Analysis of monofilament and multifilament samples obtained from Phase I of the SSCL Vendor Qualification Program

Select samples from each cable vendor in the Superconducting Super Collider. (SSC) Laboratory Vendor Qualification Program were characterized by a series of mechanical and metallographic tests. Samples were chosen to cover the spectrum of monofilament types in each vendor's process. The tests performed were NbTi alloy hardness, tensile strength of the restack element, tensile properties of the restack element, without the copper, copper to superconductor ratio, barrier X-ray line scans, and NbTi alloy and Nb barrier image analysis. Process data supplied by each cable vendor are also analyzed to obtain extrusion k factor for monofilament and multifilament billets. The data available to date are summarized.<
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