"TITLE","AUTHORS","SUBJECT","SUBJECT_RELATED","DESCRIPTION","PUBLISHER","AVAILABILITY","RESEARCH_ORG","SPONSORING_ORG","PUBLICATION_COUNTRY","PUBLICATION_DATE","CONTRIBUTING_ORGS","LANGUAGE","RESOURCE_TYPE","TYPE_QUALIFIER","JOURNAL_ISSUE","JOURNAL_VOLUME","RELATION","COVERAGE","FORMAT","IDENTIFIER","REPORT_NUMBER","DOE_CONTRACT_NUMBER","OTHER_IDENTIFIER","DOI","RIGHTS","ENTRY_DATE","OSTI_IDENTIFIER","PURL_URL" "Transport ac losses in Bi-2223 multifilamentary tapes - conductor materials aspect","Glowacki, B A [IRC in Superconductivity, University of Cambridge, Madingley Road, Cambridge CB3 0HE (United Kingdom)]; Department of Materials Science and Metallurgy, University of Cambridge, Pembroke Street, Cambridge BC2 3QZ (United Kingdom)]; Majoros, M [IRC in Superconductivity, University of Cambridge, Madingley Road, Cambridge CB3 0HE (United Kingdom)]; Institute of Electrical Engineering, SAS, Bratislava (Slovakia)]","36 MATERIALS SCIENCE; AC LOSSES; BISMUTH OXIDES; HIGH-TC SUPERCONDUCTORS; MINIMIZATION; PRESSING; ROLLING; SUPERCONDUCTING WIRES; SUPERCONDUCTIVITY","","Transport ac losses in technical superconductors based on Bi-2223 tape material are influenced by many parameters. The major factors that define the ac performance of such conductors are the following: the size and number of filaments, their geometrical arrangement in the cross-section of the conductor, the twist pitch length, the resistivity of the matrix, the presence of oxide barriers around the filaments and deformation procedures such as sequential pressing or rolling followed by appropriate thermal treatment. In the present paper the above aspects are addressed from the viewpoint of the materials science of technical conductor design. Transport ac losses at power frequencies in different types of Bi-2223 conductor are presented and analysed. The results of conductor design analysis with respect to the coexistence of the superconductor with other materials in the conductor structure are presented. New concepts for minimization of the transport ac losses are discussed in detail. (author)","","","","","United Kingdom","2000-05-01","","English","Journal Article","","5","13","Journal Name: Superconductor Science and Technology (Online); Journal Volume: 13; Journal Issue: 5; Conference: 4. European conference on applied superconductivity, Sitges (Spain), 14-17 Sep 1999; Other Information: Country of input: IAEA; 18 refs; PBD: May 2000","","Medium: X; Size: page(s) 483-487","","","","Journal ID: ISSN 1361-6668; TRN: GB00$0121030191","https://doi.org/10.1088/0953-2048/13/5/310","","2010-12-30","20070732",""