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Low Resistivity Contact to Iron-Pnictide Superconductors
Category(s):
For Information, Contact:
Craig Forney
Commercialization Manager, Chemistry and Materials Sciences
515-294-4740
licensing@iastate.edu
Web Published:
5/14/2015
ISURF #
3707
Development Stage:
Samples are available for testing, and ISU is seeking commercialization partners for this technology.

Description:
Superconductors are materials which carry electrical current without dissipation. However, feeding electrical current into a superconductor generates heat dissipation in the contacts and degrades maximum attainable current value. The degradation in contacts is also different depending on the different chemical nature of the superconducting materials. Iron-pnictide based superconductors have a number of superior properties as compared to other known high temperature superconductors, and due to their high critical magnetic fields, can be competitive alternatives for generating high magnetic fields without loss of resistance.  In order to take advantage of these properties, Iowa State University and Ames laboratory researchers have discovered a contact material and developed a method for its application which provides the necessary low electrical resistivity for iron-pcnitide superconductors. This new technology is easily adaptable to current solder methods used for creating electrical contacts and has the advantage of being very economical.

Advantage:
• Effective (provides low contact surface resistivity of 10-9 W.cm2)
• Economical (utilizes current solder methods with an economical material
Application:
Electrical contact material for superconductors based on iron-pnictides

References:
Patent Information:
*To see the full version of the patent(s), follow the link below, then click on "Images" button.
Country Serial No. Patent No. Issued Date
United States 12/931,999 8,450,246* 5/28/2013


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