Publication
Title
AC susceptibility measurements : a quality test for high $T_{c}$ superconducting bulk materials
Author
Abstract
 Temperature dependent measurements of high T(c) bulk material reflect the quality of the high T(c) grains and the intergranular weak links. Besides, ac field dependent measurements give access to a quantitative quality label of the bulk material : its critical current density J(c). Herefore critical state models as the Bean and the Kim model are used. Our measurements on long orthorombic samples with different cross sections a x b show that the Kim model is the most realistic one. It leads to a b/a independent average value of J(c), which equals the J(c) value of transport measurements and of magnetic SQUID measurements at low dc fields.
Language
English
Source (journal)
Journal of alloys and compounds. - Amsterdam
Source (book)
SYMP ON HIGH TEMPERATURE SUPERCONDUCTORS, AT THE 1992 FALL MEETING OF, THE E-MRS / 3RD EUROPEAN EAST-WEST CONF AND EXHIBITION ON MATERIALS AND, PROCESSES, NOV 03-06, 1992, STRASBOURG, FRANCE
Publication
Amsterdam : 1993
ISSN
0925-8388
Volume/pages
195:1-2(1993), p. 177-180
ISI
A1993LC49200043
Full text (Publishers DOI)
Full text (publishers version - intranet only)
UAntwerpen
 Faculty/Department Research group Publication type Subject Affiliation Publications with a UAntwerp address