Metal treatment – Process of modifying or maintaining internal physical... – Superconductive metal or alloy
Reexamination Certificate
2005-02-01
2005-02-01
Kopec, Mark (Department: 1751)
Metal treatment
Process of modifying or maintaining internal physical...
Superconductive metal or alloy
C505S806000, C174S1240GC, C420S425000, C420S901000, C029S599000
Reexamination Certificate
active
06849137
ABSTRACT:
An Nb3Sn-based superconductive wire which, when used in a superconductive magnet, manifests sufficient strength also against force along the radius direction in operating the magnet and reveals little deterioration in properties due to mechanical strain ascribable to the force along the radius direction is provided. An Nb3Sn-based superconductive wire comprising a bronze/filament aggregate obtained by placing a lot of niobium (Nb) or niobium alloy filaments in a copper (Cu)-tin (Sn)-based alloy matrix, wherein said niobium or niobium alloy filament constituting the bronze/filament aggregate3′ is a composite filament5obtained by combining with a filament reinforcing material having mechanical strength under temperature not more than room temperature after thermal treatment for producing an Nb3Sn-based superconductive compound, larger than the mechanical strength of the niobium or niobium alloy.
REFERENCES:
patent: 4746581 (1988-05-01), Flukiger
patent: 5364709 (1994-11-01), Yu
patent: 5926942 (1999-07-01), Kubo et al.
Properties of fiber-reinforced niobium-tin superconductor fabricated by bronze process, H. Tateishi, K. Agatsuma, K. Arai and M. Umeda, Electrotechnical Laboratory, Tsukuba, Ibaraki, Japan, Fujikura, Co. Ltd., Kotoku, Tokyo, Japan, IEEE Transactions on Applied Superconductivity, vol. 9, No. 2, Jun. 1999.
Mechanical Properties of a Niobium-Tin Superconductor Reinforced by Tantalum Cores, J. Kondoh, H. Tateishi, M. Umeda, K. Arai, K Agatsuma, K. Gotoh, and T. Saitoh, IEEE Transactions on Applied Superconductivity, vol. 11, No. 1, Mar. 2001.
Matsukura, et al., “Development of Nb3Sn Supervonductor for 1 GHz Class NMR Magnet-High Strength Nb3Sn Superconductor”, The 56th Meeting on Cryogenics and Superconductivity, May 15, 1997, no english abstract or disclosure.
Kondoh, et al., “Irreversible Strain Limit of Fiber-Reinforced-Nb3Sn Superconductors”, The 60th Meeting on Cryogenics and Superconductivity, Jun. 9, 1999, no english ab or disclosure.
Iwaki Genzo
Kimura Morio
Hitachi Cable Ltd.
Kopec Mark
LandOfFree
Nb3Sn-system superconductive wire does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Nb3Sn-system superconductive wire, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nb3Sn-system superconductive wire will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3455851