Objetivo Objectives and content The proposal research aims at developing a Bi(2223) high temperature superconductor tape for the special purpose to carry alternating currents with minimised losses. These kind of tapes are important for the development of AC loaded devices like superconducting power cables, transformers or energy storage systems (SMES) using high temperature superconducting coils. The realisation of such low AC loss tapes requires tape properties being completely different from the presently existing Bi(2223) /Ag two component composites. First an enhanced number of superconducting filaments (> 19) with cross section dimensions smaller than 10 m and a filling ratio of > 25 % have to be realized restricting on preparation methods suitable for long lengths. A further modification is a twist of the filaments along the wire with twist pitches in the order of 10 mm without or negligible influence on the transport current capability. A severe disadvantage of the presently used Ag matrix materials is their high electrical conductivity which favours electrical coupling of the filaments. Therefore the most innovative challenge of the present proposal is the development of a multicomponent tape configuration using material combinations which increase the electrical resistance between the filaments by at least two 'orders of magnitude, but maintaining a conductivity along the tape good enough for thermal stabilisation and which still allow oxygen exchange of the filament with the heat treatment atmosphere. The developed low AC loss Bi(2223) tapes will intensively be investigated with respect to AC losses and mechanical and superconducting behaviour to characterise their properties with respect to practical use. Final tape lengths of e > 100 m with projected transport currents densities of 8000 Acm-2 overall will be tested in power cable arrangements through industrial developers and suppliers to evaluate their improved properties and their potential for industrial application. Ámbito científico engineering and technologymaterials engineeringcompositesnatural sciencesphysical scienceselectromagnetism and electronicssuperconductivity Programa(s) FP4-BRITE/EURAM 3 - Specific research and technological development programme in the field of industrial and materials technologies, 1994-1998 Tema(s) 0202 - New methodologies for product design and manufacture Convocatoria de propuestas Data not available Régimen de financiación CSC - Cost-sharing contracts Coordinador FORSCHUNGSZENTRUM KARLSRUHE GMBH - TECHNIK UND UMWELT Aportación de la UE Sin datos Dirección 5,Hermann von Helmholtz Platz 1 76344 EGGENSTEIN-LEOPOLDSHAFEN Alemania Ver en el mapa Coste total Sin datos Participantes (8) Ordenar alfabéticamente Ordenar por aportación de la UE Ampliar todo Contraer todo IMPERIAL COLLEGE OF SCIENCE, TECHNOLOGY AND MEDICINE Reino Unido Aportación de la UE Sin datos Dirección Prince Consort Road, Blackett Laboratory - Imperia SW7 2BZ LONDON Ver en el mapa Coste total Sin datos Istituto Nazionale per la Fisica della Materia Italia Aportación de la UE Sin datos Dirección Via Dodecaneso 33 16146 GENOVA Ver en el mapa Coste total Sin datos National Grid Company plc Reino Unido Aportación de la UE Sin datos Dirección Kelvin Avenue KT22 7ST Leatherhead Ver en el mapa Coste total Sin datos PIRELLI CAVI E SISTEMI SPA Italia Aportación de la UE Sin datos Dirección Viale Sarca 222 20126 MILANO Ver en el mapa Coste total Sin datos Siemens AG Alemania Aportación de la UE Sin datos Dirección 100,Paul-Gossen-Straße 91052 Erlangen Ver en el mapa Coste total Sin datos Swissmetal Works Ltd Suiza Aportación de la UE Sin datos Dirección 50,Weidenstrasse 4143 Dornach Ver en el mapa Coste total Sin datos UNIVERSITY OF GENEVA Suiza Aportación de la UE Sin datos Dirección 24,Quai Ernest Ansermet 24 1211 GENEVE Ver en el mapa Coste total Sin datos UNIVERSITY OF TWENTE Países Bajos Aportación de la UE Sin datos Dirección 7500 AE ENSCHEDE Ver en el mapa Coste total Sin datos