NDLI: Angle-Dependent U(I) Measurements of HTS Coated Conductors

Content Provider	IEEE Xplore Digital Library
Author	Leys, P.M. Klaeser, M. Schleissinger, F. Schneider, T.
Copyright Year	2002
Abstract	Increasing magnetic fields generated by pure superconducting high field magnets to greater than 25 T is not possible with the LTS NbTi and NbSn conductors that are currently used. Therefore, the next step is to use the HTS REBCO-CC, which has a greater critical current density, J_c, at higher magnetic fields. Because of the anisotropy of this type of superconductor, its critical properties change according to its orientation with respect to an external magnetic field and therefore further analysis is necessary before these REBCO conductors can be used for a high field insert coil within the experimental facility HOMER II. To study the effect of orientation and magnetic field strength, U(I) measurements of several commercial CCs were carried out in our JUMBO facility in a free bore of 100 mm and magnetic field up to 10 T at 4.2 K and 77 K. The angle between the applied field and the normal vector to the tape can be adjusted between 0 and 180°. The resulting U(I) curves were approximated by various mathematical models using Matlab software, and from these the parameters describing the angular dependence of the critical current, I_c, were determined. Three-dimensional surface plots of I_c as a function of angle and field strength were produced and a suitable fit found. The fitted function was then extrapolated up to 30 T to enable the determination of the behavior of the superconductor in the high field region.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	8000604
Ending Page	8000604
Page Count	1
File Size	1207634
File Format	PDF
ISSN	10518223
Volume Number	23
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	High temperature superconductors Superconducting magnets Magnetic field measurement Conductors Magnetic fields Temperature measurement Current measurement HTS Angular dependence critical current high field magnets
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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Corrections to “Angle-Dependent U(I) Measurements of HTS Coated Conductors” [Jun 13 8000604]

Field Angular Dependence of Hysteresis Losses of Coated Conductor for High Field Magnets

Study of HTS Wires at High Magnetic Fields

Scan Techniques for Coated Conductors

High Field HTS Solenoid for a Muon Collider—Demonstrations, Challenges, and Strategies

The effect of magnetic field orientation on the critical current of HTS conductor and coils

Characterization of YBCO Coated Conductors Under High Magnetic Field at LNCMI

Preparation and Experimental Investigation of Heavy-Current Transposed HTS Conductors

Design, Fabrication, and Performance Tests of a HTS Superconducting Dipole Magnet

Angle-Dependent U(I) Measurements of HTS Coated Conductors

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Corrections to “Angle-Dependent U(I) Measurements of HTS Coated Conductors” [Jun 13 8000604]

Field Angular Dependence of Hysteresis Losses of Coated Conductor for High Field Magnets

Study of HTS Wires at High Magnetic Fields

Scan Techniques for Coated Conductors

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Characterization of YBCO Coated Conductors Under High Magnetic Field at LNCMI

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Angle-Dependent U(I) Measurements of HTS Coated Conductors