Critical Current Measurement in HTS Bi2212 Ribbons and Round Wires

Abstract

Recent progresses in Bi2212 wires have proved its suitability for round wire developments and high field magnet insert manufacturing. In order to prepare cabling developments the Commissariat a l'Energie Atomique at Saclay has developed in collaboration with the Nexans Company a Bi2212 wire having 18 sub-elements. The results of the critical current measurement are presented here and compared with already existing ribbons. The round wire has also been twisted to study twisting degradation.