEIGHT, AND IMPROVED RADIATION TRANSPARENCY. THE CURRENT TECHNOLOGY FOR PRODUCING ALUMINUM-CLAD SUPERCONDUCTORS IS BASED ON ABATCH-TYPE EXTRUSION PROCESS AND IS INHERENTLY LIMITED TO SHORT LENGHTS. THIS PROGRAM WILL DEVELOP A CONTINUOUS CLADDING TECHNIQUE EMPLOYING A NEW METAL- FORMING TECHNOLOGY. MULTIFILAMENTARY NBTI-CU COMPOSITE WIRE WILL BE CLAD WITH ALUMINUM. THE PROCESS WILL MINIMIZE COTAMINATION OF THE HIGH-PURITY RATIO (RRR) IN THE FINAL CLAD PRODUCT. IN ADDITION TO EVALUATING RRR, THE PLANNED RESEARCH WILL EXAMINE THE EFFECT OF CLADDING TEMPERATURE ON THE CRITICAL DENSITY, AND THE QUALITY OF BOND BETWEEN ALUMINUM AND THE SUPERCONDUCTING CORE ELEMENT.