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Title
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AC susceptibility measurements : a quality test for high superconducting bulk materials
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Author
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Abstract
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| 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. |
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Language
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English
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Source (journal)
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Journal of alloys and compounds. - Amsterdam
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Source (book)
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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
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Publication
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Amsterdam
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1993
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ISSN
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0925-8388
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DOI
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10.1016/0925-8388(93)90714-X
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Volume/pages
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195
:1-2
(1993)
, p. 177-180
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ISI
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A1993LC49200043
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Full text (Publisher's DOI)
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Full text (publisher's version - intranet only)
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