@article{oai:repo.lib.tut.ac.jp:00001558, author = {稲田, 亮史 and 馬場, 翔平 and 大津, 良介 and 牧原, 知秀 and 坂元, 周作 and 太田, 昭男 and Inada, Ryoji and Baba, Shohei and Ohtsu, Ryosuke and Makihara, Tomohide and Sakamoto, Shusaku and Oota, Akio}, issue = {3}, journal = {IEEE Transactions on Applied Superconductivity}, month = {Jun}, note = {We investigated remanent field distributions for commercial Bi2223 tapes with length of 1 m and high critical current Ic of 150 A (77 K, self-field) developed by Sumitomo Electric Industries (SEI) Ltd., by scanning Hall-probe microscopy (SHM) with an active area of 50 μm × 50 μm. All tapes are prepared by powder-in-tube process and sintered by controlled-over pressure (CT-OP) processing at final sintering stage. A bare tape and a 3-ply reinforced one with stainless tape laminations were used for measurements. The distribution of remanent field Brz in perpendicular to broader face of a magnetized tape was measured using SHM, at a fixed distance of 0.5 mm away from a tape surface. Although absolute Brz values in a reinforced tape were 10% lower than bare one, the shape of Brz profile along a lateral direction of a tape was hardly affected by reinforcement and uniformly distributed along a length of each tape. Moreover, we cut away 15 cm piece sample from each tape and measured Brz profile before and after double-sided bending with a bending diameter of 30 mm. The results indicated that degradation in both intensity and longitudinal uniformity of Brz for a reinforced tape is much smaller than for a bare one.}, pages = {2816--2819}, title = {Longitudinal Uniformity of Commercial Bi2223 Tapes Characterized by Scanning Hall-Probe Microscopy}, volume = {21}, year = {2011} }