Title AC susceptibility measurements : a quality test for high $T_{c}$ superconducting bulk materials Author Buekenhoudt, A. Weyten, H. Devos, P. Servaes, F. Cornelis, J. Faculty/Department Faculty of Applied Economics Publication type article Publication 1993 Amsterdam , 1993 Subject Physics Chemistry Engineering sciences. Technology 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 Volume/pages 195(1993) :1-2 , p. 177-180 ISSN 0925-8388 ISI A1993LC49200043 Carrier E Target language English (eng) Full text (Publishers DOI) Affiliation University of Antwerp 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. E-info https://repository.uantwerpen.be/docman/iruaauth/f74c56/0c34883.pdf http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1993LC49200043&DestLinkType=RelatedRecords&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1993LC49200043&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1993LC49200043&DestLinkType=CitingArticles&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848 Handle