Hysteresis loss and critical current density of multifilamentary (NbW)(3)Sn composite conductor for AC use

Authors
Yasohama, K Kubota, Y Kobayashi, H Ogasawara, T Kasahara, H Torii, S Akita, S
Citation
K. Yasohama et al., Hysteresis loss and critical current density of multifilamentary (NbW)(3)Sn composite conductor for AC use, PHYSICA C, 354(1-4), 2001, pp. 252-255
Citations number
4
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA C
ISSN journal
09214534 → ACNP
Volume
354
Issue
1-4
Year of publication
2001
Pages
252 - 255
Database
ISI
SICI code
0921-4534(200105)354:1-4<252:HLACCD>2.0.ZU;2-7
Abstract
A multifilamentary Nb3Sn composite conductor for AC use was fabricated by t he internal tin-core method. In this conductor, Nb-lat.%W is used for filam ents and Cu-1at.%Ni for matrix. The conductor has 33,252 filaments of a dia meter of 0.36 mum. Samples of conductor were heat treated at 450-700 degree sC for 24-740 h and the critical current and magnetization were measured at 4.2 K in transverse fields up to 5 T. Overall critical current density of 4.9 GA/m(2) at 1.5 T is obtained with a heat treated at 600 degreesC for 20 0 h. The effective filament diameter was estimated to be 3-5 mum at 1.5 T. (C) 2001 Elsevier Science B.V. All rights reserved.