NDLI: Losses in superconducting wires with inhomogeneous and anisotropic matrix conductivity over cross section

Content Provider	IEEE Xplore Digital Library
Author	Aksenova, E.N.
Copyright Year	1965
Abstract	Methods of calculating energy losses for multifilamentary wires with anisotropic and inhomogeneous conductivity of a matrix over the cross section are developed, in particular, for wires with a cluster assembly. Analysis of diffusion of the magnetic flux and dissipative characteristics for the multifilamentary wire in the transverse AC magnetic field shows that: (1) in the case of the matrix anisotropic conductivity the processes of current coupling are antiparallel, making a contribution to losses, which is proportional to one of the matrix components, sigma /sub 1/; (2) the presence of the matrix conductivity inhomogeneity causes peculiarities in the saturation process, namely, that the longitudinal-to-the-filaments electric field has local maxima at the outer and the inner radii; (3) this circumstance explains the process of parallel saturation of groups of filaments and the wire as a whole, taking place in the wire with cluster assembly; and (4) the rise of the ratio of hysteresis losses to the filament diameter with decrease of the latter for diameter approximately 1 mu m can be accounted for by the cluster saturation and increase of filament inhomogeneity in their thinning without recourse to the proximity effect.<>
Sponsorship	IEEE Magnetics Society
Starting Page	2101
Ending Page	2104
Page Count	4
File Size	356424
File Format	PDF
ISSN	00189464
Volume Number	25
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1989-03-01
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 filaments and wires Anisotropic magnetoresistance Conductivity Nonuniform electric fields Assembly Energy loss Cause effect analysis Magnetic analysis Magnetic flux Couplings
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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