NDLI: Limiting currents in superconducting composites

Content Provider	IEEE Xplore Digital Library
Author	Keilin, V.E. Romanovskii, V.R.
Copyright Year	1965
Abstract	Results of numerical and analytical calculations of the process of current charging into a round superconducting composite with properties homogenized over cross section are presented. A wire with real volt-ampere characteristics approximated by an exponential dependence was considered. Calculations were carried out for various rates of current charging, volt-ampere characteristics, matrix materials, heat transfer coefficients, and other parameters. The results showed the existence of characteristic limiting value of current below which the wire remains in a superconducting state if the current charging ceases and above which it changes into a normal state; this current is somewhat less than a quench current. The existence of a finite value for limiting current at any low heat transfer from a surface was also shown. In addition, the analytical solution of the problem is given. It made it possible to formulate the stability criterion from which the dependence of limiting currents on initial parameters follows.<>
Sponsorship	IEEE Magnetics Society
Starting Page	771
Ending Page	774
Page Count	4
File Size	426076
File Format	PDF
ISSN	00189464
Volume Number	28
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1992-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Superconducting magnets Superconducting filaments and wires Heat transfer Resistance heating Surface charging Thermal conductivity Temperature Equations Electromagnetic analysis Stability criteria
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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