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Lead-free joining of Niobium based superconductors for MRI/NMR machines

Image from Licence Details: Lead-free joining of Niobium based superconductors for MRI/NMR machines

Applications: MRI (Magnetic Resonance Imaging), NMR (Nuclear Magnetic Resonance), Superconducting Magnets, Power Transmission

Features Benefits
  • Novel method for joining Nb (Niobium)-based multifilamentary wires, such as Nb-Ti (Niobium Titanium), using doped MgB2 (Magnesium Diboride) as a filler material.
  • Joints enable high current flow for the generation of powerful magnetic fields using multiple superconducting coils.
  • MgB2 has excellent superconducting properties, e.g. critical field much higher than current joint filler materials; a much higher critical temperature.
  • Joints have higher magnetic fields can be placed easily inside the magnet cryostat – providing greater flexibility in magnet design.
  • Resultant joints can carry hundreds of amperes at resistances well below 10-12Ω, satisfying the requirements for persistent-mode superconducting magnets.
  • Joints with persistent-grade performance at high currents facilitate the ultra-stable fields necessary for MRI and NMR designs.
  • No lead-based materials used in the making of the joint.
  • Lead-free joints mitigate removal or possible weakened exemptions by Regulatory Bodies on use of of lead in medical devices.
  • The Oxford method of joining is straight forward: no complex steps or exotic substances inhibiting manufacturing scale-up.
  • The manufacturability and repeatability of the jointing research are important outcomes to underpin industrial scale development.

Available for:

  • Licensing
  • Co-development
  • Consulting
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