Technologies Available for License
Category: advanced materials
2015-012: Long Length High Temperature Superconducting (HTS) Wires
Invention: 2015-012
Patent Status: U.S. Patent Number 10,242,770 was issued on March 26, 2019
For technical and licensing related questions, email tcp@bnl.gov.
Summary
Figure showing the Ic of short samples of the optimally irradiated wire as a function of field (H//c) and temperature. The Au irradiation results in an enhancement of 2-fold or more at fields over 1 T. For comparison, the Ic of an unirradiated control sample at 30 K is included in the plot.
This joint invention between Brookhaven and AMSC describes a method of producing long length high temperature superconducting (HTS) wires and more specifically HTS wires having a uniform distribution of nano-size pinning microstructures along their lengths and widths. The superconductor wire may be configured as a single strip or as multiple strips along the length.
Description
A sample method for producing a long length HTS wire includes providing a substrate (e.g., metal alloy), having a surface with a length of at least 50 meters and a width. The surface supporting a biaxially textured HTS layer (e.g., YBa2Cu3O7) and the biaxially textured HTS layer having a length and a width corresponding to the length and width of the surface of the substrate. The method also includes irradiating the biaxially textured HTS layer with a positively charged ion (e.g., Au ion) with energy in the range of 1-25 MeV impinging uniformly along the length and across the width of the biaxially textured HTS layer to produce a uniform distribution of pinning microstructures in the biaxially textured HTS layer.
Benefits
The process was used for the roll-to-roll irradiation of AMSC's standard 46-mm-wide production coated conductor strips, which were further processed into standard copper laminated coil wire. The long-length wires show the same enhancement as attained with short static irradiated samples. The roll-to-roll irradiation process can be incorporated in the standard 2G wire manufacturing, with no modifications to the current process. The enhanced performance of the wire will benefit rotating machine and magnet applications.
Applications and Industries
The increased critical currents of the HTS wires produced as a result of the irradiation process render them especially suitable for use in applications subject to an applied magnetic field. The irradiated coated conductors may be employed in motors, transformers, generators, high field magnetics, and solenoids.
Journal Publication & Intellectual Property
- US 10,242,770 B2 (.pdf)
- EP 3338312 B1 (.pdf)
- KR 102019615 B1 (.pdf)
- Engineered Pinning Landscapes for Enhanced 2G Coil Wire (.pdf)
Tags: HTSsuperconductor
Contacts
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Poornima Upadhya
Manager Technology Transfer & Commercialization
Technology Commercialization
(631) 344-4711, pupadhya@bnl.gov
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Avijit Sen
IP Licensing & Commercialization
Technology Commercialization
(631) 344-3752, asen@bnl.gov
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