Novel particulate reinforced tin for tubular Nb3Sn multifilamentary superconductors Conference Paper

abstract

• A novel technique is under development for the production of a tubular core Nb3Sn composite superconductor using an inexpensive, easily fabricated core material. Initial experiments on the tin rich core material have included several different combinations of pure Sn, pure Cu, Sn4 wt%Cu, Sn8 wt%Cu, SiO2, and Al2O3 blended powders, which were hydrostatically compacted, and then consolidated by room temperature angular extrusion. The resulting consolidates are characterized by density, hardness, metallography, and compression testing. Of the mixtures tested, the best core material is a blend of rapidly solidified Sn8 wt%Cu powder plus 6.9 weight percent nanosized SiO2 particles. This particulate reinforced tin has a flow stress of (124 MPa)18 ksi and sufficient ductility to be conventionally extruded through a reduction ratio of four. A stronger tin alloy core material should be possible by powder metallurgy processing improvements.

authors

• Hartwig, Karl

published proceedings

• IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY

author list (cited authors)

• Hartwig, K. T., Chase, G., & Belan, J.

citation count

• 4

complete list of authors

• Hartwig, KT||Chase, G||Belan, J

publication date

• June 2003

publisher

• Institute of Electrical and Electronics Engineers (IEEE)  Publisher

published in

• IEEE Transactions on Applied Superconductivity  Journal

keywords

• Composite Conductor
• Dispersion Strengthened Tin
• Nb3Sn
• Tubular Multifilamentary Superconductor

Digital Object Identifier (DOI)

• 10.1109/TASC.2003.812395

start page

• 3548

end page

• 3552

volume

• 13

issue

• 2

URL

• http%3A%2F%2Fdx.doi.org%2F10.1109%2Ftasc.2003.812395