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Deutsche Nanoschicht HTS versus Cu

 

Deutsche Nanoschicht HTS critical parameters

High-temperature superconductors

Superconductor revolutionise the use of energy

  • Highest energy efficiency: no ohmic resistance
  • Highest material efficiency: up 10000 time higher energy density

Currently, all leading system manufacturers worldwide design, construct or test prototype applications to gain future prospects for unique energy opportunities. Especially the use and transport of electricity by superconductor technology are the main options. Amongst others, the most promising approaches are generators for wind and hydro power, turbo generators, ship propulsion motors and power cables for urban areas.

25 years ago, so called high-temperature-superconductors (HTS) have been discovered by Johannes Georg Bednorz and Karl Alexander Müller. These materials are based on copper-oxide ceramics which allow new energy applications due to their superior properties.
In general, superconducting materials are characterised by three critical parameters:

  • Temperature Tc
  • Current density Jc
  • Magnetic field Hc

High-temperature superconductors even function at a critical temperature above 77K enabling the cooling with liquid nitrogen. Today, cooling can be realised efficiently by conventional cooling devices with significantly less than 1% of the rated system power. Extremely compact and light-weight electric systems can be implemented by highest current densities up to 50000A/mm² (copper: 5A/mm²) and critical magnetic field up to 100T.