Multifilamentary Nb/sub 3/Sn composite conductors: final report to Lawrence Livermore Laboratory

Technical Report · Wed Mar 01 04:00:00 EST 1978

DOI:https://doi.org/10.2172/6854574· OSTI ID:6854574

This report covers the work by Supercon, Inc. on the development of manufacturing techniques for a multifilamentary Nb/sub 3/Sn composite conductor of unique design during the period from October 7, 1976 to September 30, 1977. The uniqueness of the Supercon approach lies in the use of hollow niobium filaments in a high conductivity copper matrix. Each filament contains a core of bronze. During heat treatment the tin migrates from the bronze to the inner wall of the niobium filament where the Nb/sub 3/Sn is formed. The outer unreacted part of the niobium filament serves as a barrier to protect the purity and high conductivity of the copper. Thus, each filament is stabilized in the same way as in the composite NbTi conductors. During this period, test samples of conductor containing large numbers of filaments were made from small two inch diameter billets. The samples were given three different heat treatments and tested by Lawrence Livermore Laboratory.

• Research Organization: Supercon, Inc., Natick, Mass. (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6854574
• Report Number(s): UCRL-13851
• Country of Publication: United States
• Language: English

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GENERAL PHYSICS
ALLOYS
CABLES
COMPOSITE MATERIALS
CONDUCTOR DEVICES
ELECTRIC CABLES
ELECTRICAL EQUIPMENT
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